http 에서 post 와 get 방식 으로 데 이 터 를 제출 합 니 다.

package com.example.wifiip;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.sql.SQLNonTransientConnectionException;
import java.util.Map;

import android.R.integer;

public class HttpUtil {

	private static String PATH="      ";
	private static URL url;
//	//        url
//	static{
//		try {
//			url=new URL(PATH);
//		} catch (MalformedURLException e) {
//			// TODO Auto-generated catch block
//			e.printStackTrace();
//		}
//	}
	/***
	 *  post        
	 * @param params
	 * @param encode
	 * @return
	 */
	public static String sendPostMessgae(Map<String, String> params,String encode){
	
		StringBuilder builder=new StringBuilder();
		if(params!=null&&!params.isEmpty()){
			for(Map.Entry<String, String> entry:params.entrySet()){
				try {
					builder.append(entry.getKey())
						   .append("=")
						   .append(URLEncoder.encode(entry.getValue(),encode))
						   .append("&");
				} catch (UnsupportedEncodingException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
			builder.deleteCharAt(builder.length()-1);
			HttpURLConnection urlConnection;
			try {
				url=new URL(PATH);
				urlConnection = (HttpURLConnection) url.openConnection();
				urlConnection.setConnectTimeout(3000);
				urlConnection.setRequestMethod("POST");// post    
				urlConnection.setDoInput(true);//    
				urlConnection.setDoOutput(true);//       
				//            
				byte[] data=builder.toString().getBytes();
				//         ，            
				urlConnection.setRequestProperty("Content-type", "application/x-www-form-urlencode");
				urlConnection.setRequestProperty("Content-length", String.valueOf(data.length));
				//     ，        
				OutputStream out=urlConnection.getOutputStream();
				//   
				out.write(data, 0, data.length);
				out.close();
				//             
				int responseCode=urlConnection.getResponseCode();
				if(responseCode==200){
					//      
					return inStream2String(urlConnection.getInputStream(),encode);
				}
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
			
			
		}
		return null;
		
	}
	/**
	 *  get      
	 * @param params
	 * @param encode
	 * @return
	 */
	public static String sendGetMessage(Map<String, String> params,String encode){
		StringBuilder builder=new StringBuilder(PATH);
		builder.append("?");
		if(params!=null&&!params.isEmpty()){
			for(Map.Entry<String, String> entry:params.entrySet()){
				try {
					builder.append(entry.getKey())
						   .append("=")
						   .append(URLEncoder.encode(entry.getValue(),encode))
						   .append("&");
				} catch (UnsupportedEncodingException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}
		builder.deleteCharAt(builder.length()-1);
		HttpURLConnection urlConnection;
		try {
			url=new URL(builder);
			urlConnection = (HttpURLConnection) url.openConnection();
			urlConnection.setConnectTimeout(3000);
			urlConnection.setRequestMethod("GET");// post    
			urlConnection.setDoInput(true);//    
			urlConnection.setDoOutput(true);//       
			//         ，            
			urlConnection.setRequestProperty("Content-type", "application/x-www-form-urlencode");
			int responseCode=urlConnection.getResponseCode();
			if(responseCode==200){
				//      
				return inStream2String(urlConnection.getInputStream(),encode);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}
	//          ，     
	@SuppressWarnings("unused")
	private static String inStream2String(InputStream is,String encode) throws IOException{
		ByteArrayOutputStream baos=new ByteArrayOutputStream();
		byte[] buf=new byte[1024];
		int len=-1;
		while((len=is.read(buf))!=-1){
			baos.write(buf,0,len);
		}
		
		return new  String(baos.toByteArray(),encode);  // byte           
	}
}