解决在tomecat启动时报 java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListen

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解决在tomecat启动时报

严重: Error configuring application listener of class org.springframework.web.context.ContextLoaderListener

的三种解决办法

严重: Error configuring application listener of class org.springframework.web.context.ContextLoaderListener

java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4660)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
2015-10-30 15:46:18 org.apache.catalina.core.StandardContext listenerStart
严重: Error configuring application listener of class ch.qos.logback.classic.selector.servlet.ContextDetachingSCL
java.lang.ClassNotFoundException: ch.qos.logback.classic.selector.servlet.ContextDetachingSCL
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4660)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
    at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:662)

第一种情况：确实缺少 jar 包！

解决办法：缺少spring-web.jar,将其导入到WEB-INF/lib 目录下，build path就好了

第二种情况：tomcat的缓存问题！

解决办法：eclipse里面的servers全部删除，然后把工程clean一下，之后重新建一个server运行。这样问题的就解决了

第三种情况：在开发中使用了 Maven ，而在 Deployment Assembly 中没有添加 Maven！

解决办法：打开 Build Path 中的 Configure Build Path... ,

找到左侧的 Deployment Assembly 点击右侧 Add...

选中 Maven Dependencies，点击 Finish ,

原文地址：http://blog.sina.com.cn/s/blog_4c6674210102vt2g.html

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