{"id":45508,"date":"2024-12-01T09:57:34","date_gmt":"2024-12-01T01:57:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/45508\/"},"modified":"2024-12-01T09:57:34","modified_gmt":"2024-12-01T01:57:34","slug":"redis%e5%9c%a8scala%e9%a1%b9%e7%9b%ae%e4%b8%ad%e7%9a%84%e4%bd%bf%e7%94%a8%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/45508\/","title":{"rendered":"Redis\u5728Scala\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6280\u5de7"},"content":{"rendered":"

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

Redis\u5728Scala\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6280\u5de7<\/h1>\n

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

\u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60\u6570\u636e\u5e93<\/span>\uff0c\u90a3\u4e48\u672c\u6587\u300aRedis\u5728Scala\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6280\u5de7\u300b<\/span>\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec<\/span>\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/span><\/p>\n

Redis\u5728Scala\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6280\u5de7<\/p>\n

Redis\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u7cfb\u7edf\uff0c\u5e38\u88ab\u7528\u4f5c\u7f13\u5b58\u3001\u6d88\u606f\u961f\u5217\u3001\u5206\u5e03\u5f0f\u9501\u7b49\u3002\u5728Scala\u9879\u76ee\u4e2d\uff0c\u4f7f\u7528Redis\u53ef\u4ee5\u63d0\u5347\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5728Scala\u9879\u76ee\u4e2d\u4f7f\u7528Redis\u7684\u6280\u5de7\uff0c\u5e76\u7b80\u8981\u5c55\u793a\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u8fde\u63a5Redis<\/p>\n

\u5728Scala\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Jedis\u6765\u8fde\u63a5Redis\u3002Jedis\u662f\u4e00\u4e2aJava\u8fde\u63a5Redis\u7684\u5ba2\u6237\u7aef\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728\u9879\u76ee\u7684build.sbt\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4f9d\u8d56\uff1a<\/p>\n

libraryDependencies += \"redis.clients\" % \"jedis\" % \"3.6.0\"<\/pre>\n
\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2aJedis\u5bf9\u8c61\u5e76\u8fde\u63a5\u5230Redis\uff1a<\/p>\n
import redis.clients.jedis.Jedis\n\nval jedis = new Jedis(\"localhost\", 6379)<\/pre>\n
\u4e8c\u3001\u8bbe\u7f6e\u548c\u83b7\u53d6\u503c<\/p>\n
\u5728Redis\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528set\u65b9\u6cd5\u8bbe\u7f6e\u4e00\u4e2a\u952e\u503c\u5bf9\uff1a<\/p>\n
jedis.set(\"key\", \"value\")<\/pre>\n
\u7136\u540e\uff0c\u4f7f\u7528get\u65b9\u6cd5\u83b7\u53d6\u952e\u5bf9\u5e94\u7684\u503c\uff1a<\/p>\n
val value = jedis.get(\"key\")<\/pre>\n
\u4e09\u3001\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4<\/p>\n
\u4e3a\u4e86\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u6027\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u7ed9Redis\u4e2d\u7684\u952e\u8bbe\u7f6e\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\u3002\u5f53\u952e\u8fc7\u671f\u540e\uff0cRedis\u4f1a\u81ea\u52a8\u5220\u9664\u5b83\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528expire\u65b9\u6cd5\u6765\u8bbe\u7f6e\u952e\u7684\u8fc7\u671f\u65f6\u95f4\uff1a<\/p>\n
jedis.set(\"key\", \"value\")\njedis.expire(\"key\", 60) \/\/ \u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u4e3a60\u79d2<\/pre>\n
\u56db\u3001\u4f7f\u7528Hash\u5b58\u50a8\u5bf9\u8c61<\/p>\n
\u5728Scala\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5b58\u50a8\u4e00\u4e9b\u590d\u6742\u7684\u5bf9\u8c61\u3002Redis\u7684Hash\u6570\u636e\u7ed3\u6784\u975e\u5e38\u9002\u5408\u5b58\u50a8\u8fd9\u79cd\u7c7b\u578b\u7684\u6570\u636e\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528hmset\u65b9\u6cd5\u8bbe\u7f6e\u4e00\u4e2a\u952e\u5bf9\u5e94\u7684Hash\u5bf9\u8c61\uff1a<\/p>\n
val user = Map(\"name\" -> \"John\", \"age\" -> \"25\", \"email\" -> \"john@example.com\")\njedis.hmset(\"user:1\", user.asJava)<\/pre>\n
\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528hgetall\u65b9\u6cd5\u83b7\u53d6\u8fd9\u4e2aHash\u5bf9\u8c61\u7684\u6240\u6709\u5b57\u6bb5\u548c\u503c\uff1a<\/p>\n
val fieldsAndValues = jedis.hgetall(\"user:1\")<\/pre>\n
\u4e94\u3001\u53d1\u5e03\u548c\u8ba2\u9605\u6d88\u606f<\/p>\n
Redis\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u4e2a\u6d88\u606f\u961f\u5217\u6765\u4f7f\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b83\u8fdb\u884c\u53d1\u5e03\u548c\u8ba2\u9605\u6d88\u606f\u7684\u529f\u80fd\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2aRedis\u7684JedisPubSub\u5bf9\u8c61\uff0c\u5e76\u91cd\u5199\u5b83\u7684onMessage\u65b9\u6cd5\uff1a<\/p>\n
import redis.clients.jedis.JedisPubSub\n\nval jedisPubSub = new JedisPubSub() {\n  override def onMessage(channel: String, message: String): Unit = {\n    println(s\"Received message: $message from channel: $channel\")\n  }\n}<\/pre>\n
\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528subscribe\u65b9\u6cd5\u8ba2\u9605\u4e00\u4e2a\u9891\u9053\uff0c\u5e76\u5728onMessage\u65b9\u6cd5\u4e2d\u5904\u7406\u63a5\u6536\u5230\u7684\u6d88\u606f\uff1a<\/p>\n
jedis.subscribe(jedisPubSub, \"channel\")<\/pre>\n
\u6700\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528publish\u65b9\u6cd5\u53d1\u5e03\u4e00\u6761\u6d88\u606f\u5230\u6307\u5b9a\u9891\u9053\uff1a<\/p>\n
jedis.publish(\"channel\", \"Hello, Redis!\")<\/pre>\n
\u516d\u3001\u4f7f\u7528\u5206\u5e03\u5f0f\u9501<\/p>\n
\u5728Scala\u9879\u76ee\u4e2d\uff0c\u5206\u5e03\u5f0f\u9501\u662f\u975e\u5e38\u6709\u7528\u7684\uff0c\u53ef\u4ee5\u7528\u6765\u63a7\u5236\u5e76\u53d1\u8bbf\u95ee\u548c\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u3002Redis\u7684setnx\u547d\u4ee4\u53ef\u4ee5\u5b9e\u73b0\u7b80\u5355\u7684\u5206\u5e03\u5f0f\u9501\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528setnx\u65b9\u6cd5\u5c1d\u8bd5\u52a0\u9501\uff0c\u5e76\u8bbe\u7f6e\u9501\u7684\u8fc7\u671f\u65f6\u95f4\uff1a<\/p>\n
val lock = \"lock\"\nval expireTime = 60 \/\/ \u9501\u7684\u8fc7\u671f\u65f6\u95f4\u4e3a60\u79d2\n\nval isLocked = jedis.setnx(lock, \"1\") == 1\nif (isLocked) {\n  jedis.expire(lock, expireTime)\n  \/\/ \u6267\u884c\u52a0\u9501\u540e\u7684\u64cd\u4f5c\n  \/\/ ...\n} else {\n  \/\/ \u9501\u88ab\u5176\u4ed6\u8fdb\u7a0b\u5360\u7528\uff0c\u6267\u884c\u5176\u4ed6\u7684\u903b\u8f91\n  \/\/ ...\n}<\/pre>\n
\u4e03\u3001\u4f7f\u7528\u8fde\u63a5\u6c60<\/p>\n
\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fde\u63a5\u6c60\u7ba1\u7406\u4e0eRedis\u7684\u8fde\u63a5\u3002\u5728Scala\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528JedisPool\u6765\u7ba1\u7406\u8fde\u63a5\u6c60\u3002\u5728\u5b9e\u9645\u4f7f\u7528\u65f6\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2aJedisPool\u5bf9\u8c61\uff0c\u5e76\u5728\u9700\u8981\u8fde\u63a5Redis\u65f6\u4ece\u6c60\u4e2d\u83b7\u53d6\u8fde\u63a5\u3002\u4f7f\u7528\u5b8c\u6bd5\u540e\uff0c\u8bb0\u5f97\u5c06\u8fde\u63a5\u8fd4\u56de\u5230\u8fde\u63a5\u6c60\u4e2d\uff1a<\/p>\n
import redis.clients.jedis.JedisPool\nimport redis.clients.jedis.JedisPoolConfig\n\nval config = new JedisPoolConfig()\nconfig.setMaxTotal(100) \/\/ \u8bbe\u7f6e\u6700\u5927\u8fde\u63a5\u6570\u4e3a100\nconfig.setTestOnBorrow(true)\n\nval pool = new JedisPool(config, \"localhost\", 6379)\n\nval jedis = pool.getResource()\n\n\/\/ \u4f7f\u7528\u8fde\u63a5\u8fdb\u884c\u64cd\u4f5c\n\njedis.close()<\/pre>\n
\u4ee5\u4e0a\u662f\u5728Scala\u9879\u76ee\u4e2d\u4f7f\u7528Redis\u7684\u4e00\u4e9b\u6280\u5de7\u548c\u4ee3\u7801\u793a\u4f8b\u3002\u901a\u8fc7\u5408\u7406\u5730\u4f7f\u7528Redis\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u5347\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u5f53\u7136\uff0c\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u548c\u573a\u666f\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u548c\u6269\u5c55Redis\u7684\u4f7f\u7528\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5bf9\u4f60\u5728Scala\u9879\u76ee\u4e2d\u4f7f\u7528Redis\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6570\u636e\u5e93\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8golang\u5b66\u4e60\u7f51\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n
\n
\n <\/dt>\n
\n   Node.js\u5f00\u53d1\u4e2d\u7684Redis\u5e94\u7528\u6307\u5357\n <\/dd>\n<\/dl>\n
\n
\n <\/dt>\n
\n   Redis\u4e0eObjective-C\u5f00\u53d1\uff1a\u6784\u5efa\u9ad8\u6548\u7684\u79fb\u52a8\u5e94\u7528\u540e\u7aef\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
Redis\u5728Scala\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6280\u5de7 \u6536\u85cf \u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60\u6570\u636e\u5e93\uff0c\u90a3\u4e48\u672c\u6587\u300aRedis\u5728Scala\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6280\u5de7\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~ Redis\u5728Scala\u9879\u76ee\u4e2d\u7684\u4f7f\u7528\u6280\u5de7 Redis\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u7cfb\u7edf\uff0c\u5e38\u88ab\u7528\u4f5c\u7f13\u5b58\u3001\u6d88\u606f\u961f\u5217\u3001\u5206\u5e03\u5f0f\u9501\u7b49\u3002\u5728Scala\u9879\u76ee\u4e2d\uff0c\u4f7f\u7528Redis\u53ef\u4ee5\u63d0\u5347\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5728Scala\u9879\u76ee\u4e2d\u4f7f\u7528Redis\u7684\u6280\u5de7\uff0c\u5e76\u7b80\u8981\u5c55\u793a\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u8fde\u63a5Redis \u5728Scala\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Jedis\u6765\u8fde\u63a5Redis\u3002Jedis\u662f\u4e00\u4e2aJava\u8fde\u63a5Redis\u7684\u5ba2\u6237\u7aef\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728\u9879\u76ee\u7684build.sbt\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4f9d\u8d56\uff1a libraryDependencies += “redis.clients” % “jedis” % “3.6.0” \u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2aJedis\u5bf9\u8c61\u5e76\u8fde\u63a5\u5230Redis\uff1a import redis.clients.jedis.Jedis val jedis = new Jedis(“localhost”, 6379) \u4e8c\u3001\u8bbe\u7f6e\u548c\u83b7\u53d6\u503c \u5728Redis\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528set\u65b9\u6cd5\u8bbe\u7f6e\u4e00\u4e2a\u952e\u503c\u5bf9\uff1a jedis.set(“key”, “value”) \u7136\u540e\uff0c\u4f7f\u7528get\u65b9\u6cd5\u83b7\u53d6\u952e\u5bf9\u5e94\u7684\u503c\uff1a val value = jedis.get(“key”) \u4e09\u3001\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4 \u4e3a\u4e86\u63d0\u9ad8\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u6027\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u7ed9Redis\u4e2d\u7684\u952e\u8bbe\u7f6e\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\u3002\u5f53\u952e\u8fc7\u671f\u540e\uff0cRedis\u4f1a\u81ea\u52a8\u5220\u9664\u5b83\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528expire\u65b9\u6cd5\u6765\u8bbe\u7f6e\u952e\u7684\u8fc7\u671f\u65f6\u95f4\uff1a jedis.set(“key”, “value”) jedis.expire(“key”, 60) \/\/ \u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u4e3a60\u79d2 \u56db\u3001\u4f7f\u7528Hash\u5b58\u50a8\u5bf9\u8c61 \u5728Scala\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5b58\u50a8\u4e00\u4e9b\u590d\u6742\u7684\u5bf9\u8c61\u3002Redis\u7684Hash\u6570\u636e\u7ed3\u6784\u975e\u5e38\u9002\u5408\u5b58\u50a8\u8fd9\u79cd\u7c7b\u578b\u7684\u6570\u636e\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528hmset\u65b9\u6cd5\u8bbe\u7f6e\u4e00\u4e2a\u952e\u5bf9\u5e94\u7684Hash\u5bf9\u8c61\uff1a val user = Map(“name” -> “John”, “age” -> “25”, “email” -> “john@example.com”) jedis.hmset(“user:1”, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-45508","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/45508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=45508"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/45508\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=45508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=45508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=45508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}