HttpWebRequest 调用 WebService 返回 xml

WebService:

View Code

 1 [WebService(Namespace = "http://tempuri.org/")]
 2 [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
 3 public class WebService : System.Web.Services.WebService {
 4 
 5     public WebService ()     {    }
 6 
 7     [WebMethod]
 8     public string getConnectionString()
 9     {
10         return "结果信息";  
11     }    
12 }

后台代码直接调用:

View Code

1 string url = "http://192.168.0.156:10001/WebService.asmx/getConnectionString";
2 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
3 System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse();
4 String xml=new StreamReader(response.GetResponseStream(),Encoding.UTF8).ReadToEnd();
5 XmlDocument docXml = new XmlDocument();
6 docXml.LoadXml(xml);
7 string str= docXml.ChildNodes[1].InnerText;

结果s:

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1 <?xml version="1.0" encoding="utf-8"?>
2 <string xmlns="http://tempuri.org/">结果信息</string>

注意:

如果IE访问http://192.168.0.156:10001/WebService.asmx/getConnectionString出现如下问题：
“/”应用程序中的服务器错误。因 URL 意外地以“/getConnectionString”结束，请求格式无法识别。
解决方法是：在网站的web.config下添加如下节点

View Code

1 <webServices> 
2           <protocols> 
3               <add name="HttpPost"/> 
4               <add name="HttpGet"/> 
5           </protocols> 
6 </webServices>