HttpURLConnection编写方法

来源：互联网发布：网络机柜编辑：程序博客网时间：2024/06/05 10:19

public class MainActivity extends Activity {
// String path = "http://op.juhe.cn/onebox/news/query?q=普京盟友炮轰OPEC不团结称其影响油市的时代已终结&key=f2219bf102195209a3db41a58ce0b180";

String path = "http://web.juhe.cn:8080/constellation/getAll";
//给服务器传递的参数
String str="consName=狮子座&type=today&key=3ac9f31ff66b9746539472887b3799c3";

Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {};

};

private ListView listView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

listView = (ListView) findViewById(R.id.listView);

new Thread() {

   public void run() {
    geData();
   };

}.start();

}

/**
*
*/
private void geData() {
  // 设置接口地址
  try {
   URL url = new URL(path);

   HttpURLConnection connection = (HttpURLConnection) url
     .openConnection();

   // 设置连接超时
   connection.setConnectTimeout(5000);
   // 设置读取超时
   connection.setReadTimeout(5000);
   // 设置请求方式
   connection.setRequestMethod("POST");

   //得到输出流,象服务器传递参数
   OutputStream outputStream = connection.getOutputStream();

   PrintWriter printWriter=new PrintWriter(outputStream);
   //设置要传递的数据
   printWriter.println(str);

   printWriter.flush();

   // 连接网络
   connection.connect();
   // 如果响应码等于200代表请求成功
   if (connection.getResponseCode() == 200) {
    // 得到服务器返回的信息,是流的形式返回回来的
    InputStream inputStream = connection.getInputStream();
    BufferedReader bufferedReader = new BufferedReader(
      new InputStreamReader(inputStream, "UTF-8"));

    String str;
    StringBuffer stringBuffer = new StringBuffer();
    // 一次读一行
    while ((str = bufferedReader.readLine()) != null) {
     // 把读到的每一行信息都追加到stringBuffer里
     stringBuffer.append(str);
    }

    String data = stringBuffer.toString();

//    System.out.println(data);

    // 将json数据转成对象
    Gson gson = new Gson();

    Bean bean = gson.fromJson(data, Bean.class);

    System.out.println(bean.toString());
    // 把对象通过handler发送给主线程
    Message msg = Message.obtain();
//    msg.obj = root;
//    handler.sendMessage(msg);

} else {

Toast.makeText(this, " 请求失败 ", 0).show();

}

  } catch (MalformedURLException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

}

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