URLConnection 的基本用法

@Test
  public void testURLConnection() {
    try {
      String urlString = "http://11.10.113.8:8080/hiapi/paas/asset/db";
      URL url = new URL(urlString); //代表了一个网址
      //首先创建HTTP代理，指定代理的地址和端口
      Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("11.10.113.8", 8080));
      /**
       * 首先打开一个连接对象
       * 可以通过这个对象，在真正发起请求之前，设置一些其它的信息
       * 比如：代理服务器等
       */
      URLConnection conn = url.openConnection(proxy);
      InputStream is = conn.getInputStream(); //获得网页的内容
      //将InputStream转换为Reader，并使用缓冲读取，提高效率，同时可以按行
      BufferedReader br = new BufferedReader(new
          InputStreamReader(is, "UTF-8"));
      String line = null;
      while ((line = br.readLine()) != null) {
        System.out.println(line);
      }
      is.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

@Test
  public void testURLConnection() {
    try {
      String urlString = "http://66.10.113.8:8080/hiapi/paas/asset/db";
      URL url = new URL(urlString); //代表了一个网址
      URLConnection conn = url.openConnection();
      InputStream is = conn.getInputStream(); //获得网页的内容
      //将InputStream转换为Reader，并使用缓冲读取，提高效率，同时可以按行
      BufferedReader br = new BufferedReader(new
          InputStreamReader(is, "UTF-8"));
      String line = null;
      while ((line = br.readLine()) != null) {
        System.out.println(line);
      }
      is.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

运行结果

Connected to the target VM, address: '127.0.0.1:58065', transport: 'socket'
Disconnected from the target VM, address: '127.0.0.1:58065', transport: 'socket'
[{"sign":"paas","deptId":103,"hostName":"66.3.125.80,66.3.125.81,66.3.125.82","port":"1521","dbId":88,"dbType":"ORACLE","dbName":"nnsptf","isCapture":null,"dbaUser":"system","dbaPwd":"oracle","dbAlias":"压测1"},{"sign":"paas","deptId":103,"hostName":"66.3.125.80,66.3.125.81,66.3.125.82","port":"1521","dbId":96,"dbType":"ORACLE","dbName":"cjecgc","isCapture":null,"dbaUser":"system","dbaPwd":"oracle","dbAlias":"测试ora"},{"sign":"paas","deptId":105,"hostName":"66.3.125.80,66.3.125.81,66.3.125.82","port":"1521","dbId":157,"dbType":"ORACLE","dbName":"uujarl","isCapture":null,"dbaUser":"system","dbaPwd":"oracle","dbAlias":"溧水库"},{"sign":"paas","deptId":105,"hostName":"66.3.125.80,66.3.125.81,66.3.125.82","port":"1521","dbId":164,"dbType":"ORACLE","dbName":"qwxutc","isCapture":null,"dbaUser":"system","dbaPwd":"oracle","dbAlias":"溧水数据库2"},{"sign":"paas","deptId":103,"hostName":"66.3.125.80,66.3.125.81,66.3.125.82","port":"1521","dbId":298,"dbType":"ORACLE","dbName":"vosrtz","isCapture":null,"dbaUser":"system","dbaPwd":"oracle","dbAlias":"zijin001"},{"sign":"paas","deptId":103,"hostName":"66.3.125.80,66.3.125.81,66.3.125.82","port":"1521","dbId":299,"dbType":"ORACLE","dbName":"pffklf","isCapture":null,"dbaUser":"system","dbaPwd":"oracle","dbAlias":"zijin002"}]
Process finished with exit code 0