java.lang.NoClassDefFoundError: javax/el/ELResolver 问题解决

HTTP Status 500 - java.lang.NoClassDefFoundError: javax/el/ELResolver


type Exception report

message java.lang.NoClassDefFoundError: javax/el/ELResolver

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

exception

javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/el/ELResolver
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:268)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

root cause

java.lang.NoClassDefFoundError: javax/el/ELResolver
	java.lang.ClassLoader.defineClass1(Native Method)
	java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	java.security.AccessController.doPrivileged(Native Method)
	java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	java.lang.ClassLoader.loadClass(ClassLoader.java:412)
	sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	java.lang.ClassLoader.loadClass(ClassLoader.java:412)
	java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	org.apache.jasper.runtime.JspFactoryImpl.getJspApplicationContext(JspFactoryImpl.java:209)
	org.apache.jsp.login_jsp._jspInit(login_jsp.java:23)
	org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:52)
	org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:164)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:340)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

root cause

java.lang.ClassNotFoundException: javax.el.ELResolver
	java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	java.security.AccessController.doPrivileged(Native Method)
	java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	java.lang.ClassLoader.defineClass1(Native Method)
	java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	java.security.AccessController.doPrivileged(Native Method)
	java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	java.lang.ClassLoader.loadClass(ClassLoader.java:412)
	sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	java.lang.ClassLoader.loadClass(ClassLoader.java:412)
	java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	org.apache.jasper.runtime.JspFactoryImpl.getJspApplicationContext(JspFactoryImpl.java:209)
	org.apache.jsp.login_jsp._jspInit(login_jsp.java:23)
	org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:52)
	org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:164)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:340)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.44 logs.

解决办法：到apache-tomcat/lib目录下，拷贝el-api.jar放到D:\Java\jdk1.6.0_11\jre\lib\ext下，重启Tomcat服务器重试即可。

时间： 2024-10-05 04:43:30

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