spring boot 项目访问controller报错 20C

搭建最基本的spring boot项目,版本是2.0.4.RELEASE。
整合mybatis, 从数据库中查询数据。
我想 通过浏览器,直接访问controller,看到json格式的数据;
但是,控制台中能看到查询的数据,接下来就报错。

Controller

 @Controller
public class UserController {
    @Autowired
    private UserService userService;

    @GetMapping("/findAll")
    @ResponseBody
    public List<User> findAll(){
        List<User> list = userService.findAll();

        System.out.println(Arrays.toString(list.toArray()));

        return userService.findAll();
    }

}

访问 http://localhost:1111/findAll
浏览器端没有显示json格式数据

控制台先显示查询出来的数据,然后报错;

 [User{id='122221', status='1', roleId='03bd3cc782b242bbab08c464ac35b0fa', 
 remark='监控大盘', UpdateTime=2018-08-16 15:10:27.0}, User{id='12222221', status='1', roleId='03bd3cc782b242bbab08c464ac35b0fa', remark='监控大盘', UpdateTime=2018-08-16 15:10:27.0}, User{id='yyx', status='1', roleId='yyx0101', remark='监控大盘', UpdateTime=2018-08-16 15:10:27.0}]


2018-08-21 17:03:55.089  INFO 17728 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry  : Running the evict task with compensationTime 410ms
2018-08-21 17:03:55.132 ERROR 17728 --- [nio-1111-exec-8] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/module/jaxb/JaxbAnnotationIntrospector] with root cause

java.lang.ClassNotFoundException: com.fasterxml.jackson.module.jaxb.JaxbAnnotationIntrospector

按照之前的想法,加上了@ResponseBody 注解后,方法返回的数据应该被springboot内置的jackson,转换成了json格式的数据, 然后浏览器端直接显示的。
不知道问题出在哪里?

10个回答

试下去掉@ResponseBody,然后把@Controller换成@RestController

wuxiongbo
kepwo 试过了,还是出现一样的情况
接近 2 年之前 回复

浏览器查看一下,数据是否返回页面了。
1.如果返回了,说明是页面数据接收错误。
2.如果页面没有返回,说明你后台的错误,找不到类,可以添加一下依赖

wuxiongbo
kepwo 回复weixin_42632514: 浏览器查看的响应的数据就是这个错误页面。应该是后台数据没有传输到浏览器来。依赖中重新配置了jacson ,以及添加了jaxb的依赖, 还是会出现一样的问题
接近 2 年之前 回复
weixin_42632514
慎独_llc 详情可以看看这个 https://blog.csdn.net/hadues/article/details/79188793
接近 2 年之前 回复

@RestController 是将请求换成json格式输出,你应该是哪里的配置不对,可以看看我的这边文章:https://somta.com.cn/#/blog/view/ef507e4e6e28434d9787ec715d406491 ,我也是用spring boo 2.0 整合mybatis的,有详细的过程和代码

重点是java.lang.ClassNotFoundException: com.fasterxml.jackson.module.jaxb.JaxbAnnotationIntrospector,转json返回前台报错,pom.xml里面配置的架包不对,可以试试下面的添加配置

com.fasterxml.jackson.core
jackson-databind
2.4.0

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.4.0</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.4.0</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.jaxrs</groupId>
    <artifactId>jackson-jaxrs-json-provider</artifactId>
    <version>2.4.0</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.module</groupId>
    <artifactId>jackson-module-jaxb-annotations</artifactId>
    <version>2.4.0</version>
</dependency> 
diweikang
diweikang 回复kepwo: 哪里配置有问题 我也报这个错
9 个月之前 回复
wuxiongbo
kepwo 确实配置有问题,问题解决了一半,把eureka那段依赖注释掉后就正常访问了。。。但是接下来没办法用eureka了
接近 2 年之前 回复
wuxiongbo
kepwo 应该是转换这里有问题, 我添加这段依赖进去,springboot启动直接报错
接近 2 年之前 回复

楼主试一下@RequestMapping这个注解看看可以不。把@GetMapping换掉。

wuxiongbo
kepwo 还是一样。。。
接近 2 年之前 回复

pom配置

 <?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>spring-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>spring-demo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- MyBatis启动器 -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>
        <!-- mysql驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- 配置c3p0连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>

        <!-- eureka 注册中心 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <!-- springcloud -->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

spring boot 版本换成 1.5.x 的,


org.springframework.boot
spring-boot-starter-parent
1.5.7.RELEASE


org.springframework.boot
spring-boot-starter-parent
1.5.7.RELEASE
<!-- lookup parent from repository -->


可能是你UpdateTime 这个时间格式 引起的
spring boot 默认支持一种时间格式 而你的时间格式不是默认格式导致报错
而你打印出来的时间格式 又不是java的格式 类似这种 'Wed Jul 06 10:17:48 CST 2016'
说明你格式化的啦 UpdateTime 这个属性是不是加啦 注解 格式化啦
如果你要格式化时间 不用再注解属性格式化 可以在配置文件直接加
spring.mvc.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8
ps: 加啦这个配置以后 前端提交的时候 也要这种时间格式提交数据不是会报错

确定了是方法返回数据后转换为json格式时出现问题;我在配置中改了一下,把eureka那段依赖注释掉后就正常访问了。。。问题解决了一半,但是接下来没办法用eureka了;

Csdn user default icon
上传中...
上传图片
插入图片
抄袭、复制答案,以达到刷声望分或其他目的的行为,在CSDN问答是严格禁止的,一经发现立刻封号。是时候展现真正的技术了!
其他相关推荐
Spring boot 如何执行Controller中的初始化方法

我有一个BaseController.java 类,所有其他类继承该BaseController,如下 ``` public class BaseController { private HttpServletRequest request; private HttpServletResponse response; public void init(HttpServletRequest request, HttpServletResponse response) { this.request = request; this.response = response; } } ``` 我的目的是要每次请求进入具体Controller之前先掉用init方法。这个有没有可行性啊。(PS:我尝试过用拦截器,但实现不了)

Spring boot controller类加入@Autowired注解启动报错

![图片说明](https://img-ask.csdn.net/upload/201904/11/1554974904_886024.png) 工程结构 ``` //下面是全部的代码,最下面时错误日志。第一次提问,不知道插入代码片的格式是不是这样的,跪求大神指导,已经看了很多解决方案,但都无法解决我的问题,注释掉Autowired或者@注释掉Autowired(required=false)虽然可以启动项目,但是程序执行时又会发生错误,问题是逃避不了的。再次跪求大神指导。 //controller package controller; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import bean.AppMessage; import service.AppMessageService; @RestController @RequestMapping("/appmessage") public class AppMessageController { @Autowired/*(required=false)*/ private AppMessageService service; @RequestMapping("/getThree") public List<AppMessage> getThreeForMessage(){ List<AppMessage> list = service.getMessage(); return list; } @RequestMapping("/getAll") public List<AppMessage> getAllMessage(){ List<AppMessage> list = service.getAllMessage(); int num = list.size(); if(null!=list && num>3){ for (int i = 0; i < num-3; i++) { list.remove(0); } } return list; } @RequestMapping("/getByID") public List<AppMessage> getMessageById(@RequestParam("id") String id){ List<AppMessage> list = service.getMessageById(id); int num = list.size(); if(null!=list && num>5){ for (int i = 0; i < num-5; i++) { list.remove(0); } } return list; } @RequestMapping(value = "/add",method = RequestMethod.POST) public int addMessage(@RequestBody AppMessage appMessage){ return service.addMessage(appMessage); } @RequestMapping(value="/delMessageById",method=RequestMethod.POST) public int delMessageById(@RequestParam("id") String id){ return service.delMessage(id); } } ``` ``` //Service package service; import java.util.ArrayList; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import bean.AppMessage; import mapper.AppMessageMapper; @Transactional @Service("appMessageService") public class AppMessageService { @Autowired private AppMessageMapper mapper; public List<AppMessage> getMessage(){ List<AppMessage> list = new ArrayList<AppMessage>(); list.add(mapper.selectByPrimaryKey("xtt")); //list = mapper.selectAll(); return list; } public List<AppMessage> getAllMessage(){ List<AppMessage> list = new ArrayList<AppMessage>(); list = mapper.selectAll(); return list; } public int addMessage(AppMessage appMessage) { return mapper.insert(appMessage); } public List<AppMessage> getMessageById(String id) { return mapper.getMessById(id); } public int delMessage(String id) { return mapper.deleteByPrimaryKey(id); } } ``` ``` //Mapper 接口,映射到mapper.xml package mapper; import java.util.List; import bean.AppMessage; public interface AppMessageMapper { int deleteByPrimaryKey(String id); int insert(AppMessage record); int insertSelective(AppMessage record); AppMessage selectByPrimaryKey(String id); int updateByPrimaryKeySelective(AppMessage record); int updateByPrimaryKey(AppMessage record); List<AppMessage> selectAll(); List<AppMessage> getMessById(String id); } ``` ``` <!-- Mapper.xml文件 --> <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <mapper namespace="mapper.AppMessageMapper" > <!-- 对应mapper接口的位置 --> <resultMap id="BaseResultMap" type="bean.AppMessage" > <id column="id" property="id" jdbcType="VARCHAR" /> <result column="message" property="message" jdbcType="VARCHAR" /> <result column="senddate" property="senddate" jdbcType="TIMESTAMP" /> </resultMap> <sql id="Base_Column_List" > id, message, senddate </sql> <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String" > select <include refid="Base_Column_List" /> from appuser_message where id = #{id,jdbcType=VARCHAR} </select> <delete id="deleteByPrimaryKey" parameterType="java.lang.String" > delete from appuser_message where id = #{id,jdbcType=VARCHAR} </delete> <insert id="insert" parameterType="bean.AppMessage" > insert into appuser_message (id, message, senddate ) values (#{id,jdbcType=VARCHAR}, #{message,jdbcType=VARCHAR}, #{senddate,jdbcType=TIMESTAMP} ) </insert> <insert id="insertSelective" parameterType="bean.AppMessage" > insert into appuser_message <trim prefix="(" suffix=")" suffixOverrides="," > <if test="id != null" > id, </if> <if test="message != null" > message, </if> <if test="senddate != null" > senddate, </if> </trim> <trim prefix="values (" suffix=")" suffixOverrides="," > <if test="id != null" > #{id,jdbcType=VARCHAR}, </if> <if test="message != null" > #{message,jdbcType=VARCHAR}, </if> <if test="senddate != null" > #{senddate,jdbcType=TIMESTAMP}, </if> </trim> </insert> <update id="updateByPrimaryKeySelective" parameterType="bean.AppMessage" > update appuser_message <set > <if test="message != null" > message = #{message,jdbcType=VARCHAR}, </if> <if test="senddate != null" > senddate = #{senddate,jdbcType=TIMESTAMP}, </if> </set> where id = #{id,jdbcType=VARCHAR} </update> <update id="updateByPrimaryKey" parameterType="bean.AppMessage" > update appuser_message set message = #{message,jdbcType=VARCHAR}, senddate = #{senddate,jdbcType=TIMESTAMP} where id = #{id,jdbcType=VARCHAR} </update> <select id="selectAll" resultMap="BaseResultMap"> select id, message, senddate from appuser_message order by senddate </select> <select id="getMessById" resultMap="BaseResultMap" parameterType="java.lang.String"> select id, message, senddate from appuser_message where id = #{id,jdbcType=VARCHAR} order by senddate asc </select> </mapper> ``` ``` //实体类 package bean; import java.util.Date; public class AppMessage { private String id; private String message; private Date senddate; public String getId() { return id; } public void setId(String id) { this.id = id == null ? null : id.trim(); } public String getMessage() { return message; } public void setMessage(String message) { this.message = message == null ? null : message.trim(); } public Date getSenddate() { return senddate; } public void setSenddate(Date senddate) { this.senddate = senddate; } } ``` ``` //启动类 package com.shuai.spring_boot_1; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ComponentScan; /** * Hello world! * */ @ComponentScan(basePackages="controller") @SpringBootApplication public class App { public static void main(String[] args) { SpringApplication.run(App.class, args); } } ``` ``` pom.xml <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.5.RELEASE</version> </parent> <groupId>com.shuai</groupId> <artifactId>spring-boot-1</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>spring-boot-1</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> <!--web应用基本环境配置 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>com.jayway.jsonpath</groupId> <artifactId>json-path</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.0.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!-- <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <version>1.3.5.RELEASE</version> </dependency> --> </dependencies> <build> <plugins> <!-- spring-boot-maven-plugin插件就是打包spring boot应用的 --> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> ``` ``` #properties文件 spring.datasource.url=jdbc:mysql://localhost:3306/world spring.datasource.username=root spring.datasource.password=000000 spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.max-idle=10 spring.datasource.max-wait=10000 spring.datasource.min-idle=5 spring.datasource.initial-size=5 server.port=8012 server.session.timeout=10 server.tomcat.uri-encoding=UTF-8 # mybatis.config= classpath:mybatis-config.xml mybatis.mapperLocations=classpath:mappers/*.xml # domain object's package #mybatis.typeAliasesPackage=com.lgp.SpringBoot.bean mybatis.typeAliasesPackage=bean # handler's package # mybatis.typeHandlersPackage= # check the mybatis configuration exists # mybatis.check-config-location= # mode of execution. Default is SIMPLE # mybatis.executorType= ``` ![图片说明](https://img-ask.csdn.net/upload/201904/11/1554976465_217387.png) 错误日志

eclipse的springboot一直无法访问controller

eclipse 的springboot项目的hello显示,tomcat访问404,先说明端口未被占用,因为空项目可以访问tomcat的localhost。 百度了很久,说法最多的一种就是controller等子包要和主程序application.java同列,但我这个问题不存在,就是是访问不了controller 项目: 主程序: ```@SpringBootApplication //@ComponentScan(basePackages= {"com.example.demo.controller"}) public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } } ``` controller: ``` @Controller @EnableAutoConfiguration public class TestController { @ResponseBody @RequestMapping("/hello") public String hello() { return "<font style='font-size:28px;'>Hello Spring Boot</font>"; } } ``` pom.xml: ``` <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.4.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>demo</name> <description>Demo project for Spring Boot</description> <properties> <java.version>11</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- Thymeleaf组件 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> ``` tomcat访问名我设置了/ 然后百度localhost:8080/hello 无论如何就是出不来

导入的spring boot项目,里面有的jsp页面可以访问,为什么我新建的jsp文件访问不了

application.properties ![图片说明](https://img-ask.csdn.net/upload/201909/23/1569206946_552631.png) controller ![图片说明](https://img-ask.csdn.net/upload/201909/23/1569206654_102464.png) 报错如下 ![图片说明](https://img-ask.csdn.net/upload/201909/23/1569206446_55413.png) 大致目录 ![图片说明](https://img-ask.csdn.net/upload/201909/23/1569209540_666232.png) 新手刚学的,希望有会的人,能够帮帮我,谢谢!

用main方法启动成功,但是用外置tomacat启动spring boot项目报错

用main方法启动成功,但是用外置tomacat启动spring boot项目报xia'm错: 2020-02-11 19:33:30.588 INFO 12292 --- [on(2)-127.0.0.1] com.wisezone.docker.api.TestDemo : No active profile set, falling back to default profiles: default 2020-02-11 19:33:30.983 WARN 12292 --- [on(2)-127.0.0.1] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.wisezone.docker.api.TestDemo]; nested exception is java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist 2020-02-11 19:33:31.090 ERROR 12292 --- [on(2)-127.0.0.1] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.wisezone.docker.api.TestDemo]; nested exception is java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:184) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:706) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:152) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:132) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:92) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172) [spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135) [catalina.jar:9.0.24] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.24] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) [catalina.jar:9.0.24] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) [catalina.jar:9.0.24] 11-Feb-2020 19:33:31.092 严重 [RMI TCP Connection(2)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method [manageApp] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) [catalina.jar:9.0.24] java.lang.IllegalStateException: Error starting child at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728) [catalina.jar:9.0.24] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91] at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728) at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.24] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_91] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) [catalina.jar:9.0.24] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) [catalina.jar:9.0.24] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.24] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_91] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) [na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_91] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_91] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_91] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91] at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) [na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91] at java.security.AccessController.doPrivileged(Native Method) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:324) [na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_91] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91] at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) [na:1.8.0_91] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:324) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) [na:1.8.0_91] at sun.rmi.transport.Transport$1.run(Transport.java:200) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) [na:1.8.0_91] at sun.rmi.transport.Transport$1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91] at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) [na:1.8.0_91] at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_91] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_91] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_91] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) Caused by: java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at java.security.AccessController.doPrivileged(Native Method) at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:56) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:50) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/docker_api_war_exploded]] at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440) at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:686) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] ... 43 more at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:994) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.wisezone.docker.api.TestDemo]; nested exception is java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:335) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:184) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:194) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:298) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:202) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:706) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:170) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] ... 60 common frames omitted at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:152) at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:132) at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:92) at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ... 44 more Caused by: java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180) at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:56) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:50) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86) at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81) at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:686) at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:994) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:335) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:194) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:298) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:202) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:170) ... 60 more

Spring boot的官方实例为何无法运行

本人小白,学Java没多久,刚刚开始接触Spring boot,环境都配置好了,上手用官网上QuickStart试了一下,结果跑不起来。 代码如下: ![图片说明](https://img-ask.csdn.net/upload/201511/19/1447913791_697663.jpg) pom代码: ``` <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.sae.sg.lhf</groupId> <artifactId>hello</artifactId> <version>0.0.1-SNAPSHOT</version> <name>SampleController</name> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.0.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> </project> ``` Java代码: ``` package hello; import org.springframework.boot.*; import org.springframework.boot.autoconfigure.*; import org.springframework.stereotype.*; import org.springframework.web.bind.annotation.*; @Controller @EnableAutoConfiguration public class SampleController { @RequestMapping("/") @ResponseBody String home() { return "Hello World!"; } public static void main(String[] args) throws Exception { SpringApplication.run(SampleController.class, args); } } ``` 几乎是完全按照官网上的实例照搬下来的,但是编译之后报错: ![图片说明](https://img-ask.csdn.net/upload/201511/19/1447914236_256736.jpg) 控制台最后输出也有ERROR: [ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:1.3.0.RELEASE:run (default-cli) on project hello: An exception occured while running. null: InvocationTargetException: Unable to start embedded Tomcat servlet container: Tomcat connector in failed state -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException 求教是什么原因,应该如何修改代码?

求助,Spring Boot启动Eureka报错!

使用Spring Boot Eureka启动注册中心时报错, Spring Boot 版本:1.5.2.RELEASE Spring Cloud 版本:Dalston.RC1 或者 Spring Boot 版本:2.0.2.RELEASE Spring Cloud 版本:Finchley.SR2 两种版本都是报一样的错误。 报错信息如下: Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2019-03-30 09:45:19.682 ERROR 6436 --- [ main] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.cloud.netflix.archaius.ArchaiusAutoConfiguration': Unsatisfied dependency expressed through field 'externalConfigurations'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurableEnvironmentConfiguration' defined in class path resource [org/springframework/cloud/netflix/archaius/ArchaiusAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.apache.commons.configuration.AbstractConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:587) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:373) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1348) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:578) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.2.RELEASE.jar:2.0.2.RELEASE] at com.eureka.demo.DemoApplication.main(DemoApplication.java:12) [classes/:na] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurableEnvironmentConfiguration' defined in class path resource [org/springframework/cloud/netflix/archaius/ArchaiusAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.apache.commons.configuration.AbstractConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:501) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1325) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1291) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1193) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1096) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] ... 19 common frames omitted Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.apache.commons.configuration.AbstractConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:519) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:207) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:188) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:127) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:297) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1020) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE] ... 31 common frames omitted Caused by: java.lang.NoClassDefFoundError: org/apache/commons/lang/text/StrLookup at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_161] at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_161] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_161] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[na:1.8.0_161] at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[na:1.8.0_161] at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[na:1.8.0_161] at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[na:1.8.0_161] at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_161] at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[na:1.8.0_161] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_161] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_161] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_161] at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_161] at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_161] at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_161] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE] ... 38 common frames omitted Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.text.StrLookup at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_161] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_161] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_161] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_161] ... 54 common frames omitted

idea 2020 1 2 spring boot 项目启动报错 ,jdk1.8 项目设置的都是1.8,不知道是撒问题

idea 2020 1 2 启动报错 ,jdk1.8 项目设置的都是1.8,不知道是撒问题 ``` Error:Internal error: (java.lang.UnsupportedClassVersionError) jetbrains/mps/jps/model/impl/JpsMPSModelSerializerExtension has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 java.lang.UnsupportedClassVersionError: jetbrains/mps/jps/model/impl/JpsMPSModelSerializerExtension has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:756) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:468) at java.net.URLClassLoader.access$100(URLClassLoader.java:74) at java.net.URLClassLoader$1.run(URLClassLoader.java:369) at java.net.URLClassLoader$1.run(URLClassLoader.java:363) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:362) at java.lang.ClassLoader.loadClass(ClassLoader.java:418) at java.lang.ClassLoader.loadClass(ClassLoader.java:351) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:370) at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404) at java.util.ServiceLoader$1.next(ServiceLoader.java:480) at com.intellij.util.containers.ContainerUtilRt.copy(ContainerUtilRt.java:114) at com.intellij.util.containers.ContainerUtilRt.newArrayList(ContainerUtilRt.java:99) at com.intellij.util.containers.ContainerUtil.newArrayList(ContainerUtil.java:232) at org.jetbrains.jps.service.impl.JpsServiceManagerImpl$SingleClassLoaderPluginManager.loadExtensions(JpsServiceManagerImpl.java:116) at org.jetbrains.jps.service.impl.JpsServiceManagerImpl.loadExtensions(JpsServiceManagerImpl.java:108) at org.jetbrains.jps.service.impl.JpsServiceManagerImpl.getExtensions(JpsServiceManagerImpl.java:71) at org.jetbrains.jps.model.serialization.JpsModelSerializerExtension.getExtensions(JpsModelSerializerExtension.java:43) at org.jetbrains.jps.model.serialization.library.JpsSdkTableSerializer.getSdkPropertiesSerializer(JpsSdkTableSerializer.java:205) at org.jetbrains.jps.model.serialization.library.JpsSdkTableSerializer.loadSdk(JpsSdkTableSerializer.java:99) at org.jetbrains.jps.model.serialization.library.JpsSdkTableSerializer.loadSdks(JpsSdkTableSerializer.java:80) at org.jetbrains.jps.model.serialization.JpsGlobalLoader$SdkTableSerializer.loadExtension(JpsGlobalLoader.java:142) at org.jetbrains.jps.model.serialization.JpsGlobalLoader$SdkTableSerializer.loadExtension(JpsGlobalLoader.java:135) at org.jetbrains.jps.model.serialization.JpsLoaderBase.loadComponents(JpsLoaderBase.java:46) at org.jetbrains.jps.model.serialization.JpsGlobalLoader.loadGlobalComponents(JpsGlobalLoader.java:80) at org.jetbrains.jps.model.serialization.JpsGlobalLoader.load(JpsGlobalLoader.java:70) at org.jetbrains.jps.model.serialization.JpsGlobalLoader.loadGlobalSettings(JpsGlobalLoader.java:43) at org.jetbrains.jps.model.serialization.impl.JpsSerializationManagerImpl.loadModel(JpsSerializationManagerImpl.java:36) at org.jetbrains.jps.cmdline.JpsModelLoaderImpl.loadModel(JpsModelLoaderImpl.java:34) at org.jetbrains.jps.cmdline.BuildRunner.load(BuildRunner.java:77) at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:274) at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:130) at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:218) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) ```

spring boot项目整合了shiro之后项目启动报错

spring boot项目整合了shiro之后项目启动报错, 我这个是在现有的项目上加了shiro,就会报循环引入这个错误。项目本身启动不会保报错。: Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. [ ERROR] [2019-08-08 17:54:08] org.springframework.boot.SpringApplication [771] - Application startup failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'flowPeopleController': Unsatisfied dependency expressed through field 'flowPeopleService'; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'flowPeopleServiceImpl': Bean with name 'flowPeopleServiceImpl' has been injected into other beans [flowPeopleServiceImpl] in its raw version as part of a circular reference, but has eventually been wrapped. This means that said other beans do not use the final version of the bean. This is often the result of over-eager type matching - consider using 'getBeanNamesOfType' with the 'allowEagerInit' flag turned off, for example. at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) 08-Aug-2019 17:54:08.162 严重 [RMI TCP Connection(2)-127.0.0.1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:364) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1268) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1702) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:764) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:482) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:124) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:431) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:156) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.boot.web.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:136) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) at org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728) at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1702) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at java.lang.reflect.Method.invoke(Method.java:498) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:346) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) at sun.rmi.transport.Transport$1.run(Transport.java:200) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at sun.rmi.transport.Transport$1.run(Transport.java:197) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:482) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:431) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) at java.security.AccessController.doPrivileged(Native Method) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) at java.lang.Thread.run(Thread.java:748) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)

Java Spring Boot 添加 logback.xml 报错

## 这是我的项目架构 ![项目架构](https://img-ask.csdn.net/upload/201712/20/1513749374_354432.png) ### 这是我的controller package com.hatom.dashitwelve.controller; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class IndexController { //logback private final static Logger logger = LoggerFactory.getLogger(IndexController.class); /** * 访问首页 * @return */ @RequestMapping(value = "/index") public String index(){ logger.debug("记录debug日志"); logger.info("访问了index方法"); logger.error("记录error错误日志"); return "index"; } } ### 这是我的 logback.xml <?xml version="1.0" encoding="UTF-8" ?> <configuration debug="false"> <!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径--> <property name="LOG_HOME" value="./logs" /> <!--控制台输出--> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <!--格式化输出 :%d 表示日期,%thread 表示线程名,%-5level 级别从左显示5个字符宽度,%msg 日志消息,%n 换行符--> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder> </appender> <!--按照每天生成日志文件--> <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <!--日志文件输出的文件名--> <FileNamePattern>${LOG_HOME}/runtime.log.%d{yyyy-MM-dd}.log</FileNamePattern> <!--日志文件保留天数--> <MaxHistory>30</MaxHistory> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <!--格式化输出 :%d 表示日期,%thread 表示线程名,%-5level 级别从左显示5个字符宽度,%msg 日志消息,%n 换行符--> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder> <!--日志文件最大的大小--> <triggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy"> <MaxFileSize>10MB</MaxFileSize> </triggeringPolicy> </appender> <!--日志输出级别--> <root level="INFO"> <appender_ref ref="STDOUT"/> <appender_ref ref="FILE"/> </root> </configuration> ### 控制台输出 ![图1](https://img-ask.csdn.net/upload/201712/20/1513751298_100903.png) ![图2](https://img-ask.csdn.net/upload/201712/20/1513751425_673615.png) ### 希望知情认士可以耐心解答,谢谢

Spring Boot 使用JPA连接MySQL数据库报错 is not mapped

小白向各位大侠求助: 创建Spring Boot 工程时,使用JPA连接MySQL数据库,查询时报错,报错信息如下: ``` 2018-06-04 06:34:44.959 ERROR 6116 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessApiUsageException: org.hibernate.hql.internal.ast.QuerySyntaxException: Person is not mapped [select t from Person t]; nested exception is java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: Person is not mapped [select t from Person t]] with root cause org.hibernate.hql.internal.ast.QuerySyntaxException: Person is not mapped at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:169) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:91) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:79) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:326) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3706) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3595) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:720) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:576) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:313) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:261) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:266) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:189) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:141) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:115) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:77) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:153) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:553) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:662) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:23) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:350) ~[spring-orm-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.sun.proxy.$Proxy76.createQuery(Unknown Source) ~[na:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:304) ~[spring-orm-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.sun.proxy.$Proxy76.createQuery(Unknown Source) ~[na:na] at com.neuqsoft.demo.repository.impl.PersonDaoImpl.findAll(PersonDaoImpl.java:52) ~[classes/:na] at com.neuqsoft.demo.repository.impl.PersonDaoImpl$$FastClassBySpringCGLIB$$7895840c.invoke(<generated>) ~[classes/:na] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.neuqsoft.demo.repository.impl.PersonDaoImpl$$EnhancerBySpringCGLIB$$182f86eb.findAll(<generated>) ~[classes/:na] at com.neuqsoft.demo.service.PersonService.findAll(PersonService.java:50) ~[classes/:na] at com.neuqsoft.demo.controller.PersonController.getPseronList(PersonController.java:59) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131] ``` 实体文件: ``` @Entity @Table(name = "person") public class Person { @Id @GeneratedValue(strategy = GenerationType.AUTO) private String id; @Column(name="name") private String name; @Column(name="sex") private String sex; @Column(name="tel") private String tel; @Column(name="address") private String address; @Column(name="age") private String age; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getTel() { return tel; } public void setTel(String tel) { this.tel = tel; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public String getAge() { return age; } public void setAge(String age) { this.age = age; } } ``` 数据库表: ![图片说明](https://img-ask.csdn.net/upload/201806/04/1528064584_339931.jpg) DAO文件: ``` package com.neuqsoft.demo.repository.impl; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import com.neuqsoft.demo.entity.Person; import com.neuqsoft.demo.repository.PersonDao; @Repository public class PersonDaoImpl implements PersonDao { @Autowired @PersistenceContext private EntityManager entityManager; @Override public List<Person> findAll() { return this.entityManager.createQuery("select t from Person t").getResultList(); } } ``` Pom.xml ``` <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.neuqsoft</groupId> <artifactId>DemoJPAForSpringBoot</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>DemoJPAForSpringBoot</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- custom renw --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.0</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> ``` application.properties: ``` #mysql #datasource spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/forspringboot?useSSL=false spring.datasource.username=root spring.datasource.password=1qaz!QAZ spring.jpa.show-sql= true ```

eclipse配置springboot能正常启动而且可以访问静态页面 为什么访问不了Controller?

```package com.huarui; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class SpringbootApplication { public static void main(String[] args) { SpringApplication.run(SpringbootApplication.class, args); } } package com.huarui.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @Controller public class UserController { @RequestMapping("/list") public String gg() { System.out.println("1"); return "list"; } } <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.3.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.huarui</groupId> <artifactId>springboot</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springboot</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> ``` `求大神解答。。。在线等 ``` ``` ```

springboot controller 传参错误

![接口](https://img-ask.csdn.net/upload/201811/19/1542642361_673890.jpg) 两个参数,掉用接口时如果只传一个参数,postman显示500,但是没有错误信息, 控制台打印:(https://img-ask.csdn.net/upload/201811/19/1542642463_487819.jpg)

idea spring boot启动失败

每次启动spring boot都自动停止了,提示Disconnected from the target VM, address: '127.0.0.1:XXXXX', transport: 'socket',每次端口都不一样,重启idea杀掉后台进程都不行,不知道为什么,新建一个空项目也是这样的问题,但是跑以前建的demo就没这个问题,求大神指导!!!

springboot用@RestController可以传递数据但是用@Controller却报错

利用RestController注解 ![图片说明](https://img-ask.csdn.net/upload/201805/11/1526051070_70419.png) ![图片说明](https://img-ask.csdn.net/upload/201805/11/1526051172_291303.png) 利用Controller ![图片说明](https://img-ask.csdn.net/upload/201805/11/1526051334_731815.png) ![图片说明](https://img-ask.csdn.net/upload/201805/11/1526051537_770817.png)

eclipse 启动Spring boot 程序报错 Failed to refresh data from proccess 33356

学习创建第一个Spring boot 程序时,一运行eclipse就报这个错误 ![main方法](https://img-ask.csdn.net/upload/202002/22/1582337685_510298.jpg) ![controller](https://img-ask.csdn.net/upload/202002/22/1582337742_890907.jpg) ![图片说明](https://img-ask.csdn.net/upload/202002/22/1582337970_254643.jpg) ![图片说明](https://img-ask.csdn.net/upload/202002/22/1582338110_453539.jpg)

spring boot上传文件报错

![上传报错信息](https://img-ask.csdn.net/upload/201711/05/1509885728_749970.png) ![controller](https://img-ask.csdn.net/upload/201711/05/1509885753_657987.png) ![配置](https://img-ask.csdn.net/upload/201711/05/1509885771_278676.png) 为什么会报缺少 flie参数???该怎么解决???

Sping Boot注入接口失败

![图片说明](https://img-ask.csdn.net/upload/201804/21/1524291637_361310.png) 项目结构应该是正确的。 ``` @Repository public interface UserDao { public User getById(int id); } ``` Dao层的代码,使用接口。 @Service ``` @Service public class UserService { @Autowired UserDao userDao; public User getById(int id) { return userDao.getById(id); } } ``` service层代码。 controller层注入service。 启动spring boot后会提示dao层没有扫描到,如果@ComponentScan dao层的话,会提示service层注入失败,求解。

springBoot放到tomcat里运行访问不到controller

目录结构如图所示 ![图片说明](https://img-ask.csdn.net/upload/201901/31/1548918842_972424.jpg) controller ![图片说明](https://img-ask.csdn.net/upload/201901/31/1548918915_470976.jpg) 启动tomcat正常 ![图片说明](https://img-ask.csdn.net/upload/201901/31/1548918981_937865.jpg) 访问controller ![图片说明](https://img-ask.csdn.net/upload/201901/31/1548919022_921895.jpg) 这是怎么回事呢,如果我直接用springBoot的内置tomcat是可以正常访问controller的,求大神搭救 不是带不带项目名的原因,都访问不了的。之前一直用的maven,嫌配置文件太麻烦,改用了springBoot

Python数据挖掘简易入门

&nbsp; &nbsp; &nbsp; &nbsp; 本课程为Python数据挖掘方向的入门课程,课程主要以真实数据为基础,详细介绍数据挖掘入门的流程和使用Python实现pandas与numpy在数据挖掘方向的运用,并深入学习如何运用scikit-learn调用常用的数据挖掘算法解决数据挖掘问题,为进一步深入学习数据挖掘打下扎实的基础。

HoloLens2开发入门教程

本课程为HoloLens2开发入门教程,讲解部署开发环境,安装VS2019,Unity版本,Windows SDK,创建Unity项目,讲解如何使用MRTK,编辑器模拟手势交互,打包VS工程并编译部署应用到HoloLens上等。

2019 Python开发者日-培训

本次活动将秉承“只讲技术,拒绝空谈”的理念,邀请十余位身处一线的Python技术专家,重点围绕Web开发、自动化运维、数据分析、人工智能等技术模块,分享真实生产环境中使用Python应对IT挑战的真知灼见。此外,针对不同层次的开发者,大会还安排了深度培训实操环节,为开发者们带来更多深度实战的机会。

Only老K说-爬取妹子图片(简单入门)

安装第三方请求库 requests 被网站禁止了访问 原因是我们是Python过来的 重新给一段 可能还是存在用不了,使用网页的 编写代码 上面注意看匹配内容 User-Agent:请求对象 AppleWebKit:请求内核 Chrome浏览器 //请求网页 import requests import re //正则表达式 就是去不规则的网页里面提取有规律的信息 headers = { 'User-Agent':'存放浏览器里面的' } response = requests.get

2020_五一数学建模_C题_整理后的数据.zip

该数据是我的程序读取的数据,仅供参考,问题的解决方案:https://blog.csdn.net/qq_41228463/article/details/105993051

R语言入门基础

本课程旨在帮助学习者快速入门R语言: 课程系统详细地介绍了使用R语言进行数据处理的基本思路和方法。 课程能够帮助初学者快速入门数据处理。 课程通过大量的案例详细地介绍了如何使用R语言进行数据分析和处理 课程操作实际案例教学,通过编写代码演示R语言的基本使用方法和技巧

人才招聘系统PHP+MySQL源码

PHP 5.0及以上 + MySQL 5.0及以上 开发的人才招聘系统完全可运行源码,按照操作说明简单配置即可运行。学习PHPWEB应用的完整系统程序源码。

Java基础知识面试题(2020最新版)

文章目录Java概述何为编程什么是Javajdk1.5之后的三大版本JVM、JRE和JDK的关系什么是跨平台性?原理是什么Java语言有哪些特点什么是字节码?采用字节码的最大好处是什么什么是Java程序的主类?应用程序和小程序的主类有何不同?Java应用程序与小程序之间有那些差别?Java和C++的区别Oracle JDK 和 OpenJDK 的对比基础语法数据类型Java有哪些数据类型switc...

python可视化分析(matplotlib、seaborn、ggplot2)

python可视化分析总结(matplotlib、seaborn、ggplot)一、matplotlib库1、基本绘图命令3、图形参数设置4、特殊统计图的绘制4.1 数学函数图4.2 气泡图4.1 三维曲面图二、seaborn库1、常用统计图1.1 箱线图1.2 小提琴图1.3 点图1.4 条图与计数图1.5 分组图1.6 概率分布图2、联合图3、配对图三、ggplot库1、图层画法+常用图形2、快速绘图 一、matplotlib库 1、基本绘图命令 import matplotlib.pyplot as

Vue.js 2.0之全家桶系列视频课程

基于新的Vue.js 2.3版本, 目前新全的Vue.js教学视频,让你少走弯路,直达技术前沿! 1. 包含Vue.js全家桶(vue.js、vue-router、axios、vuex、vue-cli、webpack、ElementUI等) 2. 采用笔记+代码案例的形式讲解,通俗易懂

初级玩转Linux+Ubuntu(嵌入式开发基础课程)

课程主要面向嵌入式Linux初学者、工程师、学生 主要从一下几方面进行讲解: 1.linux学习路线、基本命令、高级命令 2.shell、vi及vim入门讲解 3.软件安装下载、NFS、Samba、FTP等服务器配置及使用

人工智能-计算机视觉实战之路(必备算法+深度学习+项目实战)

系列课程主要分为3大阶段:(1)首先掌握计算机视觉必备算法原理,结合Opencv进行学习与练手,通过实际视项目进行案例应用展示。(2)进军当下最火的深度学习进行视觉任务实战,掌握深度学习中必备算法原理与网络模型架构。(3)结合经典深度学习框架与实战项目进行实战,基于真实数据集展开业务分析与建模实战。整体风格通俗易懂,项目驱动学习与就业面试。 建议同学们按照下列顺序来进行学习:1.Python入门视频课程 2.Opencv计算机视觉实战(Python版) 3.深度学习框架-PyTorch实战/人工智能框架实战精讲:Keras项目 4.Python-深度学习-物体检测实战 5.后续实战课程按照自己喜好选择就可以

【大总结2】大学两年,写了这篇几十万字的干货总结

本文十天后设置为粉丝可见,喜欢的提前关注 不要白嫖请点赞 不要白嫖请点赞 不要白嫖请点赞 文中提到的书我都有电子版,可以评论邮箱发给你。 文中提到的书我都有电子版,可以评论邮箱发给你。 文中提到的书我都有电子版,可以评论邮箱发给你。 本篇文章应该算是Java后端开发技术栈的,但是大部分是基础知识,所以我觉得对任何方向都是有用的。 1、数据结构 数据结构是计算机存储、...

lena全身原图(非256*256版本,而是全身原图)

lena全身原图(非256*256版本,而是全身原图) lena原图很有意思,我们通常所用的256*256图片是在lena原图上截取了头部部分的256*256正方形得到的. 原图是花花公子杂志上的一个

【项目实战】 图书信息管理系统(Maven,mybatis)(第一个自己独立完成的项目)

《程序设计综合训练实践报告》 此项目为图书信息管理系统,是一个采用了mysql+mybatis框架+java编写的maven项目

图书管理系统(Java + Mysql)我的第一个完全自己做的实训项目

图书管理系统 Java + MySQL 完整实训代码,MVC三层架构组织,包含所有用到的图片资源以及数据库文件,大三上学期实训,注释很详细,按照阿里巴巴Java编程规范编写

Python入门视频精讲

Python入门视频培训课程以通俗易懂的方式讲解Python核心技术,Python基础,Python入门。适合初学者的教程,让你少走弯路! 课程内容包括:1.Python简介和安装 、2.第一个Python程序、PyCharm的使用 、3.Python基础、4.函数、5.高级特性、6.面向对象、7.模块、8.异常处理和IO操作、9.访问数据库MySQL。教学全程采用笔记+代码案例的形式讲解,通俗易懂!!!

20行代码教你用python给证件照换底色

20行代码教你用python给证件照换底色

2018年全国大学生计算机技能应用大赛决赛 大题

2018年全国大学生计算机技能应用大赛决赛大题,程序填空和程序设计(侵删)

MySQL数据库从入门到实战应用

限时福利1:购课进答疑群专享柳峰(刘运强)老师答疑服务 限时福利2:购课后添加学习助手(微信号:csdn590),按消息提示即可领取编程大礼包! 为什么说每一个程序员都应该学习MySQL? 根据《2019-2020年中国开发者调查报告》显示,超83%的开发者都在使用MySQL数据库。 使用量大同时,掌握MySQL早已是运维、DBA的必备技能,甚至部分IT开发岗位也要求对数据库使用和原理有深入的了解和掌握。 学习编程,你可能会犹豫选择 C++ 还是 Java;入门数据科学,你可能会纠结于选择 Python 还是 R;但无论如何, MySQL 都是 IT 从业人员不可或缺的技能! 【课程设计】 在本课程中,刘运强老师会结合自己十多年来对MySQL的心得体会,通过课程给你分享一条高效的MySQL入门捷径,让学员少走弯路,彻底搞懂MySQL。 本课程包含3大模块:&nbsp; 一、基础篇: 主要以最新的MySQL8.0安装为例帮助学员解决安装与配置MySQL的问题,并对MySQL8.0的新特性做一定介绍,为后续的课程展开做好环境部署。 二、SQL语言篇: 本篇主要讲解SQL语言的四大部分数据查询语言DQL,数据操纵语言DML,数据定义语言DDL,数据控制语言DCL,学会熟练对库表进行增删改查等必备技能。 三、MySQL进阶篇: 本篇可以帮助学员更加高效的管理线上的MySQL数据库;具备MySQL的日常运维能力,语句调优、备份恢复等思路。 &nbsp;

C/C++学习指南全套教程

C/C++学习的全套教程,从基本语法,基本原理,到界面开发、网络开发、Linux开发、安全算法,应用尽用。由毕业于清华大学的业内人士执课,为C/C++编程爱好者的教程。

C/C++跨平台研发从基础到高阶实战系列套餐

一 专题从基础的C语言核心到c++ 和stl完成基础强化; 二 再到数据结构,设计模式完成专业计算机技能强化; 三 通过跨平台网络编程,linux编程,qt界面编程,mfc编程,windows编程,c++与lua联合编程来完成应用强化 四 最后通过基于ffmpeg的音视频播放器,直播推流,屏幕录像,

我以为我对Mysql事务很熟,直到我遇到了阿里面试官

太惨了,面试又被吊打

专为程序员设计的数学课

<p> 限时福利限时福利,<span>15000+程序员的选择!</span> </p> <p> 购课后添加学习助手(微信号:csdn590),按提示消息领取编程大礼包!并获取讲师答疑服务! </p> <p> <br> </p> <p> 套餐中一共包含5门程序员必学的数学课程(共47讲) </p> <p> 课程1:《零基础入门微积分》 </p> <p> 课程2:《数理统计与概率论》 </p> <p> 课程3:《代码学习线性代数》 </p> <p> 课程4:《数据处理的最优化》 </p> <p> 课程5:《马尔可夫随机过程》 </p> <p> <br> </p> <p> 哪些人适合学习这门课程? </p> <p> 1)大学生,平时只学习了数学理论,并未接触如何应用数学解决编程问题; </p> <p> 2)对算法、数据结构掌握程度薄弱的人,数学可以让你更好的理解算法、数据结构原理及应用; </p> <p> 3)看不懂大牛代码设计思想的人,因为所有的程序设计底层逻辑都是数学; </p> <p> 4)想学习新技术,如:人工智能、机器学习、深度学习等,这门课程是你的必修课程; </p> <p> 5)想修炼更好的编程内功,在遇到问题时可以灵活的应用数学思维解决问题。 </p> <p> <br> </p> <p> 在这门「专为程序员设计的数学课」系列课中,我们保证你能收获到这些:<br> <br> <span> </span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">①价值300元编程课程大礼包</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">②应用数学优化代码的实操方法</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">③数学理论在编程实战中的应用</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">④程序员必学的5大数学知识</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">⑤人工智能领域必修数学课</span> </p> <p> <br> 备注:此课程只讲程序员所需要的数学,即使你数学基础薄弱,也能听懂,只需要初中的数学知识就足矣。<br> <br> 如何听课? </p> <p> 1、登录CSDN学院 APP 在我的课程中进行学习; </p> <p> 2、登录CSDN学院官网。 </p> <p> <br> </p> <p> 购课后如何领取免费赠送的编程大礼包和加入答疑群? </p> <p> 购课后,添加助教微信:<span> csdn590</span>,按提示领取编程大礼包,或观看付费视频的第一节内容扫码进群答疑交流! </p> <p> <img src="https://img-bss.csdn.net/201912251155398753.jpg" alt=""> </p>

Eclipse archetype-catalog.xml

Eclipse Maven 创建Web 项目报错 Could not resolve archetype org.apache.maven.archetypes:maven-archetype-web

使用TensorFlow+keras快速构建图像分类模型

课程分为两条主线: 1&nbsp;从Tensorflow的基础知识开始,全面介绍Tensorflow和Keras相关内容。通过大量实战,掌握Tensorflow和Keras经常用到的各种建模方式,参数优化方法,自定义参数和模型的手段,以及对训练结果评估与分析的技巧。 2&nbsp;从机器学习基础算法开始,然后进入到图像分类领域,使用MNIST手写数据集和CIFAR10图像数据集,从简单神经网络到深度神经网络,再到卷积神经网络,最终完成复杂模型:残差网络的搭建。完成这条主线,学员将可以自如地使用机器学习的手段来达到图像分类的目的。

Python代码实现飞机大战

文章目录经典飞机大战一.游戏设定二.我方飞机三.敌方飞机四.发射子弹五.发放补给包六.主模块 经典飞机大战 源代码以及素材资料(图片,音频)可从下面的github中下载: 飞机大战源代码以及素材资料github项目地址链接 ————————————————————————————————————————————————————————— 不知道大家有没有打过飞机,喜不喜欢打飞机。当我第一次接触这个东西的时候,我的内心是被震撼到的。第一次接触打飞机的时候作者本人是身心愉悦的,因为周边的朋友都在打飞机, 每

最近面试Java后端开发的感受:如果就以平时项目经验来面试,通过估计很难,不信你来看看

在上周,我密集面试了若干位Java后端的候选人,工作经验在3到5年间。我的标准其实不复杂:第一能干活,第二Java基础要好,第三最好熟悉些分布式框架,我相信其它公司招初级开发时,应该也照着这个标准来面的。 我也知道,不少候选人能力其实不差,但面试时没准备或不会说,这样的人可能在进团队干活后确实能达到期望,但可能就无法通过面试,但面试官总是只根据面试情况来判断。 但现实情况是,大多数人可能面试前没准备,或准备方法不得当。要知道,我们平时干活更偏重于业务,不可能大量接触到算法,数据结构,底层代码这类面试必问

三个项目玩转深度学习(附1G源码)

从事大数据与人工智能开发与实践约十年,钱老师亲自见证了大数据行业的发展与人工智能的从冷到热。事实证明,计算机技术的发展,算力突破,海量数据,机器人技术等,开启了第四次工业革命的序章。深度学习图像分类一直是人工智能的经典任务,是智慧零售、安防、无人驾驶等机器视觉应用领域的核心技术之一,掌握图像分类技术是机器视觉学习的重中之重。针对现有线上学习的特点与实际需求,我们开发了人工智能案例实战系列课程。打造:以项目案例实践为驱动的课程学习方式,覆盖了智能零售,智慧交通等常见领域,通过基础学习、项目案例实践、社群答疑,三维立体的方式,打造最好的学习效果。

微信小程序开发实战之番茄时钟开发

微信小程序番茄时钟视频教程,本课程将带着各位学员开发一个小程序初级实战类项目,针对只看过官方文档而又无从下手的开发者来说,可以作为一个较好的练手项目,对于有小程序开发经验的开发者而言,可以更好加深对小程序各类组件和API 的理解,为更深层次高难度的项目做铺垫。

相关热词 c#分级显示数据 c# 不区分大小写替换 c#中调用就java c#正则表达式 验证小数 c# vscode 配置 c#三维数组能存多少数据 c# 新建excel c#多个文本框 c#怎么创建tcp通讯 c# mvc 电子病例
立即提问