【异常】java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher异常解决方法
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今天在做web项目时用到JSONObject,用的是MyEclipse自动导入的struts2的lib,其中自带了json-lib-2.1-jdk15.jar。
在struts2的action中已经导入了net.sf.json.JSONObject包。发现用到JSONObject jsonObject = new JSONObject()时,MyEclipse是没有报错的,但是到了JSONObject jsonObject = new JSONObject()时就是执行不下去!
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error that prevented it from fulfilling this request.
exception
java.lang.reflect.InvocationTargetExceptionsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)……………………org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
root cause
java.lang.NoClassDefFoundError: net/sf/ezmorph/Morphermapsns.action.Login.login(Login.java:34)……………………org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
root cause
java.lang.ClassNotFoundException: net.sf.ezmorph.Morpherorg.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)……………………org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.30 logs.
Apache Tomcat/7.0.30
其中发现java.lang.ClassNotFoundException: net.sf.ezmorph.Morpher,很明显是没有找到相应的class。原来是除了要导入json-lib-2.1-jdk15.jar包外,还要导入其它几个依赖包:commons-beanutils.jar,commons-httpclient.jar,commons-lang.jar,ezmorph.jar,morph-1.0.1.jar
点击下载依赖jar包
导入这几个依赖包之后就不再出错了!
- 【异常】java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher异常解决方法
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