java類比post提交

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package javapost;import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;import java.security.MessageDigest;public class RZBService {        public static void main(String[] args) {            //注意：參數必須要經過utf-8編碼        simpleCheck();       }      static void simpleCheck(){        String account = "xxx"; // 帳號        String pwd = "xxx"; // 密碼        String sign = md5(md5(xxxx+ xxxx) + xxxx);        String url="xxxxxx";        String postdata="";        try {            postdata = "idNumber=" + idNumber                            + "&name=" + URLEncoder.encode(name, "UTF-8")                            + "&account=" + account                            //+ "&pwd="+ pwd                            + "&sign=" + sign;        } catch (UnsupportedEncodingException e) {            e.printStackTrace();        }        String json="";        try {            json = readContentFromPost(url, postdata);        } catch (IOException e) {            e.printStackTrace();        }        System.out.println(json);    }    static String md5(String text) {        byte[] bts;        try {            bts = text.getBytes("UTF-8");            MessageDigest md = MessageDigest.getInstance("MD5");            byte[] bts_hash = md.digest(bts);            StringBuffer buf = new StringBuffer();            for (byte b : bts_hash) {                buf.append(String.format("%02X", b & 0xff));            }            return buf.toString();        } catch (java.io.UnsupportedEncodingException e) {            e.printStackTrace();            return "";        } catch (java.security.NoSuchAlgorithmException e) {            e.printStackTrace();            return "";        }    }    public static String readContentFromPost(String POST_URL,String postdata) throws IOException{              URL postUrl = new URL(POST_URL);              HttpURLConnection connection = (HttpURLConnection) postUrl.openConnection();              connection.setDoOutput(true);              connection.setDoInput(true);              connection.setRequestMethod("POST");              connection.setUseCaches(false);              connection.setInstanceFollowRedirects(true);              connection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");              connection.connect();              DataOutputStream out = new DataOutputStream(connection.getOutputStream());              out.writeBytes(postdata);               out.flush();              out.close();               BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),"utf-8"));//設定編碼,否則中文亂碼              String line="";              StringBuffer response = new StringBuffer();            while ((line = reader.readLine()) != null){                  response.append(line);            }              reader.close();              connection.disconnect();              return response.toString();        }  }

 

java類比post提交