Java后台做登录日志功能

HttpServletRequest request = ServletActionContext.getRequest();
System.out.println("浏览器基本信息："+request.getHeader("user-agent"));
System.out.println("客户端系统名称："+System.getProperty("os.name"));
System.out.println("客户端系统版本："+System.getProperty("os.version"));
System.out.println("客户端操作系统位数："+System.getProperty("os.arch"));
System.out.println("HTTP协议版本："+request.getProtocol());
System.out.println("请求编码格式："+request.getCharacterEncoding());
System.out.println("Accept："+request.getHeader("Accept"));
System.out.println("Accept-语言："+request.getHeader("Accept-Language"));
System.out.println("Accept-编码："+request.getHeader("Accept-Encoding"));
System.out.println("Connection："+request.getHeader("Connection"));
System.out.println("Cookie："+request.getHeader("Cookie"));
System.out.println("客户端发出请求时的完整URL"+request.getRequestURL());
System.out.println("请求行中的资源名部分"+request.getRequestURI());
System.out.println("请求行中的参数部分"+request.getRemoteAddr());
System.out.println("客户机所使用的网络端口号"+request.getRemotePort());
System.out.println("WEB服务器的IP地址"+request.getLocalAddr());
System.out.println("WEB服务器的主机名"+request.getLocalName());
System.out.println("客户机请求方式"+request.getMethod());
System.out.println("请求的文件的路径"+request.getServerName());
System.out.println("请求体的数据流"+request.getReader());
BufferedReader br=request.getReader();
String res = "";
while ((res = br.readLine()) != null) {
   System.out.println("request body:" + res);
}
System.out.println("请求所使用的协议名称"+request.getProtocol());
System.out.println("请求中所有参数的名字"+request.getParameterNames());
Enumeration enumNames= request.getParameterNames();
while (enumNames.hasMoreElements()) {
      String key = (String) enumNames.nextElement();
      System.out.println("参数名称："+key);
}