Question

严重: Exception starting filter encodingFilter 删了一个项目，这个项目出现这样的报错，怎么解决啊

严重: Exception starting filter encodingFilter
java.lang.ClassCastException: com.filter.EncodingFilter cannot be cast to javax.servlet.Filter
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4830)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5510)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
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:619)
2015-5-9 13:34:00 org.apache.catalina.core.StandardContext startInternal
严重: Error filterStart
2015-5-9 13:34:00 org.apache.catalina.core.StandardContext startInternal
严重: Context [/JavaPrj_16] startup failed due to previous errors
2015-5-9 13:34:00 org.apache.coyote.AbstractProtocol start

Answer 1

找不到EncodingFilter类异常，可以ctrl+shift+R输入类名，看该类是否存在，如果存在继续查看web.xml中看是否配置该类，ctrl+鼠标点击若能进入则说明类路径无误，重启试试即可