{"id":202174,"date":"2025-05-10T13:28:34","date_gmt":"2025-05-10T05:28:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202174\/"},"modified":"2025-05-10T13:28:34","modified_gmt":"2025-05-10T05:28:34","slug":"%e5%9f%ba%e4%ba%8espring-cache%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0caffeineredis%e4%ba%8c%e7%ba%a7%e7%bc%93%e5%ad%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202174\/","title":{"rendered":"\u57fa\u4e8eSpring\u00a0Cache\u5982\u4f55\u5b9e\u73b0Caffeine+Redis\u4e8c\u7ea7\u7f13\u5b58"},"content":{"rendered":"

<\/b> <\/p>\n

\u57fa\u4e8eSpring Cache\u5982\u4f55\u5b9e\u73b0Caffeine+Redis\u4e8c\u7ea7\u7f13\u5b58<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\u300a\u57fa\u4e8eSpring Cache\u5982\u4f55\u5b9e\u73b0Caffeine+Redis\u4e8c\u7ea7\u7f13\u5b58\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9…\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n

\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n

<\/p>\n

\u4e00\u3001\u804a\u804a\u4ec0\u4e48\u662f\u786c\u7f16\u7801\u4f7f\u7528\u7f13\u5b58\uff1f<\/h3>\n

\u5728\u5b66\u4e60Spring Cache\u4e4b\u524d\uff0c\u7b14\u8005\u7ecf\u5e38\u4f1a\u786c\u7f16\u7801\u7684\u65b9\u5f0f\u4f7f\u7528\u7f13\u5b58\u3002<\/p>\n

\u6211\u4eec\u6765\u4e3e\u4e2a\u5b9e\u9645\u4e2d\u7684\u4f8b\u5b50\uff0c\u4e3a\u4e86\u63d0\u5347\u7528\u6237\u4fe1\u606f\u7684\u67e5\u8be2\u6548\u7387\uff0c\u6211\u4eec\u5bf9\u7528\u6237\u4fe1\u606f\u4f7f\u7528\u4e86\u7f13\u5b58\uff0c\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

    @Autowire\n    private UserMapper userMapper;\n\n    @Autowire\n    private RedisCache redisCache;\n\n    \/\/\u67e5\u8be2\u7528\u6237\n    public User getUserById(Long userId) {\n        \/\/\u5b9a\u4e49\u7f13\u5b58key\n        String cacheKey = \"userId_\" + userId;\n        \/\/\u5148\u67e5\u8be2redis\u7f13\u5b58\n        User user = redisCache.get(cacheKey);\n        \/\/\u5982\u679c\u7f13\u5b58\u4e2d\u6709\u5c31\u76f4\u63a5\u8fd4\u56de\uff0c\u4e0d\u518d\u67e5\u8be2\u6570\u636e\u5e93\n        if (user != null) {\n            return user;\n        }\n        \/\/\u6ca1\u6709\u518d\u67e5\u8be2\u6570\u636e\u5e93\n        user = userMapper.getUserById(userId);\n\n        \/\/\u6570\u636e\u5b58\u5165\u7f13\u5b58\uff0c\u8fd9\u6837\u4e0b\u6b21\u67e5\u8be2\u5c31\u80fd\u5230\u7f13\u5b58\u4e2d\u83b7\u53d6\n        if (user != null) {\n            stringCommand.set(cacheKey, user);\n        }\n\n        return user;\n    }<\/pre>\n
\u76f8\u4fe1\u5f88\u591a\u540c\u5b66\u90fd\u5199\u8fc7\u7c7b\u4f3c\u98ce\u683c\u7684\u4ee3\u7801\uff0c\u8fd9\u79cd\u98ce\u683c\u7b26\u5408\u9762\u5411\u8fc7\u7a0b\u7684\u7f16\u7a0b\u601d\u7ef4\uff0c\u975e\u5e38\u5bb9\u6613\u7406\u89e3\u3002\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u7f3a\u70b9\uff1a<\/p>\n
\u4ee3\u7801\u4e0d\u591f\u4f18\u96c5\u3002\u4e1a\u52a1\u903b\u8f91\u6709\u56db\u4e2a\u5178\u578b\u52a8\u4f5c\uff1a\u5b58\u50a8\uff0c\u8bfb\u53d6\uff0c\u4fee\u6539\uff0c\u5220\u9664<\/strong>\u3002\u6bcf\u6b21\u64cd\u4f5c\u90fd\u9700\u8981\u5b9a\u4e49\u7f13\u5b58Key \uff0c\u8c03\u7528\u7f13\u5b58\u547d\u4ee4\u7684API\uff0c\u4ea7\u751f\u8f83\u591a\u7684\u91cd\u590d\u4ee3\u7801\uff1b<\/p>\n
\u7f13\u5b58\u64cd\u4f5c\u548c\u4e1a\u52a1\u903b\u8f91\u4e4b\u95f4\u7684\u4ee3\u7801\u8026\u5408\u5ea6\u9ad8\uff0c\u5bf9\u4e1a\u52a1\u903b\u8f91\u6709\u8f83\u5f3a\u7684\u4fb5\u5165\u6027\u3002\u4fb5\u5165\u6027\u4e3b\u8981\u4f53\u73b0\u5982\u4e0b\u4e24\u70b9\uff1a<\/p>\n
    \n
  • \n
    \u5f00\u53d1\u8054\u8c03\u9636\u6bb5\uff0c\u9700\u8981\u53bb\u6389\u7f13\u5b58\uff0c\u53ea\u80fd\u6ce8\u91ca\u6216\u8005\u4e34\u65f6\u5220\u9664\u7f13\u5b58\u64cd\u4f5c\u4ee3\u7801\uff0c\u4e5f\u5bb9\u6613\u51fa\u9519<\/strong>\uff1b<\/p>\n<\/li>\n
  • \n
    \u67d0\u4e9b\u573a\u666f\u4e0b\uff0c\u9700\u8981\u66f4\u6362\u7f13\u5b58\u7ec4\u4ef6\uff0c\u6bcf\u4e2a\u7f13\u5b58\u7ec4\u4ef6\u6709\u81ea\u5df1\u7684API\uff0c\u66f4\u6362\u6210\u672c\u9887\u9ad8<\/strong>\u3002<\/p>\n<\/li>\n<\/ul>\n
    \u5982\u679c\u8bf4\u662f\u4e0b\u9762\u8fd9\u6837\u7684\uff0c\u662f\u4e0d\u662f\u5c31\u4f18\u96c5\u591a\u4e86\u3002<\/p>\n
    @Mapper\npublic interface UserMapper  {\n    \n    \/**\n     * \u6839\u636e\u7528\u6237id\u83b7\u53d6\u7528\u6237\u4fe1\u606f\n     *\n     * \u5982\u679c\u7f13\u5b58\u4e2d\u6709\u76f4\u63a5\u8fd4\u56de\u7f13\u5b58\u6570\u636e\uff0c\u5982\u679c\u6ca1\u6709\u90a3\u4e48\u5c31\u53bb\u6570\u636e\u5e93\u67e5\u8be2\uff0c\u67e5\u8be2\u5b8c\u518d\u63d2\u5165\u7f13\u5b58\u4e2d\uff0c\u8fd9\u91cc\u7f13\u5b58\u7684key\u524d\u7f00\u4e3acache_user_id_\uff0c+\u4f20\u5165\u7684\u7528\u6237ID\n     *\/\n    @Cacheable(key = \"'cache_user_id_' + #userId\")\n    User getUserById(Long userId);\n}<\/pre>\n
    \u518d\u770b\u5b9e\u73b0\u7c7b<\/p>\n
        @Autowire\n    private UserMapper userMapper;\n\n    \/\/\u67e5\u8be2\u7528\u6237\n    public User getUserById(Long userId) {\n        return userMapper.getUserById(userId);\n    }<\/pre>\n
    \u8fd9\u4e48\u4e00\u770b\u662f\u4e0d\u662f\u5b8c\u5168\u548c\u7f13\u5b58\u5206\u79bb\u5f00\u6765\uff0c\u5982\u679c\u5f00\u53d1\u8054\u8c03\u9636\u6bb5\uff0c\u9700\u8981\u53bb\u6389\u7f13\u5b58\u90a3\u4e48\u76f4\u63a5\u6ce8\u91ca\u6389\u6ce8\u89e3\u5c31\u597d\u4e86\uff0c\u662f\u4e0d\u662f\u975e\u5e38\u5b8c\u7f8e\u3002<\/p>\n
    \u800c\u4e14\u8fd9\u4e00\u6574\u5957\u5b9e\u73b0\u90fd\u4e0d\u8981\u81ea\u5df1\u624b\u52a8\u5199\uff0cSpring Cache\u5c31\u5df2\u7ecf\u5e2e\u6211\u5b9a\u4e49\u597d\u76f8\u5173\u6ce8\u89e3\u548c\u63a5\u53e3\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u6613\u5b9e\u73b0\u4e0a\u9762\u7684\u529f\u80fd\u3002<\/p>\n
    \u4e8c\u3001Spring Cache\u7b80\u4ecb<\/h3>\n
    Spring Cache\u662fSpring-context\u5305\u4e2d\u63d0\u4f9b\u7684\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f\u4f7f\u7528\u7684\u7f13\u5b58\u7ec4\u4ef6\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e9b\u6807\u51c6\u63a5\u53e3\uff0c\u901a\u8fc7\u5b9e\u73b0\u8fd9\u4e9b\u63a5\u53e3\uff0c\u5c31\u53ef\u4ee5\u901a\u8fc7\u5728<\/p>\n
    \u65b9\u6cd5\u4e0a\u589e\u52a0\u6ce8\u89e3\u6765\u5b9e\u73b0\u7f13\u5b58\u3002\u8fd9\u6837\u5c31\u80fd\u591f\u907f\u514d\u7f13\u5b58\u4ee3\u7801\u4e0e\u4e1a\u52a1\u5904\u7406\u8026\u5408\u5728\u4e00\u8d77\u7684\u95ee\u9898\u3002<\/p>\n
    Spring Cache\u6838\u5fc3\u7684\u63a5\u53e3\u5c31\u4e24\u4e2a\uff1aCache<\/code>\u548cCacheManager<\/code><\/p>\n
    1\u3001Cache\u63a5\u53e3<\/h4>\n
    \u8be5\u63a5\u53e3\u5b9a\u4e49\u63d0\u4f9b\u7f13\u5b58\u7684\u5177\u4f53\u64cd\u4f5c\uff0c\u6bd4\u5982\u7f13\u5b58\u7684\u653e\u5165\u3001\u8bfb\u53d6\u3001\u6e05\u7406\uff1a<\/p>\n
    package org.Springframework.cache;\nimport java.util.concurrent.Callable;\n\npublic interface Cache {\n\n\t\/\/ cacheName\uff0c\u7f13\u5b58\u7684\u540d\u5b57\uff0c\u9ed8\u8ba4\u5b9e\u73b0\u4e2d\u4e00\u822c\u662fCacheManager\u521b\u5efaCache\u7684bean\u65f6\u4f20\u5165cacheName\n\tString getName();\n\n\t\/\/\u5f97\u5230\u5e95\u5c42\u4f7f\u7528\u7684\u7f13\u5b58\uff0c\u5982Ehcache\n\tObject getNativeCache();\n\n\t\/\/ \u901a\u8fc7key\u83b7\u53d6\u7f13\u5b58\u503c\uff0c\u6ce8\u610f\u8fd4\u56de\u7684\u662fValueWrapper\uff0c\u4e3a\u4e86\u517c\u5bb9\u5b58\u50a8\u7a7a\u503c\u7684\u60c5\u51b5\uff0c\u5c06\u8fd4\u56de\u503c\u5305\u88c5\u4e86\u4e00\u5c42\uff0c\u901a\u8fc7get\u65b9\u6cd5\u83b7\u53d6\u5b9e\u9645\u503c\n\tValueWrapper get(Object key);\n\n\t\/\/ \u901a\u8fc7key\u83b7\u53d6\u7f13\u5b58\u503c\uff0c\u8fd4\u56de\u7684\u662f\u5b9e\u9645\u503c\uff0c\u5373\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\n\t<T> T get(Object key, Class<T> type);\n\n\t\/\/ \u901a\u8fc7key\u83b7\u53d6\u7f13\u5b58\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528valueLoader.call()\u6765\u8c03\u4f7f\u7528@Cacheable\u6ce8\u89e3\u7684\u65b9\u6cd5\u3002\u5f53@Cacheable\u6ce8\u89e3\u7684sync\u5c5e\u6027\u914d\u7f6e\u4e3atrue\u65f6\u4f7f\u7528\u6b64\u65b9\u6cd5\u3002\n\t\/\/ \u56e0\u6b64\u65b9\u6cd5\u5185\u9700\u8981\u4fdd\u8bc1\u56de\u6e90\u5230\u6570\u636e\u5e93\u7684\u540c\u6b65\u6027\u3002\u907f\u514d\u5728\u7f13\u5b58\u5931\u6548\u65f6\u5927\u91cf\u8bf7\u6c42\u56de\u6e90\u5230\u6570\u636e\u5e93\n\t<T> T get(Object key, Callable<T> valueLoader);\n\n\t\/\/ \u5c06@Cacheable\u6ce8\u89e3\u65b9\u6cd5\u8fd4\u56de\u7684\u6570\u636e\u653e\u5165\u7f13\u5b58\u4e2d\n\tvoid put(Object key, Object value);\n\n\t\/\/ \u5f53\u7f13\u5b58\u4e2d\u4e0d\u5b58\u5728key\u65f6\u624d\u653e\u5165\u7f13\u5b58\u3002\u8fd4\u56de\u503c\u662f\u5f53key\u5b58\u5728\u65f6\u539f\u6709\u7684\u6570\u636e\n\tValueWrapper putIfAbsent(Object key, Object value);\n\n\t\/\/ \u5220\u9664\u7f13\u5b58\n\tvoid evict(Object key);\n\n\t\/\/ \u6e05\u7a7a\u7f13\u5b58\n\tvoid clear();\n\n\t\/\/ \u7f13\u5b58\u8fd4\u56de\u503c\u7684\u5305\u88c5\n\tinterface ValueWrapper {\n\n\t\/\/ \u8fd4\u56de\u5b9e\u9645\u7f13\u5b58\u7684\u5bf9\u8c61\n\t\tObject get();\n\t}\n}<\/pre>\n
    2\u3001CacheManager\u63a5\u53e3<\/h4>\n
    \u4e3b\u8981\u63d0\u4f9bCache\u5b9e\u73b0bean\u7684\u521b\u5efa\uff0c\u6bcf\u4e2a\u5e94\u7528\u91cc\u53ef\u4ee5\u901a\u8fc7cacheName\u6765\u5bf9Cache\u8fdb\u884c\u9694\u79bb\uff0c\u6bcf\u4e2acacheName\u5bf9\u5e94\u4e00\u4e2aCache\u5b9e\u73b0\u3002<\/p>\n
    package org.Springframework.cache;\nimport java.util.Collection;\n\npublic interface CacheManager {\n\n\t\/\/ \u901a\u8fc7cacheName\u521b\u5efaCache\u7684\u5b9e\u73b0bean\uff0c\u5177\u4f53\u5b9e\u73b0\u4e2d\u9700\u8981\u5b58\u50a8\u5df2\u521b\u5efa\u7684Cache\u5b9e\u73b0bean\uff0c\u907f\u514d\u91cd\u590d\u521b\u5efa\uff0c\u4e5f\u907f\u514d\u5185\u5b58\u7f13\u5b58\n        \/\/\u5bf9\u8c61\uff08\u5982Caffeine\uff09\u91cd\u65b0\u521b\u5efa\u540e\u539f\u6765\u7f13\u5b58\u5185\u5bb9\u4e22\u5931\u7684\u60c5\u51b5\n\tCache getCache(String name);\n\n\t\/\/ \u8fd4\u56de\u6240\u6709\u7684cacheName\n\tCollection<String> getCacheNames();\n}<\/pre>\n
    3\u3001\u5e38\u7528\u6ce8\u89e3\u8bf4\u660e<\/h4>\n
    @Cacheable<\/code>\uff1a\u4e3b\u8981\u5e94\u7528\u5230\u67e5\u8be2\u6570\u636e\u7684\u65b9\u6cd5\u4e0a\u3002<\/p>\n
    public @interface Cacheable {\n\n    \/\/ cacheNames\uff0cCacheManager\u5c31\u662f\u901a\u8fc7\u8fd9\u4e2a\u540d\u79f0\u521b\u5efa\u5bf9\u5e94\u7684Cache\u5b9e\u73b0bean\n\t@AliasFor(\"cacheNames\")\n\tString[] value() default {};\n\n\t@AliasFor(\"value\")\n\tString[] cacheNames() default {};\n\n    \/\/ \u7f13\u5b58\u7684key\uff0c\u652f\u6301SpEL\u8868\u8fbe\u5f0f\u3002\u9ed8\u8ba4\u662f\u4f7f\u7528\u6240\u6709\u53c2\u6570\u53ca\u5176\u8ba1\u7b97\u7684hashCode\u5305\u88c5\u540e\u7684\u5bf9\u8c61\uff08SimpleKey\uff09\n\tString key() default \"\";\n\n\t\/\/ \u7f13\u5b58key\u751f\u6210\u5668\uff0c\u9ed8\u8ba4\u5b9e\u73b0\u662fSimpleKeyGenerator\n\tString keyGenerator() default \"\";\n\n\t\/\/ \u6307\u5b9a\u4f7f\u7528\u54ea\u4e2aCacheManager,\u5982\u679c\u53ea\u6709\u4e00\u4e2a\u53ef\u4ee5\u4e0d\u7528\u6307\u5b9a\n\tString cacheManager() default \"\";\n\n\t\/\/ \u7f13\u5b58\u89e3\u6790\u5668\n\tString cacheResolver() default \"\";\n\n\t\/\/ \u7f13\u5b58\u7684\u6761\u4ef6\uff0c\u652f\u6301SpEL\u8868\u8fbe\u5f0f\uff0c\u5f53\u8fbe\u5230\u6ee1\u8db3\u7684\u6761\u4ef6\u65f6\u624d\u7f13\u5b58\u6570\u636e\u3002\u5728\u8c03\u7528\u65b9\u6cd5\u524d\u540e\u90fd\u4f1a\u5224\u65ad\n\tString condition() default \"\";\n        \n    \/\/ \u6ee1\u8db3\u6761\u4ef6\u65f6\u4e0d\u66f4\u65b0\u7f13\u5b58\uff0c\u652f\u6301SpEL\u8868\u8fbe\u5f0f\uff0c\u53ea\u5728\u8c03\u7528\u65b9\u6cd5\u540e\u5224\u65ad\n\tString unless() default \"\";\n\n\t\/\/ \u56de\u6e90\u5230\u5b9e\u9645\u65b9\u6cd5\u83b7\u53d6\u6570\u636e\u65f6\uff0c\u662f\u5426\u8981\u4fdd\u6301\u540c\u6b65\uff0c\u5982\u679c\u4e3afalse\uff0c\u8c03\u7528\u7684\u662fCache.get(key)\u65b9\u6cd5\uff1b\u5982\u679c\u4e3atrue\uff0c\u8c03\u7528\u7684\u662fCache.get(key, Callable)\u65b9\u6cd5\n\tboolean sync() default false;\n\n}<\/pre>\n
    @CacheEvict<\/code>\uff1a\u6e05\u9664\u7f13\u5b58\uff0c\u4e3b\u8981\u5e94\u7528\u5230\u5220\u9664\u6570\u636e\u7684\u65b9\u6cd5\u4e0a\u3002\u76f8\u6bd4Cacheable\u591a\u4e86\u4e24\u4e2a\u5c5e\u6027<\/p>\n
    public @interface CacheEvict {\n\n  \/\/ ...\u76f8\u540c\u5c5e\u6027\u8bf4\u660e\u8bf7\u53c2\u8003@Cacheable\u4e2d\u7684\u8bf4\u660e\n\t\/\/ \u662f\u5426\u8981\u6e05\u9664\u6240\u6709\u7f13\u5b58\u7684\u6570\u636e\uff0c\u4e3afalse\u65f6\u8c03\u7528\u7684\u662fCache.evict(key)\u65b9\u6cd5\uff1b\u4e3atrue\u65f6\u8c03\u7528\u7684\u662fCache.clear()\u65b9\u6cd5\n\tboolean allEntries() default false;\n\n\t\/\/ \u8c03\u7528\u65b9\u6cd5\u4e4b\u524d\u6216\u4e4b\u540e\u6e05\u9664\u7f13\u5b58\n\tboolean beforeInvocation() default false;\n}<\/pre>\n
    @CachePut<\/code>\uff1a\u653e\u5165\u7f13\u5b58\uff0c\u4e3b\u8981\u7528\u5230\u5bf9\u6570\u636e\u6709\u66f4\u65b0\u7684\u65b9\u6cd5\u4e0a\u3002\u5c5e\u6027\u8bf4\u660e\u53c2\u8003@Cacheable<\/p>\n
    @Caching<\/code>\uff1a\u7528\u4e8e\u5728\u4e00\u4e2a\u65b9\u6cd5\u4e0a\u914d\u7f6e\u591a\u79cd\u6ce8\u89e3<\/p>\n
    @EnableCaching<\/code>\uff1a\u542f\u7528Spring cache\u7f13\u5b58\uff0c\u4f5c\u4e3a\u603b\u7684\u5f00\u5173\uff0c\u5728SpringBoot\u7684\u542f\u52a8\u7c7b\u6216\u914d\u7f6e\u7c7b\u4e0a\u9700\u8981\u52a0\u4e0a\u6b64\u6ce8\u89e3\u624d\u4f1a\u751f\u6548<\/p>\n
    \u4e09\u3001\u4f7f\u7528\u4e8c\u7ea7\u7f13\u5b58\u9700\u8981\u601d\u8003\u7684\u4e00\u4e9b\u95ee\u9898\uff1f<\/h3>\n
    \u6211\u4eec\u77e5\u9053\u5173\u7cfb\u6570\u636e\u5e93(Mysql)\u6570\u636e\u6700\u7ec8\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\uff0c\u5982\u679c\u6bcf\u6b21\u90fd\u4ece\u6570\u636e\u5e93\u91cc\u53bb\u8bfb\u53d6\uff0c\u4f1a\u56e0\u4e3a\u78c1\u76d8\u672c\u8eab\u7684IO\u5f71\u54cd\u8bfb\u53d6\u901f\u5ea6\uff0c\u6240\u4ee5\u5c31\u6709\u4e86<\/p>\n
    \u50cfredis\u8fd9\u79cd\u7684\u5185\u5b58\u7f13\u5b58\u3002<\/p>\n
    \u901a\u8fc7\u5185\u5b58\u7f13\u5b58\u786e\u5b9e\u80fd\u591f\u5f88\u5927\u7a0b\u5ea6\u7684\u63d0\u9ad8\u67e5\u8be2\u901f\u5ea6\uff0c\u4f46\u5982\u679c\u540c\u4e00\u67e5\u8be2\u5e76\u53d1\u91cf\u975e\u5e38\u7684\u5927\uff0c\u9891\u7e41\u7684\u67e5\u8be2redis\uff0c\u4e5f\u4f1a\u6709\u660e\u663e\u7684\u7f51\u7edcIO\u4e0a\u7684\u6d88\u8017\uff0c<\/p>\n
    \u90a3\u6211\u4eec\u9488\u5bf9\u8fd9\u79cd\u67e5\u8be2\u975e\u5e38\u9891\u7e41\u7684\u6570\u636e(\u70ed\u70b9key)\uff0c\u6211\u4eec\u662f\u4e0d\u662f\u53ef\u4ee5\u8003\u8651\u5b58\u5230\u5e94\u7528\u5185\u7f13\u5b58\uff0c\u5982\uff1acaffeine\u3002<\/p>\n
    \u5f53\u5e94\u7528\u5185\u7f13\u5b58\u6709\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u65f6\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\uff0c\u800c\u4e0d\u7528\u901a\u8fc7\u7f51\u7edc\u5230redis\u4e2d\u53bb\u83b7\u53d6\uff0c\u8fd9\u6837\u5c31\u5f62\u6210\u4e86\u4e24\u7ea7\u7f13\u5b58\u3002<\/p>\n
    \u5e94\u7528\u5185\u7f13\u5b58\u53eb\u505a\u4e00\u7ea7\u7f13\u5b58\uff0c\u8fdc\u7a0b\u7f13\u5b58\uff08\u5982redis\uff09\u53eb\u505a\u4e8c\u7ea7\u7f13\u5b58<\/strong>\u3002<\/p>\n
    \u6574\u4e2a\u6d41\u7a0b\u5982\u4e0b<\/p>\n
    <\/p>\n
    \u6d41\u7a0b\u770b\u7740\u662f\u5f88\u6e05\u65b0\uff0c\u4f46\u5176\u5b9e\u4e8c\u7ea7\u7f13\u5b58\u9700\u8981\u8003\u8651\u7684\u70b9\u8fd8\u5f88\u591a\u3002<\/p>\n
    1.\u5982\u4f55\u4fdd\u8bc1\u5206\u5e03\u5f0f\u8282\u70b9\u4e00\u7ea7\u7f13\u5b58\u7684\u4e00\u81f4\u6027\uff1f<\/code><\/p>\n
    \u6211\u4eec\u8bf4\u4e00\u7ea7\u7f13\u5b58\u662f\u5e94\u7528\u5185\u7f13\u5b58\uff0c\u90a3\u4e48\u5f53\u4f60\u7684\u9879\u76ee\u90e8\u7f72\u5728\u591a\u4e2a\u8282\u70b9\u7684\u65f6\u5019\uff0c\u5982\u4f55\u4fdd\u8bc1\u5f53\u4f60\u5bf9\u67d0\u4e2akey\u8fdb\u884c\u4fee\u6539\u5220\u9664\u64cd\u4f5c\u65f6\uff0c\u4f7f\u5176\u5b83\u8282\u70b9<\/p>\n
    \u7684\u4e00\u7ea7\u7f13\u5b58\u4e00\u81f4\u5462\uff1f<\/p>\n
    2.\u662f\u5426\u5141\u8bb8\u5b58\u50a8\u7a7a\u503c\uff1f<\/code><\/p>\n
    \u8fd9\u4e2a\u786e\u5b9e\u662f\u9700\u8981\u8003\u8651\u7684\u70b9\u3002\u56e0\u4e3a\u5982\u679c\u67d0\u4e2a\u67e5\u8be2\u7f13\u5b58\u548c\u6570\u636e\u5e93\u4e2d\u90fd\u6ca1\u6709\uff0c\u90a3\u4e48\u5c31\u4f1a\u5bfc\u81f4\u9891\u7e41\u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5bfc\u81f4\u6570\u636e\u5e93Down,\u8fd9\u4e5f\u662f\u6211\u4eec<\/p>\n
    \u5e38\u8bf4\u7684\u7f13\u5b58\u7a7f\u900f\u3002<\/p>\n
    \u4f46\u5982\u679c\u5b58\u50a8\u7a7a\u503c\u5462\uff0c\u56e0\u4e3a\u53ef\u80fd\u4f1a\u5b58\u50a8\u5927\u91cf\u7684\u7a7a\u503c\uff0c\u5bfc\u81f4\u7f13\u5b58\u53d8\u5927\uff0c\u6240\u4ee5\u8fd9\u4e2a\u6700\u597d\u662f\u53ef\u914d\u7f6e\uff0c\u6309\u7167\u4e1a\u52a1\u6765\u51b3\u5b9a\u662f\u5426\u5f00\u542f\u3002<\/p>\n
    3.\u662f\u5426\u9700\u8981\u7f13\u5b58\u9884\u70ed\uff1f<\/code><\/p>\n
    \u4e5f\u5c31\u662f\u8bf4\uff0c\u6211\u4eec\u4f1a\u89c9\u5f97\u67d0\u4e9bkey\u4e00\u5f00\u59cb\u5c31\u4f1a\u975e\u5e38\u7684\u70ed\uff0c\u4e5f\u5c31\u662f\u70ed\u70b9\u6570\u636e\uff0c\u90a3\u4e48\u6211\u4eec\u662f\u5426\u53ef\u4ee5\u4e00\u5f00\u59cb\u5c31\u5148\u5b58\u50a8\u5230\u7f13\u5b58\u4e2d\uff0c\u907f\u514d\u7f13\u5b58\u51fb\u7a7f\u3002<\/p>\n
    4.\u4e00\u7ea7\u7f13\u5b58\u5b58\u50a8\u6570\u91cf\u4e0a\u9650\u7684\u8003\u8651\uff1f<\/code><\/p>\n
    \u65e2\u7136\u4e00\u7ea7\u7f13\u5b58\u662f\u5e94\u7528\u5185\u7f13\u5b58\uff0c\u90a3\u4f60\u662f\u5426\u8003\u8651\u4e00\u7ea7\u7f13\u5b58\u5b58\u50a8\u7684\u6570\u636e\u7ed9\u4e2a\u9650\u5b9a\u6700\u5927\u503c\uff0c\u907f\u514d\u5b58\u50a8\u592a\u591a\u7684\u4e00\u7ea7\u7f13\u5b58\u5bfc\u81f4OOM\u3002<\/p>\n
    5.\u4e00\u7ea7\u7f13\u5b58\u8fc7\u671f\u7b56\u7565\u7684\u8003\u8651\uff1f<\/code><\/p>\n
    \u6211\u4eec\u8bf4redis\u4f5c\u4e3a\u4e8c\u7ea7\u7f13\u5b58\uff0credis<\/code>\u662f\u6dd8\u6c70\u7b56\u7565\u6765\u7ba1\u7406\u7684\u3002\u5177\u4f53\u53ef\u53c2\u8003redis\u76848\u79cd\u6dd8\u6c70\u7b56\u7565\u3002\u90a3\u4f60\u7684\u4e00\u7ea7\u7f13\u5b58\u7b56\u7565\u5462\uff1f\u5c31\u597d\u6bd4\u4f60\u8bbe\u7f6e\u4e00\u7ea7\u7f13\u5b58<\/p>\n
    \u6570\u91cf\u6700\u5927\u4e3a5000\u4e2a,\u90a3\u5f53\u7b2c5001\u4e2a\u8fdb\u6765\u7684\u65f6\u5019\uff0c\u4f60\u662f\u600e\u4e48\u5904\u7406\u5462\uff1f\u662f\u76f4\u63a5\u4e0d\u4fdd\u5b58\uff0c\u8fd8\u662f\u8bf4\u81ea\u5b9a\u4e49LRU\u6216\u8005LFU\u7b97\u6cd5\u53bb\u6dd8\u6c70\u4e4b\u524d\u7684\u6570\u636e\uff1f<\/p>\n
    6.\u4e00\u7ea7\u7f13\u5b58\u8fc7\u671f\u4e86\u5982\u4f55\u6e05\u9664\uff1f<\/code><\/p>\n
    \u6211\u4eec\u8bf4redis\u4f5c\u4e3a\u4e8c\u7ea7\u7f13\u5b58\uff0c\u6211\u4eec\u6709\u5b83\u7684\u7f13\u5b58\u8fc7\u671f\u7b56\u7565(\u5b9a\u65f6\u3001\u5b9a\u671f\u3001\u60f0\u6027)\uff0c\u90a3\u4f60\u7684\u4e00\u7ea7\u7f13\u5b58\u5462\uff0c\u8fc7\u671f\u5982\u4f55\u6e05\u9664\u5462\uff1f<\/p>\n
    \u8fd9\u91cc4\u30015\u30016\u5c0f\u70b9\u5982\u679c\u8bf4\u7528\u6211\u4eec\u4f20\u7edf\u7684Map\u663e\u7136\u5b9e\u73b0\u662f\u5f88\u8d39\u52b2\u7684\uff0c\u4f46\u73b0\u5728\u6709\u66f4\u597d\u7528\u7684\u4e00\u7ea7\u7f13\u5b58\u5e93\u90a3\u5c31\u662fCaffeine<\/code>\u3002<\/p>\n
    \u56db\u3001Caffeine \u7b80\u4ecb<\/h3>\n
    Caffeine\uff0c\u4e00\u4e2a\u7528\u4e8eJava\u7684\u9ad8\u6027\u80fd\u7f13\u5b58\u5e93\u3002<\/p>\n
    \u7f13\u5b58\u548cMap\u4e4b\u95f4\u7684\u4e00\u4e2a\u6839\u672c\u533a\u522b\u662f\u7f13\u5b58\u4f1a\u6e05\u7406\u5b58\u50a8\u7684\u9879\u76ee<\/strong>\u3002<\/p>\n
    1\u3001\u5199\u5165\u7f13\u5b58\u7b56\u7565<\/h4>\n
    Caffeine\u6709\u4e09\u79cd\u7f13\u5b58\u5199\u5165\u7b56\u7565\uff1a\u624b\u52a8<\/code>\u3001\u540c\u6b65\u52a0\u8f7d<\/code>\u548c\u5f02\u6b65\u52a0\u8f7d<\/code>\u3002<\/p>\n
    2\u3001\u7f13\u5b58\u503c\u7684\u6e05\u7406\u7b56\u7565<\/h4>\n
    Caffeine\u6709\u4e09\u79cd\u7f13\u5b58\u503c\u7684\u6e05\u7406\u7b56\u7565\uff1a\u57fa\u4e8e\u5927\u5c0f<\/code>\u3001\u57fa\u4e8e\u65f6\u95f4<\/code>\u548c\u57fa\u4e8e\u5f15\u7528<\/code>\u3002<\/p>\n
    \u57fa\u4e8e\u5bb9\u91cf<\/code>\uff1a\u5f53\u7f13\u5b58\u5927\u5c0f\u8d85\u8fc7\u914d\u7f6e\u7684\u5927\u5c0f\u9650\u5236\u65f6\u4f1a\u53d1\u751f\u56de\u6536\u3002<\/p>\n
    \u57fa\u4e8e\u65f6\u95f4<\/code>\uff1a<\/p>\n
      \n
    • \n
      \u5199\u5165\u540e\u5230\u671f\u7b56\u7565\u3002<\/p>\n<\/li>\n
    • \n
      \u8bbf\u95ee\u540e\u8fc7\u671f\u7b56\u7565\u3002<\/p>\n<\/li>\n
    • \n
      \u5230\u671f\u65f6\u95f4\u7531 Expiry \u5b9e\u73b0\u72ec\u81ea\u8ba1\u7b97\u3002<\/p>\n<\/li>\n<\/ul>\n
      \u57fa\u4e8e\u5f15\u7528<\/code>\uff1a\u542f\u7528\u57fa\u4e8e\u7f13\u5b58\u952e\u503c\u7684\u5783\u573e\u56de\u6536\u3002<\/p>\n
        \n
      • \n
        Java\u79cd\u6709\u56db\u79cd\u5f15\u7528\uff1a\u5f3a\u5f15\u7528\uff0c\u8f6f\u5f15\u7528\uff0c\u5f31\u5f15\u7528\u548c\u865a\u5f15\u7528\uff0ccaffeine\u53ef\u4ee5\u5c06\u503c\u5c01\u88c5\u6210\u5f31\u5f15\u7528\u6216\u8f6f\u5f15\u7528\u3002<\/p>\n<\/li>\n
      • \n
        \u8f6f\u5f15\u7528\uff1a\u5982\u679c\u4e00\u4e2a\u5bf9\u8c61\u53ea\u5177\u6709\u8f6f\u5f15\u7528\uff0c\u5219\u5185\u5b58\u7a7a\u95f4\u8db3\u591f\uff0c\u5783\u573e\u56de\u6536\u5668\u5c31\u4e0d\u4f1a\u56de\u6536\u5b83\uff1b\u5982\u679c\u5185\u5b58\u7a7a\u95f4\u4e0d\u8db3\u4e86\uff0c\u5c31\u4f1a\u56de\u6536\u8fd9\u4e9b\u5bf9\u8c61\u7684\u5185\u5b58\u3002<\/p>\n<\/li>\n
      • \n
        \u5f31\u5f15\u7528\uff1a\u5728\u5783\u573e\u56de\u6536\u5668\u7ebf\u7a0b\u626b\u63cf\u5b83\u6240\u7ba1\u8f96\u7684\u5185\u5b58\u533a\u57df\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e00\u65e6\u53d1\u73b0\u4e86\u53ea\u5177\u6709\u5f31\u5f15\u7528\u7684\u5bf9\u8c61\uff0c\u4e0d\u7ba1\u5f53\u524d\u5185\u5b58\u7a7a\u95f4\u8db3\u591f\u4e0e\u5426\uff0c\u90fd\u4f1a
        \u56de\u6536\u5b83\u7684\u5185\u5b58\u3002<\/p>\n<\/li>\n<\/ul>\n
        3\u3001\u7edf\u8ba1<\/h4>\n
        Caffeine\u63d0\u4f9b\u4e86\u4e00\u79cd\u8bb0\u5f55\u7f13\u5b58\u4f7f\u7528\u7edf\u8ba1\u4fe1\u606f\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u7f13\u5b58\u5f53\u524d\u7684\u72b6\u6001\uff0c\u4ee5\u8bc4\u4f30\u7f13\u5b58\u7684\u5065\u5eb7\u7a0b\u5ea6\u4ee5\u53ca\u7f13\u5b58\u547d\u4e2d\u7387\u7b49\uff0c\u65b9\u4fbf\u540e<\/p>\n
        \u7eed\u8c03\u6574\u53c2\u6570\u3002<\/p>\n
        4\u3001\u9ad8\u6548\u7684\u7f13\u5b58\u6dd8\u6c70\u7b97\u6cd5<\/h4>\n
        \u7f13\u5b58\u6dd8\u6c70\u7b97\u6cd5\u7684\u4f5c\u7528\u662f\u5728\u6709\u9650\u7684\u8d44\u6e90\u5185\uff0c\u5c3d\u53ef\u80fd\u8bc6\u522b\u51fa\u54ea\u4e9b\u6570\u636e\u5728\u77ed\u65f6\u95f4\u4f1a\u88ab\u91cd\u590d\u5229\u7528\uff0c\u4ece\u800c\u63d0\u9ad8\u7f13\u5b58\u7684\u547d\u4e2d\u7387\u3002\u5e38\u7528\u7684\u7f13\u5b58\u6dd8\u6c70\u7b97\u6cd5\u6709<\/p>\n
        LRU\u3001LFU\u3001FIFO\u7b49\u3002<\/p>\n
        FIFO\uff1a\u5148\u8fdb\u5148\u51fa\u3002\u9009\u62e9\u6700\u5148\u8fdb\u5165\u7684\u6570\u636e\u4f18\u5148\u6dd8\u6c70\u3002\nLRU\uff1a\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u3002\u9009\u62e9\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u6570\u636e\u4f18\u5148\u6dd8\u6c70\u3002\nLFU\uff1a\u6700\u4e0d\u7ecf\u5e38\u4f7f\u7528\u3002\u9009\u62e9\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u88ab\u4f7f\u7528\u6b21\u6570\u6700\u5c11\u7684\u6570\u636e\u4f18\u5148\u6dd8\u6c70\u3002<\/pre>\n
        LRU\uff08Least Recently Used\uff09\u7b97\u6cd5\u8ba4\u4e3a\u6700\u8fd1\u8bbf\u95ee\u8fc7\u7684\u6570\u636e\u5c06\u6765\u88ab\u8bbf\u95ee\u7684\u51e0\u7387\u4e5f\u66f4\u9ad8\u3002<\/p>\n
        LRU\u901a\u5e38\u4f7f\u7528\u94fe\u8868\u6765\u5b9e\u73b0\uff0c\u5982\u679c\u6570\u636e\u6dfb\u52a0\u6216\u8005\u88ab\u8bbf\u95ee\u5230\u5219\u628a\u6570\u636e\u79fb\u52a8\u5230\u94fe\u8868\u7684\u5934\u90e8\uff0c\u94fe\u8868\u7684\u5934\u90e8\u4e3a\u70ed\u6570\u636e\uff0c\u94fe\u8868\u7684\u5c3e\u90e8\u5982\u51b7\u6570\u636e\uff0c\u5f53<\/p>\n
        \u6570\u636e\u6ee1\u65f6\uff0c\u6dd8\u6c70\u5c3e\u90e8\u7684\u6570\u636e\u3002<\/p>\n
        LFU\uff08Least Frequently Used\uff09\u7b97\u6cd5\u6839\u636e\u6570\u636e\u7684\u5386\u53f2\u8bbf\u95ee\u9891\u7387\u6765\u6dd8\u6c70\u6570\u636e\uff0c\u5176\u6838\u5fc3\u601d\u60f3\u662f\u201c\u5982\u679c\u6570\u636e\u8fc7\u53bb\u88ab\u8bbf\u95ee\u591a\u6b21\uff0c\u90a3\u4e48\u5c06\u6765\u88ab\u8bbf\u95ee<\/p>\n
        \u7684\u9891\u7387\u4e5f\u66f4\u9ad8\u201d\u3002\u6839\u636eLFU\u7684\u601d\u60f3\uff0c\u5982\u679c\u60f3\u8981\u5b9e\u73b0\u8fd9\u4e2a\u7b97\u6cd5\uff0c\u9700\u8981\u989d\u5916\u7684\u4e00\u5957\u5b58\u50a8\u7528\u6765\u5b58\u6bcf\u4e2a\u5143\u7d20\u7684\u8bbf\u95ee\u6b21\u6570\uff0c\u4f1a\u9020\u6210\u5185\u5b58\u8d44\u6e90\u7684\u6d6a\u8d39\u3002<\/p>\n
        Caffeine\u91c7\u7528\u4e86\u4e00\u79cd\u7ed3\u5408LRU\u3001LFU\u4f18\u70b9\u7684\u7b97\u6cd5\uff1aW-TinyLFU<\/code>\uff0c\u5176\u7279\u70b9\uff1a\u9ad8\u547d\u4e2d\u7387\u3001\u4f4e\u5185\u5b58\u5360\u7528\u3002<\/p>\n
        5\u3001\u5176\u4ed6\u8bf4\u660e<\/h4>\n
        Caffeine\u7684\u5e95\u5c42\u6570\u636e\u5b58\u50a8\u91c7\u7528ConcurrentHashMap\u3002\u56e0\u4e3aCaffeine\u9762\u5411JDK8\uff0c\u5728jdk8\u4e2dConcurrentHashMap\u589e\u52a0\u4e86\u7ea2\u9ed1\u6811\uff0c\u5728hash\u51b2\u7a81<\/p>\n
        \u4e25\u91cd\u65f6\u4e5f\u80fd\u6709\u826f\u597d\u7684\u8bfb\u6027\u80fd\u3002<\/p>\n
        \u4e94\u3001\u57fa\u4e8eSpring Cache\u5b9e\u73b0\u4e8c\u7ea7\u7f13\u5b58(Caffeine+Redis)<\/h3>\n
        \u524d\u9762\u8bf4\u4e86\uff0c\u4f7f\u7528\u4e86redis\u7f13\u5b58\uff0c\u4e5f\u4f1a\u5b58\u5728\u4e00\u5b9a\u7a0b\u5ea6\u7684\u7f51\u7edc\u4f20\u8f93\u4e0a\u7684\u6d88\u8017\uff0c\u6240\u4ee5\u4f1a\u8003\u8651\u5e94\u7528\u5185\u7f13\u5b58\uff0c\u4f46\u6709\u70b9\u5f88\u91cd\u8981\u7684\u8981\u8bb0\u4f4f:<\/p>\n
        \u5e94\u7528\u5185\u7f13\u5b58\u53ef\u4ee5\u7406\u89e3\u6210\u6bd4redis\u7f13\u5b58\u66f4\u73cd\u60dc\u7684\u8d44\u6e90\uff0c\u6240\u4ee5\uff0ccaffeine \u4e0d\u9002\u7528\u4e8e\u6570\u636e\u91cf\u5927\uff0c\u5e76\u4e14\u7f13\u5b58\u547d\u4e2d\u7387\u6781\u4f4e\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u5982\u7528\u6237\u7ef4\u5ea6\u7684\u7f13\u5b58\u3002<\/p>\n
        \u5f53\u524d\u9879\u76ee\u9488\u5bf9\u5e94\u7528\u90fd\u90e8\u7f72\u4e86\u591a\u4e2a\u8282\u70b9\uff0c\u4e00\u7ea7\u7f13\u5b58\u662f\u5728\u5e94\u7528\u5185\u7684\u7f13\u5b58\uff0c\u6240\u4ee5\u5f53\u5bf9\u6570\u636e\u66f4\u65b0\u548c\u6e05\u9664\u65f6\uff0c\u9700\u8981\u901a\u77e5\u6240\u6709\u8282\u70b9\u8fdb\u884c\u6e05\u7406\u7f13\u5b58\u7684\u64cd\u4f5c\u3002<\/p>\n
        \u53ef\u4ee5\u6709\u591a\u79cd\u65b9\u5f0f\u6765\u5b9e\u73b0\u8fd9\u79cd\u6548\u679c\uff0c\u6bd4\u5982\uff1azookeeper\u3001MQ\u7b49\uff0c\u4f46\u662f\u65e2\u7136\u7528\u4e86redis\u7f13\u5b58\uff0credis\u672c\u8eab\u662f\u6709\u652f\u6301\u8ba2\u9605\/\u53d1\u5e03\u529f\u80fd\u7684\uff0c\u6240\u4ee5\u5c31<\/p>\n
        \u4e0d\u4f9d\u8d56\u5176\u4ed6\u7ec4\u4ef6\u4e86\uff0c\u76f4\u63a5\u4f7f\u7528redis\u7684\u901a\u9053\u6765\u901a\u77e5\u5176\u4ed6\u8282\u70b9\u8fdb\u884c\u6e05\u7406\u7f13\u5b58\u7684\u64cd\u4f5c\u3002<\/p>\n
        \u5f53\u67d0\u4e2akey\u8fdb\u884c\u66f4\u65b0\u5220\u9664\u64cd\u4f5c\u65f6\uff0c\u901a\u8fc7\u53d1\u5e03\u8ba2\u9605\u7684\u65b9\u5f0f\u901a\u77e5\u5176\u5b83\u8282\u70b9\u8fdb\u884c\u5220\u9664\u8be5key\u672c\u5730\u7684\u4e00\u7ea7\u7f13\u5b58\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
        \u5177\u4f53\u5177\u4f53\u9879\u76ee\u4ee3\u7801\u8fd9\u91cc\u5c31\u4e0d\u518d\u7c98\u8d34\u51fa\u6765\u4e86\uff0c\u8fd9\u6837\u53ea\u7c98\u8d34\u5982\u4f55\u5f15\u7528\u8fd9\u4e2astarter\u5305\u3002<\/p>\n
        1\u3001maven\u5f15\u5165\u4f7f\u7528<\/h4>\n
           <dependency>\n            <groupId>com.jincou<\/groupId>\n            <artifactId>redis-caffeine-cache-starter<\/artifactId>\n            <version>1.0.0<\/version>\n   <\/dependency><\/pre>\n
        2\u3001application.yml<\/h4>\n
        \u6dfb\u52a0\u4e8c\u7ea7\u7f13\u5b58\u76f8\u5173\u914d\u7f6e<\/p>\n
        # \u4e8c\u7ea7\u7f13\u5b58\u914d\u7f6e\n# \u6ce8\uff1acaffeine \u4e0d\u9002\u7528\u4e8e\u6570\u636e\u91cf\u5927\uff0c\u5e76\u4e14\u7f13\u5b58\u547d\u4e2d\u7387\u6781\u4f4e\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u5982\u7528\u6237\u7ef4\u5ea6\u7684\u7f13\u5b58\u3002\u8bf7\u614e\u91cd\u9009\u62e9\u3002\nl2cache:\n  config:\n    # \u662f\u5426\u5b58\u50a8\u7a7a\u503c\uff0c\u9ed8\u8ba4true\uff0c\u9632\u6b62\u7f13\u5b58\u7a7f\u900f\n    allowNullValues: true\n    # \u7ec4\u5408\u7f13\u5b58\u914d\u7f6e\n    composite:\n      # \u662f\u5426\u5168\u90e8\u542f\u7528\u4e00\u7ea7\u7f13\u5b58\uff0c\u9ed8\u8ba4false\n      l1AllOpen: false\n      # \u662f\u5426\u624b\u52a8\u542f\u7528\u4e00\u7ea7\u7f13\u5b58\uff0c\u9ed8\u8ba4false\n      l1Manual: true\n      # \u624b\u52a8\u914d\u7f6e\u8d70\u4e00\u7ea7\u7f13\u5b58\u7684\u7f13\u5b58key\u96c6\u5408\uff0c\u9488\u5bf9\u5355\u4e2akey\u7ef4\u5ea6\n      l1ManualKeySet:\n      - userCache:user01\n      - userCache:user02\n      - userCache:user03\n      # \u624b\u52a8\u914d\u7f6e\u8d70\u4e00\u7ea7\u7f13\u5b58\u7684\u7f13\u5b58\u540d\u5b57\u96c6\u5408\uff0c\u9488\u5bf9cacheName\u7ef4\u5ea6\n      l1ManualCacheNameSet:\n      - userCache\n      - goodsCache\n    # \u4e00\u7ea7\u7f13\u5b58\n    caffeine:\n      # \u662f\u5426\u81ea\u52a8\u5237\u65b0\u8fc7\u671f\u7f13\u5b58 true \u662f false \u5426\n      autoRefreshExpireCache: false\n      # \u7f13\u5b58\u5237\u65b0\u8c03\u5ea6\u7ebf\u7a0b\u6c60\u7684\u5927\u5c0f\n      refreshPoolSize: 2\n      # \u7f13\u5b58\u5237\u65b0\u7684\u9891\u7387(\u79d2)\n      refreshPeriod: 10\n      # \u5199\u5165\u540e\u8fc7\u671f\u65f6\u95f4(\u79d2)\n      expireAfterWrite: 180\n      # \u8bbf\u95ee\u540e\u8fc7\u671f\u65f6\u95f4(\u79d2)\n      expireAfterAccess: 180\n      # \u521d\u59cb\u5316\u5927\u5c0f\n      initialCapacity: 1000\n      # \u6700\u5927\u7f13\u5b58\u5bf9\u8c61\u4e2a\u6570\uff0c\u8d85\u8fc7\u6b64\u6570\u91cf\u65f6\u4e4b\u524d\u653e\u5165\u7684\u7f13\u5b58\u5c06\u5931\u6548\n      maximumSize: 3000\n\n    # \u4e8c\u7ea7\u7f13\u5b58\n    redis:\n      # \u5168\u5c40\u8fc7\u671f\u65f6\u95f4\uff0c\u5355\u4f4d\u6beb\u79d2\uff0c\u9ed8\u8ba4\u4e0d\u8fc7\u671f\n      defaultExpiration: 300000\n      # \u6bcf\u4e2acacheName\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u5355\u4f4d\u6beb\u79d2\uff0c\u4f18\u5148\u7ea7\u6bd4defaultExpiration\u9ad8\n      expires: {userCache: 300000,goodsCache: 50000}\n      # \u7f13\u5b58\u66f4\u65b0\u65f6\u901a\u77e5\u5176\u4ed6\u8282\u70b9\u7684topic\u540d\u79f0 \u9ed8\u8ba4 cache:redis:caffeine:topic\n      topic: cache:redis:caffeine:topic<\/pre>\n
        3\u3001\u542f\u52a8\u7c7b\u4e0a\u589e\u52a0@EnableCaching<\/h4>\n
        \/**\n *  \u542f\u52a8\u7c7b\n *\/\n@EnableCaching\n@SpringBootApplication\npublic class CacheApplication {\n\n\tpublic static void main(String[] args) {\n\t\tSpringApplication.run(CacheApplication.class, args);\n\t}\n\n}<\/pre>\n
        4\u3001\u5728\u9700\u8981\u7f13\u5b58\u7684\u65b9\u6cd5\u4e0a\u589e\u52a0@Cacheable\u6ce8\u89e3<\/h4>\n
        \/**\n *  \u6d4b\u8bd5\n *\/\n@Service\npublic class CaffeineCacheService {\n\n    private final Logger logger = LoggerFactory.getLogger(CaffeineCacheService.class);\n\n    \/**\n     * \u7528\u4e8e\u6a21\u62dfdb\n     *\/\n    private static Map<String, UserDTO> userMap = new HashMap<>();\n\n    {\n        userMap.put(\"user01\", new UserDTO(\"1\", \"\u5f20\u4e09\"));\n        userMap.put(\"user02\", new UserDTO(\"2\", \"\u674e\u56db\"));\n        userMap.put(\"user03\", new UserDTO(\"3\", \"\u738b\u4e94\"));\n        userMap.put(\"user04\", new UserDTO(\"4\", \"\u8d75\u516d\"));\n    }\n\n    \/**\n     * \u83b7\u53d6\u6216\u52a0\u8f7d\u7f13\u5b58\u9879\n     *\/\n    @Cacheable(key = \"'cache_user_id_' + #userId\", value = \"userCache\")\n    public UserDTO queryUser(String userId) {\n        UserDTO userDTO = userMap.get(userId);\n        try {\n            Thread.sleep(1000);\/\/ \u6a21\u62df\u52a0\u8f7d\u6570\u636e\u7684\u8017\u65f6\n        } catch (InterruptedException e) {\n            e.printStackTrace();\n        }\n        logger.info(\"\u52a0\u8f7d\u6570\u636e:{}\", userDTO);\n        return userDTO;\n    }\n\n\n    \/**\n     * \u83b7\u53d6\u6216\u52a0\u8f7d\u7f13\u5b58\u9879\n     * <p>\n     * \u6ce8\uff1a\u56e0\u5e95\u5c42\u662f\u57fa\u4e8ecaffeine\u6765\u5b9e\u73b0\u4e00\u7ea7\u7f13\u5b58\uff0c\u6240\u4ee5\u5229\u7528\u7684caffeine\u672c\u8eab\u7684\u540c\u6b65\u673a\u5236\u6765\u5b9e\u73b0\n     * sync=true \u5219\u8868\u793a\u5e76\u53d1\u573a\u666f\u4e0b\u540c\u6b65\u52a0\u8f7d\u7f13\u5b58\u9879\uff0c\n     * sync=true\uff0c\u662f\u901a\u8fc7get(Object key, Callable<T> valueLoader)\u6765\u83b7\u53d6\u6216\u52a0\u8f7d\u7f13\u5b58\u9879\uff0c\u6b64\u65f6valueLoader\uff08\u52a0\u8f7d\u7f13\u5b58\u9879\u7684\u5177\u4f53\u903b\u8f91\uff09\u4f1a\u88ab\u7f13\u5b58\u8d77\u6765\uff0c\u6240\u4ee5CaffeineCache\u5728\u5b9a\u65f6\u5237\u65b0\u8fc7\u671f\u7f13\u5b58\u65f6\uff0c\u7f13\u5b58\u9879\u8fc7\u671f\u5219\u4f1a\u91cd\u65b0\u52a0\u8f7d\u3002\n     * sync=false\uff0c\u662f\u901a\u8fc7get(Object key)\u6765\u83b7\u53d6\u7f13\u5b58\u9879\uff0c\u7531\u4e8e\u6ca1\u6709valueLoader\uff08\u52a0\u8f7d\u7f13\u5b58\u9879\u7684\u5177\u4f53\u903b\u8f91\uff09\uff0c\u6240\u4ee5CaffeineCache\u5728\u5b9a\u65f6\u5237\u65b0\u8fc7\u671f\u7f13\u5b58\u65f6\uff0c\u7f13\u5b58\u9879\u8fc7\u671f\u5219\u4f1a\u88ab\u6dd8\u6c70\u3002\n     * <p>\n     *\/\n    @Cacheable(value = \"userCache\", key = \"#userId\", sync = true)\n    public List<UserDTO> queryUserSyncList(String userId) {\n        UserDTO userDTO = userMap.get(userId);\n        List<UserDTO> list = new ArrayList();\n        list.add(userDTO);\n        logger.info(\"\u52a0\u8f7d\u6570\u636e:{}\", list);\n        return list;\n    }\n\n    \/**\n     * \u66f4\u65b0\u7f13\u5b58\n     *\/\n    @CachePut(value = \"userCache\", key = \"#userId\")\n    public UserDTO putUser(String userId, UserDTO userDTO) {\n        return userDTO;\n    }\n\n    \/**\n     * \u6dd8\u6c70\u7f13\u5b58\n     *\/\n    @CacheEvict(value = \"userCache\", key = \"#userId\")\n    public String evictUserSync(String userId) {\n        return userId;\n    }\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"
        \u57fa\u4e8eSpring Ca...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-202174","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202174"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202174\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}