springboot2 PageHelper无法分页

核心代码
Service层
public ServerResponse getProductList(int pageNum, int pageSize) {
PageHelper.startPage(pageNum, pageSize);
List productList = productRepository.findAll();

    List<ProductListVo> productListVoList = new ArrayList<>();
    for (Product productItem : productList) {
        ProductListVo productListVo = assembleProductListVo(productItem);
        productListVoList.add(productListVo);
    }
    PageInfo pageResult = new PageInfo(productListVoList);
    return ServerResponse.createBySuccess(pageResult);
}

private ProductListVo assembleProductListVo(Product product) {
    ProductListVo productListVo = new ProductListVo();
    productListVo.setId(product.getId());
    productListVo.setName(product.getName());
    productListVo.setCategoryId(product.getCategoryId());
    productListVo.setImageHost( "http://img.sunxiaochuan.xyz/");
    productListVo.setMainImage(product.getMainImage());
    productListVo.setPrice(product.getPrice());
    productListVo.setSubtitle(product.getSubtitle());
    productListVo.setStatus(product.getStatus());
    return productListVo;
}

Controller层
@RequestMapping(value = "list", method = RequestMethod.POST)
@ResponseBody
public ServerResponse getList(HttpSession session, @RequestParam(value = "pageNum", defaultValue = "1") int pageNum, @RequestParam(value = "pageSize", defaultValue = "10") int pageSize) {

    //填充业务
    return productService.getProductList(pageNum, pageSize);

}

    yml配置
    pagehelper:

helper-dialect: mysql
reasonable: true
support-methods-arguments: true
params: count=countSql

pom引用
  <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper</artifactId>
        <version>5.1.8</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>1.3.2</version>
    </dependency>
    <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper-spring-boot-autoconfigure</artifactId>
        <version>1.2.10</version>
    </dependency>
    <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper-spring-boot-starter</artifactId>
        <version>1.2.10</version>
    </dependency>

1个回答

你看下我开源的,里面有分页:https://gitee.com/faceghost/Elastic-Bg

z6189949
z6189949 我的所有数据都在一夜
大约一年之前 回复
z6189949
z6189949 我没有找到具体的分页代码,麻烦对比一下看看我哪里错了导致无法分页
大约一年之前 回复
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ssm pageheleper 模糊查询语句出错

@RequestMapping("mohu") public String mohuchaxun(@RequestParam(value="pn",defaultValue="1")Integer pn,Model model,books bk){ //从第一条开始 每页查询五条数据 PageHelper.startPage(pn, 3); List<books> users = userService.mohu(bk); System.out.println("测试集合有没有获取到数据"+bk.getBookuser()); System.out.println("大小"+users.size()); //将用户信息放入PageInfo对象里 PageInfo page1 = new PageInfo(users,7); model.addAttribute("pageInfo2", page1); return "mohu"; } -----------------------------------------------------------------controller <select id="mohu" parameterType="books" resultType="books"> select * from books where bookuser LIKE '%' #{bookuser} '%' </select> -------------------------------------------------------------------dao.xml <c:forEach items="${pageInfo2.list }" var="user"> <tr> <td>${user.bid}</td> <td>${user.bookuser }</td> <td>${user.booktype }</td> <td><img src="${user.bookimg}" width="200" height="100" ></td> <!-- <td><img src="${user.bookimg}" width="200" height="300" ></td> --> <!-- <td><a class="edit">编辑</a> <a class="delete">删除</a></td> --> </tr> </c:forEach> </table> </div> </div> <hr style="height:1px;border:none;border-top:1px solid #ccc;" /> <!-- 分页导航栏 --> <!-- 分页信息 --> <div class="row"> <!-- 分页文字信息,其中分页信息都封装在pageInfo中 --> <div class="col-md-6"> 当前第:${pageInfo2.pageNum}页,总共:${pageInfo2.pages}页,总共:${pageInfo2.total}条记录 </div> <!-- 分页条 --> <div class="col-md-6"> <nav aria-label="Page navigation"> <ul class="hvtulli" style="list-style-type:none"> <li><a href="${path}/user/mohu?pn=1">首页</a></li> <c:if test="${pageInfo2.hasPreviousPage }"> <li> <a href="${path}/user/mohu?pn=${pageInfo2.pageNum-1}" aria-label="Previous"> <span aria-hidden="true">上一页</span> </a> </li> </c:if> <c:forEach items="${pageInfo2.navigatepageNums }" var="page_Num"> <c:if test="${page_Num == pageInfo2.pageNum }"> <li class="active"><a href="#">${ page_Num}</a></li> </c:if> <c:if test="${page_Num != pageInfo2.pageNum }"> <li><a href="${path}/user/mohu?pn=${ page_Num}">${ page_Num}</a></li> </c:if> </c:forEach> <c:if test="${pageInfo2.hasNextPage }"><a href="${path}/user/mohu?pn=${pageInfo2.pageNum+1}" aria-label="Next">下一页 </a> </c:if> <a href="${path}/user/mohu?pn=${pageInfo2.pages}">末页</a> -----------------------------------------------------------jsp 普通的查询这样都可以做到。 但是这个模糊查询,点击首页或者末页就会报错, Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'null '%') tmp_count' at line 2 ### The error may exist in com/ssm/dao/Userdao.xml ### The error may involve com.ssm.dao.Userdao.mohu-Inline ### The error occurred while setting parameters ### SQL: select count(0) from (select * from books where bookuser LIKE '%' ? '%') tmp_count 知道是sql的错误, 请大神帮我看看怎么办。 我是初学者。

Springboot 使用aop ,切controll层可以,切service层不行,请问是为什么

Springboot 使用aop ,切controll层可以,切service层不行,找了好久不知道是为啥。 pom.xml: ``` <dependencies> <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> <!--mybatis --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!--end mybatis--> <!--通用mapper--> <dependency> <groupId>tk.mybatis</groupId> <artifactId>mapper-spring-boot-starter</artifactId> <version>1.1.5</version> </dependency> <!--&lt;!&ndash;pagehelper 分页插件&ndash;&gt;--> <!--<dependency>--> <!--<groupId>com.github.pagehelper</groupId>--> <!--<artifactId>pagehelper-spring-boot-starter</artifactId>--> <!--<version>1.2.3</version>--> <!--</dependency>--> <!--增加alibaba的连接池--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.19</version> </dependency> <!--end 增加连接池--> <!--热部署--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> <!--end 热部署--> <!--默认日志Logback--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.4</version> </dependency> <!--shiro依赖包--> <dependency> <groupId>org.apache.shiro</groupId> <artifactId>shiro-spring</artifactId> <version>1.4.0</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.31</version> </dependency> <!--&lt;!&ndash;redis 的spring支持&ndash;&gt;--> <!--<dependency>--> <!--<groupId>org.springframework.boot</groupId>--> <!--<artifactId>spring-boot-starter-data-redis</artifactId>--> <!--</dependency>--> <!-- 整合redis --> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> <version>2.0.1.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-redis --> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> <version>2.0.6.RELEASE</version> </dependency> <!-- redis客户端操作 --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> <!--aop--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <!--<dependency>--> <!--<groupId>org.aspectj</groupId>--> <!--<artifactId>aspectjrt</artifactId>--> <!--<version>1.7.4</version>--> <!--</dependency>--> </dependencies> ```

SpringBoot程序运行异常,ImageLoader bean冲突

Spring Boot+MyBatis程序 源程序是在另一个服务器上可以运行的,但是转到我的电脑上运行时遇到了bean冲突问题,com.sun.javafx.tk.ImageLoader与com.sun.javafx.iio.ImageLoader冲突,似乎是导包出现问题了?还是Java环境变了什么的 给出ConflictingBeanDefinitionException异常信息: org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name 'imageLoader' for bean class [com.sun.javafx.tk.ImageLoader] conflicts with existing, non-compatible bean definition of same name and class [com.sun.javafx.iio.ImageLoader] at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.checkCandidate(ClassPathBeanDefinitionScanner.java:348) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.mybatis.spring.mapper.ClassPathMapperScanner.checkCandidate(ClassPathMapperScanner.java:237) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:286) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.mybatis.spring.mapper.ClassPathMapperScanner.doScan(ClassPathMapperScanner.java:164) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.mybatis.spring.annotation.MapperScannerRegistrar.registerBeanDefinitions(MapperScannerRegistrar.java:105) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.lambda$loadBeanDefinitionsFromRegistrars$1(ConfigurationClassBeanDefinitionReader.java:357) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at java.util.LinkedHashMap.forEach(LinkedHashMap.java:684) ~[na:1.8.0_161] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars(ConfigurationClassBeanDefinitionReader.java:356) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:144) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:328) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE] at com.stamford.b2b.App.main(App.java:22) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.0.1.RELEASE.jar:2.0.1.RELEASE] 我的pom.xml文件如下 <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.kfit</groupId> <artifactId>spring-boot-mybatis</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>spring-boot-mybatis</name> <url>http://maven.apache.org</url> <!-- spring boot parent节点,引入这个之后,在下面和spring boot相关的就不需要引入版本了; --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.1.RELEASE</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <!-- 指定一下jdk的版本 ,这里我们使用jdk 1.8 ,默认是1.6 --> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>dom4j</groupId> <artifactId>dom4j</artifactId> <version>1.6.1</version><!--$NO-MVN-MAN-VER$--> </dependency> <!-- web支持: 1、web mvc; 2、restful; 3、jackjson支持; 4、aop ........ --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </exclusion> </exclusions> </dependency> <!-- mysql 数据库驱动. --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId>com.microsoft.sqlserver</groupId> <artifactId>sqljdbc4</artifactId> <version>4.0</version> </dependency> <!-- spring-boot mybatis依赖: 请不要使用1.0.0版本,因为还不支持拦截器插件, 1.1.1 是博主写帖子时候的版本,大家使用最新版本即可 --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> </dependency> <!-- MyBatis提供了拦截器接口,我们可以实现自己的拦截器, 将其作为一个plugin装入到SqlSessionFactory中。 Github上有位开发者写了一个分页插件,我觉得使用起来还可以,挺方便的。 Github项目地址: https://github.com/pagehelper/Mybatis-PageHelper --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> <scope>true</scope> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <!-- <exclusion>                           <groupId>org.slf4j</groupId>                           <artifactId>slf4j-api</artifactId>                       </exclusion>   --> <configuration> <fork>true</fork> </configuration> </plugin> <!-- <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.7</source> <target>1.7</target> <encoding>UTF-8</encoding> <compilerArguments> <extdirs>${project.basedir}/lib</extdirs> </compilerArguments> </configuration> </plugin> --> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> <!-- <resources> <resource> <directory>lib</directory> <targetPath>BOOT-INF/lib/</targetPath> <includes> <include>**/*.jar</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <targetPath>BOOT-INF/classes/</targetPath> </resource> </resources> --> </build> <dependencyManagement> <dependencies> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>4.1.0</version> </dependency> </dependencies> </dependencyManagement> </project> ``` ``` 求大神指教 是怎么个问题 该怎么解决呢 跪求 ``` ``` run as Spring Boot App报错 但是run as java application 没报错

SpringBoot与mybatis结合报错:

项目无缘无故就报了一个这样的错:org.springframework.expression.spel.SpelEvaluationException: EL1007E: Property or field 'username' cannot be found on null

springboot 整合mybatis 报错提示包扫描不进去

![图片说明](https://img-ask.csdn.net/upload/201908/14/1565777159_224084.png) ``` package com.liupeng; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import tk.mybatis.spring.annotation.MapperScan; @SpringBootApplication() @MapperScan(basePackages = "com.liupeng.mapper") public class Application { public static void main(String[] args) { SpringApplication.run(Application.class,args); } } ``` ``` package com.liupeng.service; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.liupeng.mapper.UserMapper; import com.liupeng.pojo.User; @Service(value = "Userservice") public class UserServiceImpl implements Userservice { @Autowired private UserMapper userMapper; @Override public User getNamePassword(User user) { // TODO Auto-generated method stub return userMapper.selectgetNamePassword(user); } @Override public void saveUser(User user) { // TODO Auto-generated method stub } } ``` mapper.xml ``` <?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="com.liupeng.mapper.UserMapper"> ``` ``` #------------------配置虚拟文件路径--start------------------------------ spring.http.multipart.location=E:\Java\java代码\Chaoyang\src\main\resources #-----------------------------------------数据库--start---------------------- spring.datasource.driver-class-name=com.mysql.cj.jdbc.Drive spring.datasource.url=jdbc:mysql://localhost:3306/ssm_mybatis?serverTimezone=GMT spring.datasource.username=root spring.datasource.password=liupeng.123 spring.datasource.druid.stat-view-servlet.allow=true #获取连接等待超时时间 spring.datasource.dbcp2.max-wait-millis=60000 #mybatis配置 mybatis.type-aliases-package=com.liupeng.pojo mybatis.mapper-locations=classpath:mapper/*.xml #通用Mapper配置 #mapper.mappers=com.liupeng.utils.MyMapper #mapper.not-empty=false #mapper.identity=MYSQL #分页插件配置 pagehelper.helperDialect=mysq1 pagehelper.reasonable=true pagehelper.supportMethodsArguments=true pagehelper.params=count=countSql #文件上传配置 spring.http.multipart.maxFileSize=100Mb spring.http.multipart.maxRequestSize=1000Mb #配置api端口号 server.port=8080 #tomcat的URI编码 server.tomcat.uri-encoding=UTF-8 ``` ``` ERROR [main] - Application startup failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registLoginController': Unsatisfied dependency expressed through field 'userservice'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'Userservice': Unsatisfied dependency expressed through field 'userMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\Java\java代码\Chaoyang\target\classes\com\liupeng\mapper\UserMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:364) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1268) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:756) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:123) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:666) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:353) at org.springframework.boot.SpringApplication.run(SpringApplication.java:300) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1082) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1071) at com.liupeng.Application.main(Application.java:13) Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'Userservice': Unsatisfied dependency expressed through field 'userMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\Java\java代码\Chaoyang\target\classes\com\liupeng\mapper\UserMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:364) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1268) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:211) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1131) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1059) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ... 19 more Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\Java\java代码\Chaoyang\target\classes\com\liupeng\mapper\UserMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1361) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1253) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:211) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1131) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1059) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ... 32 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1177) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1072) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:211) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1131) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1059) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1346) ... 43 more Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ... 55 more Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\Java\java代码\Chaoyang\target\classes\mapper\UserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:523) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380) at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:547) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration.sqlSessionFactory(MapperAutoConfiguration.java:155) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration$$EnhancerBySpringCGLIB$$90d064bb.CGLIB$sqlSessionFactory$1(<generated>) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration$$EnhancerBySpringCGLIB$$90d064bb$$FastClassBySpringCGLIB$$b0514ca6.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) at tk.mybatis.mapper.autoconfigure.MapperAutoConfiguration$$EnhancerBySpringCGLIB$$90d064bb.sqlSessionFactory(<generated>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ... 56 more Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120) at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521) ... 69 more Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.liupeng.mapper.UserMapper.BaseResultMap at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:872) at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:844) at org.apache.ibatis.session.Configuration.addResultMap(Configuration.java:626) at org.apache.ibatis.builder.MapperBuilderAssistant.addResultMap(MapperBuilderAssistant.java:214) at org.apache.ibatis.builder.ResultMapResolver.resolve(ResultMapResolver.java:47) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:285) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244) at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116) ... 71 more ```

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