{"id":862,"date":"2023-03-09T21:32:25","date_gmt":"2023-03-09T13:32:25","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=862"},"modified":"2023-04-29T16:45:24","modified_gmt":"2023-04-29T08:45:24","slug":"spring-boot-integrate-redis","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/09\/spring-boot-integrate-redis\/","title":{"rendered":"Spring Boot\u96c6\u6210Redis"},"content":{"rendered":"

Spring Boot \u5bf9\u5e38\u7528\u7684\u6570\u636e\u5e93\u652f\u6301\u5916\uff0c\u5bf9 Nosql \u6570\u636e\u5e93\u4e5f\u8fdb\u884c\u4e86\u5c01\u88c5\u81ea\u52a8\u5316\u3002<\/p>\n

Redis\u4ecb\u7ecd<\/h2>\n

<\/p>\n

Redis \u662f\u76ee\u524d\u4e1a\u754c\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u5185\u5b58\u6570\u636e\u5b58\u50a8\u3002\u76f8\u6bd4 Memcached\uff0cRedis \u652f\u6301\u66f4\u4e30\u5bcc\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f8b\u5982 hashes, lists, sets \u7b49\uff0c\u540c\u65f6\u652f\u6301\u6570\u636e\u6301\u4e45\u5316\u3002\u9664\u6b64\u4e4b\u5916\uff0cRedis \u8fd8\u63d0\u4f9b\u4e00\u4e9b\u7c7b\u6570\u636e\u5e93\u7684\u7279\u6027\uff0c\u6bd4\u5982\u4e8b\u52a1\uff0cHA\uff0c\u4e3b\u4ece\u5e93\u3002\u53ef\u4ee5\u8bf4 Redis \u517c\u5177\u4e86\u7f13\u5b58\u7cfb\u7edf\u548c\u6570\u636e\u5e93\u7684\u4e00\u4e9b\u7279\u6027\uff0c\u56e0\u6b64\u6709\u7740\u4e30\u5bcc\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n

\u4f7f\u7528Redis<\/h2>\n

\u5f15\u5165\u4f9d\u8d56\u5305<\/h3>\n
<dependency>\n    <groupId>org.springframework.boot<\/groupId>\n    <artifactId>spring-boot-starter-data-redis<\/artifactId>\n<\/dependency>\n<dependency>\n    <groupId>org.apache.commons<\/groupId>\n    <artifactId>commons-pool2<\/artifactId>\n<\/dependency><\/code><\/pre>\n
Spring Boot \u63d0\u4f9b\u4e86\u5bf9 Redis \u96c6\u6210\u7684\u7ec4\u4ef6\u5305\uff1aspring-boot-starter-data-redis<\/code>\uff0cspring-boot-starter-data-redis<\/code>\u4f9d\u8d56\u4e8espring-data-redis<\/code>\u548clettuce<\/code>\u3002Spring Boot 1.0 \u9ed8\u8ba4\u4f7f\u7528\u7684\u662fJedis\u5ba2\u6237\u7aef\uff0c2.0\u66ff\u6362\u6210 Lettuce\uff0c\u4f46\u5982\u679c\u4eceSpring Boot 1.5.X \u5207\u6362\u8fc7\u6765\uff0c\u51e0\u4e4e\u611f\u53d7\u4e0d\u5927\u5dee\u5f02\uff0c\u8fd9\u662f\u56e0\u4e3aspring-boot-starter-data-redis<\/code>\u4e3a\u6211\u4eec\u9694\u79bb\u4e86\u5176\u4e2d\u7684\u5dee\u5f02\u6027\u3002<\/p>\n
Lettuce<\/code>\u662f\u4e00\u4e2a\u53ef\u4f38\u7f29\u7ebf\u7a0b\u5b89\u5168\u7684Redis\u5ba2\u6237\u7aef\uff0c\u591a\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u5171\u4eab\u540c\u4e00\u4e2aRedisConnection<\/code>\uff0c\u5b83\u5229\u7528\u4f18\u79c0netty NIO\u6846\u67b6\u6765\u9ad8\u6548\u5730\u7ba1\u7406\u591a\u4e2a\u8fde\u63a5\u3002<\/p>\n
\u6dfb\u52a0\u914d\u7f6e\u6587\u4ef6<\/h3>\n
# Redis\u6570\u636e\u5e93\u7d22\u5f15\uff08\u9ed8\u8ba4\u4e3a0\uff09\nspring.redis.database=0  \n# Redis\u670d\u52a1\u5668\u5730\u5740\nspring.redis.host=localhost\n# Redis\u670d\u52a1\u5668\u8fde\u63a5\u7aef\u53e3\nspring.redis.port=6379  \n# Redis\u670d\u52a1\u5668\u8fde\u63a5\u5bc6\u7801\uff08\u9ed8\u8ba4\u4e3a\u7a7a\uff09\nspring.redis.password=\n# \u8fde\u63a5\u6c60\u6700\u5927\u8fde\u63a5\u6570\uff08\u4f7f\u7528\u8d1f\u503c\u8868\u793a\u6ca1\u6709\u9650\u5236\uff09 \u9ed8\u8ba4 8\nspring.redis.lettuce.pool.max-active=8\n# \u8fde\u63a5\u6c60\u6700\u5927\u963b\u585e\u7b49\u5f85\u65f6\u95f4\uff08\u4f7f\u7528\u8d1f\u503c\u8868\u793a\u6ca1\u6709\u9650\u5236\uff09 \u9ed8\u8ba4 -1\nspring.redis.lettuce.pool.max-wait=-1\n# \u8fde\u63a5\u6c60\u4e2d\u7684\u6700\u5927\u7a7a\u95f2\u8fde\u63a5 \u9ed8\u8ba4 8\nspring.redis.lettuce.pool.max-idle=8\n# \u8fde\u63a5\u6c60\u4e2d\u7684\u6700\u5c0f\u7a7a\u95f2\u8fde\u63a5 \u9ed8\u8ba4 0\nspring.redis.lettuce.pool.min-idle=0<\/code><\/pre>\n
spring:\n  redis:\n    # Redis\u6570\u636e\u5e93\u7d22\u5f15\uff08\u9ed8\u8ba4\u4e3a0\uff09\n    database: 0\n    # Redis\u670d\u52a1\u5668\u5730\u5740\n    host: localhost\n    # Redis\u670d\u52a1\u5668\u8fde\u63a5\u7aef\u53e3\n    port: 6379\n    # Redis\u670d\u52a1\u5668\u8fde\u63a5\u5bc6\u7801\uff08\u9ed8\u8ba4\u4e3a\u7a7a\uff09\n    password:\n    lettuce:\n      pool:\n        # \u8fde\u63a5\u6c60\u6700\u5927\u8fde\u63a5\u6570\uff08\u4f7f\u7528\u8d1f\u503c\u8868\u793a\u6ca1\u6709\u9650\u5236\uff09 \u9ed8\u8ba4 8\n        max-active: 8\n        # \u8fde\u63a5\u6c60\u6700\u5927\u963b\u585e\u7b49\u5f85\u65f6\u95f4\uff08\u4f7f\u7528\u8d1f\u503c\u8868\u793a\u6ca1\u6709\u9650\u5236\uff09 \u9ed8\u8ba4 -1\n        max-wait: -1\n        # \u8fde\u63a5\u6c60\u4e2d\u7684\u6700\u5927\u7a7a\u95f2\u8fde\u63a5 \u9ed8\u8ba4 8\n        max-idle: 8\n        # \u8fde\u63a5\u6c60\u4e2d\u7684\u6700\u5c0f\u7a7a\u95f2\u8fde\u63a5 \u9ed8\u8ba4 0\n        min-idle: 0<\/code><\/pre>\n
\u6dfb\u52a0cache\u914d\u7f6e\u7c7b<\/h3>\n
@Configuration\n@EnableCaching\npublic class RedisConfig extends CachingConfigurerSupport {\n    @Bean\n    public KeyGenerator keyGenerator() {\n        return new KeyGenerator() {\n            @Override\n            public Object generate(Object target, Method method, Object... params) {\n                StringBuilder sb = new StringBuilder();\n                sb.append(target.getClass().getName());\n                sb.append(method.getName());\n                for (Object obj : params) {\n                    sb.append(obj.toString());\n                }\n                return sb.toString();\n            }\n        };\n    }\n}<\/code><\/pre>\n
\u6ce8\u610f\u6211\u4eec\u4f7f\u7528\u4e86\u6ce8\u89e3\uff1a@EnableCaching<\/code>\u6765\u5f00\u542f\u7f13\u5b58\u3002<\/p>\n
\u6d4b\u8bd5<\/h3>\n
@Data\n@NoArgsConstructor\n@AllArgsConstructor\npublic class User implements Serializable {\n    private static final long serialVersionUID = -3258839839160856613L;\n    private Integer id;\n    private String username;\n    private String name;\n    private Integer age;\n    private Date birthday;\n}\n}<\/code><\/pre>\n
@RunWith(SpringRunner.class)\n@SpringBootTest\npublic class RedisTest {\n    @Autowired\n    private StringRedisTemplate stringRedisTemplate;\n    @Autowired\n    private RedisTemplate redisTemplate;\n\n    @Test\n    public void testStr() {\n        stringRedisTemplate.opsForValue().set("name", "Joe.Ye");\n        Assert.assertEquals("Joe.Ye", stringRedisTemplate.opsForValue().get("name"));\n    }\n\n    @Test\n    public void testObj() throws Exception {\n        User user = new User();\n        user.setUsername("joe");\n        user.setName("Joe.Ye");\n        user.setAge(28);\n        ValueOperations<String, User> operations = redisTemplate.opsForValue();\n        operations.set("user", user);\n        operations.set("user.test", user, 1, TimeUnit.SECONDS);\n        Thread.sleep(1000);\n        \/\/redisTemplate.delete("user.test");\n        Assert.assertEquals("Joe.Ye", operations.get("user").getName());\n        boolean exists = redisTemplate.hasKey("user.test");\n        if (exists) {\n            System.out.println("exists is true");\n        } else {\n            System.out.println("exists is false");\n        }\n    }\n}<\/code><\/pre>\n
\u81ea\u52a8\u6839\u636e\u65b9\u6cd5\u751f\u6210\u7f13\u5b58<\/h3>\n
\u4ee5\u4e0a\u90fd\u662f\u624b\u52a8\u4f7f\u7528\u7684\u65b9\u5f0f\uff0c\u5982\u4f55\u5728\u67e5\u627e\u6570\u636e\u5e93\u7684\u65f6\u5019\u81ea\u52a8\u4f7f\u7528\u7f13\u5b58\u5462<\/p>\n
@RestController\npublic class UserController {\n    @RequestMapping("\/getUser")\n    @Cacheable(value="user-key")\n    public User getUser() {\n        User user = new User("Joe.Ye", "http:\/\/www.appblog.cn");\n        return user;\n    }\n}<\/code><\/pre>\n
\u5176\u4e2d value \u7684\u503c\u5c31\u662f\u7f13\u5b58\u5230 Redis \u4e2d\u7684 key<\/p>\n
\u5171\u4eabSession<\/h2>\n
\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0cSession\u5171\u4eab\u6709\u5f88\u591a\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5176\u4e2d\u6258\u7ba1\u5230\u7f13\u5b58\u4e2d\u5e94\u8be5\u662f\u6700\u5e38\u7528\u7684\u65b9\u6848\u4e4b\u4e00\uff0c<\/p>\n
Spring Session\u5b98\u65b9\u8bf4\u660e<\/h3>\n
Spring Session provides an API and implementations for managing a user\u2019s session information.<\/code><\/pre>\n
Spring Session<\/code>\u63d0\u4f9b\u4e86\u4e00\u5957\u521b\u5efa\u548c\u7ba1\u7406Servlet HttpSession<\/code>\u7684\u65b9\u6848\u3002Spring Session<\/code>\u63d0\u4f9b\u4e86\u96c6\u7fa4Session\uff08Clustered Sessions\uff09\u529f\u80fd\uff0c\u9ed8\u8ba4\u91c7\u7528\u5916\u7f6e\u7684 Redis \u6765\u5b58\u50a8 Session \u6570\u636e\uff0c\u4ee5\u6b64\u6765\u89e3\u51b3 Session \u5171\u4eab\u7684\u95ee\u9898\u3002<\/p>\n
\u4f7f\u7528Session<\/h3>\n
\uff081\uff09\u5f15\u5165\u4f9d\u8d56<\/p>\n
<dependency>\n    <groupId>org.springframework.session<\/groupId>\n    <artifactId>spring-session-data-redis<\/artifactId>\n<\/dependency><\/code><\/pre>\n
\uff082\uff09Session \u914d\u7f6e\uff1a<\/p>\n
@Configuration\n@EnableRedisHttpSession(maxInactiveIntervalInSeconds = 86400*30)\npublic class SessionConfig {\n}<\/code><\/pre>\n
\n
maxInactiveIntervalInSeconds: \u8bbe\u7f6e Session \u5931\u6548\u65f6\u95f4\uff0c\u4f7f\u7528Redis Session<\/code>\u4e4b\u540e\uff0c\u539f Spring Boot \u7684server.session.timeout<\/code>\u5c5e\u6027\u4e0d\u518d\u751f\u6548\u3002<\/p>\n<\/blockquote>\n
\uff083\uff09\u6d4b\u8bd5<\/p>\n
\u6dfb\u52a0\u6d4b\u8bd5\u65b9\u6cd5\u83b7\u53d6 sessionid<\/p>\n
@ResponseBody\n@RequestMapping("\/uid")\npublic String uid(HttpSession session) {\n    UUID uid = (UUID) session.getAttribute("uid");\n    if (uid == null) {\n        uid = UUID.randomUUID();\n    }\n    session.setAttribute("uid", uid);\n    return session.getId();\n}<\/code><\/pre>\n
\u4f7f\u7528 Redis Client \u767b\u5f55 Redis \u8f93\u5165 keys ‘sessions<\/em>‘<\/p>\n
t<spring:session:sessions:db031986-8ecc-48d6-b471-b137a3ed6bc4\nt(spring:session:expirations:1472976480000<\/code><\/pre>\n
\u5176\u4e2d 1472976480000 \u4e3a\u5931\u6548\u65f6\u95f4\uff0c\u610f\u601d\u662f\u8fd9\u4e2a\u65f6\u95f4\u540e Session \u5931\u6548\uff0cdb031986-8ecc-48d6-b471-b137a3ed6bc4 \u4e3a sessionId\u3002\u767b\u5f55 http:\/\/localhost:8080\/uid<\/code> \u53d1\u73b0\u4f1a\u4e00\u81f4\uff0c\u5c31\u8bf4\u660e Session \u5df2\u7ecf\u5728 Redis \u91cc\u9762\u8fdb\u884c\u6709\u6548\u7684\u7ba1\u7406\u3002<\/p>\n
\u5982\u4f55\u5728\u4e24\u53f0\u6216\u8005\u591a\u53f0\u4e2d\u5171\u4eabSession<\/h3>\n
\u6309\u7167\u4e0a\u9762\u7684\u6b65\u9aa4\u5728\u53e6\u4e00\u4e2a\u9879\u76ee\u4e2d\u518d\u6b21\u914d\u7f6e\u4e00\u6b21\uff0c\u542f\u52a8\u540e\u81ea\u52a8\u5c31\u8fdb\u884c\u4e86Session\u5171\u4eab\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Spring Boot \u5bf9\u5e38\u7528\u7684\u6570\u636e\u5e93\u652f\u6301\u5916\uff0c\u5bf9 Nosql \u6570\u636e\u5e93\u4e5f\u8fdb\u884c\u4e86\u5c01\u88c5\u81ea\u52a8\u5316\u3002 Redis\u4ecb\u7ecd Re […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[153],"class_list":["post-862","post","type-post","status-publish","format-standard","hentry","category-spring-boot","tag-redis"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=862"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/862\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}