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利用form的target属性屏蔽url跳转

2024-07-18 07:11:14   228人阅读

target:

规定在何处打开 action URL。

关键点:

让target指向隐藏的iframe


demo:

form.jsp

<%@ 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>
<script type="text/javascript">
	function doSave(){
		var param = "?method=add";
		testForm.action='handler.jsp' + param ;
		testForm.submit();
	}
</script>

</head>
<body>
<form id="testForm" name="testForm" method="post" target="sub_frame">
id:<input type="text" name="id"><input type="button" value=http://www.mamicode.com/"提交" onclick="doSave();">>
handler.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%
String method=request.getParameter("method");
if("add".equals(method)){
	String id =request.getParameter("id");
	out.println("<script type='text/javascript'>");
	out.println("parent.document.getElementById('content').value=http://www.mamicode.com/'"+id+"';");>


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