package com.example.phonehttp;

import android.os.Bundle;

import android.os.Handler;

import android.app.Activity;

import android.widget.ScrollView;

import android.widget.TextView;

public class MainActivity extends Activity {

Handler handler = new Handler();

ScrollView scroll;

TextView tv;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

scroll = (ScrollView) findViewById(R.id.scroll);

tv = (TextView) findViewById(R.id.tv);

String url = "https://home.cnblogs.com/news/";

HttpThread httpThread = new HttpThread(url, scroll, tv, handler);

httpThread.start();

}

}

 

package com.example.phonehttp;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;

import android.os.Handler;

import android.view.View;

import android.widget.ScrollView;

import android.widget.TextView;

public class HttpThread extends Thread {

String str;

String url;

ScrollView scroll;

TextView tv;

Handler handler;

public HttpThread(String url,ScrollView scroll,TextView tv,Handler handler) {

// TODO Auto-generated constructor stub

this.url = url;

this.scroll = scroll;

this.tv = tv;

this.handler = handler;

}

@Override

public void run() {

// TODO Auto-generated method stub

try {

URL Httpurl = new URL(url);

HttpURLConnection conn = (HttpURLConnection) Httpurl

.openConnection();

conn.setConnectTimeout(5000);

conn.setRequestMethod("GET");

if (conn.getResponseCode() != 200) {

throw new RuntimeException("请求url失败");

}

BufferedReader bufferedReader = new BufferedReader(

new InputStreamReader(conn.getInputStream()));

StringBuffer sb = new StringBuffer();

while ((str = bufferedReader.readLine()) != null) {

sb.append(str);

}

str = sb.toString();

handler.post(new Runnable() {

@Override

public void run() {

// TODO Auto-generated method stub

scroll.setVisibility(View.VISIBLE);

tv.setText(str);

}

});

} catch (MalformedURLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

tools:context=".MainActivity" >

<TextView

android:id="@+id/txtMenu"

android:layout_width="match_parent"

android:layout_height="48dp"

android:background="#E0FFFF"

android:clickable="true"

android:gravity="center"

android:text="@string/hello_world"

android:textSize="20sp" />

<ScrollView

android:id="@+id/scroll"

android:layout_width="match_parent"

android:layout_height="match_parent">

<TextView

android:id="@+id/tv"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/hello_world" />

</ScrollView>

</LinearLayout>