android 使用imageloader 获取图片时，如果需要带cookie

importandroid.content.Context;
import com.nostra13.universalimageloader.core.download.BaseImageDownloader;
import java.io.IOException;
import java.net.HttpURLConnection;

/**
 *
 */
public class CustomImageDownloader extends BaseImageDownloader {//universal image loader获取图片时,若需要cookie，
    // 需在application中进行配置添加此类。
    public CustomImageDownloader(Context context) {
        super(context);
    }

    @Override
    protected HttpURLConnection createConnection(String url, Object extra) throws IOException {
        // Super...
        HttpURLConnection connection = super.createConnection(url, extra);
//        connection.setRequestProperty("Cookie", MyApplication.getInstance().getCookieString());
        connection.setRequestProperty("Connection", "keep-Alive");
        connection.setRequestProperty("User-Agent", "jsgdMobile");
        return connection;
    }
}