Question

我正试图从我的JSON获取ID，但似乎我做了一些愚蠢的事情。

请查看下面的json和jquery代码。

myData = 'result({"respond":1,"paging":{"stillmore":0,"perpage":10,"callpage":1,"next":2,"previous":0,"pages":1,"result":"1"},"message":"","result":[{"ID":"1","user_registered":"13th February 2015","display_name":"SMPI","description":"","custom_fields":{"job_title":"Developer","company_name":"SMIO","telephone_number":"+1 343 5325 6456","thumbnail_id":"domain.com\/wp-content\/uploads\/ava.jpg"}}]});';

var myData = JSON.parse(myData);

$(document).ready(function () {
$.each(myData, function () {
    $('<li>' + this.result.ID + '</li>').appendTo('#groups');
});
});

如果有人能帮我解决我的问题，我会非常感激。请随时修改我的jsfiddle：

http://jsfiddle.net/pae5f3j7/

Answer 1

您的JSON格式不正确，当您尝试解析时，您会获得SyntaxError: Unexpected token r。

var data= 'result({"respond":1,"paging":{"stillmore":0,"perpage":10,"callpage":1,"next":2,"previous":0,"pages":1,"result":"1"},"message":"","result":[{"ID":"1","user_registered":"13th February 2015","display_name":"SMIO API","description":"","custom_fields":{"job_title":"Developer","company_name":"SMIO","telephone_number":"+1 343 5325 6456","thumbnail_id":"domain.com\/wp-content\/uploads\/ava.jpg"}}]});';


data=data.replace('result(','');
data=data.replace(');','');

var parsedData= JSON.parse(data);
// you can now get ID ( example : parsedData.result[0].ID )

Answer 2

尝试

// call `JSON.stringify` with `myData` argument
var myData = JSON.stringify({
    "respond": 1,
    "paging": {
        "stillmore": 0,
        "perpage": 10,
        "callpage": 1,
        "next": 2,
        "previous": 0,
        "pages": 1,
        "result": "1"
    },
    "message": "",
    "result": [{
        "ID": "1",
        "user_registered": "13th February 2015",
        "display_name": "SMIO API",
        "description": "",
        "custom_fields": {
            "job_title": "Developer",
            "company_name": "SMIO",
            "telephone_number": "+1 343 5325 6456",
            "thumbnail_id": "domain.com\/wp-content\/uploads\/ava.jpg"
        }
    }]
});

// call `JSON.parse` with `myData` argument
var res = JSON.parse(myData);

$(document).ready(function () {
    // call `$.each` with `res.result` array argument
    $.each(res.result, function (key, val) {
        console.log(key, val);
        $("<li>" + val.ID + "</li>").appendTo("#groups");
    });
});

jsfiddle http://jsfiddle.net/pae5f3j7/3/

替代地

function result(data) {
    return data
};

myData = 'result({"respond":1,"paging":{"stillmore":0,"perpage":10,"callpage":1,"next":2,"previous":0,"pages":1,"result":"1"},"message":"","result":[{"ID":"1","user_registered":"13th February 2015","display_name":"SMIO API","description":"","custom_fields":{"job_title":"Developer","company_name":"SMIO","telephone_number":"+1 343 5325 6456","thumbnail_id":"domain.com\/wp-content\/uploads\/ava.jpg"}}]});';

myData = eval(myData);

$(document).ready(function () {
    $.each(myData.result, function (key, val) {
        console.log(key, val);
        $("<li>" + val.ID + "</li>").appendTo("#groups");
    });
});

jsfiddle http://jsfiddle.net/pae5f3j7/5/

// removed semicolon `;` at close of string
myData = 'result({"respond":1,"paging":{"stillmore":0,"perpage":10,"callpage":1,"next":2,"previous":0,"pages":1,"result":"1"},"message":"","result":[{"ID":"1","user_registered":"13th February 2015","display_name":"SMIO API","description":"","custom_fields":{"job_title":"Developer","company_name":"SMIO","telephone_number":"+1 343 5325 6456","thumbnail_id":"domain.com\/wp-content\/uploads\/ava.jpg"}}]})'; 


myData = JSON.parse(myData.split(/^.*\(|\)$/)[1]);

$(document).ready(function () {
    $.each(myData.result, function (key, val) {
        console.log(key, val);
        $('<li>' + val.ID + '</li>').appendTo('#groups');
    });
});

jsfiddle http://jsfiddle.net/pae5f3j7/6/

Answer 3

jQuery $ .each采用带有两个变量的匿名函数，通常称为idx和elem，引用数组的索引和数组的元素。

你的。每个函数应该看起来更像这样：

$(myData).each(function (idx, elem) {

    var item = "<li>" + $(elem).result.ID + "</li>";
    $("#groups").append(item);
});

这假设myData是一个Jquery数组。

从JSON字符串获取值

3 个答案: