解决Caused by: java.lang.ClassCastException: org.springframework.web.SpringServletContainerInitializer

ゝ一世哀愁。 2022-05-09 15:22 462阅读 0赞

#### 一、Maven build打war包 ####

###### 首先这个错误是我在用mvn打war包的时候出现的，通过Eclipse的Maven build进行war打包时出现的异常如下 ######

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:1149)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    	at java.lang.Thread.run(Thread.java:748)
    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
    
    十月 16, 2018 9:34:59 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:207)
    	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:863)
    	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
    	at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
    	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:1149)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    	at java.lang.Thread.run(Thread.java:748)
    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

###### 异常有点多，主要找到核心异常 ######

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

###### 出现上面问题一般是maven项目里引用了`ServletContainerInitializer`，带有这个类的jar包，很多文章都说是javax.servlet-api引起的，其实是没有错。找到pom.xml找到javax.servlet加一个`<scope>provided</scope>` ######

<dependency>
    	<groupId>javax.servlet</groupId>
    	<artifactId>servlet-api</artifactId>
    	<version>2.5</version>
    	<scope>provided</scope>
    </dependency>

###### 加上之后然而并没有解决，最后发现原来还有其它依赖也带有`servlet-api`，解决办法如下 ######

![在这里插入图片描述][70]

###### 结果发现我dubbo依赖也有`javax.servlet-api`这个依赖，所以需要排除掉 ######

<dependency>
    	<groupId>com.alibaba</groupId>
    	<artifactId>dubbo</artifactId>
    	<version>${dubbo.version}</version>
    	<exclusions>
    		<exclusion>
    			<groupId>javax.servlet</groupId>
    			<artifactId>javax.servlet-api</artifactId>
    		</exclusion>
    	</exclusions>
    </dependency>

###### 排除之后即可打包成功。 ######

###### 不久之后在重新打包又出现了一个错误。 ######

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.2:compile (default-compile) on project pinyougou-sellergoods-service: Compilation failure
    [ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
    [ERROR] -> [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/MojoFailureException

###### 原因是因为`Installed JREs`的设置，我使用的是jre环境变量，其实该变量是选择JAVA\_HOME路径下的jre，JDK包含的jre。 ######

![在这里插入图片描述][70 1]

###### Apply之后完美打包成功，打包成功正准备运行结果又抛出一个错误，不过这个是运行时的错误。 ######

Servlet.service() for servlet [springmvc] in context with path [] threw exception
     [Request processing failed; nested exception is 
     com.alibaba.dubbo.rpc.RpcException: Failed to invoke the method findALl in the 
     service com.pinyougou.sellergoods.service.BrandService. Tried 3 times of the 
     providers [10.198.1.17:20881] (1/1) from the registry 192.168.25.128:2181 on the 
     consumer 10.198.1.17 using the dubbo version 2.8.4. Last error is: Failed to invoke 
     remote method: findALl, provider: 
     dubbo://10.198.1.17:20881/com.pinyougou.sellergoods.service.BrandService?
     anyhost=true&application=pinyougou-manager-
     web&check=false&dubbo=2.8.4&generic=false&interface=com.pinyougou.sellergood
     s.service.BrandService&methods=findALl&pid=6328&revision=1.0.0-
     SNAPSHOT&side=consumer&timestamp=1539699962916, cause: Failed to send 
     response: Response [id=2, version=2.0.0, status=20, event=false, error=null,
      result=RpcResult [result=[com.pinyougou.pojo.TbBrand@394b5f95, 
      com.pinyougou.pojo.TbBrand@356a7b35, com.pinyougou.pojo.TbBrand@416f46be, com.pinyougou.pojo.TbBrand@648bc3f3, 
      com.pinyougou.pojo.TbBrand@75f8f00, com.pinyougou.pojo.TbBrand@618aef0d, 
      com.pinyougou.pojo.TbBrand@5a6b0f34, com.pinyougou.pojo.TbBrand@60c5dbd1, com.pinyougou.pojo.TbBrand@1b196f46, 
      com.pinyougou.pojo.TbBrand@2ddd19af, com.pinyougou.pojo.TbBrand@2f4da18f, 
      com.pinyougou.pojo.TbBrand@6198fce4, com.pinyougou.pojo.TbBrand@312bccce, 
      com.pinyougou.pojo.TbBrand@74feab25, com.pinyougou.pojo.TbBrand@367d3dec, com.pinyougou.pojo.TbBrand@10a4881b, 
      com.pinyougou.pojo.TbBrand@7f067b7d, com.pinyougou.pojo.TbBrand@7e20403b, com.pinyougou.pojo.TbBrand@21ed804e, 
      com.pinyougou.pojo.TbBrand@153d3038, com.pinyougou.pojo.TbBrand@592c7c71, com.pinyougou.pojo.TbBrand@2571def7], 
      exception=null]], cause: java.lang.IllegalStateException: Serialized class 
      com.pinyougou.pojo.TbBrand must implement java.io.Serializable
    java.lang.IllegalStateException: Serialized class com.pinyougou.pojo.TbBrand must 
    implement java.io.Serializable

###### 异常最后面提示说你这个实体类`TbBrand`需要实现`Serializable`接口。 ######

import java.io.Serializable;
    
    public class TbBrand implements Serializable {
    
    	private Long id;
    
        private String name;
    
        private String firstChar;

###### 实现接口即可，注意实现之后先执行Maven clean在重新打包，没有打包还是用的原先没有加`Serializable`的类。 ######

###### 最后非常开心看到此界面。 ######

![在这里插入图片描述][70 2]

#### 总结 ####

1、在多模块项目开发的时候改了代码需要重新打包，否则无效。

参考：  
[https://blog.csdn.net/imjcoder/article/details/79250992][https_blog.csdn.net_imjcoder_article_details_79250992]  
[https://blog.csdn.net/chenxiaochan/article/details/62036671][https_blog.csdn.net_chenxiaochan_article_details_62036671]

[70]: /images/20220506/a6ff63ec237f4bb89f5087383f3138d2.png
[70 1]: /images/20220506/2af033d2b418475c92689c09a3005de2.png
[70 2]: /images/20220506/d3a928760afc4a2a8a40cb94299a2f1c.png
[https_blog.csdn.net_imjcoder_article_details_79250992]: https://blog.csdn.net/imjcoder/article/details/79250992
[https_blog.csdn.net_chenxiaochan_article_details_62036671]: https://blog.csdn.net/chenxiaochan/article/details/62036671