AndroidStudio连接不上eclipse http服务器

class ConnByHttp:

package com.example.myapplication;


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

import java.io.DataInputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class ConnByHttp extends Thread {
    String urlstr = "";
    Handler mainHandler;

    public ConnByHttp(String url,Handler handler){
        this.urlstr = url;
        mainHandler = handler;
    }

    @Override
    public void run() {
        HttpURLConnection connection = null;
        //1、创建URL对象---创建客户端对象
        try {
            URL url = new URL(urlstr);
            //2、创建连接对象
            connection = (HttpURLConnection) url.openConnection();
            //3、发起连接请求
            connection.connect();
            //4、获取响应数据
            String content = null;
            DataInputStream dis = new DataInputStream(connection.getInputStream());
            content = dis.readUTF();
            Log.i("web info:",content);
            //把服务器响应数据发送给UI线程处理
            Message msg = new Message();
            msg.what = 1;
            msg.obj = content;
            mainHandler.sendMessage(msg);
        } catch (MalformedURLException e) {
            //创建客户端出错的异常
            e.printStackTrace();
        } catch (IOException e) {
            //创建连接对象的异常
            e.printStackTrace();
        }
        finally {
            if(connection != null){
                connection.disconnect();//关闭连接
            }
        }
    }

}

 RegisterActivity:

import android.content.DialogInterface
import android.content.Intent
import android.os.Bundle
import android.os.Handler
import android.os.Message
import android.util.Log
import android.view.View
import android.widget.Button
import android.widget.EditText
import android.widget.Toast
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatActivity


class RegisterActivity : AppCompatActivity(),View.OnClickListener {
    //声名全局变量
    var et_username:EditText ?=null;
    var et_userpwd:EditText ?= null
    var verify_keyword:EditText ?= null
    var btn_register:Button ?= null
    var handler: Handler? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_register)

        handler = object : Handler() {
            override fun handleMessage(msg: Message) {
                when (msg.what) {
                    1 -> {
                        val sinfo = msg.obj.toString().trim()
                        if (sinfo == "T") {
                            toast(" 注册成功！")
                        } else if (sinfo == "F") {
                            toast(" 注册失败，请重试！")
                        }
                    }
                }
            }
        }

        "获取控件对象"
        et_username = findViewById(R.id.et_username)
        et_userpwd = findViewById(R.id.et_userpwd)
        verify_keyword = findViewById(R.id.verify_keyword)
        btn_register = findViewById(R.id.btn_register)

        "对按钮设置监听"
        btn_register?.setOnClickListener({
            //启动联网子线程 连接http服务器
            var url = "http://192.168.277.213:8080/Register/servlet/MyServelet";
            val name = et_username?.text.toString().trim()
            val pwd = et_userpwd?.text.toString().trim()
            val verifykeyword = verify_keyword?.text.toString().trim()
            url = url + "?name=" + name + "&pwd=" + pwd
            Log.i("URL地址", url)
            val connByHttp = ConnByHttp(url, handler)
            connByHttp.start()
            if (verifykeyword.equals(pwd)) {
                val intent: Intent = Intent(this, FristActivity::class.java)
                intent.putExtra("user_name", "用户名：" + et_username?.text.toString())
                intent.putExtra("user_keyword", et_userpwd?.text.toString())
                startActivity(intent)
            } else {
                AlertDialog.Builder(this).apply {
                    setTitle("警告对话框")
                    setMessage("输入密码不匹配")
                    setPositiveButton("确定") { dialog: DialogInterface?, which: Int ->
                        verify_keyword?.text = null
                    }
                    setNegativeButton("取消") { dialog: DialogInterface?, which: Int -> finish() }
                    show()
                }
            }
        })

    }

    override fun onClick(p0: View?) {
        "对点击事件进行响应逻辑判断处理"
        when(p0?.id){
        }
    }

    fun toast(str: String?) {
        Toast.makeText(this, str, Toast.LENGTH_SHORT).show()
    }

}

报错：

上网查说是访问网络权限的问题，但是我加了的啊，地址也检查了的没错，还是解决不了，有大佬可以帮忙看一下ma？？

你发起请求是这样发起的？你后端都没学好啊。