Tomcat报错：HTTP Status 500 - Wrapper cannot find servlet class
HTTP Status 500 - Wrapper cannot find servlet class com.servlet.servlet.RegServlet or a class it depends on
type Exception report
message Wrapper cannot find servlet class com.servlet.servlet.RegServlet or a class it depends on
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Wrapper cannot find servlet class com.servlet.servlet.RegServlet or a class it depends on org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) java.lang.Thread.run(Unknown Source)
root cause
java.lang.ClassNotFoundException: com.servlet.servlet.RegServlet
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) java.lang.Thread.run(Unknown Source)
解决方案：
在确定servlet类编写正确，及配置文件正确的情况下，仍旧出现如上问题：
准备工作：查看WEB-INFclasses目录下是否正常生成.class文件，如未生成，继续下一步
第一步：清空project—> clean project
第二步：清空tomcat缓存—> 对应目录workCatalinalocalhost 下相应工程的目录文件
第三步：重新发布工程
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