Question

java爬虫怎么获取链

Answer 1

正则表达式

Answer 2

用这个方法：
public class WebSpider {
//获得源码
public static String getURLContext(String urlStr,String charsetName){
StringBuffer sb=new StringBuffer();
try{
URL url =new URL(urlStr);
BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream(), Charset.forName( charsetName)));
String temp="";
while((temp=reader.readLine())!=null){
// System.out.println(temp);
sb.append(temp);
}
}catch(MalformedURLException e){
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return sb.toString();
}