HTML5已原生支持json的解析，window.JSON.parse()将json格式字符串转换为json对象，window.JSON.stringify()将json对象转换为json格式字符串。
示例：
Html代码
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<!DOCTYPE HTML>
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<html>
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<head>
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<title>Window.JSON</title>
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<meta charset="gb18030">
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</head>
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<body>
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<button type="button" id="btn1">解析json字符串</button>
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<button type="button" id="btn2">json对象转换为json字符串</button>
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<div id="res">
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</div>
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<script language="JavaScript">
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<!--
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var jsonStr = "{\"total\":100,\"data\":[{\"id\":10001,\"name\":\"scott\"},{\"id\":10002,\"name\":\"tiger\"}]}";
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var jsonObj = window.JSON.parse(jsonStr);
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document.getElementById("btn1").onclick = function() {
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var str = "json字符串解析为json对象<br>";
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str += "<span>Total:"+jsonObj.total+"</span><br><span>Data:";
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for (var i=0;i<jsonObj.data.length ; i++)
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{
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str += "id:" + jsonObj.data[i].id + ",name:" + jsonObj.data[i].name+"<br>";
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}
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str += "</span><br>";
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document.querySelector("#res").innerHTML = str;
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}
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document.getElementById("btn2").onclick = function() {
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var jsonObj = {total:100,data:[{id:10001,name:"scott"},{id:10002,name:"tiger"}]};
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var jsonStr = window.JSON.stringify(jsonObj);
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var str = "转为json字符串：<br>" + jsonStr;
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document.querySelector("#res").innerHTML = str;
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}
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//-->
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</script>
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</body>
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</html>
单击“解析json字符串”按钮，结果：
json字符串解析为json对象
Total:100
Data:id:10001,name:scott
id:10002,name:tiger
单击“json对象转换为json字符串”按钮，结果：
转为json字符串：
{"total":100,"data":[{"id":10001,"name":"scott"},{"id":10002,"name":"tiger"}]}
