客戶端通過http協議以多參數方式連接服務端

服務端：
/**
 * 接收并處理http要求
 */
public ModelAndView list(HttpServletRequest request, HttpServletResponse response) throws Exception {
System.out.println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
String broadcast = request.getParameter("broadcast");
String username = request.getParameter("username");
String title = request.getParameter("title");
String message = request.getParameter("message");
String uri = request.getParameter("uri");
String apiKey = Config.getString("apiKey", "");
logger.debug("apiKey=" + apiKey);
if (broadcast.equalsIgnoreCase("Y")) {
notificationManager.sendBroadcast(apiKey, title, message, uri);
} else {
notificationManager.sendNotifcationToUser(apiKey, username, title, message, uri);
}
System.out.println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
return null;
}

客戶端：
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

public class ClientTest {
/**
* 第1種方案
* 多參數以post方式提交
* */
public static boolean sendPostRequest(String path, Map<String, String> params, String enc) throws Exception{  
       StringBuilder sb = new StringBuilder();  
        if(params!=null && !params.isEmpty()){  
            for(Map.Entry<String, String> entry : params.entrySet()){  
                sb.append(entry.getKey()).append('=')  
                    .append(URLEncoder.encode(entry.getValue(), enc)).append('&');  
            }  
            sb.deleteCharAt(sb.length()⑴);  
        }  
        byte[] entitydata = sb.toString().getBytes();//得到實體的2進制數據  
        URL url = new URL(path);  
        HttpURLConnection conn = (HttpURLConnection)url.openConnection();  
        conn.setRequestMethod("POST");  
        conn.setConnectTimeout(5 * 1000);  
        conn.setDoOutput(true);//如果通過post提交數據，必須設置允許對外輸出數據  
        //Content-Type: application/x-www-form-urlencoded  
        //Content-Length: 38  
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");  
        conn.setRequestProperty("Content-Length", String.valueOf(entitydata.length));  
        OutputStream outStream = conn.getOutputStream();  
        outStream.write(entitydata);  
        outStream.flush();  
        outStream.close();  
        if(conn.getResponseCode()==200){  
            return true;  
        }  
        return false;  
    } 
/**
* 測試
* */
public void testSendPostRequest() throws Throwable{  
        Map<String, String> params = new HashMap<String, String>();  
        params.put("method", "save");  
        params.put("title", "smith趙虹榮");  
        params.put("timelength", "80");  
        new ClientTest().sendPostRequest("http://localhost:8080/msgServer.do", params, "UTF⑻");  
    }

/**
* 第2種方案
* 多參數以post方式提交
* */
public static boolean sendRequestFromHttpClient(String path, Map<String, String> params, String enc) throws Exception{  
        List<NameValuePair> paramPairs = new ArrayList<NameValuePair>();  
        if(params!=null && !params.isEmpty()){  
            for(Map.Entry<String, String> entry : params.entrySet()){  
                paramPairs.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));  
            }  
        }  
        UrlEncodedFormEntity entitydata = new UrlEncodedFormEntity(paramPairs, enc);//得到經過編碼過后的實體數據  
        HttpPost post = new HttpPost(path); //form  
        post.setEntity(entitydata);  
        DefaultHttpClient client = new DefaultHttpClient(); //閱讀器  
        HttpResponse response = client.execute(post);//履行要求  
        if(response.getStatusLine().getStatusCode()==200){  
            return true;  
        }  
        return false;  
    }  
/**
* 測試
* */
public void testSendRequestFromHttpClient() throws Throwable{  
   Map<String, String> params = new HashMap<String, String>();  
   params.put("method", "save");  
   params.put("title", "趙虹榮");  
   params.put("timelength", "80");  
   boolean result = new ClientTest().sendRequestFromHttpClient("http://localhost:8080/msgServer.do", params, "UTF⑻");  
}    

public static void main(String[] args) throws Exception{
try {
new ClientTest().testSendPostRequest();
} catch (Throwable e) {
e.printStackTrace();
}
}
}