我是Java新手.
我正在努力做到
import org.apache.http.Header;
Header<NameValuePair> nvps = new HeaderList<NameValuePair>();
//....adding some headers
httppost.setHeaders(nvps);
但是说
The type Header is not generic; it cannot be parameterized with arguments <NameValuePair>
我怎么能这样做？