Android Studio 利用Httpurlconnection请求实现注册登录

好的，下面是一个简单的示例代码：

// 注册请求
public void register(String username, String password) {
    try {
        URL url = new URL("http://example.com/register.php");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(5000);
        OutputStream os = conn.getOutputStream();
        String data = "username=" + URLEncoder.encode(username, "UTF-8") + "&password=" + URLEncoder.encode(password, "UTF-8");
        os.write(data.getBytes());
        os.flush();
        os.close();
        int responseCode = conn.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            // 注册成功
        } else {
            // 注册失败
        }
        conn.disconnect();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

// 登录请求
public void login(String username, String password) {
    try {
        URL url = new URL("http://example.com/login.php");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(5000);
        OutputStream os = conn.getOutputStream();
        String data = "username=" + URLEncoder.encode(username, "UTF-8") + "&password=" + URLEncoder.encode(password, "UTF-8");
        os.write(data.getBytes());
        os.flush();
        os.close();
        int responseCode = conn.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            // 登录成功
        } else {
            // 登录失败
        }
        conn.disconnect();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

以上代码中，register() 方法用于发送注册请求，login() 方法用于发送登录请求。其中，需要替换的部分是请求的 URL 和参数，以及请求成功后的处理逻辑。注意，这里使用了 HttpURLConnection 类进行请求。