search

Home >Web Front-end >JS Tutorial >Sample code for mutual conversion between json strings_javascript skills

Sample code for mutual conversion between json strings_javascript skills

WBOY
WBOYOriginal
2016-05-16 16:39:101051browse

The JSON string can be converted into an object through the eval() function. The stringifier function is the opposite of parse and is used to convert a js object into JSON text

<%@ 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%>" rel="external nofollow" > 
<title>My JSP 'test5.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"> 
<!-- 
<link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" > 
--> 
<script type="text/javascript" src="<%=basePath%>/js/json2.js"></script> 
<script type="text/javascript"> 
alert("xxxx"); 
var t="{'firstName': 'cyra', 'lastName': 'richardson', 'address': {"+ 
"'streetAddress': '1 Microsoft way', 'city': 'Redmond', 'state': 'WA',"+ 
"'postalCode': 98052 },'phoneNumbers': [ '425-777-7777','206-777-7777' ] }"; 
var jsonobj=eval('('+t+')'); 
alert(t.firstName+" xxx"); 
alert(jsonobj.lastName); 

var t2="[{name:'zhangsan',age:'24'},{name:'lisi',age:'30'},{name:'wangwu',age:'16'},{name:'tianqi',age:'7'}] "; 
var myobj=eval(t2); 
for(var i=0;i<myobj.length;i++){ 
alert(myobj[i].name); 
alert(myobj[i].age); 
} 

var t3="[['<a href=# onclick=openLink(14113295100,社旗县国税局桥头税务所,14113295100,d6d223892dc94f5bb501d4408a68333d,swjg_dm);>14113295100</a>','社旗县国税局桥头税务所','社旗县城郊乡长江路西段']]"; 
//通过eval() 函数可以将JSON字符串转化为对象 
var obj = eval(t3); 
for(var i=0;i<obj.length;i++){ 
for(var j=0;j<obj[i].length;j++){ 
alert(obj[i][j]); 
} 
var jsonText = JSON.stringify(obj); 
alert(jsonText); 
} 

/* 
//stringifier 函数的作用跟 parse 相反， 用来将一个js对象转换为 JSON 文本。 
var jsonText = JSON.stringify(obj); 
alert(jsonText); 

//如果基于安全的考虑的话，最好是使用一个 JSON 解析器。 一个 JSON 解析器将只接受 JSON 文本。所以是更安全的。 
var myObject = JSON.parse(myJSONtext, filter); 
//可选的 filter 参数将遍历每一个value key 值对， 并进行相关的处理。如： 
//如 
myData = JSON.parse(text, function (key, value) { 

return key.indexOf('date') >= 0 &#63; new Date(value) : value; }); 

//stringifier 函数的作用跟 parse 相反， 用来将一个js对象转换为 JSON 文本。 
var myJSONText = JSON.stringifier(myObject); 
*/ 
</SCRIPT> 

</head> 
<body> 
This is my JSP page. <br> 
</body> 
</html>
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：Examples of calling js anonymous functions (various forms)_javascript skillsNext article：Examples of calling js anonymous functions (various forms)_javascript skills

Related articles

See more