使用form的target属性屏蔽url跳

时间：2021-10-27 10:45:57

target:

指定公开赛， 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="提交" onclick="doSave();">

<iframe id="sub_frame" name="sub_frame" height="0" width="0" frameborder="0" marginheight="0" marginwidth="0" ></iframe>

</form>

<br/>id值:

<input id="content" name="content" type="text">

</body>

</html>

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='"+id+"';");

	out.println("</script>");

}

%>

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