Servlet请求头

@WebServlet("/gethead")
public class ServletHead extends HttpServlet{
@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//获取用户的登录地址
String requestURI = req.getRequestURI();
System.out.println(“用户的请求地址:”+requestURI);
//获取用户是从哪个页面点进来的。
String referer = req.getHeader(“Referer”);
System.out.println(“referer头信息:”+referer);
//获取用户的浏览器信息
String userAgent = req.getHeader(“User-Agent”);
System.out.println(“浏览器信息:”+userAgent);

	//获取用户的ip地址
	String localAddr = req.getLocalAddr();
	System.out.println("ip地址："+localAddr);
	
	//获取请求的方式 get  post
	String method = req.getMethod();
	System.out.println("请求方式;"+method);
	
	//获取实际路径
	String realPath = req.getRealPath("1.jpg");   //获取文件在服务器中的磁盘路径
	System.out.println("实际路径:"+realPath);
}

}