在struts2上获取包含参数的完整的url

Map map = request.getParameterMap();
Iterator it = map.keySet().iterator();
String paramStr = "";
while(it.hasNext()){
	String key = it.next().toString();
	String value = request.getParameter(key);
	paramStr += key + "=" + value + "&";
}
//完整的请求
System.out.println(request.getRequestURL()+"?"+paramStr);