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A simple example of calling WebService across domains using js

韦小宝Original: 2017-12-30 17:53:402193browse

The following editor will bring you a simple example of js cross-domain calling WebService. The editor thinks it’s pretty good, so I’ll share the js source code with you now, and give it a reference. If you are interested in js, please follow the editor to have a look

Step 1. The system.web node in web.config Add

<!--此节点可允许脚本跨域调用webservice-->

  <webServices>
   <protocols>
    <add name="HttpPost"/>
    <add name="HttpGet"/>
   </protocols>
  </webServices>
  <!--此节点可允许脚本跨域调用webservice-->

##Step 2. webservice code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Mvc;
namespace WebService
{
  /// <summary>
  /// WebService1 的摘要说明
  /// </summary>
  [WebService(Namespace = "http://tempuri.org/")]
  [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
  [System.ComponentModel.ToolboxItem(false)]
  // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
  [System.Web.Script.Services.ScriptService]
  public class WebService1 : System.Web.Services.WebService
  {
    [ValidateInput(false)]
    [WebMethod(Description = "测试")]
    public void getDBTableInfos(string EnterpriseCode)
    {
      HttpContext.Current.Response.ContentType = "application/json;charset=utf-8";
      string jsonCallBackFunName = string.Empty;
      jsonCallBackFunName = HttpContext.Current.Request.Params["jsoncallback"].ToString();
      HttpContext.Current.Response.Write(jsonCallBackFunName + "({ \"Result\": \"" + EnterpriseCode + "\" })");
    } 
  }
}

Step 3. html page section

<!DOCTYPE html>
<html>
<head>
  <title>Index</title>
  <script src="http://www.cnblogs.com/Scripts/jquery-1.5.1.js" type="text/javascript"></script>
  <script type="text/javascript">
    $(function () {
      $("#btnSubmit").click(function () {
        var EnterpriseCode = "39"; //企业代码        
        var dataStr = "EnterpriseCode=" + EnterpriseCode;
        $.ajax({
          type: "get",
          url: "http://xxx/xxx.asmx/AntiWebQuery_Ajax?jsoncallback?",
          dataType: "jsonp",
          jsonp: &#39;jsoncallback&#39;,
          data: dataStr,
          success: function (result) {
            //返回结果
            alert(result.Result);
          }
        });
      });
    });
  </script>
</head>
<body>
  <p>
    <input id="btnSubmit" type="button" value="查询" />
  </p>
</body>
</html>

The above is the entire content of the simple example of js cross-domain calling WebService brought by the editor. I hope it will be helpful to everyone. Lots of support for PHP Chinese website~

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