e'cipse中，項目沒報錯，正常啟動，訪問控制器時報錯
javax.servlet.ServletException: Servlet.init() for servlet springmvc threw exception org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:745)
Servlet.init()初始化錯誤，錯誤一般發生在控制器中，當出現重名的servlet時候也會報類似的錯誤，
上述錯誤原因：
controller中出現了，不存在的控制器引用
例如：return “redirect:/admin/query.action”,返回重定向到另外一個控制器，但是控制器未定義，就會出現上述錯誤！
--------------個人總結，積累
- javax.servlet.ServletException: Servlet.init() for servlet springmvc threw exception
- org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
- org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
- org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
- org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
- org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
- org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
- org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
- org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
- java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
- java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
- org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
- java.lang.Thread.run(Thread.java:745)