我想解析一个简单的网站并从该网站上抓取信息。
我曾经用 DocumentBuilderFactory 解析 XML 文件,我尝试对 html 文件做同样的事情,但它总是陷入无限循环。
URL url = new URL("http://www.deneme.com");
URLConnection uc = url.openConnection();
InputStreamReader input = new InputStreamReader(uc.getInputStream());
BufferedReader in = new BufferedReader(input);
String inputLine;
FileWriter outFile = new FileWriter("orhancan");
PrintWriter out = new PrintWriter(outFile);
while ((inputLine = in.readLine()) != null) {
out.println(inputLine);
}
in.close();
out.close();
File fXmlFile = new File("orhancan");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(fXmlFile);
NodeList prelist = doc.getElementsByTagName("body");
System.out.println(prelist.getLength());
有什么问题?或者有没有更简单的方法从网站上为给定的 html 标签抓取数据?