jsp无法运行,报错HTTP Status 500

[技术科]

在Myeclipse中servlet可以正常运行,但在同一项目中新建并运行jsp时报错如下,是否是web.xml中需要设置什么?:
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: java.lang.NoClassDefFoundError: javax/el/ELResolver
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:274)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


root cause

java.lang.NoClassDefFoundError: javax/el/ELResolver
java.lang.ClassLoader.findBootstrapClass(Native Method)
java.lang.ClassLoader.findBootstrapClass0(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
java.lang.ClassLoader.loadClassInternal(Unknown Source)
org.apache.jasper.runtime.JspFactoryImpl.getJspApplicationContext(JspFactoryImpl.java:200)
org.apache.jsp.a_jsp._jspInit(a_jsp.java:22)
org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:52)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:159)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
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)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.14 logs.


--------------------------------------------------------------------------------

Apache Tomcat/6.0.14

[NGT_11]

考到 lib下

[老紫竹]

因为 myeclipse 会自动把需要的jar加入到 CLASSPATH

[老紫竹]

java.lang.NoClassDefFoundError: javax/el/ELResolver

你把el-api.jar, el-ri.jar 复制到 tomcat/shared/lib 目录下面去吧！

[薛定谔之死猫]

学习，老紫竹好早

[nanjg]

复制到项目的lib中好点啊

[临远]

500是服务器出错了呗。
el那个东西，听说换个新版本tomcat就好了，比如tomcat-6

[技术科]

谢谢老紫竹,解决了,但是还有一点疑惑,之前重装了jdk,在myeclipse中直接创建默认的jsp页面,
直接运行没问题,但是在使用了servlet后,就出现这个问题,不解...

[海会圣贤]

你应该是用到了EL表达式吧!
1楼的说对了啊.
1楼你好牛!

[wo8576]

没明白

[songweipeng]

学习

[token1984]

学习了 嘿嘿