Question

在eclipse中运行jsp出现HTTP Status 500 - HTTP Status 500 - -

HTTP Status 500 - type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception org.apache.jasper.JasperException: /ceshi.jsp(4,1) Page directive must not have multiple occurrences of pageencoding
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:102)
org.apache.jasper.compiler.Validator$DirectiveVisitor.visit(Validator.java:194)
org.apache.jasper.compiler.Node$PageDirective.accept(Node.java:608)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Validator.validateDirectives(Validator.java:1696)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:167)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:332)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.Apache Tomcat/6.0.20

Answer 1

cannot be resolved in either web.xml or the jar files deployed with this application
检查一下是不是web.xml或者 jar包问题

我检查过web.xml的文件，没有什么问题，再寻找.jar包的问题
删除\WebContent\WEB-INF\lib下面的jeecms-cms-2012-sp1、jeecms-common-2012-sp1、jeecms-core-2012-sp1三个.jar包，再刷新Eclipse，重新启动tomcat，在tomcat的服务下运行工程就ok了

Answer 2

ceshi.jsp第四行有问题，
Page directive must not have multiple occurrences of pageencoding，
不能设置多个pageencoding属性

Answer 3

500都是语法错误来的，