解决HTTP Status 500 - /pages/admin/menu/menuMgr.jsp (line: 1, column: 2) 错误

HTTP Status 500 - /pages/admin/menu/menuMgr.jsp (line: 1, column: 2) Page directive: illegal to have multiple occurrences of contentType with different values (old: text/html; charset=UTF-8, new: text/html; charset=utf-8)

---

type Exception report

message /pages/admin/menu/menuMgr.jsp (line: 1, column: 2) Page directive: illegal to have multiple occurrences of contentType with different values (old: text/html; charset=UTF-8, new: text/html; charset=utf-8)

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

exception

org.apache.jasper.JasperException: /pages/admin/menu/menuMgr.jsp (line: 1, column: 2) Page directive: illegal to have multiple occurrences of contentType with different values (old: text/html; charset=UTF-8, new: text/html; charset=utf-8)
	org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)
	org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:443)
	org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:237)
	org.apache.jasper.compiler.Validator$DirectiveVisitor.visit(Validator.java:135)
	org.apache.jasper.compiler.Node$PageDirective.accept(Node.java:589)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2392)
	org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2444)
	org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2450)
	org.apache.jasper.compiler.Node$Root.accept(Node.java:474)
	org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2392)
	org.apache.jasper.compiler.Validator.validateDirectives(Validator.java:1805)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:196)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:374)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:341)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:662)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:364)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

把第一行<%@ page language="java" contentType="text/html; charset=utf-8"%>去掉。因为它重复加载了。