如何调用Android中的Restful web服务

任何人都可以帮助我如何将认证详细信息POST到宁静的Web服务并获取响应。我必须张贴用户名，IsAuthenticated（即真或假），密码。也请解释url编码方法。我已经在下面显示了我的代码。我是Android的初学者。如何调用Android中的Restful web服务

public class LoginActivity extends Activity 
{ 
    String Username; 
    String Password; 
    String IsAuthenticated; 
    String answer; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.main); 
      try { 
       POST(Username,Password,IsAuthenticated); 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
     } 


    public String POST(String Username, String IsAuthenticated, String Password) { 
     String Returned = null; 
      HttpClient httpclient = new DefaultHttpClient(); 
      HttpPost httppost = new HttpPost("http://......./Authenticate"); 

      try { 
      List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2); 
      // Your DATA 
      nameValuePairs.add(new BasicNameValuePair("UserName", "Username")); 
      nameValuePairs.add(new BasicNameValuePair("IsAuthenticated", "false")); 
      nameValuePairs.add(new BasicNameValuePair("Password", "Password")); 

      httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs, HTTP.UTF_8)); 
      HttpResponse response = httpclient.execute(httppost); 
      HttpEntity resEntity = response.getEntity(); 
      Returned = EntityUtils.toString(resEntity); 

      System.out.println(Returned); 
      Toast.makeText(this, Returned, Toast.LENGTH_LONG).show(); 
      } catch (ClientProtocolException e) { 
      Toast.makeText(this, "There was an issue Try again later", Toast.LENGTH_LONG).show(); 
      } catch (IOException e) { 
      Toast.makeText(this, "There was an IO issue Try again later", Toast.LENGTH_LONG).show(); 
      e.printStackTrace(); 
      } 

      return Returned; 
     } 
}

来源

2011-02-16 Dray

您的POST方法看起来不错。你有什么错误吗？但是，您应该在单独的线程中执行网络活动。请参阅[无痛线程]（http://developer.android.com/resources/articles/painless-threading.html）和[AsyncTask]（http://developer.android.com/reference/android/os/AsyncTask.html ）。 – basilisk 2011-02-17 11:29:59

嗨basilisk，我遇到麻烦是编码我的登录参数与URL.If我克服达，我会获得输出。有什么建议么？？？ – Dray 2011-02-17 11:54:23

我终于得到了答案，并为我工作得很好......我已经发布了下面的工作代码。

public class LoginActivity extends Activity 
{ 
    String Returned; 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.main); 

      try { 
       HttpClient httpclient = new DefaultHttpClient(); 
       HttpPost post = new HttpPost("http://Your url here/"); 
       StringEntity str = new StringEntity("Your xml code"); 
       str.setContentType("application/xml; charset=utf-8"); 
       str.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/xml; charset=utf-8")); 
       post.setEntity(str); 
       HttpResponse response = httpclient.execute(post); 
       HttpEntity entity = response.getEntity(); 
       Returned = EntityUtils.toString(entity); 
       Toast.makeText(this, Returned, Toast.LENGTH_LONG).show(); 
      } catch (IOException ioe) { 
      ioe.printStackTrace(); 
      } 
      } 
}

非常感谢您的回复。

来源

2011-08-23 05:33:08 Dray

如何调用Android中的Restful web服务

回答

相关问题