HttpUrlConnection

  本文的笔记来自对慕课网，Android中的Http通信：http://www.imooc.com/video/7213。在此记录学习，做为自己今后翻录查阅使用。
  案例：HttpUrlConnection 加载百度页面

  主要布局文件 activity_http_network_main.xml：

  <RelativeLayout 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: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=".HttpNewworkMainActivity" >

<WebView
android:id="@+id/
4000
webview1"
android:layout_width="match_parent"
android:layout_height="match_parent" />

</RelativeLayout>


   HttpUrlConnection.java

  

package com.mzm.testhttpnetwork;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import android.os.Handler;
import android.webkit.WebView;

public class HttpThread extends Thread {
private String url;
private WebView webview;
private Handler handler;

public HttpThread(String url, WebView webview, Handler handler) {
super();
this.url = url;
this.webview = webview;
this.handler = handler;
}

@Override
public void run() {
try {
URL httpUrl = new URL(url);
try {
HttpURLConnection conn = 	(HttpURLConnection) httpUrl.openConnection();
conn.setReadTimeout(5000);
conn.setRequestMethod("GET");
InputStreamReader stream =new  InputStreamReader(conn.getInputStream());
BufferedReader reader = new BufferedReader(stream);
final StringBuffer sb  = new StringBuffer();
String str;
while((str = reader.readLine())!= null){
sb.append(str);
}
handler.post(new Runnable() {

@Override
public void run() {
// TODO Auto-generated method stub
webview.loadData(sb.toString(), "text/html;charset=utf-8", null);
}
});
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
super.run();
}
}

HttpNetworkMainActivity.java

package com.mzm.testhttpnetwork;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.webkit.WebView;

public class HttpNetworkMainActivity extends Activity {

private WebView webview;
private Handler handler = new Handler();

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_http_network_main);
webview = (WebView) findViewById(R.id.webview1);
new HttpThread("http://www.baidu.com", webview, handler).start();
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.http_newwork_main, menu);
return true;
}

}

权限

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

  整个工程目录下载地址：

        链接：http://pan.baidu.com/s/1o6ReYy2 密码：djhr