How do I create JSON in ExtJS for an AJAX call?

I want to create this parameter file so that I can send it to my web service. var parms = { "quiz_id":"120", "owner_id":"1", "solver_id":"1", "answers": [ { "answer_text" : "YES", "question_id" : "1" }, { "answer_text" : "NO", "question_id" : "2" }, { "answer_text" : "YES", "question_id" : "3" }, { "answer_text" : "YES", "que

如何在ExtJS中为AJAX调用创建JSON?

我想创建这个参数文件,以便我可以将它发送到我的Web服务。 var parms = { "quiz_id":"120", "owner_id":"1", "solver_id":"1", "answers": [ { "answer_text" : "YES", "question_id" : "1" }, { "answer_text" : "NO", "question_id" : "2" }, { "answer_text" : "YES", "question_id" : "3" }, { "answer_text" : "YES", "question_id" : "4"

How can I build a json string in javascript/jquery?

I would like to build a json string programmatically. The end product should be something like: var myParamsJson = {first_name: "Bob", last_name: "Smith" }; However I would like to do it one parameter at a time. If it were an array, I would just do something like: var myParamsArray = []; myParamsArray["first_name"] = "Bob"; myParamsArray["last_name"] = "Smith"; I wouldn't even mind buil

我怎样才能在JavaScript / jQuery中建立一个json字符串?

我想以编程方式构建一个json字符串。 最终产品应该是这样的: var myParamsJson = {first_name: "Bob", last_name: "Smith" }; 不过,我想一次只做一个参数。 如果它是一个数组,我会做一些事情: var myParamsArray = []; myParamsArray["first_name"] = "Bob"; myParamsArray["last_name"] = "Smith"; 我甚至不介意构建该数组,然后转换为json。 有任何想法吗? 你可以用对象做类似的事情: var myObj = {}; myObj["f

How to convert JS Object to JSON

This question already has an answer here: Serializing an object to JSON 3 answers Quite literally, JSON is a stricter format for what is basically the right-hand side of a Javascript variable assignment. It's a text-based encoding of Javascript data: var foo = ...json goes here ...; JSON can be ANY valid Javascript data-only structure. A boolean, an int, a string, even arrays and obje

如何将JS对象转换为JSON

这个问题在这里已经有了答案: 将对象序列化为JSON 3答案 从字面上看,JSON对于基本上是Javascript变量赋值的右侧的更严格的格式。 这是一个基于文本的Javascript数据编码: var foo = ...json goes here ...; JSON可以是任何有效的Javascript数据专用结构。 一个布尔型,一个int型,一个字符串,甚至数组和对象。 JSON 不是一种通用的序列化格式。 像这样的东西 var foo = new Date(); json = JSON.stringify(foo); /

type: application/json from angular to rails

So I am trying to send a POST request with Content-Type: application/json from angular to my rails backend. I get the following error in console: angular.js:12578 OPTIONS http://localhost:3000/api/student_create 404 (Not Found) and XMLHttpRequest cannot load http://localhost:3000/api/student_create. Response to preflight request doesn't pass access control check: No 'Access-Contro

键入:application / json从angular到rails

所以我试图发送一个POST请求与Content-Type:application / json从angular到我的rails后端。 在控制台中出现以下错误: angular.js:12578选项http:// localhost:3000 / api / student_create 404(未找到) 和 XMLHttpRequest无法加载http:// localhost:3000 / api / student_create。 对预检请求的响应不会通过访问控制检查:请求的资源上不存在“访问控制 - 允许来源”标头。 原因'http:// localhost:8008&#

XMLHttpRequest/ajax set Content

I've tried both these things separately: note: url is a variable containing a https url and jsonString contains a valid json string var request = new XMLHttpRequest(); try{ request.open("POST", url); request.setRequestHeader('Accept', 'application/json'); request.send(jsonString); } catch(e) { alert(e); } and var options = { type: "POST", url: url, dataType: "

XMLHttpRequest / ajax设置内容

我已经单独尝试了这两件事情: 注意:url是一个包含https url的变量,jsonString包含一个有效的json字符串 var request = new XMLHttpRequest(); try{ request.open("POST", url); request.setRequestHeader('Accept', 'application/json'); request.send(jsonString); } catch(e) { alert(e); } 和 var options = { type: "POST", url: url, dataType: "json", data: jsonString, acce

site AJAX using jQuery

I have an existing jQuery plugin which makes a lot of AJAX calls (mostly JSON). I am wondering what is the quickest to allow it to do cross-site calls ie the $.get and $.post URL's will not be from the same domain. I have heard of JSONP, but was wondering if someone could give me an concrete example to go about the whole process. I want to make minimal changes if possible to my script. S

使用jQuery的网站AJAX

我有一个现有的jQuery插件,这使得大量的AJAX调用(主要是JSON)。 我想知道允许它进行跨站点调用的最快速度是什么,即$ .get和$ .post URL不会来自同一个域。 我听说过JSONP,但想知道是否有人可以给我一个具体的例子来说明整个过程。 如果可能的话,我想尽可能少地改动我的脚本。 我应该使用一个proxy.php的种类? 感谢您的时间。 JSONP将允许您进行跨站点调用。 查看关于这个问题的jQuery文档。 这个概念很简单:

Send a file as multipart through xmlHttpRequest

Can I send a file as multipart by XMLHttpRequest to a servlet? I am making a form and submitting it as multipart, but somehow I am not getting a response for successfully uploading it. I do not want the page to be refreshed, so it has to take place by ajax. That's only possible with XHR FormData API (previously known being part of as "XHR2" or "XHR Level 2", currently

通过xmlHttpRequest将文件作为multipart发送

我可以通过XMLHttpRequest将文件作为多部分发送到servlet吗? 我正在制作一个表单并将其作为多部分提交,但不知何故,我无法成功上传它。 我不希望页面被刷新,所以它必须由ajax进行。 这只有在XHR FormData API(以前称为“XHR2”或“XHR Level 2”,当前称为“XHR高级功能”)的一部分时才可能实现。 鉴于这个HTML, <input type="file" id="myFileField" name="myFile" /> 你可以上传它如下: var formData = new For

javascript change xml file on the server

I'm making a Design Studio custom component in Eclipse. I created a property 'backgroundColor' in my contribution.xml file. I can call this xml file inside my javascript and adjust it locally, but is there a way I can upload these changes to the server xml file again? Cause at the moment my alerts return all the new data but on the server side nothing happens. Code that i have:

javascript更改服务器上的xml文件

我正在Eclipse中制作一个Design Studio自定义组件。 我在我的contribution.xml文件中创建了一个属性'backgroundColor'。 我可以在我的JavaScript内部调用这个xml文件并在本地进行调整,但有没有办法将这些更改再次上传到服务器xml文件? 因为目前我的警报会返回所有新数据,但在服务器端没有任何反应。 代码,我有: Contribution.xml: <property id="backgroundColor" title="BackgroundCol

Why it doesnt work ? JSON, AJAX, PHP

Im total beginner at PHP, jQuery and AJAX. I try to make a simple website that sets and displays temperature limit using AJAX. I want to read from JSON file and overwrite it with new data after clicking button. Here is my index.php : <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edg

为什么它不起作用? JSON,AJAX,PHP

我总是在PHP,jQuery和AJAX的初学者。 我尝试制作一个简单的网站,使用AJAX设置和显示温度限制。 我想从JSON文件读取并在单击按钮后用新数据覆盖它。 这是我的index.php: <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initi

parsing JSONP $http.jsonp() response in angular.js

I am using angular's $http.jsonp() request which is successfully returning json wrapped in a function: var url = "http://public-api.wordpress.com/rest/v1/sites/wtmpeachtest.wordpress.com/posts?callback=jsonp_callback"; $http.jsonp(url). success(function(data, status, headers, config) { //what do I do here? }). error(function(data, status, headers, config) { $scop

在angular.js中解析JSONP $ http.jsonp()响应

我正在使用angular的$http.jsonp()请求,它成功返回包装在函数中的json: var url = "http://public-api.wordpress.com/rest/v1/sites/wtmpeachtest.wordpress.com/posts?callback=jsonp_callback"; $http.jsonp(url). success(function(data, status, headers, config) { //what do I do here? }). error(function(data, status, headers, config) { $scope.error = true; }); 如何访问/解