标签：javaweb
一：page指令
1.指定编码和语言
<%@ page language="java"import="java.util.*" pageEncoding="UTF-8"%>
2.指定页面的显示形式。word
<%@ page language="java"import="java.util.*" contentType="application/msword;charset=utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP ‘pageword.jsp‘ starting page</title>
</head>
<body>
<table border="1">
<!-- 这里设置一下生成的文件名 -->
<%
response.setHeader("Content-Disposition","attachment;filename=pageword.doc");
%>
<tr><td>java语言</td></tr>
<tr><td>php语言</td></tr>
<tr><td>c++语言</td></tr>
</table>
</body>
</html>
3.处理错误界面
show.jsp
<%@ page language="java" import="java.util.*"pageEncoding="UTF-8"%>
<%@ page errorPage="err.jsp" %>
<%@ taglib prefix="c"uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP ‘show.jsp‘ starting page</title>
</head>
<body>
<%
intresult=10/0;
%>
</body>
</html>
err.jsp
<%@ page language="java"import="java.util.*" pageEncoding="UTF-8"%>
<%@ page isErrorPage="true" %>
<%@ taglib prefix="c"uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP ‘err.jsp‘ starting page</title>
</head>
<body>
<h1>程序出现了错误！</h1>
</body>
</html>
二：包含指令
1. 静态包含：
<%@include file="" %>
include.jsp
<%@ page language="java"import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c"uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01Transitional//EN">
<html>
<head>
<title>My JSP‘include.jsp‘ starting page</title>
</head>
<body>
<%@includefile="Demo2.jsp" %>
</body>
</html>
Demo2.jsp
<%@ page language="java" import="java.util.*"pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01Transitional//EN">
<html>
<head>
<title>My JSPDemo2</title>
</head>
<body>
被包含到include.jsp界面中。
</body>
</html>
2.动态包含
<jsp:include page="Demo2.jsp"/>
三：跳转指令
Demo2.jsp
<%@page language="java"import="java.util.*"pageEncoding="UTF-8"%>
<%@taglib prefix="c"uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPEHTML PUBLIC "-//W3C//DTDHTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP Demo2</title>
</head>
<body>
<%
String name="China";
%>
<jsp:forwardpage="forwordJsp.jsp">
<jsp:paramvalue="<%=name%>" name="name"/>
<jsp:paramvalue="http://blog.csdn.net/dzy21"name="info"/>
</jsp:forward>
</body>
</html>
forwordJsp.jsp
<%@page language="java"import="java.util.*"pageEncoding="UTF-8"%>
<%@taglib prefix="c"uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPEHTML PUBLIC "-//W3C//DTDHTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP ‘forwordJsp.jsp‘ starting page</title>
</head>
<body>
<!--接收传递过来的参数-->
<h1>跳转后的页面</h1>
<h2>参数一：<%=request.getParameter("name")%></h2>
<h2>参数二：<%=request.getParameter("info")%></h2>
</body>
</html>
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版权声明：博主原创文章，转载请说明出处。http://blog.csdn.net/dzy21
标签：javaweb
原文地址：http://blog.csdn.net/dzy21/article/details/47108673
