{"id":201138,"date":"2025-05-10T08:33:38","date_gmt":"2025-05-10T00:33:38","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201138\/"},"modified":"2025-05-10T08:33:38","modified_gmt":"2025-05-10T00:33:38","slug":"%e4%bd%bf%e7%94%a8redis%e7%94%9f%e6%88%90%e5%94%af%e4%b8%80%e7%bc%96%e5%8f%b7%e5%8f%8a%e5%8e%9f%e7%90%86%e7%a4%ba%e4%be%8b%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201138\/","title":{"rendered":"\u4f7f\u7528redis\u751f\u6210\u552f\u4e00\u7f16\u53f7\u53ca\u539f\u7406\u793a\u4f8b\u8be6\u89e3"},"content":{"rendered":"

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

\u4f7f\u7528redis\u751f\u6210\u552f\u4e00\u7f16\u53f7\u53ca\u539f\u7406\u793a\u4f8b\u8be6\u89e3<\/h1>\n

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

\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u5c31\u6574\u7406\u5206\u4eab\u300a\u4f7f\u7528redis\u751f\u6210\u552f\u4e00\u7f16\u53f7\u53ca\u539f\u7406\u793a\u4f8b\u8be6\u89e3\u300b\uff0c\u804a\u804a\u539f\u7406\u3001redis\u552f\u4e00\u7f16\u53f7\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n

\u5728\u7cfb\u7edf\u5f00\u53d1\u4e2d\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u552f\u4e00\u6027\u662f\u81f3\u5173\u91cd\u8981\u7684\u4e00\u4ef6\u4e8b\uff0c\u76ee\u524d\u5f00\u53d1\u4e2d\u5e38\u7528\u7684\u65b9\u5f0f\u6709\u4f7f\u7528\u6570\u636e\u5e93\u7684\u81ea\u589e\u5e8f\u5217\u3001UUID\u751f\u6210\u552f\u4e00\u7f16\u53f7\u3001\u65f6\u95f4\u6233\u6216\u8005\u65f6\u95f4\u6233+\u968f\u673a\u6570\u7b49\u3002<\/p>\n

\u5728\u67d0\u4e9b\u7279\u5b9a\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u53ef\u80fd\u4f1a\u8981\u6c42\u6211\u4eec\u4f7f\u7528\u7279\u5b9a\u683c\u5f0f\u7684\u552f\u4e00\u7f16\u53f7\uff0c\u6bd4\u5982\u6211\u6709\u4e00\u5f20\u8ba2\u5355\u8868(t_order)\uff0c\u6211\u9700\u8981\u751f\u6210\u201cyewu(ORDER)+\u65e5\u671f(yyyyMMdd)+\u5e8f\u5217\u53f7(00000000)\u201d\u683c\u5f0f\u7684\u8ba2\u5355\u7f16\u53f7\uff0c\u6bd4\u5982\u4eca\u5929\u7684\u65e5\u671f\u662f20200716\uff0c\u90a3\u6211\u4eca\u5929\u7b2c\u4e00\u4e2a\u8ba2\u5355\u53f7\u5c31\u662fORDER2020071600000001\u3001\u7b2c\u4e8c\u4e2a\u8ba2\u5355\u53f7\u5c31\u662fORDER2020071600000002\uff0c\u660e\u5929\u7684\u65e5\u671f\u662f20200717\uff0c\u90a3\u4e48\u660e\u5929\u7684\u7b2c\u4e00\u4e2a\u8ba2\u5355\u53f7\u5c31\u662fORDER2020071700000001\u3001\u7b2c\u4e8c\u4e2a\u8ba2\u5355\u53f7\u5c31\u662fORDER2020071700000002\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/p>\n

\u4eca\u5929\u4ecb\u7ecd\u4e0b\u5982\u4f55\u4f7f\u7528redis\u751f\u6210\u552f\u4e00\u7684\u5e8f\u5217\u53f7\uff0c\u5176\u5b9e\u4e3b\u8981\u601d\u60f3\u8fd8\u662f\u5229\u7528redis\u5355\u7ebf\u7a0b\u7684\u7279\u6027\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u4f7f\u8bfb\u5199\u540c\u4e00\u4e2akey\u65f6\u4e0d\u4f1a\u51fa\u73b0\u4e0d\u540c\u7684\u6570\u636e\u3002\u4ee5SpringBoot\u9879\u76ee\u4e3a\u4f8b\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u4f9d\u8d56\u3002<\/p>\n

\n\n   \n    \n     org.apache.commons\n    \n    \n     commons-lang3\n    \n    \n     3.1\n    \n   \n   \n    \n     org.springframework.boot\n    \n    \n     spring-boot-starter-data-redis\n    \n    \n     ${spring.boot.version}\n    \n   <\/pre>\n
application.properties\u4e2d\u914d\u7f6eredis\uff0c\u6211\u672c\u5730redis\u6ca1\u6709\u8bbe\u7f6e\u5bc6\u7801\uff0c\u6240\u4ee5\u6ce8\u91ca\u4e86\u5bc6\u7801\u8fd9\u4e00\u884c<\/p>\n
\nserver.port=9091\nserver.servlet.context-path=\/\n\nspring.redis.host=127.0.0.1\nspring.redis.port=6379\n#spring.redis.password=1234\nspring.redis.database=0<\/pre>\n
\u521b\u5efaSequenceService\u7c7b\u7528\u4e8e\u751f\u6210\u7279\u5b9a\u4e1a\u52a1\u7f16\u53f7<\/p>\n
\npackage com.xiaochun.service;\n\nimport org.apache.commons.lang3.StringUtils;\nimport org.slf4j.Logger;\nimport org.slf4j.LoggerFactory;\nimport org.springframework.data.redis.core.RedisTemplate;\nimport org.springframework.data.redis.support.atomic.RedisAtomicLong;\nimport org.springframework.stereotype.Service;\n\nimport javax.annotation.Resource;\nimport java.text.SimpleDateFormat;\nimport java.util.Calendar;\nimport java.util.Date;\n\n@Service\npublic class SequenceService {\n\n    private static Logger logger = LoggerFactory.getLogger(SequenceService.class);\n\n    @Resource\n    private RedisTemplate redisTemplate;\n\n    \/\/\u7528\u4f5c\u5b58\u653eredis\u4e2d\u7684key\n    private static String ORDER_KEY = \"order_key\";\n    \n    \/\/\u751f\u6210\u7279\u5b9a\u7684\u4e1a\u52a1\u7f16\u53f7\uff0cprefix\u4e3a\u7279\u5b9a\u7684\u4e1a\u52a1\u4ee3\u7801\n    public String getOrderNo(String prefix){\n         return getSeqNo(ORDER_KEY, prefix);\n    }\n    \n    \/\/SequenceService\u7c7b\u4e2d\u516c\u7528\u90e8\u5206\uff0c\u4f20\u5165\u5236\u5b9a\u7684key\u548cprefix\n    private String getSeqNo(String key, String prefix)\n    {\n        Calendar calendar = Calendar.getInstance();\n        calendar.set(Calendar.HOUR_OF_DAY, 23);\n        calendar.set(Calendar.MINUTE, 59);\n        calendar.set(Calendar.SECOND, 59);\n        calendar.set(Calendar.MILLISECOND, 999);\n        \/\/\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u8fd9\u91cc\u8bbe\u7f6e\u4e3a\u5f53\u5929\u768423:59:59\n        Date expireDate = calendar.getTime();\n        \/\/\u8fd4\u56de\u5f53\u524dredis\u4e2d\u7684key\u7684\u6700\u5927\u503c\n        Long seq = generate(redisTemplate, key, expireDate);\n        \/\/\u83b7\u53d6\u5f53\u5929\u7684\u65e5\u671f\uff0c\u683c\u5f0f\u4e3ayyyyMMdd\n        String date = new SimpleDateFormat(\"yyyyMMdd\").format(expireDate);\n        \/\/\u751f\u6210\u516b\u4e3a\u7684\u5e8f\u5217\u53f7\uff0c\u5982\u679cseq\u4e0d\u591f\u516b\u4f4d\uff0cseq\u524d\u9762\u88650\uff0c\n        \/\/\u5982\u679cseq\u4f4d\u6570\u8d85\u8fc7\u4e86\u516b\u4f4d\uff0c\u90a3\u4e48\u65e0\u9700\u88650\u76f4\u63a5\u8fd4\u56de\u5f53\u524d\u7684seq\n        String sequence = StringUtils.leftPad(seq.toString(), 8, \"0\");\n        if (prefix == null)\n        {\n            prefix = \"\";\n        }\n        \/\/\u62fc\u63a5\u4e1a\u52a1\u7f16\u53f7\n        String seqNo = prefix + date + sequence;\n        logger.info(\"KEY:{}, \u5e8f\u5217\u53f7\u751f\u6210:{}, \u8fc7\u671f\u65f6\u95f4:{}\", key, seqNo, String.format(\"%tF %tT \", expireDate, expireDate));\n        return seqNo;\n    }\n\n    \/**\n     * @param key\n     * @param expireTime \u8fc7\u671f\u65f6\u95f4<\/i>\n     * @return\n     *\/\n    public static long generate(RedisTemplate redisTemplate,String key,Date expireTime) {\n        \/\/RedisAtomicLong\u4e3a\u539f\u5b50\u7c7b\uff0c\u6839\u636e\u4f20\u5165\u7684key\u548credis\u94fe\u63a5\u5de5\u5382\u521b\u5efa\u539f\u5b50\u7c7b\n        RedisAtomicLong counter = new RedisAtomicLong(key,redisTemplate.getConnectionFactory());\n        \/\/\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\n        counter.expireAt(expireTime);\n        \/\/\u8fd4\u56deredis\u4e2dkey\u7684\u503c\uff0c\u5185\u90e8\u5b9e\u73b0\u4e0b\u9762\u8be6\u7ec6\u8bf4\u660e\n        return counter.incrementAndGet();\n    }\n\n}<\/pre>\n
\u63a5\u4e0b\u6765\uff0c\u542f\u52a8\u9879\u76ee\uff0c\u4f7f\u7528\u63a5\u53e3\u7684\u5f62\u5f0f\u8bbf\u95ee\uff0c\u6216\u8005\u5199Test\u65b9\u6cd5\u6267\u884c\uff0c\u5c31\u53ef\u4ee5\u5f97\u5230\u8bf8\u5982ORDER2020071600000001\u3001ORDER2020071600000002\u7684\u7f16\u53f7\uff0c\u800c\u4e14\u5728\u9ad8\u5e76\u53d1\u73af\u5883\u4e2d\u4e5f\u4e0d\u4f1a\u51fa\u73b0\u6570\u636e\u91cd\u590d\u7684\u60c5\u51b5\u3002\u5b9e\u73b0\u539f\u7406\uff1a\u4e0a\u9762\u751f\u6210\u7279\u5b9a\u4e1a\u52a1\u7f16\u53f7\u4e3b\u8981\u5206\u4e3a\u4e09\u90e8\u5206\uff0c\u5982\u4e0b\u56fe<\/p>\n
<\/p>\n
\u524d\u7f00\u548c\u65e5\u671f\u90e8\u5206\uff0c\u6ca1\u4ec0\u4e48\u9700\u8981\u89e3\u91ca\u7684\uff0c\u4e3b\u8981\u662fredis\u4e2d\u7684\u751f\u6210\u7684\u5e8f\u5217\u53f7\uff0c\u800c\u8fd9\u9700\u8981\u4f9d\u9760RedisAtomicLong\u6765\u5b9e\u73b0\uff0c\u5148\u770b\u4e0b\u4e0a\u9762\u751f\u6210redis\u5e8f\u5217\u8fc7\u7a0b\u4e2d\u53d1\u751f\u4e86\u4ec0\u4e48<\/p>\n
    \n
  • \u83b7\u53d6redis\u4e2d\u5bf9\u5e94\u4e1a\u52a1\u7684key\uff0c\u751f\u6210\u8fc7\u671f\u65f6\u95f4expireTime<\/li>\n
  • \u83b7\u53d6\u4e86RedisTemplate\u5bf9\u8c61\uff0c\u901a\u8fc7\u8be5\u5bf9\u8c61\u83b7\u53d6RedisConnectionFactory\u5bf9\u8c61<\/li>\n
  • \u5c06key\uff0cRedisConnectionFactory\u5bf9\u8c61\u4f5c\u4e3a\u6784\u9020\u53c2\u6570\u751f\u6210RedisAtomicLong\u5bf9\u8c61\uff0c\u5e76\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4<\/li>\n
  • \u8c03\u7528RedisAtomicLong\u7684incrementAndGet()\u65b9\u6cd5<\/li>\n<\/ul>\n
    \u770b\u4e0bRedisAtomicLong\u6e90\u7801\uff0c\u5f53\u7136\u53ea\u653e\u4e00\u90e8\u5206\u6e90\u7801\uff0c\u4e0d\u4f1a\u653e\u5168\u90e8\uff0cRedisAtomicLong\u7684\u7ed3\u6784\uff0c\u4e3b\u8981\u6784\u9020\u51fd\u6570\uff0c\u548c\u4e0a\u9762\u63d0\u5230\u8fc7\u7684incrementAndGet()\u65b9\u6cd5<\/p>\n
    \npublic class RedisAtomicLong extends Number implements Serializable, BoundKeyOperations\n   \n     {\n    private static final long serialVersionUID = 1L;\n    \/\/redis\u4e2d\u7684key\uff0c\u7528volatile\u4fee\u9970\uff0c\u83b7\u5f97\u539f\u5b50\u6027\n    private volatile String key;\n    \/\/\u5f53\u524d\u7684key-value\u5bf9\u8c61\uff0c\u6839\u636e\u4f20\u5165\u7684key\u83b7\u53d6value\u503c\n    private ValueOperations\n    \n      operations; \/\/\u4f20\u5165\u5f53\u524dredisTemplate\u5bf9\u8c61\uff0c\u4e3aRedisTemplate\u5bf9\u8c61\u7684\u9876\u7ea7\u63a5\u53e3 private RedisOperations\n     \n       generalOps; public RedisAtomicLong(String redisCounter, RedisConnectionFactory factory) { this(redisCounter, (RedisConnectionFactory)factory, (Long)null); } private RedisAtomicLong(String redisCounter, RedisConnectionFactory factory, Long initialValue) { Assert.hasText(redisCounter, \"a valid counter name is required\"); Assert.notNull(factory, \"a valid factory is required\"); \/\/\u521d\u59cb\u5316\u4e00\u4e2aRedisTemplate\u5bf9\u8c61 RedisTemplate\n      \n        redisTemplate = new RedisTemplate(); redisTemplate.setKeySerializer(new StringRedisSerializer()); redisTemplate.setValueSerializer(new GenericToStringSerializer(Long.class)); redisTemplate.setExposeConnection(true); \/\/\u8bbe\u7f6e\u5f53\u524d\u7684redis\u8fde\u63a5\u5de5\u5382 redisTemplate.setConnectionFactory(factory); redisTemplate.afterPropertiesSet(); \/\/\u8bbe\u7f6e\u4f20\u5165\u7684key this.key = redisCounter; \/\/\u8bbe\u7f6e\u5f53\u524d\u7684redisTemplate this.generalOps = redisTemplate; \/\/\u83b7\u53d6\u5f53\u524d\u7684key-value\u96c6\u5408 this.operations = this.generalOps.opsForValue(); \/\/\u8bbe\u7f6e\u9ed8\u8ba4\u503c\uff0c\u5982\u679c\u4f20\u5165\u4e3anull\uff0c\u5219key\u83b7\u53d6operations\u4e2d\u7684value\uff0c\u5982\u679cvalue\u4e3a\u7a7a\uff0c\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u4e3a0 if (initialValue == null) { if (this.operations.get(redisCounter) == null) { this.set(0L); } \/\/\u4e0d\u4e3a\u7a7a\u5219\u8bbe\u7f6e\u4e3a\u4f20\u5165\u7684\u503c } else { this.set(initialValue); } } \/\/\u5c06\u4f20\u5165key\u7684value+1\u5e76\u8fd4\u56de public long incrementAndGet() { return this.operations.increment(this.key, 1L); }\n      \n     \n    \n   <\/pre>\n
    \u5176\u5b9e\u4e3b\u8981\u8fd8\u662f\u901a\u8fc7redis\u7684\u81ea\u589e\u5e8f\u5217\u6765\u5b9e\u73b0<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u4f7f\u7528redis\u751f\u6210\u552f\u4e00\u7f16\u53f7\u53ca\u539f\u7406...<\/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-201138","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201138","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=201138"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201138\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}