class MainActivity

 

package kr.co.braverokmc.myhttp;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

//웹으로 요청하기
public class MainActivity extends AppCompatActivity {

    EditText editText;
    TextView textView;

    Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
        }
    };

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

        editText=(EditText)findViewById(R.id.editText);
        textView=(TextView)findViewById(R.id.textView);

    }


    public void onClick(View v){
        RequestThread thread=new RequestThread();
        thread.setDaemon(true);
        thread.start();
    }


    class RequestThread extends Thread{
        @Override
        public void run() {

            try{
                String urlStr =editText.getText().toString();
                StringBuilder outputBuilder =new StringBuilder();


                URL url =new URL(urlStr);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
               //기본 속성 설정
                connection.setDoInput(true);
                connection.setDoOutput(true);
                connection.setConnectTimeout(15000); //접속시간 15초 여유

                int resCode =connection.getResponseCode();
                if(resCode==HttpURLConnection.HTTP_OK){
                    BufferedReader reader =new BufferedReader(
                            new InputStreamReader(connection.getInputStream(), "UTF-8"));

                    String line=null;

                    while (true){
                        line=reader.readLine(); //한줄 읽기
                        if(line==null){
                            break;
                        }
                        outputBuilder.append(line+"\n");
                    }
                    reader.close();
                    connection.disconnect();

                    println(outputBuilder.toString());
                }

            }catch (Exception e){
                e.printStackTrace();
            }
        }
    }


    private void println(final String data){


        handler.post(new Runnable() {
            @Override
            public void run() {
                textView.append(data +"\n");
            }
        });
    }



}

 

R.layout.activity_main

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="kr.co.braverokmc.myhttp.MainActivity">

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:inputType="textPersonName"
        android:text="https://m.naver.com/"
        android:ems="10"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:id="@+id/editText"

        />

    <Button
        android:text="Http 요청하기"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/editText"
        android:id="@+id/button"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:onClick="onClick"
        />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"

        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentBottom="true"
        android:layout_below="@+id/editText"
        android:background="@android:color/holo_orange_light">


        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/textView"
            />


    </ScrollView>




</RelativeLayout>

 

 

AndroidMainfest.xml

  <uses-permission android:name="android.permission.INTERNET" />

 

 

 

 

 

98강

 

 

 

99강