js获取json数据

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共9个回答

热心网友

这些值是你在后台打出来的吧
传到前台来是个一个字符串类型，需要经过转换才可以像对象那样点出来里面的值
架设你JS里面接收这个字符串的变量叫
strJson

var json = eval('(' + strJson + ')');
alert(json.city);
alert(json.country);

热心网友

//javascript
var data = '{"code":0,"data":{"ip":"210.75.225.254","country":"\u4e2d\u56fd","area":"\u534e\u5317",
"region":"\u5317\u4eac\u5e02","city":"\u5317\u4eac\u5e02","county":"","isp":"\u7535\u4fe1",
"country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000",
"county_id":"-1","isp_id":"100017"}}';

var result=eval('('+data+')');
var country= result.data.country;

热心网友

var Data = eval('(' + json + ')');var json1 = Data.channel.item; // item是数组var r = "";for (var i = 0; i < json1.length; i++) { var obj = json1[i]; r += obj.title + "" + obj.description; var cateforys = obj.catefory; // catefory是数组 for (var j = 0; j < cateforys.length; j++) { // 中括号方式获取js变量中不允许出现的 var catefory = cateforys[j]; r += catefory["-domain"] + catefory["#text"]; }}alert(r);

热心网友

var json = {"code":0,"data":{"ip":"210.75.225.254","country":"\u4e2d\u56fd","area":"\u534e\u5317",
"region":"\u5317\u4eac\u5e02","city":"\u5317\u4eac\u5e02","county":"","isp":"\u7535\u4fe1",
"country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000",
"county_id":"-1","isp_id":"100017"}};
alert(json.data.city);
======> 输出“北京市”

热心网友

var objTest = {"code":0,"data":{"ip":"210.75.225.254","country":"\u4e2d\u56fd","area":"\u534e\u5317",
"region":"\u5317\u4eac\u5e02","city":"\u5317\u4eac\u5e02","county":"","isp":"\u7535\u4fe1",
"country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000",
"county_id":"-1","isp_id":"100017"}};
alert(objTest.data.city);
alert(objTest.data.conty);追问亲，city的值是动态的哦

追答city的值是服务器端一次输出出来的吧？
如果是这样，js调用是不会受到影响的

热心网友

var arrayMsg = {"code":0,"data":{"ip":"210.75.225.254","country":"\u4e2d\u56fd","area":"\u534e\u5317",
"region":"\u5317\u4eac\u5e02","city":"\u5317\u4eac\u5e02","county":"","isp":"\u7535\u4fe1",
"country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000",
"county_id":"-1","isp_id":"100017"}};

var city = arrayMsg.data.city;

var county = arrayMsg.data.county;追问亲，这不是定值哦

追答没明白。。。

热心网友

var bb={"code":0,"data":{"ip":"210.75.225.254","country":"\u4e2d\u56fd","area":"\u534e\u5317",
"region":"\u5317\u4eac\u5e02","city":"\u5317\u4eac\u5e02","county":"","isp":"\u7535\u4fe1",
"country_id":"86","area_id":"100000","region_id":"110000","city_id":"110000",
"county_id":"-1","isp_id":"100017"}}

bb.data.city
bb.data.county

热心网友

对象.data.city
对象.data.country

热心网友

var json = eval('[' + json返回值+ ']');
alert(json.city);