{"id":201324,"date":"2025-05-10T08:20:57","date_gmt":"2025-05-10T00:20:57","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201324\/"},"modified":"2025-05-10T08:20:57","modified_gmt":"2025-05-10T00:20:57","slug":"%e5%9f%ba%e4%ba%8eredis%e5%ae%9e%e7%8e%b0%e9%98%bb%e5%a1%9e%e9%98%9f%e5%88%97%e7%9a%84%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201324\/","title":{"rendered":"\u57fa\u4e8eRedis\u5b9e\u73b0\u963b\u585e\u961f\u5217\u7684\u65b9\u5f0f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u57fa\u4e8eRedis\u5b9e\u73b0\u963b\u585e\u961f\u5217\u7684\u65b9\u5f0f<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300a\u57fa\u4e8eRedis\u5b9e\u73b0\u963b\u585e\u961f\u5217\u7684\u65b9\u5f0f\u300b\uff0c\u804a\u804aRedis\u963b\u585e\u961f\u5217\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>\u65e5\u5e38\u9700\u6c42\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u514d\u4f1a\u9047\u5230\u9700\u8981\u901a\u8fc7\u4ee3\u7801\u8fdb\u884c\u5f02\u6b65\u5904\u7406\u7684\u60c5\u51b5\uff0c\u6bd4\u5982\u6279\u91cf\u53d1\u9001\u90ae\u4ef6\uff0c\u6279\u91cf\u53d1\u9001\u77ed\u4fe1\uff0c\u6570\u636e\u5bfc\u5165\uff0c\u4e3a\u4e86\u51cf\u5c11\u7528\u6237\u7684\u7b49\u5f85\uff0c\u4e0d\u5e0c\u671b\u4e00\u76f4\u83ca\u82b1\u8f6c\u554a\u8f6c\uff0c\u56e0\u6b64\u9700\u8981\u8fdb\u884c\u5f02\u6b65\u5904\u7406\uff0c\u505a\u6cd5\u5c31\u662f\u8bb2\u8981\u5904\u7406\u7684\u6570\u636e\u6dfb\u52a0\u5230\u961f\u5217\u5f53\u4e2d\uff0c\u7136\u540e\u6309\u7167\u6392\u961f\u7684\u5148\u540e\u987a\u5e8f\u8fdb\u884c\u5f02\u6b65\u5904\u7406\u3002<\/p>\n<p>\u8fd9\u4e2a\u961f\u5217\uff0c\u53ef\u4ee5\u662f\u4e13\u4e1a\u7684\u6d88\u606f\u961f\u5217\uff0c\u5982 RocketMQ\/RabbitMQ \u7b49\uff0c\u4e00\u822c\u9879\u76ee\u4e2d\uff0c\u5982\u679c\u53ea\u662f\u4e3a\u4e86\u8fdb\u884c\u5f02\u6b65\uff0c\u672a\u514d\u6709\u70b9\u6740\u9e21\u7528\u725b\u5200\u7684\u610f\u5473\u3002<br \/> \u4e5f\u53ef\u4ee5\u4f7f\u7528\u57fa\u4e8e JVM \u5185\u5b58\u5b9e\u73b0\u961f\u5217\uff0c\u4f46\u662f\u5982\u679c\u9879\u76ee\u8fdb\u884c\u4e86\u91cd\u542f\uff0c\u5c31\u4f1a\u9020\u6210\u961f\u5217\u6570\u636e\u4e22\u5931\u3002<br \/> \u5927\u90e8\u5206\u7684\u9879\u76ee\u90fd\u4f1a\u7528\u5230 Redis \u4e2d\u95f4\u4ef6\u4f5c\u4e3a\u7f13\u5b58\u4f7f\u7528\uff0c\u6b64\u65f6\u4f7f\u7528 Redis \u7684 list \u7ed3\u6784\u6765\u5b9e\u73b0\u961f\u5217\u5219\u662f\u975e\u5e38\u5408\u9002\u7684\u9009\u62e9\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u672c\u6587\u4e3b\u8981\u8bb2\u89e3\u57fa\u4e8e Redis \u7684\u65b9\u5f0f\u5b9e\u73b0\u5f02\u6b65\u961f\u5217\u3002<\/p>\n<p>\u672c\u6587\u9996\u53d1\u4e2a\u4eba\u6280\u672f\u535a\u5ba2\uff1a <\/p>\n<p>\u57fa\u4e8e Redis \u7684 list \u5b9e\u73b0\u961f\u5217\u7684\u65b9\u5f0f\u4e5f\u6709\u591a\u79cd\uff0c\u5148\u8bf4\u7b2c\u4e00\u79cd\u4e0d\u63a8\u8350\u7684\u65b9\u5f0f\uff0c\u5373\u4f7f\u7528<code>LPUSH<\/code>\u751f\u4ea7\u6d88\u606f\uff0c\u7136\u540e while(true) \u4e2d\u901a\u8fc7<code>RPOP<\/code>\u6d88\u8d39\u6d88\u606f\uff0c\u8fd9\u79cd\u65b9\u5f0f\u7684\u786e\u53ef\u4ee5\u5b9e\u73b0\uff0c\u4f46\u662f\u4e0d\u65ad\u4ee3\u7801\u4e0d\u65ad\u7684\u8f6e\u8be2\uff0c\u52bf\u5fc5\u4f1a\u6d88\u8017\u4e00\u4e9b\u7cfb\u7edf\u7684\u8d44\u6e90\u3002<\/p>\n<p>\u7b2c\u4e8c\u79cd\u65b9\u5f0f\u4e5f\u662f\u4e0d\u63a8\u8350\u7684\u65b9\u5f0f\uff0c\u4e5f\u662f\u901a\u8fc7 <code>LPUSH<\/code>\u751f\u4ea7\u6d88\u606f\uff0c\u7136\u540e\u901a\u8fc7 <code>BRPOP<\/code> \u8fdb\u884c\u963b\u585e\u5730\u7b49\u5f85\u5e76\u6d88\u8d39\u6d88\u606f\uff0c\u8fd9\u79cd\u65b9\u5f0f\u8f83\u7b2c\u4e00\u79cd\u65b9\u5f0f\u51cf\u5c11\u4e86\u65e0\u7528\u7684\u8f6e\u8be2\uff0c\u964d\u4f4e\u7cfb\u7edf\u8d44\u6e90\u7684\u6d88\u8017\uff0c\u4f46\u662f\u53ef\u80fd\u4f1a\u5b58\u5728\u961f\u5217\u6d88\u606f\u4e22\u5931\u7684\u60c5\u51b5\uff0c\u5982\u679c\u53d6\u51fa\u4e86\u6d88\u606f\u7136\u540e\u5904\u7406\u5931\u8d25\uff0c\u8fd9\u4e2a\u88ab\u53d6\u51fa\u7684\u6d88\u606f\u5c31\u5c06\u4e22\u5931\u3002<\/p>\n<p>\u7b2c\u4e8c\u79cd\u65b9\u5f0f\u5c31\u662f\u4e0b\u6587\u8981\u4ecb\u7ecd\u7684\u65b9\u5f0f\uff0c\u9996\u5148\u4e5f\u662f\u901a\u8fc7 <code>LPUSH<\/code> \u751f\u4ea7\u6d88\u606f\uff0c\u7136\u540e\u901a\u8fc7 <code>BRPOPLPUSH<\/code>\u963b\u585e\u5730\u7b49\u5f85 list \u65b0\u6d88\u606f\u5230\u6765\uff0c\u6709\u4e86\u65b0\u6d88\u606f\u624d\u5f00\u59cb\u6d88\u8d39\uff0c\u540c\u65f6\u5c06\u6d88\u606f\u5907\u4efd\u5230\u53e6\u5916\u4e00\u4e2a list \u5f53\u4e2d\uff0c\u8fd9\u79cd\u65b9\u5f0f\u5177\u5907\u4e86\u7b2c\u4e8c\u79cd\u65b9\u5f0f\u7684\u4f18\u70b9\uff0c\u5373\u51cf\u5c11\u4e86\u65e0\u7528\u7684\u8f6e\u8be2\uff0c\u540c\u65f6\u4e5f\u5bf9\u6d88\u606f\u8fdb\u884c\u4e86\u5907\u4efd\u4e0d\u4f1a\u4e22\u5931\u6570\u636e\uff0c\u5982\u679c\u5904\u7406\u6210\u529f\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>LREM<\/code> \u5bf9\u5907\u4efd\u7684 list \u4e2d\u5f53\u524d\u7684\u8fd9\u6761\u6d88\u606f\u8fdb\u884c\u5220\u9664\u5904\u7406\u3002\u8fd9\u79cd\u65b9\u5f0f\u5b9e\u73b0\u65b9\u5f0f\u53ef\u4ee5\u53c2\u8003 .<\/p>\n<h2>Redis \u57fa\u7840<\/h2>\n<pre>\n# \u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u503c value \u63d2\u5165\u5230\u5217\u8868 key \u7684\u8868\u5934\nLPUSH key value [value \u2026]\n\n# \u963b\u585e\u5f0f\u7b49\u5f85\uff0c\u5c06\u5217\u8868 source \u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20 (\u5c3e\u5143\u7d20) \u5f39\u51fa\uff0c\u5e76\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u5c06 source \u5f39\u51fa\u7684\u5143\u7d20\u63d2\u5165\u5230\u5217\u8868 destination \uff0c\u4f5c\u4e3a destination \u5217\u8868\u7684\u7684\u5934\u5143\u7d20\u3002\u8d85\u65f6\u53c2\u6570 timeout \u63a5\u53d7\u4e00\u4e2a\u4ee5\u79d2\u4e3a\u5355\u4f4d\u7684\u6570\u5b57\u4f5c\u4e3a\u503c\u3002\u8d85\u65f6\u53c2\u6570\u8bbe\u4e3a 0 \u8868\u793a\u963b\u585e\u65f6\u95f4\u53ef\u4ee5\u65e0\u9650\u671f\u5ef6\u957f (block indefinitely) \u3002\nBRPOPLPUSH source destination timeout\n\n# \u6839\u636e\u53c2\u6570 count \u7684\u503c\uff0c\u79fb\u9664\u5217\u8868\u4e2d\u4e0e\u53c2\u6570 value \u76f8\u7b49\u7684\u5143\u7d20\u3002\nLREM key count value\n<\/pre>\n<h2>\u4ee3\u7801\u5b9e\u73b0\u961f\u5217\u6d88\u606f\u751f\u4ea7\u8005<\/h2>\n<p>\u7b14\u8005\u4f7f\u7528\u7684\u662f Spring \u76f8\u5173 API \u5b9e\u73b0\u5bf9 Redis \u6307\u4ee4\u7684\u8c03\u7528\u3002\u9996\u5148\u5b9e\u73b0\u6d88\u606f\u7684\u751f\u4ea7\u4ee3\u7801\uff0c\u5c01\u88c5\u5230\u4e00\u4e2a\u5de5\u5177\u7c7b\u65b9\u6cd5\u5f53\u4e2d\u3002\u8fd9\u91cc\u5f88\u7b80\u5355\uff0c\u5c31\u662f\u8c03\u7528\u4e86 lpush \u65b9\u6cd5\uff0c\u5c06\u5e8f\u5217\u5316\u7684 key \u548c value \u6dfb\u52a0\u5230\u5217\u8868\u5f53\u4e2d\u53bb\u3002<\/p>\n<pre>\n@Resource\nprivate RedisConnectionFactory connectionFactory;\n\npublic void lPush(@Nonnull String key, @Nonnull String value) {\n  RedisConnection connection = RedisConnectionUtils.getConnection(connectionFactory);\n  try {\n    byte[] byteKey = RedisSerializer.string().serialize(getKey(key));\n    byte[] byteValue = RedisSerializer.string().serialize(value);\n    assert byteKey != null;\n    connection.lPush(byteKey, byteValue);\n  } finally {\n    RedisConnectionUtils.releaseConnection(connection, connectionFactory);\n  }\n}\n<\/pre>\n<h2>\u4ee3\u7801\u5b9e\u73b0\u961f\u5217\u6d88\u606f\u6d88\u8d39\u8005<\/h2>\n<p>\u56e0\u4e3a\u5b9e\u73b0\u961f\u5217\u6d88\u8d39\u6d88\u606f\u7684\u4ee3\u7801\u6bd4\u8f83\u591a\uff0c\u4e0d\u53ef\u80fd\u6bcf\u4e2a\u9700\u8981\u963b\u585e\u6d88\u8d39\u7684\u5730\u65b9\uff0c\u5bf9\u9700\u8981\u5199\u8fd9\u4e00\u5768\u4ee3\u7801\uff0c\u56e0\u6b64\u4f7f\u7528 Java8 \u7684\u51fd\u6570\u5f0f\u63a5\u53e3\u5b9e\u73b0\u65b9\u6cd5\u7684\u4f20\u9012\uff0c\u540c\u65f6\u963b\u585e\u5f0f\u83b7\u53d6\u6d88\u606f\u4ee3\u7801\u4f7f\u7528\u65b0\u7ebf\u7a0b\u53bb\u6267\u884c\u3002<\/p>\n<p>\u6709\u4eba\u770b\u5230\u4ee5\u4e0b\u4ee3\u7801\u8981\u5410\u69fd\u4e86\uff0c\u4e0d\u662f\u8bf4\u4e0d\u7528 while(true) \u5417\uff0c\u600e\u4e48\u4f60\u8fd9\u91cc\u9762\u8fd8\u662f\u6709\uff0c\u8fd9\u91cc\u7a0d\u5fae\u89e3\u91ca\u4e00\u4e0b\uff0c\u56e0\u4e3a SpringBoot \u4e00\u822c\u4f1a\u6307\u5b9a timeout \u7684\u5168\u5c40\u8d85\u65f6\u65f6\u95f4\uff0c\u5373\u4f7f <code>BRPOPLPUSH<\/code> \u8bbe\u7f6e\u4e86 0\uff0c\u5373\u65e0\u9650\u671f\uff0c\u5f53\u8d85\u51fa\u4e86 timeout \u8bbe\u7f6e\u7684\u503c\u65f6\uff0c\u5c31\u4f1a\u629b\u51fa QueryTimeoutException \u5f02\u5e38\u5bfc\u81f4\u7ebf\u7a0b\u9000\u51fa\uff0c\u56e0\u6b64\u6dfb\u52a0\u4e86 try\/catch \u5bf9\u5f02\u5e38\u8fdb\u884c\u6355\u83b7\u5e76\u5ffd\u7565\uff0c\u540c\u65f6\u4f7f\u7528 while(true) \u4fdd\u8bc1\u7ebf\u7a0b\u53ef\u4ee5\u7ee7\u7eed\u6267\u884c\u3002<br \/> \u4ee3\u7801\u4e2d\u8bb0\u5f55\u4e86\u5f53\u524d\u6d88\u606f\u5904\u7406\u7ed3\u679c\uff0c\u5982\u679c\u5904\u7406\u7ed3\u679c\u4e3a\u6210\u529f\uff0c\u9700\u8981\u5bf9\u5907\u4efd\u961f\u5217\u7684\u5f53\u524d\u6d88\u606f\u8fdb\u884c\u5220\u9664\u3002<\/p>\n<pre>\npublic void bRPopLPush(@Nonnull String key, Consumer\n   \n     consumer) {\n  CompletableFuture.runAsync(() -&gt; {\n    RedisConnection connection = RedisConnectionUtils.getConnection(connectionFactory);\n    try {\n      byte[] srcKey = RedisSerializer.string().serialize(getKey(key));\n      byte[] dstKey = RedisSerializer.string().serialize(getBackupKey(key));\n      assert srcKey != null;\n      assert dstKey != null;\n      while (true) {\n        byte[] byteValue = new byte[0];\n        boolean success = false;\n        try {\n          byteValue = connection.bRPopLPush(0, srcKey, dstKey);\n          if (byteValue != null &amp;&amp; byteValue.length != 0) {\n            consumer.accept(new String(byteValue));\n            success = true;\n          }\n        } catch (Exception ignored) {\n          \/\/ \u9632\u6b62\u83b7\u53d6 key \u8fbe\u5230\u8d85\u65f6\u65f6\u95f4\u629b\u51fa QueryTimeoutException \u5f02\u5e38\u9000\u51fa\n        } finally {\n          if (success) {\n            \/\/ \u5904\u7406\u6210\u529f\u624d\u5220\u9664\u5907\u4efd\u961f\u5217\u7684 key\n            connection.lRem(dstKey, 1, byteValue);\n          }\n        }\n      }\n    } finally {\n      RedisConnectionUtils.releaseConnection(connection, connectionFactory);\n    }\n  });\n}\n\n   <\/pre>\n<h2>\u6d4b\u8bd5\u4ee3\u7801<\/h2>\n<pre>\n@Test\npublic void testLPush() throws InterruptedException {\n  String queueA = \"queueA\";\n  int i = 0;\n  while (true) {\n    String msg = \"Hello-\" + i++;\n    redisBlockQueue.lPush(queueA, msg);\n    System.out.println(\"lPush: \" + msg);\n    Thread.sleep(3000);\n  }\n}\n\n@Test\npublic void testBRPopLPush() {\n  String queueA = \"queueA\";\n  redisBlockQueue.bRPopLPush(queueA, (val) -&gt; {\n    \/\/ \u5728\u8fd9\u91cc\u5904\u7406\u5177\u4f53\u7684\u4e1a\u52a1\u903b\u8f91\n    System.out.println(\"val: \" + val);\n  });\n\n  \/\/ \u9632\u6b62 Junit \u8fdb\u7a0b\u9000\u51fa\n  LockSupport.park();\n}\n<\/pre>\n<h2>\u9879\u76ee\u4f7f\u7528\u65b9\u5f0f<\/h2>\n<p>\u4e3a\u4e86\u65b9\u4fbf\u4f7f\u7528\uff0c\u6211\u5c06\u5176\u62bd\u53d6\u4e3a\u4e86\u4e00\u4e2a\u5de5\u5177\u7c7b\uff0c\u4f7f\u7528\u65f6\u901a\u8fc7 Spring \u6ce8\u5165\u4f7f\u7528\u5373\u53ef\uff0c<br \/> \u961f\u5217\u6d88\u8d39\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u65b9\u5f0f\u5728\u9879\u76ee\u542f\u52a8\u7684\u65f6\u5019\u5c31\u8fdb\u884c\u963b\u585e\u76d1\u542c\u961f\u5217\uff0c\u7b49\u5f85\u6d88\u8d39<\/p>\n<pre>\n@Resource\nprivate RedisBlockQueue redisBlockQueue;\n\n@PostConstruct\npublic void init() {\n   redisBlockQueue.bRPopLPush(xx, (value) -&gt; {\n     \/\/...\n   });\n}\n<\/pre>\n<p>\u672c\u6587\u5b8c\u6574\u4ee3\u7801\u4e0b\u8f7d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8eRedis\u5b9e\u73b0\u963b\u585e\u961f\u5217\u7684\u65b9\u5f0f&#46;&#46;&#46;<\/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-201324","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201324","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=201324"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201324\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201324"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201324"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201324"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}