jsp中获取url中参数

一、引入js

二、写一个js方法，通过正则表达式获取URL后面的参数

test3.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" src="/javaweb1/js/jquery-1.11.0.js"></script>
</head>
<script type="text/javascript">
    $(function(){
        var str = getQueryString("name");
           alert(str);
    })
    
    function getQueryString(name) {   
      var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");   
      var r = window.location.search.substr(1).match(reg);   
      if (r != null) return decodeURI(r[2]); return null;   
    }  
</script>
<body>
</body>
</html>

浏览器输入：http://localhost:1080/javaweb1/test6/test3.jsp?name=测试代码

这种方法也解决了get中文乱码的问题