{"id":10008212,"date":"2023-09-01T12:00:00","date_gmt":"2023-09-01T04:00:00","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008212"},"modified":"2023-09-01T12:00:00","modified_gmt":"2023-09-01T04:00:00","slug":"%e6%8d%a2%e4%b8%8a-hikaricp-%e8%bf%9e%e6%8e%a5%e6%b1%a0%ef%bc%8c%e5%a4%aa%e5%bf%ab%e4%ba%86%ef%bc%81","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008212","title":{"rendered":"\u6362\u4e0a HikariCP \u8fde\u63a5\u6c60\uff0c\u592a\u5feb\u4e86\uff01"},"content":{"rendered":"

\"\"<\/p>\n

\u80cc\u666f<\/strong><\/h2>\n

\u5728\u6211\u4eec\u5e73\u5e38\u7684\u7f16\u7801\u4e2d\uff0c\u901a\u5e38\u4f1a\u5c06\u4e00\u4e9b\u5bf9\u8c61\u4fdd\u5b58\u8d77\u6765\uff0c\u8fd9\u4e3b\u8981\u8003\u8651\u7684\u662f\u5bf9\u8c61\u7684\u521b\u5efa\u6210\u672c\u3002<\/p>\n

\u6bd4\u5982\u50cf\u7ebf\u7a0b\u8d44\u6e90\u3001\u6570\u636e\u5e93\u8fde\u63a5\u8d44\u6e90\u6216\u8005 TCP \u8fde\u63a5\u7b49\uff0c\u8fd9\u7c7b\u5bf9\u8c61\u7684\u521d\u59cb\u5316\u901a\u5e38\u8981\u82b1\u8d39\u6bd4\u8f83\u957f\u7684\u65f6\u95f4\uff0c\u5982\u679c\u9891\u7e41\u5730\u7533\u8bf7\u548c\u9500\u6bc1\uff0c\u5c31\u4f1a\u8017\u8d39\u5927\u91cf\u7684\u7cfb\u7edf\u8d44\u6e90\uff0c\u9020\u6210\u4e0d\u5fc5\u8981\u7684\u6027\u80fd\u635f\u5931\u3002<\/p>\n

\u5e76\u4e14\u8fd9\u4e9b\u5bf9\u8c61\u90fd\u6709\u4e00\u4e2a\u663e\u8457\u7684\u7279\u5f81\uff0c\u5c31\u662f\u901a\u8fc7\u8f7b\u91cf\u7ea7\u7684\u91cd\u7f6e\u5de5\u4f5c\uff0c\u53ef\u4ee5\u5faa\u73af\u3001\u91cd\u590d\u5730\u4f7f\u7528\u3002<\/p>\n

\u8fd9\u4e2a\u65f6\u5019\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u865a\u62df\u7684\u6c60\u5b50\uff0c\u5c06\u8fd9\u4e9b\u8d44\u6e90\u4fdd\u5b58\u8d77\u6765\uff0c\u5f53\u4f7f\u7528\u7684\u65f6\u5019\uff0c\u6211\u4eec\u5c31\u4ece\u6c60\u5b50\u91cc\u5feb\u901f\u83b7\u53d6\u4e00\u4e2a\u5373\u53ef\u3002<\/p>\n

\u5728 Java \u4e2d\uff0c\u6c60\u5316\u6280\u672f\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5e38\u89c1\u7684\u5c31\u6709\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u3001\u7ebf\u7a0b\u6c60\u7b49\uff0c\u672c\u6587\u4e3b\u8bb2\u8fde\u63a5\u6c60\uff0c\u7ebf\u7a0b\u6c60\u6211\u4eec\u5c06\u5728\u540e\u7eed\u7684\u535a\u5ba2\u4e2d\u8fdb\u884c\u4ecb\u7ecd\u3002<\/p>\n

\u516c\u7528\u6c60\u5316\u5305 Commons Pool 2<\/strong><\/h2>\n

\u6211\u4eec\u9996\u5148\u6765\u770b\u4e00\u4e0b Java \u4e2d\u516c\u7528\u7684\u6c60\u5316\u5305 Commons Pool 2\uff0c\u6765\u4e86\u89e3\u4e00\u4e0b\u5bf9\u8c61\u6c60\u7684\u4e00\u822c\u7ed3\u6784\u3002<\/p>\n

\u6839\u636e\u6211\u4eec\u7684\u4e1a\u52a1\u9700\u6c42\uff0c\u4f7f\u7528\u8fd9\u5957 API \u80fd\u591f\u5f88\u5bb9\u6613\u5b9e\u73b0\u5bf9\u8c61\u7684\u6c60\u5316\u7ba1\u7406\u3002<\/p>\n

<!-- https:\/\/mvnrepository.com\/artifact\/org.apache.commons\/commons-pool2 -->\n<dependency>\n    <groupId>org.apache.commons<\/groupId>\n    <artifactId>commons-pool2<\/artifactId>\n    <version>2.11.1<\/version>\n<\/dependency><\/code><\/pre>\n
GenericObjectPool \u662f\u5bf9\u8c61\u6c60\u7684\u6838\u5fc3\u7c7b\uff0c\u901a\u8fc7\u4f20\u5165\u4e00\u4e2a\u5bf9\u8c61\u6c60\u7684\u914d\u7f6e\u548c\u4e00\u4e2a\u5bf9\u8c61\u7684\u5de5\u5382\uff0c\u5373\u53ef\u5feb\u901f\u521b\u5efa\u5bf9\u8c61\u6c60\u3002<\/p>\n
public GenericObjectPool(\n            final PooledObjectFactory<T> factory,\n            final GenericObjectPoolConfig<T> config)<\/code><\/pre>\n
\u63a8\u8350\u4e00\u4e2a\u5f00\u6e90\u514d\u8d39\u7684 Spring Boot \u6700\u5168\u6559\u7a0b\uff1a<\/p>\n
https:\/\/github.com\/javastacks\/spring-boot-best-practice<\/a><\/p><\/blockquote>\n
\u6848\u4f8b<\/strong><\/h3>\n
Redis \u7684\u5e38\u7528\u5ba2\u6237\u7aef Jedis\uff0c\u5c31\u662f\u4f7f\u7528 Commons Pool \u7ba1\u7406\u8fde\u63a5\u6c60\u7684\uff0c\u53ef\u4ee5\u8bf4\u662f\u4e00\u4e2a\u6700\u4f73\u5b9e\u8df5\u3002\u4e0b\u56fe\u662f Jedis \u4f7f\u7528\u5de5\u5382\u521b\u5efa\u5bf9\u8c61\u7684\u4e3b\u8981\u4ee3\u7801\u5757\u3002<\/p>\n
\u5bf9\u8c61\u5de5\u5382\u7c7b\u6700\u4e3b\u8981\u7684\u65b9\u6cd5\u5c31\u662fmakeObject\uff0c\u5b83\u7684\u8fd4\u56de\u503c\u662f PooledObject \u7c7b\u578b\uff0c\u53ef\u4ee5\u5c06\u5bf9\u8c61\u4f7f\u7528 new DefaultPooledObject<>(obj) \u8fdb\u884c\u7b80\u5355\u5305\u88c5\u8fd4\u56de\u3002<\/p>\n
redis.clients.jedis.JedisFactory\uff0c\u4f7f\u7528\u5de5\u5382\u521b\u5efa\u5bf9\u8c61\u3002<\/p>\n
@Override\npublic PooledObject<Jedis> makeObject() throws Exception {\n  Jedis jedis = null;\n  try {\n    jedis = new Jedis(jedisSocketFactory, clientConfig);\n    \/\/\u4e3b\u8981\u7684\u8017\u65f6\u64cd\u4f5c\n    jedis.connect();\n    \/\/\u8fd4\u56de\u5305\u88c5\u5bf9\u8c61\n    return new DefaultPooledObject<>(jedis);\n  } catch (JedisException je) {\n    if (jedis != null) {\n      try {\n        jedis.quit();\n      } catch (RuntimeException e) {\n        logger.warn("Error while QUIT", e);\n      }\n      try {\n        jedis.close();\n      } catch (RuntimeException e) {\n        logger.warn("Error while close", e);\n      }\n    }\n    throw je;\n  }\n}<\/code><\/pre>\n
\u6211\u4eec\u518d\u6765\u4ecb\u7ecd\u4e00\u4e0b\u5bf9\u8c61\u7684\u751f\u6210\u8fc7\u7a0b\uff0c\u5982\u4e0b\u56fe\uff0c\u5bf9\u8c61\u5728\u8fdb\u884c\u83b7\u53d6\u65f6\uff0c\u5c06\u9996\u5148\u5c1d\u8bd5\u4ece\u5bf9\u8c61\u6c60\u91cc\u62ff\u51fa\u4e00\u4e2a\uff0c\u5982\u679c\u5bf9\u8c61\u6c60\u4e2d\u6ca1\u6709\u7a7a\u95f2\u7684\u5bf9\u8c61\uff0c\u5c31\u4f7f\u7528\u5de5\u5382\u7c7b\u63d0\u4f9b\u7684\u65b9\u6cd5\uff0c\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u3002<\/p>\n
public T borrowObject(final Duration borrowMaxWaitDuration) throws Exception {\n    \/\/\u6b64\u5904\u7701\u7565\u82e5\u5e72\u884c\n    while (p == null) {\n        create = false;\n        \/\/\u9996\u5148\u5c1d\u8bd5\u4ece\u6c60\u5b50\u4e2d\u83b7\u53d6\u3002\n        p = idleObjects.pollFirst();\n        \/\/ \u6c60\u5b50\u91cc\u83b7\u53d6\u4e0d\u5230\uff0c\u624d\u8c03\u7528\u5de5\u5382\u5185\u751f\u6210\u65b0\u5b9e\u4f8b\n        if (p == null) {\n            p = create();\n            if (p != null) {\n                create = true;\n            }\n        }\n        \/\/\u6b64\u5904\u7701\u7565\u82e5\u5e72\u884c\n    }\n    \/\/\u6b64\u5904\u7701\u7565\u82e5\u5e72\u884c\n}<\/code><\/pre>\n
\u90a3\u5bf9\u8c61\u662f\u5b58\u5728\u4ec0\u4e48\u5730\u65b9\u7684\u5462\uff1f\u8fd9\u4e2a\u5b58\u50a8\u7684\u804c\u8d23\uff0c\u5c31\u662f\u7531\u4e00\u4e2a\u53eb\u4f5c LinkedBlockingDeque \u7684\u7ed3\u6784\u6765\u627f\u62c5\u7684\uff0c\u5b83\u662f\u4e00\u4e2a\u53cc\u5411\u7684\u961f\u5217\u3002<\/p>\n
\u63a5\u4e0b\u6765\u770b\u4e00\u4e0b GenericObjectPoolConfig \u7684\u4e3b\u8981\u5c5e\u6027\uff1a<\/p>\n
\/\/ GenericObjectPoolConfig\u672c\u8eab\u7684\u5c5e\u6027\nprivate int maxTotal = DEFAULT_MAX_TOTAL;\nprivate int maxIdle = DEFAULT_MAX_IDLE;\nprivate int minIdle = DEFAULT_MIN_IDLE;\n\/\/ \u5176\u7236\u7c7bBaseObjectPoolConfig\u7684\u5c5e\u6027\nprivate boolean lifo = DEFAULT_LIFO;\nprivate boolean fairness = DEFAULT_FAIRNESS;\nprivate long maxWaitMillis = DEFAULT_MAX_WAIT_MILLIS;\nprivate long minEvictableIdleTimeMillis = DEFAULT_MIN_EVICTABLE_IDLE_TIME_MILLIS;\nprivate long evictorShutdownTimeoutMillis = DEFAULT_EVICTOR_SHUTDOWN_TIMEOUT_MILLIS;\nprivate long softMinEvictableIdleTimeMillis = DEFAULT_SOFT_MIN_EVICTABLE_IDLE_TIME_MILLIS;\nprivate int numTestsPerEvictionRun = DEFAULT_NUM_TESTS_PER_EVICTION_RUN;\nprivate EvictionPolicy<T> evictionPolicy = null;\n\/\/ Only 2.6.0 applications set this\nprivate String evictionPolicyClassName = DEFAULT_EVICTION_POLICY_CLASS_NAME;\nprivate boolean testOnCreate = DEFAULT_TEST_ON_CREATE;\nprivate boolean testOnBorrow = DEFAULT_TEST_ON_BORROW;\nprivate boolean testOnReturn = DEFAULT_TEST_ON_RETURN;\nprivate boolean testWhileIdle = DEFAULT_TEST_WHILE_IDLE;\nprivate long timeBetweenEvictionRunsMillis = DEFAULT_TIME_BETWEEN_EVICTION_RUNS_MILLIS;\nprivate boolean blockWhenExhausted = DEFAULT_BLOCK_WHEN_EXHAUSTED;<\/code><\/pre>\n
\u53c2\u6570\u5f88\u591a\uff0c\u8981\u60f3\u4e86\u89e3\u53c2\u6570\u7684\u610f\u4e49\uff0c\u6211\u4eec\u9996\u5148\u6765\u770b\u4e00\u4e0b\u4e00\u4e2a\u6c60\u5316\u5bf9\u8c61\u5728\u6574\u4e2a\u6c60\u5b50\u4e2d\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\n
\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u6c60\u5b50\u7684\u64cd\u4f5c\u4e3b\u8981\u6709\u4e24\u4e2a\uff1a\u4e00\u4e2a\u662f\u4e1a\u52a1\u7ebf\u7a0b\uff0c\u4e00\u4e2a\u662f\u68c0\u6d4b\u7ebf\u7a0b\u3002<\/p>\n
\"\"<\/p>\n
\u5bf9\u8c61\u6c60\u5728\u8fdb\u884c\u521d\u59cb\u5316\u65f6\uff0c\u8981\u6307\u5b9a\u4e09\u4e2a\u4e3b\u8981\u7684\u53c2\u6570\uff1a<\/p>\n