public class GetUrlInfo
{
public static void printfInfo(URL url)throws Exception
{
//基本信息
System.out.println("文件 "+url.getFile());
System.out.println("Protocol "+url.getProtocol());//获取URL的协议名称
System.out.println("host "+url.getHost());
System.out.println("端口 "+url.getPort());//获取URl的端口号
System.out.println("路径 "+url.getPath());//获取URL的路径部分
URLConnection c=url.openConnection();
c.connect();
System.out.println("Contend type "+c.getContentType());
System.out.println("Contend Encoding "+c.getContentEncoding());
System.out.println("Contend Length "+c.getContentLength());
System.out.println("Date "+new Date(c.getDate()));
System.out.println("Date "+new Date(c.getLastModified()));
System.out.println("Expriration "+new Date(c.getExpiration()));
if(c instanceof HttpURLConnection)
{
HttpURLConnection h=(HttpURLConnection) c;
System.out.println(" reust Method "+h.getRequestMethod());
System.out.println(" Resonse Message "+h.getResponseMessage());
System.out.println(" Resonse Code "+h.getResponseCode());
}
}
public static void vist(URL url)throws Exception//抓取某网站的内容
{
File file=new File("C:/hhh2.txt");
String tempString;
StringBuffer sb=new StringBuffer();
//InputStream in=new InputStreamReader(url.openStream())
BufferedReader in=new BufferedReader(new InputStreamReader(url.openStream()));
BufferedWriter out=new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file)));
while((tempString=in.readLine())!=null)
{
//out.write(tempString);
//sb.append(tempString);
System.out.println(tempString);
}
in.close();
out.close();
System.out.println(sb.toString());
}
public static void main(String []args)
{
String urlString="https://www.zhihu.com/question/48629658";
try
{
URL url=new URL(urlString);
System.out.println(url.getUserInfo());
vist(url);
//printfInfo(url);
} catch (Exception e)
{
// TODO: handle exception
}
}
}