一个很简单的Http获取服务器数据。

来源：互联网发布：网络大电影合作编辑：程序博客网时间：2024/05/04 22:22

public class MainActivity extends Activity {    public static final String PATH = "http://192.168.10.102:8080/MySever/MySever";    Button start_btn;    //创建消息队列    Handler handler = new Handler() {        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            Bundle bundle = msg.getData();            String name = bundle.getString("name");            start_btn.setText(name);        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        start_btn = (Button) findViewById(R.id.btn_1);        start_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {               // MyThread myThread = new MyThread();                //myThread.start();                DomeThread domeThread = new DomeThread();                domeThread.start();            }        });    }    class DomeThread extends Thread {        @Override        public void run() {            List<NameValuePair> parma = new java.util.ArrayList<NameValuePair>();            parma.add(new BasicNameValuePair("name", "张三"));            parma.add(new BasicNameValuePair("password", "123456"));            try {                //请求执行对象                HttpClient client = new DefaultHttpClient();                //设置请求方式                HttpPost post = new HttpPost(PATH);                //绑定参数                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(parma);                //把绑定参数设置到请求对象中                post.setEntity(entity);                //执行请求对象                HttpResponse response = client.execute(post);                //判断是否成功                if (response.getStatusLine().getStatusCode() == 200) {                    //获取服务器数据                    String str = EntityUtils.toString(response.getEntity());                    //获取消息池对象,打开消息池                    Message msg = handler.obtainMessage();                    //创建数据储存对象                    Bundle bundle = new Bundle();                    bundle.putString("name", str);                    //设置Message数据                    msg.setData(bundle);                    //将消息对象发送给消息队列                    handler.sendMessage(msg);                }            } catch (IOException e) {                e.printStackTrace();            }        }    }    /*    *获取服务器数据。    *    **/    class MyThread extends Thread {        String str;        @Override        public void run() {            try {                //构造请求地址                URL url = new URL(PATH);                //打开连接                HttpURLConnection connection = (HttpURLConnection) url.openConnection();                //设置可读取服务器数据                connection.setDoInput(true);                //设置连接超时                connection.setConnectTimeout(5000);                //设置请求方式                connection.setRequestMethod("POST");                //请求连接                connection.connect();                //判断是否连接成功                int code = connection.getResponseCode();                Log.e("tag", code + "");                if (code == 200) {                    //通过Connection获取服务端的输入流                    InputStream is = connection.getInputStream();                    byte[] buffer = new byte[1024];                    int length = 0;                    //读取服务器数据                    while ((length = is.read(buffer)) != -1) {                        str = new String(buffer, 0, length);                        Log.i("tag", str);                    }                }                //冲这个消息池中获取对象。                Message msg = handler.obtainMessage();                //创建数据存放对象                Bundle bundle = new Bundle();                bundle.putString("name", str);                //把数据存放到msg中                msg.setData(bundle);                //hanlder发送数据                handler.sendMessage(msg);            } catch (MalformedURLException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }        }    }}

服务器数据

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {response.setCharacterEncoding("UTF-8");String str = "我草你媽媽";response.setContentType("Charset;UTF-8");OutputStream outputStream = response.getOutputStream();outputStream.write(str.getBytes("UTF-8"));outputStream.close();}

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