URL编程

URL类

  1. URL：统一资源定位符，它表示Internet上某一资源的地址
    1. URL url = new URL("url");
    2. HttpURLConnection httpURLConnection = (HttpURLConnection)url.openConnection();
    3. InputStream inputStream = httpURLConnection.getInputStream();

调用http

get

  1. String methodUrl = "http://110.32.44.11:8086/sp-test/usertest/1.0/query";
  2. HttpURLConnection connection = null;
  3. BufferedReader reader = null;
  4. String line = null;
  5. try {
  6.     URL url = new URL(methodUrl + "?mobile=15334567890&name=zhansan");
  7.     connection = (HttpURLConnection) url.openConnection();// 根据URL生成HttpURLConnection
  8.     connection.setRequestMethod("GET");// 默认GET请求
  9.     connection.connect();// 建立TCP连接
  10.     if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
  11.         reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));// 发送http请求
  12.         StringBuilder result = new StringBuilder();
  13.         // 循环读取流
  14.         while ((line = reader.readLine()) != null) {
  15.             result.append(line).append(System.getProperty("line.separator"));// "\n"
  16.         }
  17.         System.out.println(result.toString());
  18.     }
  19. } catch (IOException e) {
  20.     e.printStackTrace();
  21. } finally {
  22.     try {
  23.         reader.close();
  24.     } catch (IOException e) {
  25.         e.printStackTrace();
  26.     }
  27.     connection.disconnect();
  28. }
  29. }

post

HttpClient方式调用

Spring RestTemplate方式调用