JBPM4 使用中碰到的一些问题

// http://blog.csdn.net/uciqxkj/article/details/5257846

操作前请先备份!我是将el-api.jar剪切到新建的backup目录下的。

问题1:Caused by: java.lang.ClassNotFoundException: de.odysseus.el.util.SimpleResolver

原因:是tomcat 6.0下面的el-api.jar

解决方法:删掉tomcat6的el.jar,加入juel.jar,juel-impl.jar,juel-engine.jar 

juel.jar,juel-impl.jar,juel-engine.jar 可以在jbmp4.0的lib目录下找到,

也可以点击下载

问题2:java.lang.NoClassDefFoundError: javax/el/ExpressionFactory

 

原因:tomcat/lib下的el-api.jar被删除

解决方法:把名为javaee.jar包放到tomcat/lib里面就可以了,可以在myeclipse下找到,

也可以点击下载

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