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Json解析

 
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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:

<!DOCTYPE HTML>
<html>
<head>
	<title>Window.JSON</title>
	<meta charset="gb18030">
</head>

<body>
	<button type="button" id="btn1">解析json字符串</button>
	<button type="button" id="btn2">json对象转换为json字符串</button>
	<div id="res">
	
	</div>
	<script language="JavaScript">
	<!--
		var jsonStr = "{\"total\":100,\"data\":[{\"id\":10001,\"name\":\"scott\"},{\"id\":10002,\"name\":\"tiger\"}]}";
		var jsonObj = window.JSON.parse(jsonStr);
		
		document.getElementById("btn1").onclick = function() {
			var str = "json字符串解析为json对象<br>";
			str += "<span>Total:"+jsonObj.total+"</span><br><span>Data:";
			for (var i=0;i<jsonObj.data.length ; i++)
			{
				str += "id:" + jsonObj.data[i].id + ",name:" + jsonObj.data[i].name+"<br>";
			}
			str += "</span><br>";
			document.querySelector("#res").innerHTML = str;

		}
		document.getElementById("btn2").onclick = function() {
			var jsonObj = {total:100,data:[{id:10001,name:"scott"},{id:10002,name:"tiger"}]};
			var jsonStr = window.JSON.stringify(jsonObj);
			var str = "转为json字符串:<br>" + jsonStr;
			document.querySelector("#res").innerHTML = str;
		}
	//-->
	</script>
</body>
</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"}]}

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