1跨域验证

1. <?xml version="1.0" encoding="utf-8"?> 
2. <access-policy> 
3. <cross-domain-access> 
4. <policy> 
5. <allow-from http-request-headers="*"> 
6. <domain uri="*"/> 
7. </allow-from> 
8. <grant-to> 
9. <resource path="/" include-subpaths="true"/> 
10. </grant-to> 
11. </policy> 
12. </cross-domain-access> 
13. </access-policy> 

2与数据源连接
1 SOAP services

服务端
新建一个asmx 得到

1. [WebService(Namespace = "http://xxxx.net/")] 
2.    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] 
3.    [System.ComponentModel.ToolboxItem(false)] 
4.    public class SampleAsmx : System.Web.Services.WebService 
5.    { 
6.  
7.        [WebMethod] 
8.        public string GetCoolText(int number) 
9.        { 
10.            switch (number) 
11.            { 
12.                case 0: return "zero"; 
13.                case 1: return "one";      
14.  
15.                default: return "unknown"; 
16.  
17.            } 
18.  
19.        } 

客户端

1. private void GetString_Click(object sender, RoutedEventArgs e) { 
2.           Binding myBinding = new BasicHttpBinding(); 
3.           EndpointAddress myEndpoint = new 
4.             EndpointAddress("http://localhost:55905/SampleAsmx.asmx"); 
5.  
6.           SilverService.SampleAsmxSoapClient proxy = new 
7.             SilverService.SampleAsmxSoapClient(myBinding, myEndpoint); 
8.  
9.           proxy.GetCoolTextCompleted += proxy_GetCoolTextCompleted; 
10.  
11.           proxy.GetCoolTextAsync(1); 
12.       } 
13.       void proxy_GetCoolTextCompleted(object sender, 
14.         SilverService.GetCoolTextCompletedEventArgs e) { 
15.           Results.Text = e.Result; 
16.           (sender as SilverService.SampleAsmxSoapClient).CloseAsync(); 
17.       } 

客户端的config

1. <configuration> 
2.     <system.serviceModel> 
3.         <bindings> 
4.             <basicHttpBinding> 
5.                 <binding name="SampleAsmxSoap" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647"> 
6.                     <security mode="None" /> 
7.                 </binding> 
8.             </basicHttpBinding> 
9.         </bindings> 
10.         <client> 
11.             <endpoint address="http://localhost:55905/SampleAsmx.asmx" binding="basicHttpBinding" 
12.                 bindingConfiguration="SampleAsmxSoap" contract="SilverService.SampleAsmxSoap" 
13.                 name="SampleAsmxSoap" /> 
14.         </client> 
15.     </system.serviceModel> 
16. </configuration> 

这里会涉及到一堆WCF 的知识。可能需要你额外去学习。

2 RESTful Sercvices

从RESTFUL的services上获取信息

1. private void GetSingleXml_Click(object sender, RoutedEventArgs e) 
2. { 
3. UIThread = SynchronizationContext.Current; 
4. string rawPath 
5. = "http://www.silverlightinaction.com/Authors.svc/SingleXml/{0}"; 
6. Uri path = new Uri(string.Format(rawPath, Input.Text), 
7. UriKind.Absolute); 
8. HttpWebRequest request = (HttpWebRequest)WebRequest.Create(path); 
9. request.BeginGetResponse(SingleXmlCallBack, request); 
10. } 
11. private void SingleXmlCallBack(IAsyncResult result) 
12. { 
13. HttpWebRequest request = (HttpWebRequest)result.AsyncState; 
14. HttpWebResponse response 
15. = (HttpWebResponse)request.EndGetResponse(result); 
16. Stream responseStream = response.GetResponseStream(); 
17. UIThread.Post(UpdateUiText, responseStream); 
18. } 
19.  
20. 发送信息过去 
21.  
22. private void Test_Click(object sender, RoutedEventArgs e) 
23. { 
24. UIThread = SynchronizationContext.Current; 
25. Uri path = new 
26. Uri("http://www.silverlightinaction.com/Authors.svc/Update/Brown", 
27. UriKind.Absolute); 
28. HttpWebRequest request = (HttpWebRequest)WebRequest.Create(path); 
29. request.Method = "POST"; 
30. request.ContentType = "application/xml"; 
31. request.BeginGetRequestStream(AddPayload, request); 
32. } 
33. private void AddPayload(IAsyncResult result) 
34. { 
35. HttpWebRequest request = (HttpWebRequest) result.AsyncState; 
36. StreamWriter dataWriter = 
37. new StreamWriter(request.EndGetRequestStream(result)); 
38. dataWriter.Write("<?xml version=\"1.0\"?><Author><FirstName>Bob" + 
39. "</FirstName><LastName>Smith</LastName></Author>"); 
40. dataWriter.Close(); 
41. request.BeginGetResponse(SingleJsonCallBack, request); 
42. } 
43. private void SingleJsonCallBack(IAsyncResult result) 
44. { 
45. HttpWebRequest request = (HttpWebRequest)result.AsyncState; 
46. HttpWebResponse response = 
47. (HttpWebResponse)request.EndGetResponse(result); 
48. Stream responseStream = response.GetResponseStream(); 
49. UIThread.Post(UpdateUiText, responseStream); 

3HTTP方式

1手动构造

使用System.Net.Browser.WebRequestCreator 来构造。

1. HttpWebRequest  类 
2.  
3. HttpWebRequest request = 
4. (HttpWebRequest)WebRequestCreator.ClientHttp.Create( 
5. new Uri("http://api.10rem.net/Authors")); 
6. request.Method = "PUT"; 

2为特定的网站或协议自动使用client stack

如为某个网站 HTTP 和 SSL都使用 client stack 你可以这么写

为指定的 URI 注册 WebRequest 子代。

1. WebRequest.RegisterPrefix( 
2. http://www.baidu.com, WebRequestCreator.ClientHttp); 
3. WebRequest.RegisterPrefix( 
4. "https://www.baidu.com", WebRequestCreator.ClientHttp); 

3Authentication credentials

The client networking stack supports NTLM, basic, and digest authorization

NTLM是NT LAN Manager的缩写，这也说明了协议的来源。NTLM 是 Windows NT 早期版本的标准安全协议，Windows 2000 支持 NTLM 是为了保持向后兼容。Windows 2000内置三种基本安全协议之一。

在网络环境中，NTLM 用作身份验证协议以处理两台计算机（其中至少有一台计算机运行 Windows NT 4.0 或更早版本）之间的事务。具有此配置的网络称为“混合模式”，这是 Windows Server 2003 家族中的默认设置

参考

http://www.codeproject.com/KB/aspnet/ASPDOTNETauthentication.aspx

http://social.msdn.microsoft.com/Forums/zh-SG/sqldataaccess/thread/c60a86f0-cda5-47b4-8448-0c5730084896

实现 digest authorization

1. private void SendRequest() 
2. { 
3. HttpWebRequest.RegisterPrefix( 
4. "http://", WebRequestCreator.ClientHttp); 
5. HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create( 
6. new Uri("http://XX.net")); 
7. req.UseDefaultCredentials = false; 
8. req.Credentials = 
9. new NetworkCredential("Pete", "password");//任意多参数 
10. req.BeginGetResponse(OnRequestCompleted, req); 
11. } 
12. private void OnRequestCompleted(IAsyncResult asyncResult) 
13. { 
14. HttpWebRequest request = 
15. (HttpWebRequest)asyncResult.AsyncState; 
16. HttpWebResponse response = 
17. (HttpWebResponse)request.EndGetResponse(asyncResult); 
18. ................ 
19.  
20. } 

4使用cookies

1. private void SendRequest() 
2. { 
3. WebRequest.RegisterPrefix( 
4. "http://", WebRequestCreator.ClientHttp); 
5. WebRequest.RegisterPrefix( 
6. "https://", WebRequestCreator.ClientHttp); 
7.  
8.  
9. HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create( 
10. new Uri("http://baidu.com")); 
11. CookieCollection cookies = new CookieCollection(); 
12. cookies.Add(new Cookie("firstName", "Pete")); 
13. cookies.Add(new Cookie("lastName", "Brown")); 
14. cookies.Add(new Cookie("lastAccess", DateTime.Now.ToString())); 
15. req.CookieContainer = new CookieContainer(); 
16. req.CookieContainer.Add( 
17. new Uri("http://baidu.com"), cookies); 
18. req.BeginGetResponse(OnRequestCompleted, req); 
19. } 
20. private void OnRequestCompleted(IAsyncResult asyncResult) 
21. { 
22. HttpWebRequest req = 
23. (HttpWebRequest)asyncResult.AsyncState; 
24. HttpWebResponse response = 
25. (HttpWebResponse)req.EndGetResponse(asyncResult); 
26. ... 
27. foreach (Cookie cookie in response.Cookies) 
28. { 
29. Debug.WriteLine(cookie.Name + ":" + cookie.Value); 
30. } 
31. }