Android HttpClient通过USB向主机发送请求

import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbManager;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

// 获取USB设备的访问权限
UsbManager usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
UsbDevice usbDevice = ...; // 获取USB设备对象
usbManager.requestPermission(usbDevice, PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0));

// 打开与USB设备的连接
UsbDeviceConnection usbConnection = usbManager.openDevice(usbDevice);

// 创建HttpClient实例
HttpClient httpClient = new DefaultHttpClient();

// 创建HttpGet请求
HttpGet httpGet = new HttpGet("http://example.com");

try {
    // 发送请求并获取响应
    HttpResponse response = httpClient.execute(httpGet);
    // 处理响应数据
    // ...
} catch (IOException e) {
    e.printStackTrace();
} finally {
    // 关闭连接
    httpClient.getConnectionManager().shutdown();
    usbConnection.close();
}