Web服务从Web方法获取字符串数据时出现问题

问题描述：

嗨！

我已经创建了一个Web服务，我想从ajax帖子发送ID并想要获取
名称作为Web服务的响应.但是我出错了.当debugg发出成功命令时

Hi!

I have created a web service, I want to send id from ajax post and want to get the
name as response from web service. But I am getting error. when debugg goes on success command

 <script type="text/javascript">
    function callme()
    {
    var postData ={'id':'4'};
    var pdataJSON=JSON.stringify(postData);
          $.ajax({
            type: 'POST',
            contentType: 'application/json',
            url: '/JSON/WebService.asmx/GetName',
            dataType: "json",
            data:pdataJSON,
            success: function(responseText){
                alert(data.responseText);
            },
            error: function(jqXHR, textStatus, errorThrown){
                alert(jqXHR, textStatus, errorThrown);
            }
        });
}
    </script>

以下是网络服务

Following is a web service

[WebMethod]
   public string GetName(Int32 id)
   {
       var result = from p in obj.tblPersons
                    where p.id == id
                    select p;
       return result.First().name;

   }

请帮助我

please help me

答

.ajax({ 类型:' POST'， contentType:' application/json'，网址:' /JSON/WebService.asmx/GetName'， dataType:" ，数据:pdataJSON，成功:功能(responseText){ alert(data.responseText); }，错误:函数(jqXHR，textStatus，errorThrown){ alert(jqXHR，textStatus，errorThrown); } }); } </script>

.ajax({ type: 'POST', contentType: 'application/json', url: '/JSON/WebService.asmx/GetName', dataType: "json", data:pdataJSON, success: function(responseText){ alert(data.responseText); }, error: function(jqXHR, textStatus, errorThrown){ alert(jqXHR, textStatus, errorThrown); } }); } </script>

以下是网络服务

Following is a web service

[WebMethod]
   public string GetName(Int32 id)
   {
       var result = from p in obj.tblPersons
                    where p.id == id
                    select p;
       return result.First().name;

   }

请帮助我

please help me

webmethod接收参数的类型必须是object.因为您要从脚本发送的json对象不是整数.

The webmethod receiving parameter type must be object. because you are sending json object from script not an integer.

[WebMethod]
   public string GetName(Object id)
   {
       var result = from p in obj.tblPersons
                    where p.id == id
                    select p;
       return result.First().name;

   }

请检查一次您的代码.

please check your code once. it may helps you.

选中此链接，可能会对您有帮助.

将JSON对象传递给WCF服务 [

Check this link, it may helps you.

pass JSON object to WCF service[^]

Web服务从Web方法获取字符串数据时出现问题

相关推荐