android使用Http的Get方式读取网络数据

1、新建android项目</span>

2、在xml文件中添加一个button：

<Button  android:id="@+id/httpGetButton"  android:layout_width="match_parent"  android:layout_height="wrap_content"  android:text="读取数据"/>

3、在Activity中为按钮添加监听事件（android在用http通信时会比较耗时，用AsyncTask处理）：

findViewById(R.id.httpGetButton).setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

new AsyncTask<String, Void, Void>(){

@Override

protected Void doInBackground(String... params) {

try {

<pre name="code" class="java" style="font-size: 14px; line-height: 25.200000762939453px;">URL <span style="font-family: 'Microsoft Yahei', Tahoma, Simsun;">url = new URL(params[0]);</span>

URLConnection connection = url.openConnection();

InputStream is = connection.getInputStream();

InputStreamReader isr = new InputStreamReader(is, "utf-8");

BufferedReader br = new BufferedReader(isr);

String line;

while((line = br.readLine()) != null){

System.out.println(line);

}

br.close();

isr.close();

is.close();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return null;

}

}.execute("http://fanyi.youdao.com/openapi.do?keyfrom=MyHttpGet1111222&key=1405130032&type=data&doctype=json&version=1.1&q=good");//传入URL，这里使用有道翻译提供的API

}

});

4、配置AndroidManifest.xml为项目添加网络链接：

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

5、运行程序查看logcat.