Ajax 调用webservice 解决跨域请求和发布到服务器后本地调用成功外网失败的问题

 1     /// <summary>
 2     /// MESService 的摘要说明
 3     /// </summary>
 4     [WebService(Namespace = "http://tempuri.org/")]
 5     [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
 6     //[System.ComponentModel.ToolboxItem(false)]
 7     // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消注释以下行。 
 8     [System.Web.Script.Services.ScriptService]
 9     public class MESService : System.Web.Services.WebService
10     {
11 
12         [WebMethod(Description = "")]
13         public string GetDataReturnStr(string strXML)
14         {
15             //你的结果处理
16             #region 处理数据
17 
18             #endregion
19             return Common.JsonHelper.SerializeToJson(new Student() { id = "1", name = "测试" });
20         }
21 
22        
23     }
24     [Serializable]
25     public class Student
26     {
27         public string id { get; set; }
28         public string name { get; set; }
29     }

<system.webServer>
    <!--解决跨域请求 -->
    <httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Methods" value="OPTIONS,POST,GET" />
        <add name="Access-Control-Allow-Headers" value="x-requested-with,content-type" />
        <add name="Access-Control-Allow-Origin" value="*" />
      </customHeaders>
    </httpProtocol>
</system.webServer>

<system.web>
    <webServices>
      <protocols>
        <add name="HttpSoap"/>
        <add name="HttpPost"/>
        <add name="HttpGet"/>
        <add name="Documentation"/>
      </protocols>
    </webServices>
</system.web>

 1 $.ajax({
 2                 async: true,
 3                 type: "post",
 4                 url: "http://localhost:41453/IDataServer/MESService.asmx/GetDataReturnStr",
 5                 data: "{strXML:‘123123123‘}",
 6                 dataType: "json",
 7                 contentType: "application/json; charset=utf-8",
 8                 success: function (json) {
 9                     var dataObj = eval("(" + json.d + ")");
10                     alert(dataObj.id + ‘\r\n‘ + dataObj.name);
11                 },
12                 error: function () {
13 
14                 },
15                 complete: function () {
16                 }
17             });