getjson | 易学教程

Backbone and best practice getting config JSON

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问题 I've got a JSON file that looks like this. { "config": { "setting1": 'blabla', "setting2": 'blablabla' }, "content": { "title": "Title of an exercise.", "author": "John Doe", "describtion": "Exercise content." }, "answers": [ { "id": "1", "content": "Dog", "correct": true }, { "id": "2", "content": "Fish", "correct": false } ] } Than, I create a Backbone View, combined from content model, and answers (which are randomly selected, but It's not most important now). I've also got a config, which

getting data using jquery getJSON in ruby on rails

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问题 i am trying to get amount of a bill through getJSON method. Though i am getting the amount, i am not able to post it. The code is as follows. in the form <div class="bill"> <%= f.collection_select :customer_bill_id, CustomerBill.all,:id,:id, {:prompt => "Select Customer bill"} %></div><br /> <div class= "due"><%= f.input :bill_due_amount, :label => "Bill Due Amt.", :input_html => { :size => 20} %> </div><br /> the js jQuery(".bill select").bind("change", function() { var data = { customer

getting data using jquery getJSON in ruby on rails

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Parse JSON from local url with JQuery

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问题 I have a local url where i can retrieve a json file. I also have a simple website which is build using JQuery. I've looked up many sites for tutorials and sample code on how to retrieve the json input and parse it so i can display it on my site. However non were helpful as i still can't make it work. So as a last resort i'm going to ask stackoverflow for your help. I have a lot of java knowledge, but I'm relative new to 'web'-development and know some basics of javascript. This is a sample

Parse JSON from local url with JQuery

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$.getJSON的同步与异步请求

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$.getJSON是jQuery请求get服务的一种方式，请求成功后返回json数据。请求格式为：$.getJSON(url,data,function(result){...}); url：请求路径； data：请求参数； function函数：请求成功后执行的代码。 *$.getJSON请求分异步和同步两种方式，需要区分不同的使用场景！！！ 1.$.getJSON异步请求（默认情况都是异步的）： $.getJSON("http://localhost/WCFService/FOnwipRes.svc/GetDMDXDeviceList", {"OrgId":118}, function(data){ var data = eval("(" + data + ")"); var DMDXData = eval("(" + data.Data + ")"); )}; 但是，有时候这种方式并不可行~~ 例如，在点击事件中，点击触发后发送请求，再把返回的数据进行处理。会出现请求未响应完成，后面的代码已经在对请求结果进行处理，出现对象未定义的异常。代码演示：弹出框使用的是 layer.js 来实现 //触发点击事件，弹出信息 function getDMDXInfo(e) { var DMDXDataNew = ""; //json返回数据 var DMDX =""; /

How do I set the correct json headers?

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问题 Is there a way in htaccess to ensure the headers for my json are correct? Update: Does anyone see anything wrong with these headers for json? Date Mon, 26 Jul 2010 08:31:11 GMT Server Apache/2.2.15 (Unix) mod_ssl/2.2.15 OpenSSL/0.9.7a mod_fcgid/2.3.5 Phusion_Passenger/2.2.15 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 X-Powered-By PHP/5.2.13 X-Pingback http://brettbarros.com/wordpress/xmlrpc.php Content-Disposition attachment; filename="json_api.json" Vary Accept-Encoding

How to store JSON data into JavaScript table format?

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问题 I am developing a web application and I use jQuery 1.5 and JavaScript for the main functionality of the app. I connect from my app to a RESTful interface where I GET information for a person. I use this function to retrieve the information from the json page: var jqxhr = $.getJSON("example.json", function() { // store the data in a table } My data in json format are like but I will get as a result more than one persons having the format of: [{"person":{"time":"2010-02-18T17:59:44","id":1,

jQuery.getJSON: how to avoid requesting the json-file on every refresh? (caching)

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问题 in this example you can see a generated HTML-list. On every refresh the script requests the data-file (ajax/test.json) and builds the list again. The generated file "ajax/test.json" is cached statically. But how can I avoid requesting this file on every refresh? // source: jquery.com $.getJSON('ajax/test.json', function(data) { var items = []; $.each(data, function(key, val) { items.push('<li id="' + key + '">' + val + '</li>'); }); $('<ul/>', { 'class': 'my-new-list', html: items. })

How do I add items to an array in jQuery?

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问题 var list = []; $.getJSON("json.js", function(data) { $.each(data, function(i, item) { console.log(item.text); list.push(item.text); }); }); console.log(list.length); list.length always returns 0. I've browsed the JSON in firebug and it's well formed and everything looks fine. I just can't seem to add an item to the array what am I missing? 回答1: Since $.getJSON is async, I think your console.log(list.length); code is firing before your array has been populated. To correct this put your console