| 提交 | 用户 | 时间 | ||
| e57a89 | 1 | package com.jcdm.common.core.redis; |
| 懒 | 2 | |
| 3 | import org.springframework.cache.Cache; | |
| 4 | import org.springframework.cache.support.SimpleValueWrapper; | |
| 5 | import org.springframework.stereotype.Component; | |
| 6 | ||
| 7 | import java.util.Collection; | |
| 8 | import java.util.Map; | |
| 9 | import java.util.Objects; | |
| 10 | import java.util.concurrent.Callable; | |
| 11 | import java.util.concurrent.ConcurrentHashMap; | |
| 12 | ||
| 13 | @Component | |
| 14 | public class MyCache implements Cache { | |
| 15 | ||
| 16 | // 使用ConcurrentHashMap作为数据的存储 | |
| 17 | private Map<String, Object> storage = new ConcurrentHashMap<>(); | |
| 18 | ||
| 19 | // getName获取cache的名称，存取数据的时候用来区分是针对哪个cache操作 | |
| 20 | @Override | |
| 21 | public String getName() { | |
| 22 | return null; | |
| 23 | } | |
| 24 | ||
| 25 | @Override | |
| 26 | public Object getNativeCache() { | |
| 27 | return null; | |
| 28 | } | |
| 29 | ||
| 30 | public boolean hasKey(String key){ | |
| 31 | return storage.containsKey(key); | |
| 32 | } | |
| 33 | ||
| 34 | @Override | |
| 35 | public ValueWrapper get(Object key) { | |
| 36 | String k = key.toString(); | |
| 37 | Object value = storage.get(k); | |
| 38 | ||
| 39 | // 注意返回的数据，要和存放时接收到数据保持一致，要将数据反序列化回来。 | |
| 40 | return Objects.isNull(value) ? null : new SimpleValueWrapper(value); | |
| 41 | } | |
| 42 | ||
| 43 | @Override | |
| 44 | public <T> T get(Object key, Class<T> type) { | |
| 45 | return null; | |
| 46 | } | |
| 47 | ||
| 48 | @Override | |
| 49 | public <T> T get(Object key, Callable<T> valueLoader) { | |
| 50 | return null; | |
| 51 | } | |
| 52 | ||
| 53 | // put方法，就是执行将数据进行缓存 | |
| 54 | @Override | |
| 55 | public void put(Object key, Object value) { | |
| 56 | if (Objects.isNull(value)) { | |
| 57 | return; | |
| 58 | } | |
| 59 | //存值 | |
| 60 | storage.put(key.toString(), value); | |
| 61 | } | |
| 62 | ||
| 63 | // evict方法，是用来清除某个缓存项 | |
| 64 | @Override | |
| 65 | public void evict(Object key) { | |
| 66 | storage.remove(key.toString()); | |
| 67 | } | |
| 68 | ||
| 69 | // 删除集合 | |
| 70 | public boolean deleteObject(final Collection collection){ | |
| 71 | collection.forEach(o -> { | |
| 72 | storage.remove(o.toString()); | |
| 73 | } ); | |
| 74 | return true; | |
| 75 | } | |
| 76 | ||
| 77 | // 获取所有的keys | |
| 78 | public Collection<String> keys(final String pattern){ | |
| 79 | return storage.keySet(); | |
| 80 | } | |
| 81 | ||
| 82 | @Override | |
| 83 | public void clear() { | |
| 84 | ||
| 85 | } | |
| 86 | } | |
