jbpm4与struts2整合包冲突

最新推荐文章于 2018-12-18 09:18:55 发布

原创最新推荐文章于 2018-12-18 09:18:55 发布 · 144 阅读

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#Servlet #JSP #Apache #Java #Tomcat

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本文详细介绍了JBPM4与Struts2整合过程中遇到的包冲突问题及解决方法。主要表现为JSP页面加载时出现的LinkageError错误。通过调整JAR包位置和移除冲突包，可以有效解决此问题。

jbpm4与struts2整合包冲突错误如下：


description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/login_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signature
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:274)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause

java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/login_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signature
	org.apache.jsp.login_jsp._jspInit(login_jsp.java:21)
	org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:80)
	org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:157)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:320)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)