public static String getGetMethod(String url,String param) {  String result = "";BufferedReader in = null;try {String urlNameString = url + "?" + param;URL realUrl = new URL(urlNameString);// 打开和URL之间的连接URLConnection connection = realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("Content-Type", "application/json");connection.setRequestProperty("Connection", "Keep-Alive");  connection.setRequestProperty("Accept-Encoding", "gzip");  connection.setRequestProperty("Content-Length", "92"); // 建立实际的连接connection.connect();// 获取所有响应头字段Map<String, List<String>> map = connection.getHeaderFields();// 遍历所有的响应头字段for (String key : map.keySet()) {System.out.println(key + "--->" + map.get(key));}// 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("发送GET请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输入流finally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;//  return pmethod;  }

 public static String sendPost(String url, String param) {PrintWriter out = null;BufferedReader in = null;String result = "";try {URL realUrl = new URL(url);URLConnection conn = realUrl.openConnection();conn.setRequestProperty("Content-Type", "application/json");conn.setRequestProperty("Connection", "Keep-Alive");  conn.setRequestProperty("Accept-Encoding", "gzip");  conn.setRequestProperty("Content-Length", "92"); //conn.setRequestProperty("Charset", "GBK");conn.setDoOutput(true);conn.setDoInput(true);out = new PrintWriter(conn.getOutputStream());out.print(param);out.flush();in = new BufferedReader(new InputStreamReader(conn.getInputStream(),"UTF-8"));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {e.printStackTrace();}finally{try{if(out!=null){out.close();}if(in!=null){in.close();}}catch(IOException ex){ex.printStackTrace();}}return result;}