關於跨域問題(包括端口和域名跨域)

關於跨域問題(包括端口和域名跨域)

　　一、C#語言跨域 我估計任何語言在返回頭加這個均可以解決跨域問題　　　　

//徹底跨域設置 包括跨域名和端口
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*"); //跨域名
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "*");//跨端口
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
//HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST");容許的請求類型
var data = HttpContext.Current.Request.Form["data"].ToString();
HttpContext.Current.Response.ContentType = "text/plain";
HttpContext.Current.Response.Write(data);

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　　二、PHP跨域 同一個思想

<?php
$data = $_POST["data"];
//徹底跨域設置 包括跨域名和端口
header("Access-Control-Allow-Origin:*"); //跨域名
header("Access-Control-Allow-Headers:*"); //跨端口
header("Access-Control-Allow-Methods:GET, POST, PUT, DELETE, OPTIONS"); //容許的請求類型
header('Content-Type:text/plain');
echo $data;

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　　三、webApi跨域訪問

       /// <summary>
        /// 跨域解決
        /// </summary>
        /// <param name="httpResponseMessage"></param>
        /// <returns></returns>
        protected HttpResponseMessage crossDomain(HttpResponseMessage httpResponseMessage)
        {
            httpResponseMessage.Headers.Add("Access-Control-Allow-Origin", "*");
            httpResponseMessage.Headers.Add("Access-Control-Allow-Headers", "*");
            httpResponseMessage.Headers.Add("Access-Control-Allow-Methods", "GET, POST");
            return httpResponseMessage;

        }

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　　或者在Web.config配置自動發送默認請求頭 在<system.webServer>  </system.webServer>之間

  <system.webServer>

    <!--跨域配置-->
    <httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Origin" value="*" />
        <add name="Access-Control-Allow-Headers" value="*" />
        <add name="Access-Control-Allow-Methods" value="GET, POST" />
      </customHeaders>
    </httpProtocol>
    <!--跨域配置-->

 

ajax跨域只要在返回頭加上這三就OK了

Access-Control-Allow-Origin:*
Access-Control-Allow-Headers:*
Access-Control-Allow-Methods:GET, POST, PUT, DELETE, OPTIONS