{"id":218,"date":"2021-08-28T13:26:15","date_gmt":"2021-08-28T05:26:15","guid":{"rendered":"https:\/\/fugary.com\/?p=218"},"modified":"2021-08-28T13:26:15","modified_gmt":"2021-08-28T05:26:15","slug":"springboot%e5%bc%95%e5%85%a5caffeine%e7%bc%93%e5%ad%98%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/fugary.com\/?p=218","title":{"rendered":"SpringBoot\u5f15\u5165Caffeine\u7f13\u5b58\u914d\u7f6e"},"content":{"rendered":"

SpringBoot\u5f15\u5165Caffeine\u7f13\u5b58\u914d\u7f6e<\/h2>\n

\u4e00\u822c\u5728\u9879\u76ee\u4e2d\u4f7f\u7528Redis\u4f5c\u4e3a\u5206\u5e03\u5f0f\u7f13\u5b58\uff0c\u4f46\u662f\u8fd8\u6709\u6709\u5f88\u591a\u573a\u666f\u9700\u8981\u4f7f\u7528\u672c\u5730\u7f13\u5b58\uff0c\u5b58\u50a8\u4e00\u4e9b\u70ed\u70b9\u7f13\u5b58\u6570\u636e\u7b49\uff0c\u76ee\u524dSpring\u652f\u6301\u5f88\u591a\u672c\u5730\u7f13\u5b58\u6846\u67b6\uff0c\u5982ehcache\uff0ccaffeine\uff0cjcache\u7b49\uff0c\u4e0d\u8fc7\u76ee\u524dguava cache\u5df2\u7ecf\u4e0d\u5728spring\u7684\u9ed8\u8ba4\u652f\u6301\u4e2d\u4e86\u3002<\/p>\n

\"image-20210828101536155\"<\/div><\/p>\n

Caffeine\u4ecb\u7ecd<\/h3>\n

Caffeine\u662f\u4e00\u4e2a\u57fa\u4e8eJava8\u5f00\u53d1\u7684\u63d0\u4f9b\u4e86\u8fd1\u4e4e\u6700\u4f73\u547d\u4e2d\u7387\u7684\u9ad8\u6027\u80fd\u7684\u7f13\u5b58\u5e93\u3002<\/p>\n

\u7f13\u5b58\u548cConcurrentMap<\/code>\u6709\u70b9\u76f8\u4f3c\uff0c\u4f46\u8fd8\u662f\u6709\u6240\u533a\u522b\u3002\u6700\u6839\u672c\u7684\u533a\u522b\u662fConcurrentMap<\/code>\u5c06\u4f1a\u6301\u6709\u6240\u6709\u52a0\u5165\u5230\u7f13\u5b58\u5f53\u4e2d\u7684\u5143\u7d20\uff0c\u76f4\u5230\u5b83\u4eec\u88ab\u4ece\u7f13\u5b58\u5f53\u4e2d\u624b\u52a8\u79fb\u9664\u3002\u4f46\u662f\uff0cCaffeine\u7684\u7f13\u5b58Cache<\/code> \u901a\u5e38\u4f1a\u88ab\u914d\u7f6e\u6210\u81ea\u52a8\u9a71\u9010\u7f13\u5b58\u4e2d\u5143\u7d20\uff0c\u4ee5\u9650\u5236\u5176\u5185\u5b58\u5360\u7528\u3002\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\uff0cLoadingCache<\/code>\u548cAsyncLoadingCache<\/code> \u56e0\u4e3a\u5176\u81ea\u52a8\u52a0\u8f7d\u7f13\u5b58\u7684\u80fd\u529b\u5c06\u4f1a\u53d8\u5f97\u975e\u5e38\u5b9e\u7528\u3002<\/p>\n

Caffeine\u5730\u5740\uff1a<\/p>\n

https:\/\/github.com\/ben-manes\/caffeine<\/a><\/p>\n

\u6587\u6863\u5730\u5740\uff1ahttps:\/\/github.com\/ben-manes\/caffeine\/wiki\/Home-zh-CN<\/a><\/p>\n

\u5f15\u5165\u4f9d\u8d56<\/h3>\n

\u4f7f\u7528maven\u5f15\u5165\uff1a<\/p>\n

<dependency>\n    <groupId>org.springframework.boot<\/groupId>\n    <artifactId>spring-boot-starter-cache<\/artifactId>\n<\/dependency>\n<dependency>\n    <groupId>com.github.ben-manes.caffeine<\/groupId>\n    <artifactId>caffeine<\/artifactId>\n<\/dependency><\/code><\/pre>\n
\u9ed8\u8ba4\u4f7f\u7528\u7684\u662f<\/p>\n
\/\/ \u5f15\u5165\u4f9d\u8cf4\u4e4b\u5f8c\u53ef\u4ee5\u81ea\u52a8\u914d\u7f6e\norg.springframework.boot.autoconfigure.cache.CacheAutoConfiguration\norg.springframework.boot.autoconfigure.cache.CaffeineCacheConfiguration<\/code><\/pre>\n
\u5f00\u542fcache\uff0c\u9700\u8981\u4f7f\u7528\u6ce8\u89e3@EnableCaching<\/code>\u6765\u5f00\u542fcache\uff1a<\/p>\n
@SpringBootApplication\n@EnableCaching\npublic class SimpleApplication {\n    public static void main(String[] args) {\n        SpringApplication.run(SimpleApplication.class, args);\n    }\n}<\/code><\/pre>\n
\u5728\u9700\u8981\u4f7f\u7528cache\u7684\u5730\u65b9\u6dfb\u52a0<\/p>\n
@Cacheable(cacheNames = "dobanBook", sync = true)\npublic BookVo loadBook(String bookUrl) {\n    \/\/ \u5b9e\u9645\u4e1a\u52a1\u903b\u8f91\n}<\/code><\/pre>\n
\u914d\u7f6eCaffeine<\/h3>\n
\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cCaffeine\u4e0d\u9700\u8981\u5728application.yml\u4e2d\u914d\u7f6e\uff0c\u4f46\u662f\u8981\u8be6\u7ec6\u63a7\u5236\u7f13\u5b58\u65f6\u95f4\uff0c\u5931\u6548\u7b56\u7565\u7b49\uff0c\u5c31\u9700\u8981\u914d\u7f6eCaffeine\u4e86\u3002<\/p>\n
Caffeine\u914d\u7f6e\u53c2\u6570\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5c5e\u6027<\/th>\n\u7c7b\u578b<\/th>\n\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n
initalCapacity<\/td>\ninteger<\/td>\n\u521d\u59cb\u7a7a\u95f4\u5927\u5c0f<\/td>\n<\/tr>\n
maximumSize<\/td>\nlong<\/td>\n\u7f13\u5b58\u6700\u5927\u6761\u6570<\/td>\n<\/tr>\n
maximumWeight<\/td>\nlong<\/td>\n\u7f13\u5b58\u7684\u6700\u5927\u6743\u91cd<\/td>\n<\/tr>\n
expireAfterAccess<\/td>\nduration<\/td>\n\u6700\u540e\u4e00\u6b21\u5199\u5165\u6216\u8bbf\u95ee\u540e\u7ecf\u8fc7\u56fa\u5b9a\u65f6\u95f4\u8fc7\u671f<\/td>\n<\/tr>\n
expireAfterWrite<\/td>\nduration<\/td>\n\u6700\u540e\u4e00\u6b21\u5199\u5165\u540e\u7ecf\u8fc7\u56fa\u5b9a\u65f6\u95f4\u8fc7\u671f<\/td>\n<\/tr>\n
refreshAfterWrite<\/td>\nduration<\/td>\n\u521b\u5efa\u7f13\u5b58\u6216\u8005\u6700\u8fd1\u4e00\u6b21\u66f4\u65b0\u7f13\u5b58\u540e\u7ecf\u8fc7\u56fa\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u5237\u65b0\u7f13\u5b58<\/td>\n<\/tr>\n
weakKeys<\/td>\nboolean<\/td>\n\u6253\u5f00key\u7684\u5f31\u5f15\u7528\uff08\u4e0d\u8981\u4f7f\u7528\uff0c\u9ed8\u8ba4\u6bd4\u8f83\u4f7f\u7528==\uff0c\u91cd\u590dkey\u53ef\u80fd\u591a\u6b21\u7f13\u5b58<\/strong>\uff09<\/td>\n<\/tr>\n
weakValues<\/td>\nboolean<\/td>\n\u6253\u5f00value\u7684\u5f31\u5f15\u7528<\/td>\n<\/tr>\n
softValues<\/td>\nboolean<\/td>\n\u6253\u5f00value\u7684\u8f6f\u5f15\u7528<\/td>\n<\/tr>\n
recordStats<\/td>\nboolean<\/td>\n\u5f00\u53d1\u7edf\u8ba1\u529f\u80fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u6301\u7eed\u65f6\u95f4\u53ef\u4ee5\u901a\u8fc7\u5728\u4e00\u4e2ainteger\u7c7b\u578b\u4e4b\u540e\u8ddf\u4e0a\u4e00\u4e2a"d"\uff0c"h"\uff0c"m"\uff0c\u6216\u8005"s"\u6765\u5206\u522b\u8868\u793a\u5929\uff0c\u5c0f\u65f6\uff0c\u5206\u949f\u6216\u8005\u79d2\u3002\u53e6\u5916\uff0cISO-8601\u6807\u51c6\u7684\u5b57\u7b26\u4e32\u4e5f\u88ab\u652f\u6301\u6765\u914d\u7f6e\u6301\u7eed\u65f6\u95f4\uff0c\u5e76\u901a\u8fc7Duration.parse<\/a>\u6765\u8fdb\u884c\u89e3\u6790\u3002\u51fa\u4e8e\u8868\u793a\u7f13\u5b58\u6301\u7eed\u65f6\u95f4\u7684\u76ee\u7684\uff0c\u8fd9\u91cc\u4e0d\u652f\u6301\u914d\u7f6e\u8d1f\u7684\u6301\u7eed\u65f6\u95f4\uff0c\u5e76\u5c06\u4f1a\u629b\u51fa\u5f02\u5e38\u3002\u4e24\u79cd\u6301\u7eed\u65f6\u95f4\u8868\u793a\u683c\u5f0f\u7684\u793a\u4f8b\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u666e\u901a<\/th>\nISO-8601<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
50s<\/td>\nPT50S<\/td>\n50\u79d2<\/td>\n<\/tr>\n
11m<\/td>\nPT11M<\/td>\n11\u5206\u949f<\/td>\n<\/tr>\n
6h<\/td>\nPT6H<\/td>\n6\u5c0f\u65f6<\/td>\n<\/tr>\n
3d<\/td>\nP3D<\/td>\n3\u5929<\/td>\n<\/tr>\n
<\/td>\nP3DT3H4M<\/td>\n3\u59293\u5c0f\u65f64\u5206\u949f<\/td>\n<\/tr>\n
<\/td>\n-PT7H3M<\/td>\n-7\u5c0f\u65f6\uff0c-3\u5206\u949f\uff08\u4e0d\u652f\u6301\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4e0d\u505a\u4ec0\u4e48\u914d\u7f6e\uff0c\u5728\u4f7f\u7528@Cacheable\u7684\u65f6\u5019\u4f1a\u52a8\u6001\u521b\u5efaCaffeineCache\uff0c\u5728CaffeineCacheManager\u91cc\u9762\u6709\u76f8\u5173\u4ee3\u7801\u7247\u6bb5\uff1a<\/p>\n
@Override\n@Nullable\npublic Cache getCache(String name) {\n    return this.cacheMap.computeIfAbsent(name, cacheName -> this.dynamic ? createCaffeineCache(cacheName) : null);\n}   \nprotected Cache createCaffeineCache(String name) {\n    return adaptCaffeineCache(name, createNativeCaffeineCache(name));\n}\nprotected com.github.benmanes.caffeine.cache.Cache<Object, Object> createNativeCaffeineCache(String name) {\n    return (this.cacheLoader != null ? this.cacheBuilder.build(this.cacheLoader) : this.cacheBuilder.build());\n}<\/code><\/pre>\n
yml\u4e2d\u914d\u7f6e<\/h4>\n
caffeine\u548cehcache\u7b49\u4e0d\u4e00\u6837\uff0c\u9ed8\u8ba4\u662f\u6ca1\u6709\u914d\u7f6e\u6587\u4ef6\u7684\uff0c\u4e0d\u80fd\u6307\u5b9a\u914d\u7f6e\u6587\u4ef6\u8def\u5f84\uff0c\u53ea\u53ef\u4ee5\u5728yml\u4e2d\u914d\u7f6e\uff0c\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
key1=value1,key2=value2,booleanValue<\/p>\n
spring:\n  cache:\n    caffeine:\n      spec: maximumSize=500,expireAfterWrite=24h,weakValues<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
SpringBoot\u5f15\u5165Caffeine\u7f13\u5b58\u914d\u7f6e \u4e00\u822c\u5728\u9879\u76ee\u4e2d\u4f7f\u7528Redis\u4f5c\u4e3a\u5206\u5e03\u5f0f\u7f13\u5b58\uff0c\u4f46\u662f\u8fd8\u6709\u6709\u5f88\u591a\u573a\u666f […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5,2],"tags":[50,49,48],"_links":{"self":[{"href":"https:\/\/fugary.com\/index.php?rest_route=\/wp\/v2\/posts\/218"}],"collection":[{"href":"https:\/\/fugary.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fugary.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fugary.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fugary.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=218"}],"version-history":[{"count":1,"href":"https:\/\/fugary.com\/index.php?rest_route=\/wp\/v2\/posts\/218\/revisions"}],"predecessor-version":[{"id":219,"href":"https:\/\/fugary.com\/index.php?rest_route=\/wp\/v2\/posts\/218\/revisions\/219"}],"wp:attachment":[{"href":"https:\/\/fugary.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fugary.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fugary.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}