Android中连接服务器

在开发Android项目的时候需要连接各种类型的服务器：J2EE、Webservice、Socket等，令人头疼的是最近做的一个项目，服务器竟然是用C语言写的。经过测试，一种连接方法不能成功连接多种服务器，针对这种情况，笔者整理了各种链接方法，大家自己选用合适的方法。

1、URL方法：

1. public class MyURLActivity extends Activity {  
2.   
3.     @Override  
4.     protected void onCreate(Bundle savedInstanceState) {  
5.         super.onCreate(savedInstanceState);  
6.         Thread thread = new Thread(new Runnable() {  
7.             @Override  
8.             public void run() {  
9.                 URL url;  
10.                 String temp;  
11.                 StringBuffer sb = new StringBuffer();  
12.                 try {  
13.                     url = new URL("http://192.168.18.157?name=allen");// 根据自己的服务器地址填写  
14.                     BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));// 获取输入流  
15.                     while ((temp = in.readLine()) != null) {  
16.                         sb.append(temp);  
17.                     }  
18.                     System.out.println(sb.toString());  
19.                     in.close();  
20.                 } catch (MalformedURLException me) {  
21.                     System.err.println("你输入的URL格式有问题！");  
22.                     me.printStackTrace();  
23.                 } catch (IOException e) {  
24.                     e.printStackTrace();  
25.                 }  
26.             }  
27.         });  
28.         thread.start();  
29.     }  
30. }  

public class MyURLActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);Thread thread = new Thread(new Runnable() {@Overridepublic void run() {URL url;String temp;StringBuffer sb = new StringBuffer();try {url = new URL("http://192.168.18.157?name=allen");// 根据自己的服务器地址填写BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));// 获取输入流while ((temp = in.readLine()) != null) {sb.append(temp);}System.out.println(sb.toString());in.close();} catch (MalformedURLException me) {System.err.println("你输入的URL格式有问题！");me.printStackTrace();} catch (IOException e) {e.printStackTrace();}}});thread.start();}}

2、HttpClient方法：

1. public class MyHttpClientActivity extends Activity {  
2.     @Override  
3.     protected void onCreate(Bundle savedInstanceState) {  
4.         super.onCreate(savedInstanceState);  
5.         Thread thread = new Thread(new Runnable() {  
6.             @Override  
7.             public void run() {  
8.                 HttpClient client = new DefaultHttpClient();  
9.                 HttpGet httpGet = new HttpGet("http://192.168.18.157?name=allen");// 根据自己的服务器地址填写  
10.                 try {  
11.                     HttpResponse response = client.execute(httpGet);  
12.                     String temp;  
13.                     StringBuffer sb = new StringBuffer();  
14.                     BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));// 获取输入流  
15.                     while ((temp = in.readLine()) != null) {  
16.                         sb.append(temp);  
17.                     }  
18.                     System.out.println(sb.toString());  
19.                     in.close();  
20.                 } catch (ClientProtocolException e) {  
21.                     e.printStackTrace();  
22.                 } catch (IOException e) {  
23.                     e.printStackTrace();  
24.                 }  
25.             }  
26.         });  
27.         thread.start();  
28.     }  
29. }  

public class MyHttpClientActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);Thread thread = new Thread(new Runnable() {@Overridepublic void run() {HttpClient client = new DefaultHttpClient();HttpGet httpGet = new HttpGet("http://192.168.18.157?name=allen");// 根据自己的服务器地址填写try {HttpResponse response = client.execute(httpGet);String temp;StringBuffer sb = new StringBuffer();BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));// 获取输入流while ((temp = in.readLine()) != null) {sb.append(temp);}System.out.println(sb.toString());in.close();} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}});thread.start();}}

3、HttpURLConnection方法：

1. public class MyHttpURLConnectionActivity extends Activity {  
2.   
3.     @Override  
4.     protected void onCreate(Bundle savedInstanceState) {  
5.         super.onCreate(savedInstanceState);  
6.         Thread thread = new Thread(new Runnable() {  
7.             @Override  
8.             public void run() {  
9.                 BufferedReader bufferedReader = null;  
10.                 try {  
11.                     URL url = new URL("http://192.168.18.157");// 根据自己的服务器地址填写  
12.                     HttpURLConnection conn = (HttpURLConnection) url.openConnection();  
13.                     conn.setConnectTimeout(10000);  
14.                     conn.setDoOutput(true);// 允许输出  
15.                     conn.setRequestMethod("POST");  
16.                     conn.setRequestProperty("Connection", "Keep-Alive");  
17.                     conn.setRequestProperty("Charset", "GBK");  
18.                     OutputStream os = conn.getOutputStream();  
19.                     os.write("name=allen".getBytes());  
20.                     if (conn.getResponseCode() == 200) {  
21.                         System.out.println(conn.toString());  
22.                         InputStream is = conn.getInputStream();  
23.                         InputStreamReader isr = new InputStreamReader(is, "GBK");  
24.                         bufferedReader = new BufferedReader(isr);  
25.                     }  
26.                     String result = "";  
27.                     String line = "";  
28.                     if (bufferedReader != null) {  
29.                         try {  
30.                             while ((line = bufferedReader.readLine()) != null) {  
31.                                 result += line;  
32.                             }  
33.                         } catch (IOException e) {  
34.                             e.printStackTrace();  
35.                         }  
36.                     }  
37.                     System.out.println(result);  
38.                 } catch (MalformedURLException e) {  
39.                     // URL格式错误  
40.                     e.printStackTrace();  
41.                 } catch (UnsupportedEncodingException e) {  
42.                     // 不支持你设置的编码  
43.                     e.printStackTrace();  
44.                 } catch (ProtocolException e) {  
45.                     // 请求方式不支持  
46.                     e.printStackTrace();  
47.                 } catch (IOException e) {  
48.                     // 输入输出通讯出错  
49.                     e.printStackTrace();  
50.                 }  
51.             }  
52.         });  
53.         thread.start();  
54.     }  
55. }  

public class MyHttpURLConnectionActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);Thread thread = new Thread(new Runnable() {@Overridepublic void run() {BufferedReader bufferedReader = null;try {URL url = new URL("http://192.168.18.157");// 根据自己的服务器地址填写HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setConnectTimeout(10000);conn.setDoOutput(true);// 允许输出conn.setRequestMethod("POST");conn.setRequestProperty("Connection", "Keep-Alive");conn.setRequestProperty("Charset", "GBK");OutputStream os = conn.getOutputStream();os.write("name=allen".getBytes());if (conn.getResponseCode() == 200) {System.out.println(conn.toString());InputStream is = conn.getInputStream();InputStreamReader isr = new InputStreamReader(is, "GBK");bufferedReader = new BufferedReader(isr);}String result = "";String line = "";if (bufferedReader != null) {try {while ((line = bufferedReader.readLine()) != null) {result += line;}} catch (IOException e) {e.printStackTrace();}}System.out.println(result);} catch (MalformedURLException e) {// URL格式错误e.printStackTrace();} catch (UnsupportedEncodingException e) {// 不支持你设置的编码e.printStackTrace();} catch (ProtocolException e) {// 请求方式不支持e.printStackTrace();} catch (IOException e) {// 输入输出通讯出错e.printStackTrace();}}});thread.start();}}

4、ksoap2方法：

1. public class MyKsoap2Activity extends Activity {  
2.   
3.     @Override  
4.     protected void onCreate(Bundle savedInstanceState) {  
5.         super.onCreate(savedInstanceState);  
6.         Thread thread = new Thread(new Runnable() {  
7.             @Override  
8.             public void run() {  
9.                 String URL = "http://cjf780426.xicp.net:803/Demo/DEMO1/GBSvr.dll/soap/IGBSvr";  
10.                 String NAMESPACE = "http://tempuri.org/";  
11.                 SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);  
12.                 envelope.dotNet = true;  
13.                 HttpTransportSE ht = new HttpTransportSE(URL);  
14.                 ht.debug = true;  
15.                 String METHOD_NAME = "GBlogin";  
16.                 String SOAP_ACTION = "urn:GBSvrIntf-IGBSvr#GBlogin";  
17.                 SoapObject rpc = new SoapObject(NAMESPACE, METHOD_NAME);  
18.                 rpc.addProperty("UserName", "AllenSTU");  
19.                 rpc.addProperty("UserPWD", "AllenSTU");  
20.                 envelope.bodyOut = rpc;  
21.                 envelope.setOutputSoapObject(rpc);  
22.                 try {  
23.                     ht.call(SOAP_ACTION, envelope);  
24.                     System.out.println((String) envelope.getResponse());  
25.                 } catch (SoapFault e) {  
26.                     // TODO Auto-generated catch block  
27.                     e.printStackTrace();  
28.                 } catch (IOException e) {  
29.                     // TODO Auto-generated catch block  
30.                     e.printStackTrace();  
31.                 } catch (XmlPullParserException e) {  
32.                     // TODO Auto-generated catch block  
33.                     e.printStackTrace();  
34.                 }  
35.             }  
36.         });  
37.         thread.start();  
38.     }  
39. }