求助:ssm的maven项目tomcat插件启动成功,但是无法访问的问题! 5C

问题描述:

springmvc+mybatis项目,tomcat插件成功启动后,访问报404的错误。

个人排查:
1.将其独立部署到tomcat服务器而不用tomcat插件可以成功启动并访问。
2.tomcat插件启动成功后,target下的classes目录下面没有配置文件,但是有class文件。buildpath中已经配置输出文件夹为target/classes,仍然无效。

tomcat插件配置:

        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                   <update>true</update> <!-- 热部署 -->
                    <charset>utf-8</charset> <!-- 设置字符集 -->
                    <uriEncoding>UTF-8</uriEncoding><!-- 设置uri编码 -->
                    <port>8080</port> <!-- 设置端口 -->
                    <path>/</path><!-- 设置默认访问应用的路径 -->
                </configuration>
            </plugin>
        </plugins>

前端控制器配置:

    <!-- 前端控制器 -->
    <!-- The front controller of this Spring Web application, responsible for 
        handling all application requests -->
    <servlet>
        <servlet-name>springDispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:springmvc/springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- Map all requests to the DispatcherServlet for handling -->
    <servlet-mapping>
        <servlet-name>springDispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

controller:

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

    @RequestMapping("/")
    public String hello() {
        return "index";
    }

    @RequestMapping("/user")
    @ResponseBody
    public List<User> getUserList() {
        List<User> list = userService.getUserList();
        return list;
    }
}

访问url:localhost:8080,正常应该跳转到index.jsp界面,实际输出:No mapping found for HTTP request with URI [/] in DispatcherServlet with name 'springDispatcherServlet'

求助!!!

11个回答

pom.xml里面加上这段试试

  <build>
        <finalName>common-info</finalName>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
        </resources>
    </build>
Miaoshuowen
Miaoshuowen 所以这个配置是什么意思呀
3 个月之前 回复
qq_21150865
qq_21150865 完美!!!
接近 2 年之前 回复

启动后,target目录下的classes下没有配置文件,只有.class文件。

是不是项目没有安装到maven的本地仓库?

qq_40448623
小獒爱洗澡 回复qq_21150865: 在你ide的console中有报error么?
接近 2 年之前 回复
qq_40448623
小獒爱洗澡 回复qq_21150865: 你试一下clean,然后mvn install重新编译一下,如果要用/就访问到你的工程而不加工程名,好像是需要你将war包放在tomcat,webapps下面的root文件中
接近 2 年之前 回复
qq_21150865
qq_21150865 不是,就只是一个很简单的war工程。
接近 2 年之前 回复

如果你出现tomcat可以独立启动,也可以访问,但是部署在eclipse无法访问的话:
双击tomcat,Server Locations选择第一个,如果是灰色的话右击删除tomcat,再重新添加tomcat就可以选择了

qq_41722160
qq_41722160 赞一个
11 个月之前 回复

找到原因了,把pom文件中的

<resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
        ```
        删掉,url便可以映射到controller方法了,但是又出现了一个新的问题,调用业务层和dao层报错`org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.wisdom.dao.UserMapper.selectByExample`,求问广大猿友如何解决?!
qq_39456689
坤少的IT之路 我也出现tomcat插件不管用的状况,怎么解决的?兄弟,郁闷很长时间了。本地的tomcat太慢了
一年多之前 回复
qq_21150865
qq_21150865 解决了!
接近 2 年之前 回复

端口号后面加上项目名称试试

第一即使让dispatcherServlet的拦截加上后缀如:*.do;

这样以jsp后缀的就不会别拦截了。

第二个方法是在spring-servlet.xml中加入:

mvc:default-servlet-handler/

qq_21150865
qq_21150865 不管用撒。。问题好像是Controller好像在tomcat启动的时候没被加载,导致无论什么url都无法匹配到。求助!
接近 2 年之前 回复

Tomcat端口改成8090

qq_21150865
qq_21150865 不管用撒。
接近 2 年之前 回复

有报错吗?把运行结果贴一下

qq_21150865
qq_21150865 好的
接近 2 年之前 回复

还有是否配置了扫描 controller

qq_21150865
qq_21150865 回复qq_21150865: 将项目独立部署到tomcat服务器中没有错误,怀疑是tomcat插件哪里配置错误的原因。
接近 2 年之前 回复
qq_21150865
qq_21150865 没有报错,启动成功后,访问url:localhost:8080,页面显示404,控制台输出警告: No mapping found for HTTP request with URI [/] in DispatcherServlet with name 'springDispatcherServlet',没有报错。
接近 2 年之前 回复
qq_21150865
qq_21150865 配了。
接近 2 年之前 回复
共11条数据 1 尾页
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
Maven项目SSM整合后,tomcat可启动,但localhost:8080/无法访问
[INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] Reactor Build Order: [INFO] [INFO] taotao-manager [INFO] taotao-manager-pojo [INFO] taotao-manager-dao [INFO] taotao-manager-service [INFO] taotao-manager-web [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building taotao-manager 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ taotao-manager --- [INFO] [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ taotao-manager >>> [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ taotao-manager <<< [INFO] [INFO] [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ taotao-manager --- [INFO] Skipping non-war project [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building taotao-manager-pojo 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ taotao-manager-pojo --- [INFO] Deleting E:\jdkandjre\workspace\taotao-manager\taotao-manager-pojo\target [INFO] [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ taotao-manager-pojo >>> [INFO] [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ taotao-manager-pojo --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ taotao-manager-pojo --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 22 source files to E:\jdkandjre\workspace\taotao-manager\taotao-manager-pojo\target\classes [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ taotao-manager-pojo <<< [INFO] [INFO] [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ taotao-manager-pojo --- [INFO] Skipping non-war project [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building taotao-manager-dao 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ taotao-manager-dao --- [INFO] Deleting E:\jdkandjre\workspace\taotao-manager\taotao-manager-dao\target [INFO] [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ taotao-manager-dao >>> [INFO] [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ taotao-manager-dao --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 11 resources [INFO] [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ taotao-manager-dao --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 11 source files to E:\jdkandjre\workspace\taotao-manager\taotao-manager-dao\target\classes [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ taotao-manager-dao <<< [INFO] [INFO] [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ taotao-manager-dao --- [INFO] Skipping non-war project [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building taotao-manager-service 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ taotao-manager-service --- [INFO] Deleting E:\jdkandjre\workspace\taotao-manager\taotao-manager-service\target [INFO] [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ taotao-manager-service >>> [INFO] [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ taotao-manager-service --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ taotao-manager-service --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 2 source files to E:\jdkandjre\workspace\taotao-manager\taotao-manager-service\target\classes [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ taotao-manager-service <<< [INFO] [INFO] [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ taotao-manager-service --- [INFO] Skipping non-war project [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building taotao-manager-web 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ taotao-manager-web --- [INFO] Deleting E:\jdkandjre\workspace\taotao-manager\taotao-manager-web\target [INFO] [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ taotao-manager-web >>> [INFO] [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ taotao-manager-web --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 6 resources [INFO] [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ taotao-manager-web --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 1 source file to E:\jdkandjre\workspace\taotao-manager\taotao-manager-web\target\classes [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ taotao-manager-web <<< [INFO] [INFO] [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ taotao-manager-web --- [INFO] Running war on http://localhost:8080/ [INFO] Creating Tomcat server configuration at E:\jdkandjre\workspace\taotao-manager\taotao-manager-web\target\tomcat [INFO] create webapp with contextPath: 十二月 08, 2017 8:56:30 上午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-bio-8080"] 十二月 08, 2017 8:56:30 上午 org.apache.catalina.core.StandardService startInternal 信息: Starting service Tomcat 十二月 08, 2017 8:56:30 上午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/7.0.47 十二月 08, 2017 8:56:32 上午 org.apache.catalina.core.ApplicationContext log 信息: No Spring WebApplicationInitializer types detected on classpath 十二月 08, 2017 8:56:32 上午 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring root WebApplicationContext log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. 黑马的淘淘商城项目,这以上是控制台消息,浏览器http://localhost:8080/一直画圈,无响应,请问这是怎么回事啊
maven聚合ssm框架启动Tomcat不报错
ssm 用maven做的聚合项目为啥编译不了controller,进入不了jsp(除了index)
SSM,Maven项目的tomcat7.0启动不了
严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/jpkc]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1233) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:819) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1694) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1684) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/jpkc]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) ... 6 more Caused by: java.lang.NoClassDefFoundError: org/springframework/core/io/Resource at java.lang.Class.getDeclaredFields0(Native Method) at java.lang.Class.privateGetDeclaredFields(Unknown Source) at java.lang.Class.getDeclaredFields(Unknown Source) at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106) at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:270) at org.apache.catalina.startup.WebAnnotationSet.loadApplicationListenerAnnotations(WebAnnotationSet.java:89) at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:63) at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:417) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:891) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:388) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5519) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 6 more Caused by: java.lang.ClassNotFoundException: org.springframework.core.io.Resource at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735) ... 20 more 六月 29, 2018 2:22:48 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1233) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:444) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:758) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.startup.Catalina.start(Catalina.java:694) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:428) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1694) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1684) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1241) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:819) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 6 more 六月 29, 2018 2:22:48 下午 org.apache.catalina.startup.Catalina start 严重: The required Server component failed to start so Tomcat is unable to start. org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.startup.Catalina.start(Catalina.java:694) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:428) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:758) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 7 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:444) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 9 more Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1241) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:300) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) ... 11 more
SSM+maven项目,请求url的时候404,项目已经启动成功,能正常访问index.jsp
废话不多说,直接上图! 首先是项目结构 ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825401_76162.png) 然后是application.xml配置文件 springmvc.xml ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825487_56642.png) service的 ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825532_517645.png) trans的 ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825584_662840.png) ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825625_842187.png) controller方法 ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503826394_409127.png) 控制台没有更多的错误提示,访问时候提示404 ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825779_382463.png) 各位大佬,我百度了许久也没找到合适的解决办法, 解决思路一开始是想是不是controller没有被扫描到,但是仔细检查以后也没发现扫描问题., 然后想到是不是pom.xml配置没有引入控制事物相关的包的问题 所以尝试了引入下图的包,但是问题也没有得到解决,是版本问题吗? ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825999_918043.png) 这个是原本就有的,没有删除也没有注释. ![图片说明](https://img-ask.csdn.net/upload/201708/27/1503825985_789377.png) 题主使用 myEclipse2017,maven3.5.0,jdk1.8,jre1.8,win7
ssm不重启Tomcat使修改后的spring.xml配置生效?
![图片说明](https://img-ask.csdn.net/upload/201912/18/1576655811_472298.png) 在开发ssm项目时,在发布之后会动态修改spring的配置文件,但是每次修改之后都需要重启Tomcat服务才可以生效,有没有办法不重启Tomcat使配置生效?(注:没有使用maven;修改Tomcat的reloadable属性测试会出现错误不可以)
菜鸟求助:ssm框架启动报错
org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.NullPointerException <?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> <!-- 定义sql片段 通过if判断满足条件进行sql拼接 商品查询条件通过ItemsQueryVo包装对象中的itemsCoutom属性传递 --> <sql id="query_itemts_where"> <if test="itemtsCustom != null "> <if test="itemtsCustom.id != null and itemtsCustom.id != ''"> id = #{itemtsCustom.id} </if> </if> </sql> <!--建议传入包装对象 返回对象使用扩展对象 include 引入sql片段 --> <select id="findByIdItemts" parameterType="com.sz.po.ItemtsQueryVo" resultType="com.sz.po.ItemtsCustom"> select * from my_itemts <where> <include refid="query_itemts_where"></include> </where> </select> </mapper> package com.sz.mapper; import com.sz.po.ItemtsCustom; import com.sz.po.ItemtsQueryVo; public interface ItemtsMapper { public ItemtsCustom findByIdItemts(ItemtsQueryVo itemtsQueryVo)throws Exception; }
请问:SSM框架中,@Produces与@RequestMapping中的produces属性的作用是否一样?有何区别?
请问:SSM框架中,@Produces与@RequestMapping中的produces属性的作用是否一样?有何区别?
ssm项目部署tomcat问题
自己建立了spring+springmvc+mybatis整合的小项目,用的是maven。目录如下图![项目结构](https://img-ask.csdn.net/upload/201711/09/1510208296_486345.png) maven--update project 操作后就能正常启动tomcat,但是会报java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener,查了百度,说是tomcat下的项目没有lib,然后照着操作,properties-->add maven dependencies ,操作完查看tomcat下的项目web—Inf下有lib,但是启动tomcat又报错。报错如图![报错图片](https://img-ask.csdn.net/upload/201711/09/1510208538_77234.png)。然后我试着又maven ---> update project ,启动没问题,但是tomcat下的项目目录又没了lib包。 至今找不到问题,求解?另外为什么能tomcat启动了,然后我locatlhost:8080/TestProject/index.jsp 报了404 。无从下手,小白求指导
SSM+Maven项目正常启动,能正常访问index但访问url的时候报404,后台不报错
首先是项目结构 ![图片说明](https://img-ask.csdn.net/upload/201903/18/1552878288_642834.jpg) ![图片说明](https://img-ask.csdn.net/upload/201903/17/1552818529_184734.jpg) 下面是Springmvc ![图片说明](https://img-ask.csdn.net/upload/201903/17/1552818603_787287.jpg) 接下来是service ![图片说明](https://img-ask.csdn.net/upload/201903/17/1552818671_283353.jpg) 最后是web.xml ![图片说明](https://img-ask.csdn.net/upload/201903/17/1552818808_29754.jpg)![图片说明](https://img-ask.csdn.net/upload/201903/17/1552818823_7279.jpg) 访问路径 ![图片说明](https://img-ask.csdn.net/upload/201903/18/1552878457_713808.jpg) 版本 :eclipse Nose jdk1.8 maven3.3.9 win10
求助:SSM用c3p0连接mysql时Could not get JDBC Connection
【控制台log】 严重: Servlet.service() for servlet [spring_mvc] in context with path [/P_AI] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database! ### The error may exist in config/mybatis/mapper/CommAdminMapper.xml ### The error may involve cn.java.demo.mapper.CommAdminMapper.selectAdminByInfo ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!] with root cause com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source. at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1002) at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:293) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:348) at com.mchange.v2.c3p0.PoolBackedDataSource.getConnection(PoolBackedDataSource.java:120) at com.mchange.v2.c3p0.ComboPooledDataSource.getConnection(ComboPooledDataSource.java:601) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336) at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77) 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.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) at com.sun.proxy.$Proxy13.selectOne(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) at com.sun.proxy.$Proxy14.selectAdminByInfo(Unknown Source) at cn.java.demo.dao.impl.CommAdminDaoImpl.selectAdminByInfo(CommAdminDaoImpl.java:21) at cn.java.demo.logic.impl.CommAdminLogicImpl.selectAdminByInfo(CommAdminLogicImpl.java:27) 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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) at com.sun.proxy.$Proxy18.selectAdminByInfo(Unknown Source) at cn.java.demo.controller.CommAdminController.admin(CommAdminController.java:33) 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.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:175) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:446) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:434) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)
Maven 运行SSM项目错误
信息: Starting service Tomcat 三月 07, 2018 8:49:02 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/7.0.47 三月 07, 2018 8:49:03 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) ... 6 more Caused by: java.lang.ClassCastException: org.springframework.web.SpringServletContainerInitializer cannot be cast to javax.servlet.ServletContainerInitializer at org.apache.catalina.startup.ContextConfig.getServletContainerInitializer(ContextConfig.java:1670) at org.apache.catalina.startup.ContextConfig.getServletContainerInitializers(ContextConfig.java:1652) at org.apache.catalina.startup.ContextConfig.processServletContainerInitializers(ContextConfig.java:1562) at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1270) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:376) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more 三月 07, 2018 8:49:03 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1238) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:592) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286) at org.apache.maven.cli.MavenCli.main(MavenCli.java:197) 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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] newstyles-manager .................................. SUCCESS [ 2.194 s] [INFO] newstyles-manager-pojo ............................. SUCCESS [ 1.448 s] [INFO] newstyles-manager-mapper ........................... SUCCESS [ 0.359 s] [INFO] newstyles-manager-service .......................... SUCCESS [ 0.416 s] [INFO] newstyles-manager-web .............................. FAILURE [ 1.857 s] [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 6.884 s [INFO] Finished at: 2018-03-07T20:49:03+08:00 [INFO] Final Memory: 15M/158M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run (default-cli) on project newstyles-manager-web: Could not start Tomcat: Failed to start component [StandardServer[-1]]: Failed to start component [StandardService[Tomcat]]: Failed to start component [StandardEngine[Tomcat]]: A child container failed during start -> [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 [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :newstyles-manager-web
maven创建的SSM启动成功之后预览JSP页面报错
java.lang.LinkageError: loader constraint violation: loader (instance of org/apache/jasperrvlet/JasperLoader) previously initiated loading for a different type with name "javaxrvlettp/HttpServletRequest" at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2531) at java.lang.Class.getDeclaredMethods(Class.java:1855) at org.apache.catalina.util.DefaultAnnotationProcessor.processAnnotations(DefaultAnnotationProcessor.java:226) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:148) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:744)
在idea中ssm项目与Maven
在ssm项目中能不能加Maven 创建Maven项目过程中出现错误jdk使用的1.7,Maven使用的3.6 ![图片说明](https://img-ask.csdn.net/upload/201903/22/1553231624_823859.png) ![图片说明](https://img-ask.csdn.net/upload/201903/22/1553231637_749259.png)
IDEA写SSM启动Tomcat时报错
![图片说明](https://img-ask.csdn.net/upload/201711/29/1511918704_660779.png) 使用maven创建项目,启动Tomcat时候出错
使用Maven搭建SSM项目报错求教
使用Maven搭建SSM项目报错如下:LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date ,是什么意思?该如何解决?
IDEA17启动SSM(SpringMVC+Spring+Mybatis)项目Tomcat启动报错
之前在运行一个网上下载的SSM(SpringMVC+Spring+Mybatis)论坛DEMO的时候然后就报了下面的错,搜索了很久也找不到原因,今天发现我以前一个整合好的SSM工程也打不开了,还是报同样的错误,我在想是不是Tomcat的配置被改变了还是啥,我重装Tomcat有用吗,或者说有其他的什么解决办法吗,求各位大神 七月 11, 2017 4:39:08 下午 org.apache.catalina.core.ContainerBase addChildInternal 严重: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]] Caused by: org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 18 七月 11, 2017 4:39:08 下午 org.apache.tomcat.util.modeler.BaseModelMBean invoke 严重: Exception invoking method manageApp java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]] [2017-07-11 04:39:08,888] Artifact SSMtest:war exploded: Error during artifact deployment. See server log for details. 七月 11, 2017 4:39:08 下午 org.apache.tomcat.util.modeler.BaseModelMBean invoke 严重: Exception invoking method createStandardContext javax.management.RuntimeOperationsException: Exception invoking method manageApp Caused by: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
ssm项目Tomcat启动报错
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'LoginDao': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'LoginMapper' is defined at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:308) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5017) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5531) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1574) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1564) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'LoginMapper' is defined at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:641) at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1159) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:282) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:446) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:420) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:545) at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:155) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:305) ... 22 more 这是dao实现类 ``` @Repository("LoginDao") public class LoginDaoImpl implements LoginDao { @Resource(name = "LoginMapper") private LoginMapper LoginMapper; public LoginMapper getLoginMapper() { return LoginMapper; } public void setLoginMapper(LoginMapper loginMapper) { LoginMapper = loginMapper; } ``` 这是service实现类 ``` @Service("LoginService") public class LoginServiceImpl implements LoginService { @Resource private LoginDao LoginDao; ``` 配置文件 <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- 引入我们的database.properties,hibernate.properties文件 --> <bean id="property" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:database.properties</value><!-- classpath代表类路径,如src下面的文件 --> </list> </property> </bean> <!-- 定义使用C3P0连接池的数据源 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <!-- 指定连接数据库的JDBC驱动 --> <property name="driverClass"> <value>${mysql.driver_class}</value> </property> <!-- 连接数据库所用的URL --> <property name="jdbcUrl"> <value>${mysql.connection.url}</value> </property> <!-- 连接数据库的用户名 --> <property name="user"> <value>${mysql.connection.username}</value> </property> <!-- 连接数据库的密码 --> <property name="password"> <value>${mysql.connection.password}</value> </property> <!-- 设置数据库连接池的最大连接数 --> <property name="maxPoolSize"> <value>30</value> </property> <!-- 设置数据库连接池的最小连接数 --> <property name="minPoolSize"> <value>2</value> </property> <!-- 设置数据库连接池的初始化连接数 --> <property name="initialPoolSize"> <value>2</value> </property> <!-- 设置数据库连接池的连接的最大空闲时间,单位为秒 --> <property name="maxIdleTime"> <value>10</value> </property> </bean> <!-- 启用自动扫描 --> <context:component-scan base-package="com.kachi.*"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" /><!-- 排除注解为controller的类型 --> </context:component-scan> <!-- 配置SqlSessionFactoryBean --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value="classpath:mybatis.xml"/> <!-- mapper和resultmap配置路径 --> <property name="mapperLocations"> <list> <value>classpath:entity/config/*.xml</value> </list> </property> </bean> <!-- 自动扫描mapper接口,注入sqlsessionfactory --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.kachi.mapper"/> </bean> <!-- 开启 mybatis事务--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/> </beans> springmvc配置文件 <?xml version="1.0" encoding="UTF-8"?> <!-- <mvc:annotation-driven/>该注解可以代替下面的两个注解 --> <!-- 启动Spring MVC的注解功能,完成请求和注解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" > <property name="messageConverters"> <list> <bean class = "org.springframework.http.converter.StringHttpMessageConverter"> <property name = "supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> </list> </property> </bean> <!-- 注解探测器 --> <context:component-scan base-package="com.kachi.controller"/> <!-- 静态资源访问 --> <mvc:resources location="/css/" mapping="/css/**"/> <mvc:resources location="/js/" mapping="/js/**"/> <mvc:resources location="/font/" mapping="/font/**"/> <mvc:resources location="/images/" mapping="/images/**"/> <!-- annotation默认的方法映射适配器 ,视图解析器,类似于action--> <bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" /><!-- 寻找类 --> <bean id="handlerAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /><!-- 根据url找方法 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans>
创建了一个maven工程想做ssm整合,启动时tomcat报错。
pom.xml代码如下: ``` <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.ssmtest</groupId> <artifactId>ssm_crud</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <!-- 引入项目jar包 --> <!-- SpringMvc和spring --> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- spring jdbc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- spring aspects --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.2</version> </dependency> <!-- mybatis整合Spring的适配包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <!-- 数据库连接池c3p0\驱动 --> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> </dependency> <!-- jstl servlet-api junit --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.2</version> </dependency> </dependencies> </project> 报错如下: 信息: Starting Servlet Engine: Apache Tomcat/8.5.37 一月 31, 2019 3:34:20 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm_crud]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1423) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1413) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm_crud]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@62d8dbb8] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4927) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5062) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.JarResourceSet@23bd3098] at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:112) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:724) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 9 more Caused by: java.lang.IllegalArgumentException: java.util.zip.ZipException: invalid LOC header (bad signature) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:142) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107) ... 12 more Caused by: java.util.zip.ZipException: invalid LOC header (bad signature) at java.util.zip.ZipFile.read(Native Method) at java.util.zip.ZipFile.access$1400(Unknown Source) at java.util.zip.ZipFile$ZipFileInputStream.read(Unknown Source) at java.util.zip.ZipFile$ZipFileInflaterInputStream.fill(Unknown Source) at java.util.zip.InflaterInputStream.read(Unknown Source) at sun.misc.IOUtils.readFully(Unknown Source) at java.util.jar.JarFile.getBytes(Unknown Source) at java.util.jar.JarFile.getManifestFromReference(Unknown Source) at java.util.jar.JarFile.getManifest(Unknown Source) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:140) ... 13 more 一月 31, 2019 3:34:20 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.startup.Catalina.start(Catalina.java:687) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:353) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:493) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1423) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1413) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:953) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm_crud]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ... 8 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm_crud]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@62d8dbb8] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4927) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5062) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.JarResourceSet@23bd3098] at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:112) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:724) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 9 more Caused by: java.lang.IllegalArgumentException: java.util.zip.ZipException: invalid LOC header (bad signature) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:142) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107) ... 12 more Caused by: java.util.zip.ZipException: invalid LOC header (bad signature) at java.util.zip.ZipFile.read(Native Method) at java.util.zip.ZipFile.access$1400(Unknown Source) at java.util.zip.ZipFile$ZipFileInputStream.read(Unknown Source) at java.util.zip.ZipFile$ZipFileInflaterInputStream.fill(Unknown Source) at java.util.zip.InflaterInputStream.read(Unknown Source) at sun.misc.IOUtils.readFully(Unknown Source) at java.util.jar.JarFile.getBytes(Unknown Source) at java.util.jar.JarFile.getManifestFromReference(Unknown Source) at java.util.jar.JarFile.getManifest(Unknown Source) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:140) ... 13 more 一月 31, 2019 3:34:20 下午 org.apache.catalina.startup.Catalina start 严重: The required Server component failed to start so Tomcat is unable to start. org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.startup.Catalina.start(Catalina.java:687) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:353) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:493) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 7 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 9 more Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:953) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 11 more Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ... 13 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1423) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1413) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:953) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm_crud]] at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942) ... 8 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ssm_crud]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@62d8dbb8] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4927) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5062) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.JarResourceSet@23bd3098] at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:112) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140) at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:724) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 9 more Caused by: java.lang.IllegalArgumentException: java.util.zip.ZipException: invalid LOC header (bad signature) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:142) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107) ... 12 more Caused by: java.util.zip.ZipException: invalid LOC header (bad signature) at java.util.zip.ZipFile.read(Native Method) at java.util.zip.ZipFile.access$1400(Unknown Source) at java.util.zip.ZipFile$ZipFileInputStream.read(Unknown Source) at java.util.zip.ZipFile$ZipFileInflaterInputStream.fill(Unknown Source) at java.util.zip.InflaterInputStream.read(Unknown Source) at sun.misc.IOUtils.readFully(Unknown Source) at java.util.jar.JarFile.getBytes(Unknown Source) at java.util.jar.JarFile.getManifestFromReference(Unknown Source) at java.util.jar.JarFile.getManifest(Unknown Source) at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.initInternal(AbstractSingleArchiveResourceSet.java:140) ... 13 more ```
maven项目编译总是报错DependencyResolutionException
## 项目代码不报错,照网上的搜索结果,分别用了两种方式编译该maven项目 ## 第一种:命令行,提示success ![图片说明](https://img-ask.csdn.net/upload/201606/27/1467030050_633970.png) ## 第二种:run as--》maven bulid--》输入compile ![图片说明](https://img-ask.csdn.net/upload/201606/27/1467030096_859152.jpg) ![图片说明](https://img-ask.csdn.net/upload/201606/27/1467030108_647485.jpg) ## 这个错的详细信息是: [ERROR] Failed to execute goal on project SSM01: Could not resolve dependencies for project com.cailikun:SSM01:war:0.0.1-SNAPSHOT: Failed to collect dependencies at mysql:mysql-connector-java:jar:6.0.3: Failed to read artifact descriptor for mysql:mysql-connector-java:jar:6.0.3: Could not transfer artifact mysql:mysql-connector-java:pom:6.0.3 from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org: Unknown host repo.maven.apache.org -> [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/DependencyResolutionException ## 这个异常信息里一直在提mysql-connector-java这个jar包是几个意思?我在pom.xml里换把这个jar包换个版本也不行
爬虫福利二 之 妹子图网MM批量下载
爬虫福利一:27报网MM批量下载    点击 看了本文,相信大家对爬虫一定会产生强烈的兴趣,激励自己去学习爬虫,在这里提前祝:大家学有所成! 目标网站:妹子图网 环境:Python3.x 相关第三方模块:requests、beautifulsoup4 Re:各位在测试时只需要将代码里的变量 path 指定为你当前系统要保存的路径,使用 python xxx.py 或IDE运行即可。
Java学习的正确打开方式
在博主认为,对于入门级学习java的最佳学习方法莫过于视频+博客+书籍+总结,前三者博主将淋漓尽致地挥毫于这篇博客文章中,至于总结在于个人,实际上越到后面你会发现学习的最好方式就是阅读参考官方文档其次就是国内的书籍,博客次之,这又是一个层次了,这里暂时不提后面再谈。博主将为各位入门java保驾护航,各位只管冲鸭!!!上天是公平的,只要不辜负时间,时间自然不会辜负你。 何谓学习?博主所理解的学习,它
大学四年自学走来,这些私藏的实用工具/学习网站我贡献出来了
大学四年,看课本是不可能一直看课本的了,对于学习,特别是自学,善于搜索网上的一些资源来辅助,还是非常有必要的,下面我就把这几年私藏的各种资源,网站贡献出来给你们。主要有:电子书搜索、实用工具、在线视频学习网站、非视频学习网站、软件下载、面试/求职必备网站。 注意:文中提到的所有资源,文末我都给你整理好了,你们只管拿去,如果觉得不错,转发、分享就是最大的支持了。 一、电子书搜索 对于大部分程序员...
linux系列之常用运维命令整理笔录
本博客记录工作中需要的linux运维命令,大学时候开始接触linux,会一些基本操作,可是都没有整理起来,加上是做开发,不做运维,有些命令忘记了,所以现在整理成博客,当然vi,文件操作等就不介绍了,慢慢积累一些其它拓展的命令,博客不定时更新 顺便拉下票,我在参加csdn博客之星竞选,欢迎投票支持,每个QQ或者微信每天都可以投5票,扫二维码即可,http://m234140.nofollow.ax.
比特币原理详解
一、什么是比特币 比特币是一种电子货币,是一种基于密码学的货币,在2008年11月1日由中本聪发表比特币白皮书,文中提出了一种去中心化的电子记账系统,我们平时的电子现金是银行来记账,因为银行的背后是国家信用。去中心化电子记账系统是参与者共同记账。比特币可以防止主权危机、信用风险。其好处不多做赘述,这一层面介绍的文章很多,本文主要从更深层的技术原理角度进行介绍。 二、问题引入 假设现有4个人...
程序员接私活怎样防止做完了不给钱?
首先跟大家说明一点,我们做 IT 类的外包开发,是非标品开发,所以很有可能在开发过程中会有这样那样的需求修改,而这种需求修改很容易造成扯皮,进而影响到费用支付,甚至出现做完了项目收不到钱的情况。 那么,怎么保证自己的薪酬安全呢? 我们在开工前,一定要做好一些证据方面的准备(也就是“讨薪”的理论依据),这其中最重要的就是需求文档和验收标准。一定要让需求方提供这两个文档资料作为开发的基础。之后开发
网页实现一个简单的音乐播放器(大佬别看。(⊙﹏⊙))
今天闲着无事,就想写点东西。然后听了下歌,就打算写个播放器。 于是乎用h5 audio的加上js简单的播放器完工了。 欢迎 改进 留言。 演示地点跳到演示地点 html代码如下`&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;music&lt;/title&gt; &lt;meta charset="utf-8"&gt
Python十大装B语法
Python 是一种代表简单思想的语言,其语法相对简单,很容易上手。不过,如果就此小视 Python 语法的精妙和深邃,那就大错特错了。本文精心筛选了最能展现 Python 语法之精妙的十个知识点,并附上详细的实例代码。如能在实战中融会贯通、灵活使用,必将使代码更为精炼、高效,同时也会极大提升代码B格,使之看上去更老练,读起来更优雅。 1. for - else 什么?不是 if 和 else 才
数据库优化 - SQL优化
前面一篇文章从实例的角度进行数据库优化,通过配置一些参数让数据库性能达到最优。但是一些“不好”的SQL也会导致数据库查询变慢,影响业务流程。本文从SQL角度进行数据库优化,提升SQL运行效率。 判断问题SQL 判断SQL是否有问题时可以通过两个表象进行判断: 系统级别表象 CPU消耗严重 IO等待严重 页面响应时间过长
2019年11月中国大陆编程语言排行榜
2019年11月2日,我统计了某招聘网站,获得有效程序员招聘数据9万条。针对招聘信息,提取编程语言关键字,并统计如下: 编程语言比例 rank pl_ percentage 1 java 33.62% 2 c/c++ 16.42% 3 c_sharp 12.82% 4 javascript 12.31% 5 python 7.93% 6 go 7.25% 7
通俗易懂地给女朋友讲:线程池的内部原理
餐厅的约会 餐盘在灯光的照耀下格外晶莹洁白,女朋友拿起红酒杯轻轻地抿了一小口,对我说:“经常听你说线程池,到底线程池到底是个什么原理?”我楞了一下,心里想女朋友今天是怎么了,怎么突然问出这么专业的问题,但做为一个专业人士在女朋友面前也不能露怯啊,想了一下便说:“我先给你讲讲我前同事老王的故事吧!” 大龄程序员老王 老王是一个已经北漂十多年的程序员,岁数大了,加班加不动了,升迁也无望,于是拿着手里
经典算法(5)杨辉三角
杨辉三角 是经典算法,这篇博客对它的算法思想进行了讲解,并有完整的代码实现。
腾讯算法面试题:64匹马8个跑道需要多少轮才能选出最快的四匹?
昨天,有网友私信我,说去阿里面试,彻底的被打击到了。问了为什么网上大量使用ThreadLocal的源码都会加上private static?他被难住了,因为他从来都没有考虑过这个问题。无独有偶,今天笔者又发现有网友吐槽了一道腾讯的面试题,我们一起来看看。 腾讯算法面试题:64匹马8个跑道需要多少轮才能选出最快的四匹? 在互联网职场论坛,一名程序员发帖求助到。二面腾讯,其中一个算法题:64匹
面试官:你连RESTful都不知道我怎么敢要你?
面试官:了解RESTful吗? 我:听说过。 面试官:那什么是RESTful? 我:就是用起来很规范,挺好的 面试官:是RESTful挺好的,还是自我感觉挺好的 我:都挺好的。 面试官:… 把门关上。 我:… 要干嘛?先关上再说。 面试官:我说出去把门关上。 我:what ?,夺门而去 文章目录01 前言02 RESTful的来源03 RESTful6大原则1. C-S架构2. 无状态3.统一的接
JDK12 Collectors.teeing 你真的需要了解一下
前言 在 Java 12 里面有个非常好用但在官方 JEP 没有公布的功能,因为它只是 Collector 中的一个小改动,它的作用是 merge 两个 collector 的结果,这句话显得很抽象,老规矩,我们先来看个图(这真是一个不和谐的图????): 管道改造经常会用这个小东西,通常我们叫它「三通」,它的主要作用就是将 downstream1 和 downstre...
为啥国人偏爱Mybatis,而老外喜欢Hibernate/JPA呢?
关于SQL和ORM的争论,永远都不会终止,我也一直在思考这个问题。昨天又跟群里的小伙伴进行了一番讨论,感触还是有一些,于是就有了今天这篇文。 声明:本文不会下关于Mybatis和JPA两个持久层框架哪个更好这样的结论。只是摆事实,讲道理,所以,请各位看官勿喷。 一、事件起因 关于Mybatis和JPA孰优孰劣的问题,争论已经很多年了。一直也没有结论,毕竟每个人的喜好和习惯是大不相同的。我也看
SQL-小白最佳入门sql查询一
不要偷偷的查询我的个人资料,即使你再喜欢我,也不要这样,真的不好;
项目中的if else太多了,该怎么重构?
介绍 最近跟着公司的大佬开发了一款IM系统,类似QQ和微信哈,就是聊天软件。我们有一部分业务逻辑是这样的 if (msgType = "文本") { // dosomething } else if(msgType = "图片") { // doshomething } else if(msgType = "视频") { // doshomething } else { // doshom...
【图解经典算法题】如何用一行代码解决约瑟夫环问题
约瑟夫环问题算是很经典的题了,估计大家都听说过,然后我就在一次笔试中遇到了,下面我就用 3 种方法来详细讲解一下这道题,最后一种方法学了之后保证让你可以让你装逼。 问题描述:编号为 1-N 的 N 个士兵围坐在一起形成一个圆圈,从编号为 1 的士兵开始依次报数(1,2,3…这样依次报),数到 m 的 士兵会被杀死出列,之后的士兵再从 1 开始报数。直到最后剩下一士兵,求这个士兵的编号。 1、方...
致 Python 初学者
欢迎来到“Python进阶”专栏!来到这里的每一位同学,应该大致上学习了很多 Python 的基础知识,正在努力成长的过程中。在此期间,一定遇到了很多的困惑,对未来的学习方向感到迷茫。我非常理解你们所面临的处境。我从2007年开始接触 python 这门编程语言,从2009年开始单一使用 python 应对所有的开发工作,直至今天。回顾自己的学习过程,也曾经遇到过无数的困难,也曾经迷茫过、困惑过。开办这个专栏,正是为了帮助像我当年一样困惑的 Python 初学者走出困境、快速成长。希望我的经验能真正帮到你
“狗屁不通文章生成器”登顶GitHub热榜,分分钟写出万字形式主义大作
一、垃圾文字生成器介绍 最近在浏览GitHub的时候,发现了这样一个骨骼清奇的雷人项目,而且热度还特别高。 项目中文名:狗屁不通文章生成器 项目英文名:BullshitGenerator 根据作者的介绍,他是偶尔需要一些中文文字用于GUI开发时测试文本渲染,因此开发了这个废话生成器。但由于生成的废话实在是太过富于哲理,所以最近已经被小伙伴们给玩坏了。 他的文风可能是这样的: 你发现,...
程序员:我终于知道post和get的区别
是一个老生常谈的话题,然而随着不断的学习,对于以前的认识有很多误区,所以还是需要不断地总结的,学而时习之,不亦说乎
GitHub标星近1万:只需5秒音源,这个网络就能实时“克隆”你的声音
作者 | Google团队 译者 | 凯隐 编辑 | Jane 出品 | AI科技大本营(ID:rgznai100) 本文中,Google 团队提出了一种文本语音合成(text to speech)神经系统,能通过少量样本学习到多个不同说话者(speaker)的语音特征,并合成他们的讲话音频。此外,对于训练时网络没有接触过的说话者,也能在不重新训练的情况下,仅通过未知...
《程序人生》系列-这个程序员只用了20行代码就拿了冠军
你知道的越多,你不知道的越多 点赞再看,养成习惯GitHub上已经开源https://github.com/JavaFamily,有一线大厂面试点脑图,欢迎Star和完善 前言 这一期不算《吊打面试官》系列的,所有没前言我直接开始。 絮叨 本来应该是没有这期的,看过我上期的小伙伴应该是知道的嘛,双十一比较忙嘛,要值班又要去帮忙拍摄年会的视频素材,还得搞个程序员一天的Vlog,还要写BU...
加快推动区块链技术和产业创新发展,2019可信区块链峰会在京召开
11月8日,由中国信息通信研究院、中国通信标准化协会、中国互联网协会、可信区块链推进计划联合主办,科技行者协办的2019可信区块链峰会将在北京悠唐皇冠假日酒店开幕。   区块链技术被认为是继蒸汽机、电力、互联网之后,下一代颠覆性的核心技术。如果说蒸汽机释放了人类的生产力,电力解决了人类基本的生活需求,互联网彻底改变了信息传递的方式,区块链作为构造信任的技术有重要的价值。   1...
程序员把地府后台管理系统做出来了,还有3.0版本!12月7号最新消息:已在开发中有github地址
第一幕:缘起 听说阎王爷要做个生死簿后台管理系统,我们派去了一个程序员…… 996程序员做的梦: 第一场:团队招募 为了应对地府管理危机,阎王打算找“人”开发一套地府后台管理系统,于是就在地府总经办群中发了项目需求。 话说还是中国电信的信号好,地府都是满格,哈哈!!! 经常会有外行朋友问:看某网站做的不错,功能也简单,你帮忙做一下? 而这次,面对这样的需求,这个程序员...
网易云6亿用户音乐推荐算法
网易云音乐是音乐爱好者的集聚地,云音乐推荐系统致力于通过 AI 算法的落地,实现用户千人千面的个性化推荐,为用户带来不一样的听歌体验。 本次分享重点介绍 AI 算法在音乐推荐中的应用实践,以及在算法落地过程中遇到的挑战和解决方案。 将从如下两个部分展开: AI算法在音乐推荐中的应用 音乐场景下的 AI 思考 从 2013 年 4 月正式上线至今,网易云音乐平台持续提供着:乐屏社区、UGC...
【技巧总结】位运算装逼指南
位算法的效率有多快我就不说,不信你可以去用 10 亿个数据模拟一下,今天给大家讲一讲位运算的一些经典例子。不过,最重要的不是看懂了这些例子就好,而是要在以后多去运用位运算这些技巧,当然,采用位运算,也是可以装逼的,不信,你往下看。我会从最简单的讲起,一道比一道难度递增,不过居然是讲技巧,那么也不会太难,相信你分分钟看懂。 判断奇偶数 判断一个数是基于还是偶数,相信很多人都做过,一般的做法的代码如下...
【管理系统课程设计】美少女手把手教你后台管理
【文章后台管理系统】URL设计与建模分析+项目源码+运行界面 栏目管理、文章列表、用户管理、角色管理、权限管理模块(文章最后附有源码) 1. 这是一个什么系统? 1.1 学习后台管理系统的原因 随着时代的变迁,现如今各大云服务平台横空出世,市面上有许多如学生信息系统、图书阅读系统、停车场管理系统等的管理系统,而本人家里就有人在用烟草销售系统,直接在网上完成挑选、购买与提交收货点,方便又快捷。 试想,若没有烟草销售系统,本人家人想要购买烟草,还要独自前往药...
4G EPS 第四代移动通信系统
目录 文章目录目录4G 与 LTE/EPCLTE/EPC 的架构E-UTRANE-UTRAN 协议栈eNodeBEPCMMES-GWP-GWHSSLTE/EPC 协议栈概览 4G 与 LTE/EPC 4G,即第四代移动通信系统,提供了 3G 不能满足的无线网络宽带化,主要提供数据(上网)业务。而 LTE(Long Term Evolution,长期演进技术)是电信领域用于手机及数据终端的高速无线通...
相关热词 c# 图片上传 c# gdi 占用内存 c#中遍历字典 c#控制台模拟dos c# 斜率 最小二乘法 c#进程延迟 c# mysql完整项目 c# grid 总行数 c# web浏览器插件 c# xml 生成xsd
立即提问