\u5c06\u4e00\u6761\u6216\u591a\u6761\u6570\u636e\u4ece\u7f13\u5b58\u4e2d\u5220\u9664<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2.1\u3001@EnableCaching<\/h4>\n\u8be5\u6ce8\u89e3\u7684\u4e3b\u8981\u529f\u80fd\u5c31\u662f\u5f00\u542f\u7f13\u5b58\u6ce8\u89e3\u7684\u529f\u80fd\uff0c\u8ba9 Spring Cache \u4e2d\u7684\u5176\u4ed6\u6ce8\u89e3\u751f\u6548\u3002\u4f7f\u7528\u65b9\u5f0f\u4e5f\u5341\u5206\u7b80\u5355\uff0c\u76f4\u63a5\u5c06\u5176\u52a0\u5728\u9879\u76ee\u7684\u542f\u52a8\u7c7b\u4e0a\u65b9\u5373\u53ef\u3002<\/p>\n @Slf4j\n@SpringBootApplication\n@EnableCaching\npublic class CacheDemoApplication {\n public static void main(String[] args) {\n SpringApplication.run(CacheDemoApplication.class, args);\n log.info(\"\u9879\u76ee\u542f\u52a8\u6210\u529f...\");\n }\n}<\/pre>\n2.2\u3001@Cacheable<\/h4>\n@Cacheable<\/code>\u6ce8\u89e3\u4e3b\u8981\u662f\u5728\u65b9\u6cd5\u6267\u884c\u524d \u5148\u67e5\u770b\u7f13\u5b58\u4e2d\u662f\u5426\u6709\u6570\u636e\u3002\u5982\u679c\u6709\u6570\u636e\uff0c\u5219\u76f4\u63a5\u8fd4\u56de\u7f13\u5b58\u6570\u636e\uff1b\u82e5\u6ca1\u6709\u6570\u636e\uff0c\u8c03\u7528\u65b9\u6cd5\u5e76\u5c06\u65b9\u6cd5\u8fd4\u56de\u503c\u653e\u5230\u7f13\u5b58\u4e2d\u3002<\/p>\n\u6ce8\u89e3\u4e2d\u7684\u53c2\u6570\u4f20\u9012\u4e3b\u8981\u4f7f\u7528\u7684\u662f**SpEL\uff08Spring Expression Language\uff09**\u5bf9\u6570\u636e\u8fdb\u884c\u83b7\u53d6\u4f20\u9012\uff0c\u8fd9\u6709\u70b9\u7c7b\u4f3c\u4e8eJSP\u4e2d\u7684EL\u8868\u8fbe\u5f0f\uff0c\u5e38\u7528\u65b9\u5f0f\u5982\u4e0b\u51e0\u79cd\uff1a<\/p>\n \n- \n
\u201c#p0\u201d\uff1a\u83b7\u53d6\u53c2\u6570\u5217\u8868\u4e2d\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u3002\u5176\u4e2d\u7684\u201c#p\u201d\u4e3a\u56fa\u5b9a\u5199\u6cd5\uff0c0\u4e3a\u4e0b\u6807\uff0c\u4ee3\u8868\u7b2c\u4e00\u4e2a\uff1b<\/p>\n<\/li>\n - \n
\u201c#root.args[0]\u201d\uff1a\u83b7\u53d6\u65b9\u6cd5\u4e2d\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u3002\u5176\u4e2d0\u4e3a\u4e0b\u6807\uff0c\u4ee3\u8868\u7b2c\u4e00\u4e2a\u3002<\/p>\n<\/li>\n - \n
\u201c#user.id\u201d\uff1a\u83b7\u53d6\u53c2\u6570 user \u7684 id \u5c5e\u6027\u3002\u6ce8\u610f\u7684\u662f\u8fd9\u91cc\u7684 user \u5fc5\u987b\u8981\u548c\u53c2\u6570\u5217\u8868\u4e2d\u7684\u53c2\u6570\u540d\u4e00\u81f4<\/p>\n<\/li>\n - \n
\u201c#result.id\u201d\uff1a\u83b7\u53d6\u8fd4\u56de\u503c\u4e2d\u7684 id \u5c5e\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n \u6765\u81eaSpring Cache\u6e90\u7801\uff1aSpring Expression Language (SpEL) expression used for making the method<\/p>\n \u5728@Cacheable<\/code>\u6ce8\u89e3\u4e2d\u6709\u51e0\u79cd\u5e38\u7528\u7684\u5c5e\u6027\u53ef\u8fdb\u884c\u9700\u6c42\u6027\u8bbe\u7f6e\uff1a<\/p>\n\n- \n
value\uff1a\u7f13\u5b58\u7684\u540d\u79f0\uff0c\u6bcf\u4e2a\u7f13\u5b58\u540d\u79f0\u4e0b\u9762\u53ef\u4ee5\u6709\u591a\u4e2a key<\/p>\n<\/li>\n - \n
key\uff1a\u7f13\u5b58\u7684key\u3002<\/p>\n<\/li>\n - \n
condition\uff1a\u6761\u4ef6\u5224\u65ad\uff0c\u6ee1\u8db3\u6761\u4ef6\u65f6\u5bf9\u6570\u636e\u8fdb\u884c\u7f13\u5b58\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\u8be5\u53c2\u6570\u5728Redis\u4e2d\u65e0\u6548<\/p>\n<\/li>\n - \n
unless\uff1a\u6761\u4ef6\u5224\u65ad\uff0c\u6ee1\u8db3\u6761\u4ef6\u65f6\u5219\u4e0d\u5bf9\u6570\u636e\u8fdb\u884c\u7f13\u5b58\uff0cRedis\u4e2d\u53ef\u4f7f\u7528\u8be5\u53c2\u6570\u66ff\u4ee3condition<\/p>\n<\/li>\n<\/ul>\n \/**\n * @description \u901a\u8fc7id\u83b7\u53d6\u7528\u6237\u4fe1\u606f\n * @author xBaozi\n * @date 14:23 2022\/7\/3\n **\/\n@Cacheable(value = \"userCache\", key = \"#id\", unless = \"#result == null\")\n@GetMapping(\"\/{id}\")\npublic User getById(@PathVariable Long id) {\n User user = userService.getById(id);\n return user;\n}<\/pre>\n2.3\u3001@CachePut<\/h4>\n@CachPut<\/code>\u6ce8\u89e3\u4e3b\u8981\u662f\u5c06\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u653e\u5230\u7f13\u5b58\u4e2d\u3002\u8fd9\u91cc\u540c\u6837\u662f\u4f7f\u7528SpEL\u83b7\u53d6\u6570\u636e\uff0c\u5e38\u7528\u7684\u5c5e\u6027\u5982\u4e0b\uff1a<\/p>\n\n- \n
value\uff1a\u7f13\u5b58\u7684\u540d\u79f0\uff0c\u6bcf\u4e2a\u7f13\u5b58\u540d\u79f0\u4e0b\u9762\u53ef\u4ee5\u6709\u591a\u4e2a key<\/p>\n<\/li>\n - \n
key\uff1a\u7f13\u5b58\u7684key\u3002<\/p>\n<\/li>\n - \n
condition\uff1a\u6761\u4ef6\u5224\u65ad\uff0c\u6ee1\u8db3\u6761\u4ef6\u65f6\u5bf9\u6570\u636e\u8fdb\u884c\u7f13\u5b58\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\u8be5\u53c2\u6570\u5728Redis\u4e2d\u65e0\u6548<\/p>\n<\/li>\n - \n
unless\uff1a\u6761\u4ef6\u5224\u65ad\uff0c\u6ee1\u8db3\u6761\u4ef6\u65f6\u5219\u4e0d\u5bf9\u6570\u636e\u8fdb\u884c\u7f13\u5b58\uff0cRedis\u4e2d\u53ef\u4f7f\u7528\u8be5\u53c2\u6570\u66ff\u4ee3condition<\/p>\n<\/li>\n<\/ul>\n \/**\n * @description \u65b0\u589e\u7528\u6237\u4fe1\u606f\u5e76\u8fd4\u56de\u4fdd\u5b58\u7684\u4fe1\u606f\n * @author xBaozi\n * @date 14:38 2022\/7\/3\n **\/\n@CachePut(value = \"userCache\", key = \"#user.id\")\n@PostMapping\npublic User save(User user) {\n userService.save(user);\n return user;\n}<\/pre>\n2.4\u3001@CacheEvict<\/h4>\n@CacheeEvict<\/code>\u4e3b\u8981\u662f\u5c06\u4e00\u6761\u6216\u591a\u6761\u6570\u636e\u4ece\u7f13\u5b58\u4e2d\u5220\u9664\uff0c\u540c\u6837\u4f7f\u7528SpEL\u83b7\u53d6\u6570\u636e\uff0c\u5e38\u7528\u7684\u5c5e\u6027\u5982\u4e0b\uff1a<\/p>\n\n- \n
value\uff1a\u7f13\u5b58\u7684\u540d\u79f0\uff0c\u6bcf\u4e2a\u7f13\u5b58\u540d\u79f0\u4e0b\u9762\u53ef\u4ee5\u6709\u591a\u4e2a key<\/p>\n<\/li>\n - \n
key\uff1a\u7f13\u5b58\u7684key\u3002<\/p>\n<\/li>\n - \n
condition\uff1a\u6761\u4ef6\u5224\u65ad\uff0c\u6ee1\u8db3\u6761\u4ef6\u65f6\u5bf9\u6570\u636e\u8fdb\u884c\u7f13\u5b58\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\u8be5\u53c2\u6570\u5728Redis\u4e2d\u65e0\u6548<\/p>\n<\/li>\n - \n
unless\uff1a\u6761\u4ef6\u5224\u65ad\uff0c\u6ee1\u8db3\u6761\u4ef6\u65f6\u5219\u4e0d\u5bf9\u6570\u636e\u8fdb\u884c\u7f13\u5b58\uff0cRedis\u4e2d\u53ef\u4f7f\u7528\u8be5\u53c2\u6570\u66ff\u4ee3condition<\/p>\n<\/li>\n<\/ul>\n \/**\n * @description \u66f4\u65b0\u7528\u6237\u4fe1\u606f\n * @author xBaozi\n * @date 14:41 2022\/7\/3\n **\/\n@CacheEvict(value = \"userCache\", key = \"#result.id\")\n@PutMapping\npublic User update(User user) {\n userService.updateById(user);\n return user;\n}<\/pre>\n3\u3001\u4f7f\u7528Redis\u5f53\u4f5c\u7f13\u5b58\u4ea7\u54c1<\/h3>\n\u56e0\u4e3a Spring \u9ed8\u8ba4\u7684\u7f13\u5b58\u6280\u672f\u65e0\u6cd5\u6301\u4e45\u5316\u4fdd\u5b58\u7f13\u5b58\u6570\u636e\uff0c\u5373\u670d\u52a1\u6302\u4e86\u7f13\u5b58\u4e5f\u6302\u4e86\uff0c\u56e0\u6b64\u5c31\u9700\u8981\u4f7f\u7528Redis\u8fdb\u884c\u64cd\u4f5c\uff08\u5176\u5b9e\u4e5f\u662f\u56e0\u4e3a\u5b66\u4e60\u4e86Redis\uff09<\/p>\n \u524d\u9762\u7684SpringBoot\u6574\u5408Redis\u7f13\u5b58\u9a8c\u8bc1\u7801\u91cc\u9762\u6709\u8bb0\u5f55\u7740\u4e00\u4e9bRedis\u7684\u57fa\u672c\u64cd\u4f5c\u3002<\/p>\n 3.1\u3001\u5750\u6807\u5bfc\u5165<\/h4>\n\u5bfc\u5165 maven \u5750\u6807\uff1aspring-boot-starter-data-redis\u3001spring-boot-starter-cache<\/p>\n <!--Spring Data Redis-->\n<dependency>\n <groupId>org.springframework.boot<\/groupId>\n <artifactId>spring-boot-starter-data-redis<\/artifactId>\n<\/dependency>\n<!--Spring Cache-->\n<dependency>\n <groupId>org.springframework.boot<\/groupId>\n <artifactId>spring-boot-starter-cache<\/artifactId>\n<\/dependency><\/pre>\n3.2\u3001yml\u914d\u7f6e<\/h4>\n\nspring:
redis:
host: localhost
port: 6379
password: 123456
database: 0
cache:
redis:
time-to-live: 1800000 # \u8bbe\u7f6e\u7f13\u5b58\u6709\u6548\u671f<\/p>\n<\/blockquote>\n 3.3\u3001\u5f00\u542f\u6ce8\u89e3\u529f\u80fd<\/h4>\n\u5728\u542f\u52a8\u7c7b com\/itheima\/CacheDemoApplication.java<\/code> \u4e0a\u52a0\u5165 @EnableCaching \u6ce8\u89e3\uff0c\u5f00\u542f\u7f13\u5b58\u6ce8\u89e3\u529f\u80fd<\/p>\n@Slf4j\n@SpringBootApplication\n@ServletComponentScan\n@EnableCaching\npublic class ReggieApplication {\n public static void main(String[] args) {\n SpringApplication.run(ReggieApplication.class, args);\n log.info(\"springBoot\u9879\u76ee\u542f\u52a8\u6210\u529f\u2026\u2026\");\n }\n}<\/pre>\n3.4\u3001\u4f7f\u7528@Cacheable<\/h4>\n\u8fd9\u91cc\u63d0\u4e00\u4e0b\u6709\u4e2a\u5751\u5c31\u662f\u4f7f\u7528\u7684\u7f13\u5b58\u65f6\uff0c\u8fd4\u56de\u503c\u5fc5\u987b\u5b9e\u73b0 Serializable \u5e8f\u5217\u5316\u63a5\u53e3\uff0c\u5426\u5219\u5c06\u4f1a\u62a5\u9519\u3002<\/p>\n \u8fd9\u662f\u56e0\u4e3a\u5728 NoSql \u6570\u636e\u5e93\u4e2d\uff0c\u5e76\u6ca1\u6709\u4e0e\u6211\u4eec Java \u57fa\u672c\u7c7b\u578b\u5bf9\u5e94\u7684\u6570\u636e\u7ed3\u6784\uff0c\u6240\u4ee5\u5728\u5f80 NoSql \u6570\u636e\u5e93\u4e2d\u5b58\u50a8\u65f6\uff0c\u6211\u4eec\u5c31\u5fc5\u987b\u5c06\u5bf9\u8c61\u8fdb\u884c\u5e8f\u5217\u5316\uff0c\u540c\u65f6\u5728\u7f51\u7edc\u4f20\u8f93\u4e2d\u6211\u4eec\u8981\u6ce8\u610f\u5230\u4e24\u4e2a\u5e94\u7528\u4e2d javabean \u7684 serialVersionUID \u8981\u4fdd\u6301\u4e00\u81f4\uff0c\u4e0d\u7136\u5c31\u4e0d\u80fd\u6b63\u5e38\u7684\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\u3002<\/p>\n \/**\n * @description \u65b0\u589e\u5957\u9910\u4fe1\u606f\n * @author xBaozi\n * @date 17:55 2022\/5\/13\n * @param setmealDto \u9700\u8981\u65b0\u589e\u5957\u9910\u7684\u6570\u636e\n **\/\n@CacheEvict(value = \"setmealCache\",allEntries = true)\n@PostMapping\npublic Result<String> save(@RequestBody SetmealDto setmealDto) {\n log.info(\"\u5957\u9910\u4fe1\u606f\u4e3a{}\", setmealDto);\n setmealService.saveWithDish(setmealDto);\n return Result.success(\"\u5957\u9910\" + setmealDto.getName() + \"\u65b0\u589e\u6210\u529f\");\n}<\/pre>\n3.5\u3001\u4f7f\u7528@CacheEvict<\/h4>\n\u8fd9\u91cc\u7528\u5230\u4e86\u4e00\u4e2a\u65b0\u5c5e\u6027allEntries\uff0c\u5176\u662fboolean\u7c7b\u578b\uff0c\u8868\u793a\u662f\u5426\u9700\u8981\u6e05\u9664\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u9ed8\u8ba4\u4e3afalse\uff0c\u8868\u793a\u4e0d\u9700\u8981\u3002\u5f53\u6307\u5b9a\u4e86 allEntries \u4e3a true \u65f6\uff0cSpring Cache\u5c06\u5ffd\u7565\u6307\u5b9a\u7684 key\u3002\u6709\u7684\u65f6\u5019\u6211\u4eec\u9700\u8981 Cache \u4e00\u4e0b\u6e05\u9664\u6240\u6709\u7684\u5143\u7d20\uff0c\u8fd9\u6bd4\u4e00\u4e2a\u4e00\u4e2a\u6e05\u9664\u5143\u7d20\u66f4\u6709\u6548\u7387\u3002<\/p>\n \/**\n * @description \u66f4\u65b0\u5957\u9910\u4fe1\u606f\u5e76\u66f4\u65b0\u5176\u5173\u8054\u7684\u83dc\u54c1\n * @author xBaozi\n * @date 11:28 2022\/5\/14\n * @param setmealDto \u9700\u8981\u66f4\u65b0\u7684\u5957\u9910\u4fe1\u606f\n **\/\n@CacheEvict(value = \"setmealCache\",allEntries = true)\n@PutMapping\npublic Result<String> updateWithDish(@RequestBody SetmealDto setmealDto) {\n log.info(setmealDto.toString());\n setmealService.updateWithDish(setmealDto);\n return Result.success(\"\u5957\u9910\u4fee\u6539\u6210\u529f\");\n}<\/pre>\n4\u3001\u6d4b\u8bd5<\/h3>\n\u4ee3\u7801\u7f16\u5199\u5b8c\u6210\u4e4b\u540e,\u91cd\u542f\u5de5\u7a0b,\u7136\u540e\u8bbf\u95ee\u540e\u53f0\u7ba1\u7406\u7cfb\u7edf,\u5bf9\u5957\u9910\u6570\u636e\u8fdb\u884c\u65b0\u589e\u4ee5\u53ca\u5220\u9664\uff0c\u800c\u540e\u89c2\u5bdfRedis\u4e2d\u7684\u6570\u636e\u53d1\u73b0\u5199\u7684\u4ee3\u7801\u662f\u80fd\u6b63\u5e38\u8dd1\u5230\uff01\u6210\u529f\uff01<\/p>\n ![](\"https:\/\/www.17golang.com\/uploads\/20240410\/171272073666160b60d6f61.png\") <\/p>\n","protected":false},"excerpt":{"rendered":"
SpringBoot\u600e\u4e48\u6574\u5408Sp...<\/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-202335","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202335","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=202335"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202335\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
|