关于启动项目报错问题

[qx7869009]

原来项目是用mysql 现在改用oracle 我就改了一下hibernate的配置文件 然后加了连接驱动(我用的12c 但是jdk用的1.7所以没有连接成功) 报错 我改成mysql连接还是报错 有没有提点一下的
报错内容
严重: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/market]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1260)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2002)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodError: javax.servlet.ServletContext.getClassLoader()Ljava/lang/ClassLoader;
at org.apache.catalina.startup.WebappServiceLoader.load(WebappServiceLoader.java:96)
at org.apache.catalina.startup.ContextConfig.processServletContainerInitializers(ContextConfig.java:1573)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1279)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:887)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:387)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5472)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
... 10 more
六月 24, 2017 11:13:45 上午 org.apache.catalina.startup.HostConfig deployDirectory
严重: Error deploying web application directory D:\develop\apache-tomcat-7.0.69\webapps\market
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/market]]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:903)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1260)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2002)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
六月 24, 2017 11:13:45 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory D:\develop\apache-tomcat-7.0.69\webapps\market has finished in 827 ms
六月 24, 2017 11:13:45 上午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-apr-8080"]
六月 24, 2017 11:13:45 上午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-apr-8009"]
六月 24, 2017 11:13:45 上午 org.apache.catalina.startup.Catalina start

[吾省]

Caused by: java.lang.NoSuchMethodError: javax.servlet.ServletContext.getClassLoader()Ljava/lang/ClassLoader;根据这个错误提示，应该是没有引入javax.servletjar包吧！

[李德胜1995]

Caused by: java.lang.NoSuchMethodError: javax.servlet.ServletContext.getClassLoader()Ljava/lang/ClassLoader。。。。少了servlet-api.jar或者多个版本问题，。。tomcat7的lib下面的servlet-api.jar的servletContext有定义这个方法，servlet-api-2.5.jar没有定义这个方法。。

[qx7869009]

重装解决了 刚开始提醒的是没有servlet的jar 后边倒进去又提醒重复 最后我重新装了软件 哈哈