JAVA 打印HTTP请求头信息

Java.util.Enumeration names = request.getHeaderNames();
System.out.println("===================================================================");
while(names.hasMoreElements()){
String name = (String) names.nextElement();
System.out.println(name + ":" + request.getHeader(name));
}
System.out.println("now service sessionid :"+session.getId());
System.out.println("===================================================================");