2021 5 13

访问自己的阿里云服务器挂的servlet：

package com.michael.cloudphotos;

import android.os.Message;
import android.util.Log;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import android.os.Handler;

public class gethttp extends Thread {
    public String m_url;
    public Handler handler;
    public gethttp(String url, Handler handler) {
        this.m_url=url;
        this.handler=handler;
    }
    @Override
    public void run() {
        HttpURLConnection connection=null;
        try {
            URL url=new URL(m_url);
            connection=(HttpURLConnection) url.openConnection();
            connection.connect();
            String lines=null;
//            BufferedReader br=new BufferedReader(new InputStreamReader(connection.getInputStream()));
            DataInputStream ios=new DataInputStream(new DataInputStream(connection.getInputStream()));
            lines=ios.readUTF();
            Log.i("info:",lines);
            Message msg=new Message();
            msg.what=1;
            msg.obj=lines;
            handler.sendMessage(msg);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            if(connection!=null)
            {
                connection.disconnect();
            }
        }
    }
}