android之发送Get或Post请求至服务器接口

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import android.annotation.SuppressLint;
import android.os.StrictMode;
import android.util.Log;

@SuppressLint("NewApi")
public class ServiceUtil {
    public static String userAgent =  "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";
    public static String getServiceInfo  (String strUrl,String ip,String port)
    {
            System.setProperty("https.proxyHost", ip);
            System.setProperty("https.proxyPort", port);
            StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build());
            StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder().detectLeakedSqlLiteObjects().detectLeakedClosableObjects().penaltyLog().penaltyDeath().build());
            HttpURLConnection conn = null;
            BufferedReader reader = null;
            String rs = null;
            try {
                StringBuffer sb = new StringBuffer();
                URL url = new URL(strUrl);
                conn = (HttpURLConnection) url.openConnection();
                conn.setRequestMethod("GET");
                conn.setRequestProperty("User-agent", userAgent);
                conn.setUseCaches(false);
                conn.setConnectTimeout(90000);
                conn.setReadTimeout(90000);
                conn.setInstanceFollowRedirects(false);
                conn.connect();

                InputStream is = conn.getInputStream();
                reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
                String strRead = null;
                while ((strRead = reader.readLine()) != null) {
                    sb.append(strRead);
                }
                rs = sb.toString();
            } catch (IOException e) {
                Log.e("ServiceUtil-->>getServiceInfo",e.getMessage());
            } finally {
                if (reader != null) {
                    try {
                        reader.close();
                    } catch (IOException e) {
                        Log.e("ServiceUtil-->>getServiceInfo",e.getMessage());
                    }
                }
                if (conn != null) {
                    conn.disconnect();
                }
            }
            if(null!=rs){
                rs = rs.replace( "<?xml version=\"1.0\" encoding=\"utf-8\"?>", "")
                        .replace("<string xmlns=\"http://tempuri.org/\">", "")
                        .replace("</string>", "").replace("\r", "")
                        .replace("\n", "")
                        .replace("<string xmlns=\"http://tempuri.org/\" />", "");
            }
            LogUtil.WriteLog(rs);
            return rs;
    }

    /**
     * post请求获取数据
     * @param strUrl 请求地址，如： "http://....asmx/HelloWork"
     * @param params 设置发送的参数，如："key=1&name=1";//设置发送的参数
     * @return
     */
    public static String getServiceInfoPost(String strUrl,String params)
    {
        String strResult="";
        try{

            byte[] entity = params.getBytes();
            HttpURLConnection con = (HttpURLConnection) new URL(strUrl).openConnection();
            con.setRequestMethod("POST");
            con.setDoOutput(true);
            con.setConnectTimeout(90000);
            con.setReadTimeout(90000);
            con.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
            con.setRequestProperty("Content-Length",String.valueOf(entity.length));
            con.getOutputStream().write(entity);
            int code =con.getResponseCode();//响应代码 200表示成功
            if(code==200){
                InputStream inStream = con.getInputStream();
                strResult=new String(readInputStream(inStream), "UTF-8");
                if(null!=strResult){
                    strResult = strResult.replace( "<boolean xmlns=\"http://tempuri.org/\">", "")
                            .replace("</boolean>", "")
                            .replace("</string>", "").replace("\r", "")
                            .replace("\n", "")
                            .replace("<string xmlns=\"http://tempuri.org/\" />", "");
                }
            }
        }
        catch(Exception ex){
            Log.e("getServiceInfoPost",ex.getMessage());
        }
        return strResult;
    }

    /**
     * 从输入流中读取数据
     * @param inStream
     * @return
     * @throws Exception
     */
    public static byte[] readInputStream(InputStream inStream) {
        try{
            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
            byte[] buffer = new byte[10000];
            int len = 0;
            while( (len = inStream.read(buffer)) !=-1 ){
                outStream.write(buffer, 0, len);
            }
            byte[] data = outStream.toByteArray();//网页的二进制数据
            outStream.close();
            inStream.close();
            return data;
        }
        catch(Exception ex){
            return null;
        }
    }
}