package us.codecraft.webmagic.downloader;
import us.codecraft.webmagic.Page;
import us.codecraft.webmagic.Request;
import us.codecraft.webmagic.Site;
import us.codecraft.webmagic.selector.Html;
/**
* Base class of downloader with some common methods.
*
* @author code4crafter@gmail.com
* @since 0.5.0
*/
public abstract class AbstractDownloader implements Downloader {
/**
* A simple method to download a url.
*
* @param url url
* @return html
*/
public Html download(String url) {
return download(url, null);
}
/**
* A simple method to download a url.
*
* @param url url
* @param charset charset
* @return html
*/
public Html download(String url, String charset) {
Page page = download(new Request(url), Site.me().setCharset(charset).toTask());
return (Html) page.getHtml();
}
protected void onSuccess(Request request) {
}
protected void onError(Request request) {
}
}