springboot记录api的访问次数

package com.hellospringboot.entity; import java.util.Date; import java.util.HashMap; import java.util.LinkedList; import java.util.Map; import javax.servlet.http.HttpServletRequest; public class Counter { public Counter() { //开启线程定时处理过期访问记录 new Thread(new Runnable() { @Override public void run() { System.out.println(Thread.currentThread().getName()); while(true){ //休眠500毫秒降低资源消耗 try { Thread.sleep(500L); } catch (InterruptedException e) {} //对遍历map集合中过期访问记录进行清理 for (Map.Entry<String, LinkedList<Date>> entry : map.entrySet()) { for (int i = entry.getValue().size()-1; i >=0; i--) { //判断是否过期,对过期的数据进行处理 if ((System.currentTimeMillis()-entry.getValue().getLast().getTime())>60*1000) { entry.getValue().removeLast(); } } } } } }).start(); } //请求路径 private HttpServletRequest request; // 分类存储API访问路径及其访问时间 private Map<String, LinkedList<Date>> map = new HashMap<>(); // 验证位,校验是否开启访问记数 private boolean flag = false; /** * API访问累加,进行线程同步处理 */ public synchronized void add() { if (flag) { //LinkedList实现增删快 LinkedList<Date> list = map.get(request.getRequestURL().toString()); //初始化linkdList if (list == null) { list = new LinkedList<>(); } //将访问时间存入list集合 list.addFirst(new Date()); //将访问时间的集合放入map map.put(request.getRequestURL().toString(), list); } } /** * API访问累加开启 */ public void start() { flag = true; } /** * API访问累加停止 */ public void stop() { flag = false; } /** * API访问重置 */ public void reset() { stop(); map.clear(); } /* * getter 与 setter */ public Map<String, Integer> getMap() { HashMap<String, Integer> hashMap = new HashMap<>(); for (Map.Entry<String, LinkedList<Date>> entry : map.entrySet()) { hashMap.put(entry.getKey()+" 的总访问此数为:", entry.getValue().size()); } return hashMap; } public void setMap(Map<String, LinkedList<Date>> map) { this.map = map; } public boolean isFlag() { return flag; } public void setFlag(boolean flag) { this.flag = flag; } public HttpServletRequest getRequest() { return request; } public void setRequest(HttpServletRequest request) { this.request = request; } }