本文實例講述了Jquery解析json字符串及json數組的方法。分享給大家供大家參考。具體如下：
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 <!doctype html> <html> <head> <meta charset="utf-8"> <script src="js/jquery-1.6.2.min.js"></script> </head> <body> <hr /> <h3>解析json字符串、json數組</h3> <input type="button" id="jsonBtn" name="jsonBtn" value="jsonArray" /> <input type="button" id="jsonArray2" name="jsonArray2" value="jsonArray2" /> <input type="button" id="jsonStr" name="jsonStr" value="jsonStr" /> <input type="button" id="jsonStr2" name="jsonStr2" value="jsonStr2" /> <hr /> <div class="jsonText"> {"ret": 0, "msg": "", "is_lost":0, "nickname": "小米", "gender": "男", "province": "廣東", "city": "廣州", "year": "1990", "figureurl": "http://qzapp.qlogo.cn/qzapp/101152201/D87BF108B19279F31587CE96E5648A98/30", "figureurl_1": "http://qzapp.qlogo.cn/qzapp/101152201/D87BF108B19279F31587CE96E5648A98/50", "figureurl_2": "http://qzapp.qlogo.cn/qzapp/101152201/D87BF108B19279F31587CE96E5648A98/100", "figureurl_qq_1": "http://q.qlogo.cn/qqapp/101152201/D87BF108B19279F31587CE96E5648A98/40", "figureurl_qq_2": "http://q.qlogo.cn/qqapp/101152201/D87BF108B19279F31587CE96E5648A98/100", "is_yellow_vip": "0", "vip": "0", "yellow_vip_level": "0", "level": "0", "is_yellow_year_vip": "0"} </div> <hr /> <div class="jsonArray"> { root: [ {name:'1',value:'0'}, {name:'6101',value:'西安市'}, {name:'6102',value:'銅川市'}, {name:'6103',value:'寶雞市'}, {name:'6104',value:'鹹陽市'}, {name:'6105',value:'渭南市'}, {name:'6106',value:'延安市'}, {name:'6107',value:'漢中市'}, {name:'6108',value:'榆林市'}, {name:'6109',value:'安康市'}, {name:'6110',value:'商洛市'} ], json: [ {name:'6103',value:'寶雞市'}, {name:'6104',value:'鹹陽市'}, {name:'6107',value:'漢中市'}, {name:'6108',value:'榆林市'}, {name:'6110',value:'商洛市'} ] } </div> <hr /> <div class="jsonArray2"> [ {name:'1',value:'0'}, {name:'6101',value:'西安市'}, {name:'6102',value:'銅川市'}, {name:'6103',value:'寶雞市'}, {name:'6104',value:'鹹陽市'}, {name:'6105',value:'渭南市'}, {name:'6106',value:'延安市'}, {name:'6107',value:'漢中市'}, {name:'6108',value:'榆林市'}, {name:'6109',value:'安康市'}, {name:'6110',value:'商洛市'} ] </div> </body> </html> <script type="text/javascript"> ///jQuery 解析json字符串 //解析復雜的json數組 $("#jsonBtn").click(function(){ var data=$(".jsonArray").html(); alert("-----"+data); var dataObj=eval("("+data+")");//轉換為json對象 alert(dataObj.root.length);//輸出root的子對象數量 alert(dataObj.json.length);//輸出json的子對象數量 //遍歷json數組 $.each(dataObj.root, function(i, item) { alert(item.name+"-----root-------"+item.value); }); //遍歷json數組 $.each(dataObj.json, function(i, item) { alert(item.name+"-----json-------"+item.value); }); }); //解析單個的json數組 $("#jsonArray2").click(function(){ var data=$(".jsonArray2").html(); alert("-----"+data); var dataObj=eval("("+data+")");//轉換為json對象 alert(dataObj.length);//輸出root的子對象數量 //遍歷json數組 $.each(dataObj, function(i, item) { alert(item.name+"-----jsonArray-------"+item.value); }); }); ///解析標准的Json串 方法一 $("#jsonStr").click(function(){ var json=$(".jsonText").html(); alert("---2--"+json); var item = jQuery.parseJSON(json); alert(item.nickname); alert(item.ret); alert(item.figureurl ); }); ///解析標准的Json串，方法二 $("#jsonStr2").click(function(){ var json=$(".jsonText").html(); alert("---2--"+json); var obj = eval("("+json+")"); alert(obj.nickname); alert(obj.ret); alert(obj.figureurl ); }); </script>希望本文所述對大家的jQuery程序設計有所幫助。