JSP错误页面处理的两种方式，jsp页面两种方式

来源： javaer 分享于 2021-05-24 点击 45681 次点评：267

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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%--发生错误，想让用户看到友好页面 error.jsp--%>
<%@ page errorPage="/demo4/error.jsp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
int d = 1/0;
%>
</body>
</html>

处理错误页面

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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%-- 设置当前页面是错误页面，获得错误信息 exception --%>
<%@page isErrorPage="true" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h4>对不起，服务器正在升级，请稍后访问！</h4>
<h5>错误原因：<%=exception.getMessage() %></h5>
</body>
</html>

方法2：

设置web.xml全局文件

如定义404不存在页面和500服务器内部错误页面

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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta content="3;url=/day08/index.jsp" http-equiv="refresh">
<title>Insert title here</title>
</head>
<body>
<h1>对不起，你访问的资源不存在，网站将在3秒之后自动跳转到主页面！</h1>
</body>
</html>

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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>对不起，服务器发生内部错误，请稍后访问！</h1>
</body>
</html>

web.xml设置

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