如何让 WebClient 像通常的网络浏览器一样下载外部 css 样式表和图像主体?
最佳答案
我现在正在做的是:
public static final HashMap<String, String> acceptTypes = new HashMap<String, String>(){{
put("html", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
put("img", "image/png,image/*;q=0.8,*/*;q=0.5");
put("script", "*/*");
put("style", "text/css,*/*;q=0.1");
}};
protected void downloadCssAndImages(HtmlPage page) {
String xPathExpression = "//*[name() = 'img' or name() = 'link' and @type = 'text/css']";
List<?> resultList = page.getByXPath(xPathExpression);
Iterator<?> i = resultList.iterator();
while (i.hasNext()) {
try {
HtmlElement el = (HtmlElement) i.next();
String path = el.getAttribute("src").equals("")?el.getAttribute("href"):el.getAttribute("src");
if (path == null || path.equals("")) continue;
URL url = page.getFullyQualifiedUrl(path);
WebRequestSettings wrs = new WebRequestSettings(url);
wrs.setAdditionalHeader("Referer", page.getWebResponse().getRequestSettings().getUrl().toString());
client.addRequestHeader("Accept", acceptTypes.get(el.getTagName().toLowerCase()));
client.getPage(wrs);
} catch (Exception e) {}
}
client.removeRequestHeader("Accept");
}
关于java - 我如何告诉 HtmlUnit 的 WebClient 下载图像和 css?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/2244272/