Sping mvc问题 A child container failed during start

本文详细解析了在使用Spring MVC 4.2.4版本时遇到的Tomcat启动失败问题,特别是因类型转换异常导致的错误,并提供了解决方案。

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最近搭建分布式的框架,写测试的过程中出现A child container failed during start错误

错题提示:

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[/qianjibian-provider]]
	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[/qianjibian-provider]]
	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

七月 29, 2018 3:08:27 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: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

分析原因:org.springframework.web.SpringServletContainerInitializer cannot be cast to javax.servlet.ServletContainerInitializer

明显的类型转换异常,因为在我使用的springmvc版本是4.2.4,此SpringServletContainerInitializer(spring-web-4.2.4.RELEASE.jar)是由jdk1.6编译生成的,而ServletContainerInitializer(javax.servlet-api-3.1.0.jar)是由jdk1.7编译生成的,所以产生了类型转换异常。

解决办法:换成JDK7

### IntelliJ IDEA 中 Spring MVC 的配置及使用教程 #### 1. 创建 Spring MVC 项目 在 IntelliJ IDEA 中创建一个 Spring MVC 项目的过程可以分为几个部分。首先,需要通过 IntelliJ IDEA 提供的新建项目的向导来初始化 Maven 或 Gradle 工程,并引入必要的依赖项[^1]。 对于 Maven 项目,在 `pom.xml` 文件中添加如下依赖以支持 Spring MVC 功能: ```xml <dependencies> <!-- Spring Web --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.3.20</version> </dependency> <!-- Servlet API --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.1</version> <scope>provided</scope> </dependency> <!-- JSTL Support --> <dependency> <groupId>javax.servlet.jsp.jstl</groupId> <artifactId>jstl-api</artifactId> <version>1.2</version> </dependency> </dependencies> ``` #### 2. 配置 Tomcat 运行环境 为了运行 Spring MVC 应用程序,通常会使用 Apache Tomcat 作为嵌入式的服务器。可以通过下载并解压 Tomcat 核心程序到本地目录完成安装[^4]。接着,在 IntelliJ IDEA 中设置 Tomcat 的路径以及启动参数: - 打开 **File -> Settings -> Build, Execution, Deployment -> Application Servers** - 添加新的应用服务器实例指向已有的 Tomcat 安装位置 最后一步是在 Run/Debug Configurations 中指定部署的应用名称及其上下文根路径。 #### 3. 设置视图解析器 (View Resolver) Spring MVC 使用视图解析器将逻辑视图名映射为实际物理资源的位置。最常用的实现方式之一就是 InternalResourceViewResolver 类型的 bean 定义[^3]。下面是一个典型的 XML 配置片段展示如何声明此类 Bean 并设定其 prefix 和 suffix 属性值[^5]: ```xml <!-- ViewResolver 视图解析器 --> <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> ``` 上述代码表示所有的视图都将被放置于 `/WEB-INF/jsp/` 路径下,并且扩展名为 `.jsp`. #### 4. 编写控制器 Controller Controller 是处理 HTTP 请求的核心组件。它接收来自客户端的数据输入,调用业务服务层的方法执行操作后再返回响应给前端页面显示结果。这里给出一段简单的例子说明基本流程[^2]: 假设我们有一个 URL 映射 "/hello": ```java @Controller public class HelloController { @RequestMapping("/hello") public String hello(Model model){ model.addAttribute("message", "Hello World!"); return "hello"; // 对应 /WEB-INF/jsp/hello.jsp } } ``` 当访问该地址时,后台会传递 message 参数至对应的 jsp 页面渲染输出最终效果。 --- ###
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