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Java Web开发典型模块 第三章注册与登录验证模块 03例
发表在JavaWeb图书答疑
2010-03-26
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版块置顶:
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HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Error allocating a servlet instance
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:837)
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640)
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1286)
java.lang.Thread.run(Thread.java:595)
root cause
java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.wy.servlet.UserInfoServlet)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1884)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:889)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1353)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1232)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:837)
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640)
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1286)
java.lang.Thread.run(Thread.java:595)
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Error allocating a servlet instance
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:837)
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640)
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1286)
java.lang.Thread.run(Thread.java:595)
root cause
java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.wy.servlet.UserInfoServlet)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1884)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:889)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1353)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1232)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:837)
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640)
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1286)
java.lang.Thread.run(Thread.java:595)