package com.expai.utils;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.ProtocolException;import java.net.URL;import java.util.Map;import java.util.Map.Entry;import org.slf4j.Logger;import org.slf4j.LoggerFactory;/** * Description:后台服务要调用其他架构服务post请求服务类 */public class HttpPostUtils {        private static Logger logger = LoggerFactory.getLogger(HttpPostUtils.class);        /**     * 发送请求     * @param url     * @param params     * @return     */    public static String sendPost(String url,Map<String,String> params){                logger.debug("sendPost======================开始===========");        URL u = null;        HttpURLConnection con = null;        //构建请求参数        StringBuffer sb = new StringBuffer();        if(params != null){            for(Entry<String,String>e:params.entrySet()){                sb.append(e.getKey());                sb.append("=");                sb.append(e.getValue());                sb.append("&");            }            sb.substring(0, sb.length()-1);        }        logger.debug("send_url:"+url);        logger.debug("send_data:"+sb.toString());        //发送请求        try {            u = new URL(url);            con = (HttpURLConnection)u.openConnection();            con.setRequestMethod("GET");            con.setDoInput(true);            con.setDoOutput(true);            con.setUseCaches(false);            con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");            OutputStreamWriter osw = new OutputStreamWriter(con.getOutputStream(), "UTF-8");            osw.write(sb.toString());            osw.flush();            osw.close();        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (ProtocolException e) {            e.printStackTrace();        } catch (UnsupportedEncodingException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }finally{            if(con!=null){                con.disconnect();            }        }                //读取返回的参数        StringBuffer buffer = new StringBuffer();        try {            BufferedReader br = new BufferedReader(new InputStreamReader(                    con.getInputStream(), "UTF-8"));            String temp;            while ((temp = br.readLine()) != null) {                buffer.append(temp);                buffer.append("\n");            }        } catch (UnsupportedEncodingException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }                return buffer.toString();            }    }