解决AJAX跨域WCF的问题
公司做的网站H5和后台分离的,只调用接口,必须解决H5跨域问题。
网上百度没有很详细的, 带附件的帖子在自己这永远运行不起来很头疼,然后看到一篇帖子,说的还算清楚,但是不怎么详细。
本次事列使用VS2015 Framework4.5.2 演示
首先我们新建一个项目,常规的wcf项目
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新建完后是这样,点开Service1.svc
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在实现类上加入下面三句,如图
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] [JavascriptCallbackBehavior(UrlParameterName = "jsoncallback")] [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
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在进入接口类,在要实现跨域的Action上加入下面这句
[WebInvoke(Method = "GET", BodyStyle = WebMessageBodyStyle.WrappedRequest, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
右键项目新建一个项,全局Global.asax
每次访问都会经过的一个全局控制器
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双击进去,找到Application_BeginRequest方法添加如下
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*"); if (HttpContext.Current.Request.HttpMethod != "OPTIONS") return; HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST"); HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Accept"); HttpContext.Current.Response.AddHeader("Access-Control-Max-Age", "1728000"); HttpContext.Current.Response.End();
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最后最重要的一步,我们双击项目的web.config 看图吧 博客园显示图下可以右键另存为,查看大图
两端配置 <!--ajax跨域配置--> <endpointBehaviors> <behavior name="AjaxServiceAspNetAjaxBehavior"> <enableWebScript /> </behavior> </endpointBehaviors> <!--ajax跨域配置-->
<!--ajax跨域配置-->
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> <services> <service name="RivValleyService.RValleyService"> <endpoint address="" behaviorConfiguration="AjaxServiceAspNetAjaxBehavior" binding="webHttpBinding" bindingConfiguration="HttpJsonBinding" contract="RivValleyService.IRValleyService" /> </service> </services> <bindings>
<!--ajax跨域配置-->
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然后我双击Service1运行起来服务 运行成功如下
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前台调用,输入你的IP和端口 url一定要对, 方法名GetData后要接上 ?jsoncallback=? 否则将无法跨域
$.ajax({
url: "http://localhost:55147/RValleyService.svc/GetData?jsoncallback=?",
type: "get",
data:{value:111},
dataType: "jsonp",
success: function (data) {
alert(data);
}
});
});
OK
到这就结束了~
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