在客户端网络慢或者服务器响应慢时，用户有时是会频繁刷新页面或重复提交表单的，这样是会给服务器造成不小的负担的，同时在添加数据时有可能造成不必要的麻烦。所以我们在后端也有必要进行防抖操作。
1.自定义注解
/** * @author tzeao */ @target(elementtype.method) // 作用到方法上 @retention(retentionpolicy.runtime) // 运行时有效 public @interface norepg key, t value) { valueoperations operation = redistemplate.opsforvalue(); operation.set(key, value); return operation; } /** * 缓存基本的对象，integer、string、实体类等 * * @param key 缓存的键值 * @param value 缓存的值 * @param timeout 时间 * @param timeunit 时间颗粒度 * @return 缓存的对象 */ public valueoperations setcacheobject(string key, t value, integer timeout, timeunit timeunit) { valueoperations operation = redistemplate.opsforvalue(); operation.set(key, value, timeout, timeunit); return operation; } /** * 获得缓存的基本对象。 * * @param key 缓存键值 * @return 缓存键值对应的数据 */ public t getcacheobject(string key) { valueoperations operation = redistemplate.opsforvalue(); return operation.get(key); } /** * 删除单个对象 * * @param key */ public void deleteobject(string key) { redistemplate.delete(key); } /** * 删除集合对象 * * @param collection */ public void deleteobject(collection collection) { redistemplate.delete(collection); } /** * 缓存list数据 * * @param key 缓存的键值 * @param datalist 待缓存的list数据 * @return 缓存的对象 */ public listoperations setcachelist(string key, list datalist) { listoperations listoperation = redistemplate.opsforlist(); if (null != datalist) { int size = datalist.size(); for (int i = 0; i < size; i ) { listoperation.leftpush(key, datalist.get(i)); } } return listoperation; } /** * 获得缓存的list对象 * * @param key 缓存的键值 * @return 缓存键值对应的数据 */ public list getcachelist(string key) { list datalist = new arraylist<>(); listoperations listoperation = redistemplate.opsforlist(); long size = listoperation.size(key); for (int i = 0; i < size; i ) { datalist.add(listoperation.index(key, i)); } return datalist; } /** * 缓存set * * @param key 缓存键值 * @param dataset 缓存的数据 * @return 缓存数据的对象 */ public boundsetoperations setcacheset(string key, set dataset) { boundsetoperations setoperation = redistemplate.boundsetops(key); iterator it = dataset.iterator(); while (it.hasnext()) { setoperation.add(it.next()); } return setoperation; } /** * 获得缓存的set * * @param key * @return */ public set getcacheset(string key) { set dataset = new hashset<>(); boundsetoperations operation = redistemplate.boundsetops(key); dataset = operation.members(); return dataset; } /** * 缓存map * * @param key * @param datamap * @return */ public hashoperations setcachemap(string key, map datamap) { hashoperations hashoperations = redistemplate.opsforhash(); if (null != datamap) { for (map.entry entry : datamap.entryset()) { hashoperations.put(key, entry.getkey(), entry.getvalue()); } } return hashoperations; } /** * 获得缓存的map * * @param key * @return */ public map getcachemap(string key) { map map = redistemplate.opsforhash().entries(key); return map; } /** * 获得缓存的基本对象列表 * * @param pattern 字符串前缀 * @return 对象列表 */ public collection keys(string pattern) { return redistemplate.keys(pattern); } /** * @param key * @return */ public boolean haskey(string key) { return redistemplate.haskey(key); } public long getexpire(string key) { return redistemplate.getexpire(key); } public valueoperations setbillobject(string key, list> value) { valueoperations operation = redistemplate.opsforvalue(); operation.set(key, (t) value); return operation; } /** * 缓存list> * * @param key 缓存的键值 * @param value 缓存的值 * @param timeout 时间 * @param timeunit 时间颗粒度 * @return 缓存的对象 */ public valueoperations setbillobject(string key, list> value, integer timeout, timeunit timeunit) { valueoperations operation = redistemplate.opsforvalue(); operation.set(key, (t) value, timeout, timeunit); return operation; } /** * 缓存map * * @param key * @param datamap * @return */ public hashoperations setckdbillmap(string key, map datamap) { hashoperations hashoperations = redistemplate.opsforhash(); if (null != datamap) { for (map.entry entry : datamap.entryset()) { hashoperations.put(key, entry.getkey(), entry.getvalue()); } } return hashoperations; } }
4.测试
@norepeatsubmit(name = "test") // 也可以不给名字，这样就会走默认名字 @getmapping("test") public result test() { return result.success("测试阶段！"); }
15秒内重复点击就会给提示
这样就完成了一个防止重复提交、频繁申请的程序
参考：
https://blog.csdn.net/chengmin123456789/article/details/107982095
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