android中利用HttpURLConnection进行Get、Post和Session读取页面。

直接上代码，调用的时候要放在线程中。
package slj.getsms;

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.io.IOException;

public class sljWork {

	public static String GetDataFromKC(String loginUrl,String loginParam,String indexUrl)

	{

		byte[] btParam=loginParam.getBytes();

		try{

			URL url=new URL(loginUrl);

			HttpURLConnection conn=(HttpURLConnection)url.openConnection();

			conn.setConnectTimeout(3000);

			conn.setRequestMethod("POST");

			conn.setInstanceFollowRedirects(false);

			OutputStream outStream=conn.getOutputStream();

			outStream.write(btParam);

			conn.connect();

			String[] backHeader=conn.getHeaderField("Location").split(";");

			String sessionId="user_login_id=dddd; "+backHeader[1].toUpperCase();

			URL nextUrl=new URL(indexUrl);

			HttpURLConnection nextConn=(HttpURLConnection)nextUrl.openConnection();

			nextConn.addRequestProperty("Cookie",sessionId);

			nextConn.connect();

			BufferedReader bufReader=new BufferedReader(new InputStreamReader(nextConn.getInputStream(),"GBK"));

			String backData="";

			String line="";

			while((line=bufReader.readLine())!=null)

				backData+=line+"\r\n";

			return backData;

		}catch (IOException e){

			return "ErrorInfo:"+e.getMessage().toString();

		}

	}

	public static String GetDataByPost(String strUrl)

	{

		byte[] btPostData=new String("pname=slj&ppass=slj").getBytes();

		try{

			URL url=new URL(strUrl);

			HttpURLConnection conn=(HttpURLConnection)url.openConnection();

			conn.setConnectTimeout(3000);

			conn.setRequestMethod("POST");

			conn.setInstanceFollowRedirects(false);

			OutputStream outStream=conn.getOutputStream();

			outStream.write(btPostData);

			conn.connect();

			BufferedReader bufReader=new BufferedReader(new InputStreamReader(conn.getInputStream(),"utf-8"));

			String backData="";

			String line="";

			while((line=bufReader.readLine())!=null)

				backData+=line+"\r\n";

			return backData;

		}catch(IOException e){

			return "ErrorInfo:"+e.getMessage().toString();

		}

	}

	public static String GetDataByGet(String strUrl)

	{

		try{

			URL url=new URL(strUrl);

			HttpURLConnection conn=(HttpURLConnection)url.openConnection();

			conn.setConnectTimeout(3000);

			conn.setRequestMethod("GET");

			conn.connect();

			BufferedReader bufReader=new BufferedReader(new InputStreamReader(conn.getInputStream(),"utf-8"));

			String backData="";

			String line="";

			while((line=bufReader.readLine())!=null)

				backData+=line+"\r\n";

			return backData;

		}catch(IOException e){

			return "ErrorInfo:"+e.getMessage().toString();

		}

	}

}