在服务器端，Silverlight，DBC等的SharePoint Intranet上处理跨域的最佳方式 [英] Best way to handle Cross Domain on SharePoint Intranet w/o server side, silverlight, DBC etc

问题描述

我在Microsoft内部SharePoint网站上工作，我需要从跨网域SharePoint网站中提取列表数据。

I'm working on a Microsoft internal SharePoint site, and I need to pull in List data from a cross domain SharePoint site.

我不想使用Silverlight，因为各种原因，并且现在不可能实现业务数据连接。

I don't want to use Silverlight, for various reasons, and Business Data Connectivity is not possible right now.

有没有简单的方法使用JavaScript或类似的东西来完成这个？ p>

Is there a simple way to use JavaScript or something like it to accomplish this?

推荐答案

简单？不完全是。根据您的要求，特别是 w / o服务器端，这是不可能的。

"Simple?" Not exactly. Given your requirements, particularly "w/o server side," this isn't possible.

您有几个启用跨网域请求的选项。

However, if you can forego that requirement, you have a few options for enabling cross-domain requests.

有体面支持，用于跨源资源共享 XMLHttpRequest 和Microsoft的 XDomainRequest 。但是，这将要求远程服务器在响应中包含适当的标头，以允许您的源/域提出请求。

There's decent support for Cross-Origin Resource Sharing for XMLHttpRequest and Microsoft's XDomainRequest. Though, this will require that the remote server include the proper headers in the response to allow your origin/domain to make the request.

<% Response.AddHeader("Access-Control-Allow-Origin", "*") %>

JSONP

a href =http://en.wikipedia.org/wiki/JSONP> JSONP ，它会在< script> 中加载资源 callback 参数与全局函数的名称。由于JSON基于JavaScript文字，因此不会有相同的浏览器支持问题，但是远程服务器必须知道如何构造输出，并且限于 GET 请求。

JSONP

A common option is JSONP, which loads the resource in a <script> with a callback parameter with the name of a global function. Since JSON is based on JavaScript literals, this won't have the same browser-support issues, but the remote server will have to know how to construct the output and it's limited to GET requests.

// <script src="http://other.dom/resource?callback=loadResource"></script>

loadResource( [ {"id": 1, "name": "foo"}, {"id": 2, "name": "bar"} ] );

服务器端代理

您请求的远程服务器无法（或不会）调整为支持跨域请求，您几乎可以在服务器上创建服务器端代理。

Server-side Proxy

If the remote server you're requesting from can't (or won't) be adjusted to support cross-domain requests, you're pretty much left with making a Server-Side Proxy on your server.

一般模式在 AjaxPatters.org 中介绍，并且可以找到许多.NET实现，包括 John Chapman的和跨域Proxy 专案。

The general pattern is described at AjaxPatters.org and a number of .NET implementations can be found, including John Chapman's and the Cross-Domain Proxy project.

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