android网络编程之HttpUrlConnection的讲解--GET请求

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

public class GetActivity extends Activity {
    private TextView mTvMsg;
    
    private String result;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_get);
        
        initView();
    }
    
    private void initView(){
        mTvMsg = (TextView) findViewById(R.id.tv_servlet_msg);
        
        new Thread(getThread).start();
    }
    
    private Thread getThread = new Thread(){
        public void run() {
            HttpURLConnection connection = null;
            try {
                URL url = new URL("http://192.168.23.1:8080/TestProject/GetTest");
                connection = (HttpURLConnection) url.openConnection();
                // 设置请求方法，默认是GET
                connection.setRequestMethod("GET");
                // 设置字符集
                connection.setRequestProperty("Charset", "UTF-8");
                // 设置文件类型
                connection.setRequestProperty("Content-Type", "text/xml; charset=UTF-8");
                // 设置请求参数，可通过Servlet的getHeader()获取
                connection.setRequestProperty("Cookie", "AppName=" + URLEncoder.encode("你好", "UTF-8"));
                // 设置自定义参数
                connection.setRequestProperty("MyProperty", "this is me!");
                
                if(connection.getResponseCode() == 200){
                    InputStream is = connection.getInputStream();
                    result = StringStreamUtil.inputStreamToString(is);
                    
                    Message msg = Message.obtain();
                    msg.what = 0;
                    getHandler.sendMessage(msg);
                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } finally {
                if(connection != null){
                    connection.disconnect();
                }
            }
        };
    };
    
    private Handler getHandler = new Handler(){
        public void handleMessage(android.os.Message msg) {
            if(msg.what == 0 && result!=null){
                mTvMsg.setText(result);
            }
        };
    };
}