{"id":1995,"date":"2025-06-14T19:05:33","date_gmt":"2025-06-14T11:05:33","guid":{"rendered":"https:\/\/note.ui11.cc\/?p=1995"},"modified":"2025-06-14T19:05:36","modified_gmt":"2025-06-14T11:05:36","slug":"1-%e5%a6%82%e4%bd%95%e7%90%86%e8%a7%a3-rabbitmq-%e7%9a%84%e5%b7%a5%e4%bd%9c%e6%a8%a1%e5%bc%8f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/note.ui11.cc\/index.php\/2025\/06\/14\/1-%e5%a6%82%e4%bd%95%e7%90%86%e8%a7%a3-rabbitmq-%e7%9a%84%e5%b7%a5%e4%bd%9c%e6%a8%a1%e5%bc%8f%ef%bc%9f\/","title":{"rendered":"1. \u5982\u4f55\u7406\u89e3 RabbitMQ \u7684\u5de5\u4f5c\u6a21\u5f0f\uff1f"},"content":{"rendered":"\n

\u53c2\u8003\u7b54\u6848<\/strong>\uff1a
RabbitMQ \u63d0\u4f9b\u591a\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u6838\u5fc3\u533a\u522b\u5728\u4e8e\u4ea4\u6362\u673a\uff08Exchange\uff09\u7684\u7c7b\u578b\u548c\u6d88\u606f\u8def\u7531\u673a\u5236\uff1a<\/p>\n\n\n\n

    \n
  1. \u7b80\u5355\u6a21\u5f0f\uff08Simple\uff09<\/strong>\uff1a\u76f4\u8fde\u4ea4\u6362\u673a\uff08Direct\uff09\uff0c\u4e00\u5bf9\u4e00\u6d88\u606f\u961f\u5217\u3002<\/li>\n\n\n\n
  2. \u5de5\u4f5c\u961f\u5217\u6a21\u5f0f\uff08Work Queues\uff09<\/strong>\uff1a\u591a\u4e2a\u6d88\u8d39\u8005\u7ade\u4e89\u540c\u4e00\u961f\u5217\u7684\u6d88\u606f\uff0c\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002<\/li>\n\n\n\n
  3. \u53d1\u5e03 \/ \u8ba2\u9605\u6a21\u5f0f\uff08Publish\/Subscribe\uff09<\/strong>\uff1a\u6247\u5f62\u4ea4\u6362\u673a\uff08Fanout\uff09\uff0c\u5c06\u6d88\u606f\u5e7f\u64ad\u5230\u6240\u6709\u7ed1\u5b9a\u961f\u5217\u3002<\/li>\n\n\n\n
  4. \u8def\u7531\u6a21\u5f0f\uff08Routing\uff09<\/strong>\uff1a\u76f4\u8fde\u4ea4\u6362\u673a\uff08Direct\uff09\uff0c\u6309\u8def\u7531\u952e\uff08Routing Key\uff09\u7cbe\u786e\u5339\u914d\u961f\u5217\u3002<\/li>\n\n\n\n
  5. \u4e3b\u9898\u6a21\u5f0f\uff08Topics\uff09<\/strong>\uff1a\u4e3b\u9898\u4ea4\u6362\u673a\uff08Topic\uff09\uff0c\u652f\u6301\u901a\u914d\u7b26\uff08*<\/code>\u3001#<\/code>\uff09\u6a21\u7cca\u5339\u914d\u3002<\/li>\n\n\n\n
  6. RPC \u6a21\u5f0f<\/strong>\uff1a\u901a\u8fc7\u56de\u8c03\u961f\u5217\u5b9e\u73b0\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\u3002<\/li>\n<\/ol>\n\n\n\n

    \u5173\u952e\u70b9<\/strong>\uff1a\u4ea4\u6362\u673a\u7c7b\u578b\u51b3\u5b9a\u6d88\u606f\u8def\u7531\u89c4\u5219\uff0c\u961f\u5217\u7ed1\u5b9a\u51b3\u5b9a\u6d88\u606f\u63a5\u6536\u65b9\u3002<\/p>\n\n\n\n

    2. \u7b80\u8ff0 GC\uff08\u5783\u573e\u56de\u6536\uff09\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5e38\u89c1\u7b97\u6cd5<\/strong><\/h3>\n\n\n\n

    \u53c2\u8003\u7b54\u6848<\/strong>\uff1a
    GC \u7684\u6838\u5fc3\u76ee\u6807\u662f\u81ea\u52a8\u56de\u6536\u4e0d\u518d\u4f7f\u7528\u7684\u5185\u5b58\uff0c\u4e3b\u8981\u57fa\u4e8e \u201c\u53ef\u8fbe\u6027\u5206\u6790\u201d \u7b97\u6cd5\uff1a<\/p>\n\n\n\n

      \n
    1. \u6807\u8bb0\u9636\u6bb5<\/strong>\uff1a\u4ece\u6839\u5bf9\u8c61\uff08\u9759\u6001\u53d8\u91cf\u3001\u6808\u53d8\u91cf\u7b49\uff09\u51fa\u53d1\uff0c\u6807\u8bb0\u6240\u6709\u53ef\u8fbe\u5bf9\u8c61\u3002<\/li>\n\n\n\n
    2. \u6e05\u9664\u9636\u6bb5<\/strong>\uff1a\u56de\u6536\u672a\u88ab\u6807\u8bb0\u7684\u5bf9\u8c61\u3002<\/li>\n<\/ol>\n\n\n\n

      \u5e38\u89c1\u7b97\u6cd5<\/strong>\uff1a<\/p>\n\n\n\n

        \n
      • \u6807\u8bb0 – \u6e05\u9664\uff08Mark-Sweep\uff09<\/strong>\uff1a\u57fa\u7840\u7b97\u6cd5\uff0c\u6613\u4ea7\u751f\u5185\u5b58\u788e\u7247\u3002<\/li>\n\n\n\n
      • \u6807\u8bb0 – \u6574\u7406\uff08Mark-Compact\uff09<\/strong>\uff1a\u6e05\u9664\u540e\u6574\u7406\u5185\u5b58\uff0c\u51cf\u5c11\u788e\u7247\u3002<\/li>\n\n\n\n
      • \u590d\u5236\u7b97\u6cd5\uff08Copying\uff09<\/strong>\uff1a\u5c06\u5185\u5b58\u5206\u4e3a\u4e24\u5757\uff0c\u5b58\u6d3b\u5bf9\u8c61\u590d\u5236\u5230\u53e6\u4e00\u5757\uff0c\u9ad8\u6548\u4f46\u6d6a\u8d39\u7a7a\u95f4\u3002<\/li>\n\n\n\n
      • \u5206\u4ee3\u6536\u96c6\uff08Generational\uff09<\/strong>\uff1a\u6309\u5bf9\u8c61\u751f\u547d\u5468\u671f\u5206\u4ee3\uff08\u65b0\u751f\u4ee3\u3001\u8001\u5e74\u4ee3\uff09\uff0c\u4e0d\u540c\u4ee3\u91c7\u7528\u4e0d\u540c\u7b97\u6cd5\u3002<\/li>\n<\/ul>\n\n\n\n

        JVM \u53c2\u6570\u8c03\u4f18<\/strong>\uff1a<\/p>\n\n\n\n

          \n
        • -Xms\/-Xmx<\/code>\uff1a\u5806\u521d\u59cb \/ \u6700\u5927\u5927\u5c0f<\/li>\n\n\n\n
        • -XX:+UseG1GC<\/code>\uff1a\u4f7f\u7528 G1 \u5783\u573e\u56de\u6536\u5668<\/li>\n<\/ul>\n\n\n\n

          3. Docker \u57fa\u7840\u547d\u4ee4\u53ca\u5bb9\u5668\u5316\u90e8\u7f72\u6d41\u7a0b<\/strong><\/h3>\n\n\n\n

          \u53c2\u8003\u7b54\u6848<\/strong>\uff1a
          \u57fa\u7840\u547d\u4ee4<\/strong>\uff1a<\/p>\n\n\n\n

          bash<\/p>\n\n\n\n

          # \u955c\u50cf\u64cd\u4f5c\ndocker pull [\u955c\u50cf\u540d]       # \u62c9\u53d6\u955c\u50cf\ndocker images             # \u67e5\u770b\u672c\u5730\u955c\u50cf\ndocker build -t [\u6807\u7b7e] .   # \u6784\u5efa\u955c\u50cf\n\n# \u5bb9\u5668\u64cd\u4f5c\ndocker run -d -p 80:80 --name [\u5bb9\u5668\u540d] [\u955c\u50cf\u540d]  # \u8fd0\u884c\u5bb9\u5668\ndocker ps                 # \u67e5\u770b\u8fd0\u884c\u4e2d\u5bb9\u5668\ndocker logs [\u5bb9\u5668ID]      # \u67e5\u770b\u65e5\u5fd7\ndocker exec -it [\u5bb9\u5668ID] bash  # \u8fdb\u5165\u5bb9\u5668\ndocker stop\/rm [\u5bb9\u5668ID]   # \u505c\u6b62\/\u5220\u9664\u5bb9\u5668\n<\/code><\/pre>\n\n\n\n
          \u90e8\u7f72\u6d41\u7a0b<\/strong>\uff1a<\/p>\n\n\n\n
            \n
          1. \u7f16\u5199\u00a0Dockerfile<\/code>\u00a0\u5b9a\u4e49\u5e94\u7528\u73af\u5883\u3002<\/li>\n\n\n\n
          2. \u6784\u5efa\u955c\u50cf\uff1adocker build -t myapp:1.0 .<\/code><\/li>\n\n\n\n
          3. \u8fd0\u884c\u5bb9\u5668\uff1adocker run -d -p 8080:8080 myapp:1.0<\/code><\/li>\n\n\n\n
          4. \u6301\u4e45\u5316\u6570\u636e\uff08\u53ef\u9009\uff09\uff1a\u6302\u8f7d\u5377\u00a0-v \/host\/path:\/container\/path<\/code>\u3002<\/li>\n<\/ol>\n\n\n\n
            4. \u7b80\u8ff0 MySQL \u4e8b\u52a1\u7279\u6027\u53ca\u9694\u79bb\u7ea7\u522b<\/strong><\/h3>\n\n\n\n
            \u53c2\u8003\u7b54\u6848<\/strong>\uff1a
            ACID \u7279\u6027<\/strong>\uff1a<\/p>\n\n\n\n
              \n
            • \u539f\u5b50\u6027\uff08Atomicity\uff09<\/strong>\uff1a\u4e8b\u52a1\u4e2d\u7684\u64cd\u4f5c\u8981\u4e48\u5168\u6267\u884c\uff0c\u8981\u4e48\u5168\u56de\u6eda\u3002<\/li>\n\n\n\n
            • \u4e00\u81f4\u6027\uff08Consistency\uff09<\/strong>\uff1a\u4e8b\u52a1\u6267\u884c\u524d\u540e\u6570\u636e\u4fdd\u6301\u4e00\u81f4\u72b6\u6001\u3002<\/li>\n\n\n\n
            • \u9694\u79bb\u6027\uff08Isolation\uff09<\/strong>\uff1a\u591a\u4e2a\u4e8b\u52a1\u76f8\u4e92\u9694\u79bb\uff0c\u907f\u514d\u5e72\u6270\u3002<\/li>\n\n\n\n
            • \u6301\u4e45\u6027\uff08Durability\uff09<\/strong>\uff1a\u4e8b\u52a1\u63d0\u4ea4\u540e\u7ed3\u679c\u6c38\u4e45\u4fdd\u5b58\u3002<\/li>\n<\/ul>\n\n\n\n
              \u9694\u79bb\u7ea7\u522b<\/strong>\uff1a<\/p>\n\n\n\n
              \u9694\u79bb\u7ea7\u522b<\/th>\u810f\u8bfb<\/th>\u4e0d\u53ef\u91cd\u590d\u8bfb<\/th>\u5e7b\u8bfb<\/th><\/tr><\/thead>
              READ UNCOMMITTED<\/td>\u5141\u8bb8<\/td>\u5141\u8bb8<\/td>\u5141\u8bb8<\/td><\/tr>
              READ COMMITTED<\/td>\u7981\u6b62<\/td>\u5141\u8bb8<\/td>\u5141\u8bb8<\/td><\/tr>
              REPEATABLE READ<\/td>\u7981\u6b62<\/td>\u7981\u6b62<\/td>\u5141\u8bb8<\/td><\/tr>
              SERIALIZABLE<\/td>\u7981\u6b62<\/td>\u7981\u6b62<\/td>\u7981\u6b62<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
              MySQL \u9ed8\u8ba4<\/strong>\uff1aREPEATABLE READ\uff08\u901a\u8fc7 MVCC \u89e3\u51b3\u5e7b\u8bfb\uff09\u3002<\/p>\n\n\n\n
              5. \u5982\u4f55\u4f18\u5316 MySQL \u67e5\u8be2\u6027\u80fd\uff1f<\/strong><\/h3>\n\n\n\n
              \u53c2\u8003\u7b54\u6848<\/strong>\uff1a<\/p>\n\n\n\n
                \n
              1. \u7d22\u5f15\u4f18\u5316<\/strong>\uff1a\n
                  \n
                • \u4e3a\u9ad8\u9891\u67e5\u8be2\u5b57\u6bb5\u521b\u5efa\u7d22\u5f15\uff08\u907f\u514d\u5168\u8868\u626b\u63cf\uff09\u3002<\/li>\n\n\n\n
                • \u4f7f\u7528\u590d\u5408\u7d22\u5f15\u65f6\u9075\u5faa \u201c\u6700\u5de6\u524d\u7f00\u539f\u5219\u201d\u3002<\/li>\n\n\n\n
                • \u907f\u514d\u7d22\u5f15\u5931\u6548\uff08\u5982\u51fd\u6570\u64cd\u4f5c\u3001\u6a21\u7cca\u67e5\u8be2\u524d\u7f6e\u901a\u914d\u7b26\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                • \u67e5\u8be2\u4f18\u5316<\/strong>\uff1a\n
                    \n
                  • \u907f\u514d\u00a0SELECT *<\/code>\uff0c\u4ec5\u67e5\u8be2\u9700\u8981\u7684\u5b57\u6bb5\u3002<\/li>\n\n\n\n
                  • \u4f7f\u7528\u00a0EXPLAIN<\/code>\u00a0\u5206\u6790\u67e5\u8be2\u6267\u884c\u8ba1\u5212\u3002<\/li>\n\n\n\n
                  • \u51cf\u5c11\u5b50\u67e5\u8be2\uff0c\u4f18\u5148\u4f7f\u7528\u8fde\u63a5\uff08JOIN\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                  • \u67b6\u6784\u4f18\u5316<\/strong>\uff1a\n
                      \n
                    • \u5206\u5e93\u5206\u8868\uff08\u5782\u76f4\u62c6\u5206\u5b57\u6bb5\u3001\u6c34\u5e73\u5206\u8868\uff09\u3002<\/li>\n\n\n\n
                    • \u8bfb\u5199\u5206\u79bb\uff08\u4e3b\u5e93\u5199\u3001\u4ece\u5e93\u8bfb\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                    • \u914d\u7f6e\u4f18\u5316<\/strong>\uff1a\n
                        \n
                      • \u8c03\u6574\u00a0innodb_buffer_pool_size<\/code>\uff08\u5efa\u8bae\u7269\u7406\u5185\u5b58\u7684 70-80%\uff09\u3002<\/li>\n\n\n\n
                      • \u5b9a\u671f\u6267\u884c\u00a0OPTIMIZE TABLE<\/code>\u00a0\u6574\u7406\u788e\u7247\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
                        6. Spring Bean \u7684\u751f\u547d\u5468\u671f<\/strong><\/h3>\n\n\n\n
                        \u53c2\u8003\u7b54\u6848<\/strong>\uff1a<\/p>\n\n\n\n
                          \n
                        1. \u5b9e\u4f8b\u5316<\/strong>\uff1a\u901a\u8fc7\u6784\u9020\u5668\u6216\u5de5\u5382\u65b9\u6cd5\u521b\u5efa Bean \u5bf9\u8c61\u3002<\/li>\n\n\n\n
                        2. \u5c5e\u6027\u6ce8\u5165<\/strong>\uff1a\u4f9d\u8d56\u6ce8\u5165\uff08\u5982 @Autowired\u3001Setter \u65b9\u6cd5\uff09\u3002<\/li>\n\n\n\n
                        3. \u521d\u59cb\u5316\u56de\u8c03<\/strong>\uff1a\n
                            \n
                          • \u5b9e\u73b0\u00a0InitializingBean<\/code>\u00a0\u7684\u00a0afterPropertiesSet()<\/code>\u00a0\u65b9\u6cd5\u3002<\/li>\n\n\n\n
                          • \u4f7f\u7528\u00a0@PostConstruct<\/code>\u00a0\u6ce8\u89e3\u3002<\/li>\n\n\n\n
                          • \u81ea\u5b9a\u4e49\u00a0init-method<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                          • BeanPostProcessor \u5904\u7406<\/strong>\uff1a\u521d\u59cb\u5316\u524d\u540e\u7684\u589e\u5f3a\u5904\u7406\uff08\u5982 AOP \u4ee3\u7406\uff09\u3002<\/li>\n\n\n\n
                          • \u4f7f\u7528<\/strong>\uff1aBean \u5c31\u7eea\uff0c\u53ef\u88ab\u5e94\u7528\u7a0b\u5e8f\u8c03\u7528\u3002<\/li>\n\n\n\n
                          • \u9500\u6bc1\u56de\u8c03<\/strong>\uff1a\n
                              \n
                            • \u5b9e\u73b0\u00a0DisposableBean<\/code>\u00a0\u7684\u00a0destroy()<\/code>\u00a0\u65b9\u6cd5\u3002<\/li>\n\n\n\n
                            • \u4f7f\u7528\u00a0@PreDestroy<\/code>\u00a0\u6ce8\u89e3\u3002<\/li>\n\n\n\n
                            • \u81ea\u5b9a\u4e49\u00a0destroy-method<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
                              7. \u7b80\u8ff0 Java \u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u7ebf\u7a0b\u6c60<\/strong><\/h3>\n\n\n\n
                              \u53c2\u8003\u7b54\u6848<\/strong>\uff1a
                              \u7ebf\u7a0b\u6c60\u4f18\u52bf<\/strong>\uff1a<\/p>\n\n\n\n
                                \n
                              • \u964d\u4f4e\u7ebf\u7a0b\u521b\u5efa \/ \u9500\u6bc1\u5f00\u9500\uff0c\u63d0\u9ad8\u54cd\u5e94\u901f\u5ea6\u3002<\/li>\n\n\n\n
                              • \u63a7\u5236\u6700\u5927\u5e76\u53d1\u7ebf\u7a0b\u6570\uff0c\u907f\u514d\u8d44\u6e90\u8017\u5c3d\u3002<\/li>\n\n\n\n
                              • \u63d0\u4f9b\u4efb\u52a1\u7ba1\u7406\u673a\u5236\uff08\u5982\u5b9a\u65f6\u4efb\u52a1\u3001\u62d2\u7edd\u7b56\u7565\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
                                \u6838\u5fc3\u53c2\u6570<\/strong>\uff1a<\/p>\n\n\n\n
                                java<\/p>\n\n\n\n
                                ThreadPoolExecutor(\n    int corePoolSize,         \/\/ \u6838\u5fc3\u7ebf\u7a0b\u6570\n    int maximumPoolSize,      \/\/ \u6700\u5927\u7ebf\u7a0b\u6570\n    long keepAliveTime,       \/\/ \u7a7a\u95f2\u7ebf\u7a0b\u5b58\u6d3b\u65f6\u95f4\n    TimeUnit unit,            \/\/ \u65f6\u95f4\u5355\u4f4d\n    BlockingQueue<Runnable> workQueue,  \/\/ \u4efb\u52a1\u961f\u5217\n    ThreadFactory threadFactory,        \/\/ \u7ebf\u7a0b\u5de5\u5382\n    RejectedExecutionHandler handler    \/\/ \u62d2\u7edd\u7b56\u7565\n);\n<\/code><\/pre>\n\n\n\n
                                \u5e38\u89c1\u62d2\u7edd\u7b56\u7565<\/strong>\uff1a<\/p>\n\n\n\n
                                  \n
                                • AbortPolicy<\/code>\uff08\u9ed8\u8ba4\uff09\uff1a\u629b\u51fa\u5f02\u5e38\u3002<\/li>\n\n\n\n
                                • CallerRunsPolicy<\/code>\uff1a\u8c03\u7528\u8005\u7ebf\u7a0b\u6267\u884c\u4efb\u52a1\u3002<\/li>\n\n\n\n
                                • DiscardPolicy<\/code>\uff1a\u76f4\u63a5\u4e22\u5f03\u4efb\u52a1\u3002<\/li>\n\n\n\n
                                • DiscardOldestPolicy<\/code>\uff1a\u4e22\u5f03\u961f\u5217\u4e2d\u6700\u8001\u7684\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n
                                  8. synchronized \u4e0e ReentrantLock \u7684\u533a\u522b<\/strong><\/h3>\n\n\n\n
                                  \u53c2\u8003\u7b54\u6848<\/strong>\uff1a<\/p>\n\n\n\n
                                  \u7279\u6027<\/th>synchronized<\/th>ReentrantLock<\/th><\/tr><\/thead>
                                  \u9501\u5b9e\u73b0\u65b9\u5f0f<\/td>JVM \u5c42\u9762\uff08\u5185\u7f6e\u9501\uff09<\/td>API \u5c42\u9762\uff08java.util.concurrent\uff09<\/td><\/tr>
                                  \u9501\u83b7\u53d6\u65b9\u5f0f<\/td>\u9690\u5f0f\uff08\u81ea\u52a8\u91ca\u653e\uff09<\/td>\u663e\u5f0f\uff08\u9700\u624b\u52a8\u8c03\u7528 unlock\uff09<\/td><\/tr>
                                  \u53ef\u4e2d\u65ad\u6027<\/td>\u4e0d\u53ef\u4e2d\u65ad<\/td>\u53ef\u4e2d\u65ad\uff08lockInterruptibly\uff09<\/td><\/tr>
                                  \u516c\u5e73\u6027<\/td>\u975e\u516c\u5e73<\/td>\u53ef\u8bbe\u7f6e\u516c\u5e73 \/ \u975e\u516c\u5e73<\/td><\/tr>
                                  \u6761\u4ef6\u53d8\u91cf<\/td>\u5355\u4e00 wait\/notify \u673a\u5236<\/td>\u591a\u4e2a Condition \u5bf9\u8c61<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                                  \u9009\u62e9\u5efa\u8bae<\/strong>\uff1a<\/p>\n\n\n\n
                                    \n
                                  • \u7b80\u5355\u573a\u666f\u4f18\u5148\u4f7f\u7528\u00a0synchronized<\/code>\uff08\u8bed\u6cd5\u7b80\u6d01\uff09\u3002<\/li>\n\n\n\n
                                  • \u9700\u8981\u9ad8\u7ea7\u7279\u6027\uff08\u5982\u53ef\u4e2d\u65ad\u9501\u3001\u516c\u5e73\u9501\uff09\u65f6\u4f7f\u7528\u00a0ReentrantLock<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n
                                    9. \u7b80\u8ff0 Java NIO \u4e0e\u4f20\u7edf IO \u7684\u533a\u522b<\/strong><\/h3>\n\n\n\n
                                    \u53c2\u8003\u7b54\u6848<\/strong>\uff1a<\/p>\n\n\n\n
                                    \u7279\u6027<\/th>\u4f20\u7edf IO\uff08BIO\uff09<\/th>NIO\uff08New IO\uff09<\/th><\/tr><\/thead>
                                    \u963b\u585e\u6a21\u5f0f<\/td>\u963b\u585e\uff08\u7ebf\u7a0b\u7b49\u5f85 IO \u5b8c\u6210\uff09<\/td>\u975e\u963b\u585e\uff08\u7ebf\u7a0b\u53ef\u7ee7\u7eed\u5904\u7406\u5176\u4ed6\u4efb\u52a1\uff09<\/td><\/tr>
                                    \u6838\u5fc3\u7ec4\u4ef6<\/td>InputStream\/OutputStream<\/td>Channel\u3001Buffer\u3001Selector<\/td><\/tr>
                                    \u6570\u636e\u5904\u7406<\/td>\u5b57\u8282\u6d41 \/ \u5b57\u7b26\u6d41<\/td>\u7f13\u51b2\u533a\uff08Buffer\uff09<\/td><\/tr>
                                    \u9002\u7528\u573a\u666f<\/td>\u8fde\u63a5\u6570\u5c11\u4e14\u56fa\u5b9a\u7684\u573a\u666f<\/td>\u9ad8\u5e76\u53d1\u3001\u8fde\u63a5\u6570\u591a\u7684\u573a\u666f\uff08\u5982 Web \u670d\u52a1\u5668\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                                    \u793a\u4f8b<\/strong>\uff1a
                                    NIO \u901a\u8fc7 Selector<\/code> \u5b9e\u73b0\u5355\u7ebf\u7a0b\u7ba1\u7406\u591a\u4e2a Channel\uff0c\u907f\u514d\u4e86 BIO \u7684\u7ebf\u7a0b\u963b\u585e\u95ee\u9898\u3002<\/p>\n\n\n\n
                                    10. \u5982\u4f55\u6392\u67e5 Java \u5185\u5b58\u6cc4\u6f0f\u95ee\u9898\uff1f<\/strong><\/h3>\n\n\n\n
                                    \u53c2\u8003\u7b54\u6848<\/strong>\uff1a<\/p>\n\n\n\n
                                      \n
                                    1. \u76d1\u63a7\u5de5\u5177<\/strong>\uff1a\n
                                        \n
                                      • \u4f7f\u7528\u00a0jstat<\/code>\u00a0\u67e5\u770b GC \u9891\u7387\u548c\u5185\u5b58\u5360\u7528\u3002<\/li>\n\n\n\n
                                      • \u4f7f\u7528\u00a0jmap<\/code>\u00a0\u751f\u6210\u5806\u8f6c\u50a8\u6587\u4ef6\uff08Heap Dump\uff09\u3002<\/li>\n\n\n\n
                                      • \u4f7f\u7528\u5de5\u5177\uff08\u5982 MAT\u3001VisualVM\uff09\u5206\u6790 Dump \u6587\u4ef6\uff0c\u627e\u51fa\u5927\u5bf9\u8c61\u548c\u5f15\u7528\u94fe\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                                      • \u5e38\u89c1\u539f\u56e0<\/strong>\uff1a\n
                                          \n
                                        • \u9759\u6001\u96c6\u5408\u6301\u6709\u5bf9\u8c61\u5f15\u7528\uff08\u5982 HashMap \u672a\u6e05\u7406\uff09\u3002<\/li>\n\n\n\n
                                        • \u672a\u5173\u95ed\u7684\u8d44\u6e90\uff08\u5982 IO \u6d41\u3001\u6570\u636e\u5e93\u8fde\u63a5\uff09\u3002<\/li>\n\n\n\n
                                        • \u5185\u90e8\u7c7b\u6301\u6709\u5916\u90e8\u7c7b\u5f15\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                                        • \u9884\u9632\u63aa\u65bd<\/strong>\uff1a\n
                                            \n
                                          • \u4f7f\u7528\u5f31\u5f15\u7528\uff08WeakReference\uff09\u5b58\u50a8\u7f13\u5b58\u6570\u636e\u3002<\/li>\n\n\n\n
                                          • \u5728\u00a0finally<\/code>\u00a0\u5757\u4e2d\u91ca\u653e\u8d44\u6e90\u3002<\/li>\n\n\n\n
                                          • \u907f\u514d\u9759\u6001\u96c6\u5408\u5b58\u50a8\u5927\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
                                            \u56de\u7b54\u6280\u5de7\u603b\u7ed3<\/strong>\uff1a<\/h3>\n\n\n\n
                                              \n
                                            1. \u7ed3\u6784\u5316\u56de\u7b54<\/strong>\uff1a\u6309 \u201c\u6982\u5ff5\u89e3\u91ca\u2192\u6838\u5fc3\u7279\u6027\u2192\u5e94\u7528\u573a\u666f\u2192\u793a\u4f8b \/ \u5bf9\u6bd4\u201d \u7684\u903b\u8f91\u5c55\u5f00\u3002<\/li>\n\n\n\n
                                            2. \u7ed3\u5408\u6e90\u7801\u6216\u5e95\u5c42\u539f\u7406<\/strong>\uff1a\u5982\u63d0\u5230synchronized<\/code>\u65f6\uff0c\u53ef\u7b80\u5355\u8bf4\u660e\u5176\u5728 JVM \u4e2d\u7684\u5b9e\u73b0\uff08\u504f\u5411\u9501\u3001\u8f7b\u91cf\u7ea7\u9501\u3001\u91cd\u91cf\u7ea7\u9501\uff09\u3002<\/li>\n\n\n\n
                                            3. \u6848\u4f8b\u5316<\/strong>\uff1a\u7528\u5b9e\u9645\u9879\u76ee\u7ecf\u9a8c\u4e3e\u4f8b\uff08 \u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u8c03\u6574\u7ebf\u7a0b\u6c60\u53c2\u6570\u89e3\u51b3\u4e86 OOM \u95ee\u9898\u201d\uff09\u3002<\/li>\n\n\n\n
                                            4. \u907f\u514d\u7a7a\u6d1e<\/strong>\uff1a\u56de\u7b54\u7b97\u6cd5\u6216\u673a\u5236\u65f6\uff0c\u7528\u6d41\u7a0b\u56fe\u6216\u6b65\u9aa4\u63cf\u8ff0\u8f85\u52a9\u7406\u89e3\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
                                              \u53c2\u8003\u7b54\u6848\uff1aRabbitMQ \u63d0\u4f9b\u591a\u79cd\u5de5\u4f5c\u6a21\u5f0f\uff0c\u6838\u5fc3\u533a\u522b\u5728\u4e8e\u4ea4\u6362\u673a\uff08Exchange\uff09\u7684\u7c7b\u578b\u548c\u6d88\u606f\u8def\u7531\u673a\u5236\uff1a \u5173 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1995","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/1995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/comments?post=1995"}],"version-history":[{"count":1,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/1995\/revisions"}],"predecessor-version":[{"id":1996,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/posts\/1995\/revisions\/1996"}],"wp:attachment":[{"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/media?parent=1995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/categories?post=1995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/note.ui11.cc\/index.php\/wp-json\/wp\/v2\/tags?post=1995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}