HTTPUilConnection工具类

package com.baway.firstweek.net;

import android.os.AsyncTask;
import android.text.TextUtils;

import com.google.common.io.ByteStreams;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;


public class AsyncHttpClient {
    private static final AsyncHttpClient ourInstance = new AsyncHttpClient();
    private static final String TAG = "AsyncHttpClient";

    public static AsyncHttpClient getInstance(){
        return ourInstance;
    }
    public void GetAsync(final String url,final AsyncCallback callback){
        new AsyncTask<String,Void,String>(){
            @Override
            protected String doInBackground(String... strings) {
                return GetDataHttp(strings[0]);
            }

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                if (!TextUtils.isEmpty(s)){
                    callback.Succore(s);
                }else {
                    callback.Error(503,"未请求到数据");

                }
            }
        }.execute(url);
    }
    public void PostAsync(final String url, final String username, final String pwd, final AsyncCallback callback){
        new AsyncTask<String,Void,String>(){
            @Override
            protected String doInBackground(String... strings) {
                return PostDataHttp(strings[0], strings[1], strings[2]);
            }

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                if (!TextUtils.isEmpty(s)){
                    callback.Succore(s);
                }else {
                    callback.Error(503, "未请求到数据");
                }
            }
        }.execute(url,username,pwd);
    }
    private String GetDataHttp(String server_url){
        try{
            URL url=new URL(server_url);
            HttpURLConnection connection=(HttpURLConnection) url.openConnection();
            connection.setReadTimeout(5000);
            connection.setConnectTimeout(5000);
            connection.setRequestMethod("GET");
            if (connection.getResponseCode() == connection.HTTP_OK){
                InputStream stream=connection.getInputStream();
                String s=new String(ByteStreams.toByteArray(stream));
                return s;
            }

        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }
    private String PostDataHttp(String server_url,String name,String pwd){
        try{
            URL url=new URL(server_url);
            HttpURLConnection connection=(HttpURLConnection) url.openConnection();
            connection.setReadTimeout(5000);
            connection.setConnectTimeout(5000);
            connection.setRequestMethod("POST");
            //请求头的信息
            String body = "phone="   URLEncoder.encode(name)   "&pwd="   URLEncoder.encode(pwd);
            connection.getOutputStream().write(body.getBytes());
            if (connection.getResponseCode() == connection.HTTP_OK){
                InputStream stream=connection.getInputStream();
                String s = new String(ByteStreams.toByteArray(stream));
                return s;
            }

        }catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }
    public interface AsyncCallback{
        void Error(int errorcode,String message);

        void Succore(String result);
    }
}

 

 

来源：http://www./content-4-163901.html