javascript 在没有服务器端、silverlight、DBC 等的 SharePoint Intranet 上处理跨域的最佳方法
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Best way to handle Cross Domain on SharePoint Intranet w/o server side, silverlight, DBC etc
提问by Wesley
I'm working on a Microsoft internal SharePoint site, and I need to pull in List data from a cross domain SharePoint site.
我在 Microsoft 内部 SharePoint 站点上工作，我需要从跨域 SharePoint 站点中提取列表数据。
I don't want to use Silverlight, for various reasons, and Business Data Connectivity is not possible right now.
由于各种原因，我不想使用 Silverlight，而且目前无法进行业务数据连接。
Is there a simple way to use JavaScript or something like it to accomplish this?
有没有一种简单的方法可以使用 JavaScript 或类似的东西来实现这一点？
回答by Jonathan Lonowski
"Simple?" Not exactly. Given your requirements, particularly "w/o server side," this isn't possible.
“简单吗？” 不完全是。鉴于您的要求，特别是“无服务器端”，这是不可能的。
However, if you can forego that requirement, you have a few options for enabling cross-domain requests.
但是，如果您可以放弃该要求，那么您有几个选项可以启用跨域请求。
CORS
CORS
There's decent supportfor Cross-Origin Resource Sharingfor XMLHttpRequestand 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.
有体面的支持，为跨来源资源共享的XMLHttpRequest和微软的XDomainRequest。但是，这将要求远程服务器在响应中包含正确的标头，以允许您的源/域发出请求。
<% Response.AddHeader("Access-Control-Allow-Origin", "*") %>
JSONP
JSONP
A common option is JSONP, which loads the resource in a <script>with a callbackparameter 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 GETrequests.
一个常见的选项是JSONP，它将资源加载到<script>带有callback全局函数名称的参数中。由于 JSON 基于 JavaScript 文字，因此不会有相同的浏览器支持问题，但远程服务器必须知道如何构造输出，并且仅限于GET请求。
// <script src="http://other.dom/resource?callback=loadResource"></script>
loadResource( [ {"id": 1, "name": "foo"}, {"id": 2, "name": "bar"} ] );
Server-side Proxy
服务器端代理
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.
如果您请求的远程服务器不能（或不会）被调整为支持跨域请求，那么您几乎只能在您的服务器上创建一个服务器端代理。
The general pattern is described at AjaxPatters.organd a number of .NET implementations can be found, including John Chapman'sand the Cross-Domain Proxyproject.
AjaxPatters.org上描述了一般模式，并且可以找到许多 .NET 实现，包括John Chapman和Cross-Domain Proxy项目。
回答by Ken
You can use JQueryto get data from a SharePoint list. See this article.
