json在页面的用法的讲解

来源：互联网发布：官路淘宝下载编辑：程序博客网时间：2024/06/08 05:33

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">

    <title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">

<script type="text/javascript">
  onload = function()
  {
   //json
   var str = {'name':'caohuan','age':21};
   //alert(str.name);
   //json数组
   var str1 = [{'name':'caohuan','age':21},{'name':'文斌','age':55}];
   //alert(str1[1].name);
   //将字符窜转换成json
   var str2 = '1+2';
   var json = eval(str2);
   //alert(str2);
   //alert(json);
   //将字符窜格式的json转换成json
   var str3 = '{"name":"曹欢","age":23}';
   //千万记得json字符存格式的数组转换成json格式的数组的转化的方式
   var json1 = eval("("+str3+")");
   //alert(json1.name);
   //这是将json字符窜格式的数组转换成json数组
   var str4 = '[{"name":"曹欢","age":23},{"name":"文斌","age":"34"}]';
   var json2 = eval("("+str4+")");
   alert(json2[1].age);
  }
</script>
</head>

<body>
    This is my JSP page. <br>
</body>
</html>