jsonp

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: The following code is derived from an existing Knockout jsfiddle which does not work now, mostly due to being out of date with current versions of knockout and jquery. I found this fiddle listed as an example on the Knockout GitHub wiki recipes link: https://github.com/knockout/knockout/wiki/Asynchronous-Dependent-Observables . The fiddle in this link does not work, even after I did some updating of the code. I am weak on the Ajax call and need help with understanding why this does not work. The original fiddle is listed in the link http: /

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: When i am trying to inject Jsonp, i am seeing this error Exception: Call to Node module failed with error: Error: Uncaught (in promise): Error: No provider for ConnectionBackend! Error: No provider for ConnectionBackend! at Error (native) My home.component.ts file import { NgModule, Component, Injectable } from '@angular/core'; import { HttpModule, JsonpModule, Jsonp, Response, URLSearchParams, Headers, RequestOptions } from '@angular/http'; @Component({ selector: 'home', templateUrl: './home.component.html', providers: [HttpModule,

I'm trying to bind values in a GET request to a POJO. The values are parameters in a HTTP GET request. I'm using JSONP to pass the parameters however it looks like JSONP pushes the JSON object up onto the Request line so its not really a JSON object which is being sent but instead just name value pairs on the URL. Is it possible to map the values in my GET request to a POJO? Jersey gives the following exception when i try binding A HTTP GET method, public void handleJSONP(MyPojo), should not consume any entity. The binding code is looking in the request body however it doesnt exist because it

前言 想要比较清楚的研究一个东西,并不是说背下它的定义和几个公式就完事了.所以对于JSON的解释我也没有兴趣再COPY一遍它的英文全称和完整命名,大家都知道它是一种数据交换格式,平时也就是当作一种数据类型那么用了,这一点问题都没有,本文只是在了解它的基本概念和前提上稍微深入一下. 正文 1. JSON格式 2001年为了取代繁琐而笨重的XML格式,JSON作为一种轻量级的数据交换格式被提出,作为1999年ECMA-262的一个子集.一经提出JSON就迅速的在Web应用上普及开来,因为相比于XML, JSON书写十分简单方便阅读,同时因为是Javascript的子集所以符合JS的原生语法,可以被解释引擎直接处理. 数据格式存在的目的是以一定的形式存储数据,简单说,JSON格式就是一种表示一系列"值"的方法,这些"值"存在于数组或者对象当中. JSON虽然可以存储值,但是也要遵守一定的规则,当然结构的核心就是"key/vlaue". Object - 对象是一个无序的"key/value"集合. Array - 数组是值的有序集合. Value - 值可以是双引号括起来的string,number,true,false,null,object,array,这些结构还可以嵌套使用. String - 被双引号包围的任意Unicode字符集合. Number -

I want to get live currency rates from an external source, so I found this great webservice: Currency Convertor This service is working like a charm, the only downside is that it does not provide JSONP results, only XML. Therefore we have a cross browser problem while trying to consume this webservice using jQuery $.ajax(). So I found Yahoo Query Language which returns results as JSONP and also mangae to consume other webservices and return me the results. This is also working, here is an example URL: http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20xml%20where%20url%3D'http%3A

I'm trying to get some information from a different domain, the domain allows only jsonp call - others get rejected. How can I get the content instead of execution? Because I get an error in response. I don't need to execute it, I just need it in my script. In any format (the response is json but js doesn't understand it). I can't affect on that domain so it's impossible to change something on that side. Here's my code: $.ajax({ url: url + '?callback=?', crossDomain: true, type: "POST", data: {key: key}, contentType: "application/json; charset=utf-8;", async: false, dataType: 'jsonp', jsonp:

什么是跨域 js跨域 是指通过js在不同的域之间进行数据传输或通信，比如用ajax向一个不同的域请求数据，或者通过js获取页面中不同域的框架中(iframe)的数据。只要协议、域名、端口有任何一个不同，都被当作是不同的域。 由于浏览器的同源策略 浏览器的同源策略会导致跨域，这里同源策略又分为以下两种 DOM同源策略：禁止对不同源页面DOM进行操作。这里主要场景是iframe跨域的情况，不同域名的iframe是限制互相访问的。 XmlHttpRequest同源策略：禁止使用XHR对象向不同源的服务器地址发起HTTP请求 为什么要有跨域限制 了解完跨域之后，想必大家都会有这么一个思考，为什么要有跨域的限制，浏览器这么做是出于何种原因呢。其实仔细想一想就会明白，跨域限制主要是为了安全考虑。 AJAX同源策略主要用来防止CSRF攻击。如果没有AJAX同源策略，相当危险，我们发起的每一次HTTP请求都会带上请求地址对应的cookie，那么可以做如下攻击： 用户登录了自己的银行页面 http://mybank.com ， http://mybank.com 向用户的cookie中添加用户标识。 用户浏览了恶意页面 http://evil.com 。执行了页面中的恶意AJAX请求代码。 http://evil.com 向 http://mybank.com 发起AJAX HTTP请求