{"id":17104,"date":"2025-04-06T08:43:08","date_gmt":"2025-04-06T00:43:08","guid":{"rendered":"https:\/\/92it.top\/?p=17104"},"modified":"2025-04-06T08:43:08","modified_gmt":"2025-04-06T00:43:08","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e8%af%b4%e7%bc%93%e5%ad%98%e6%98%af%e6%8a%8a%e5%8f%8c%e5%88%83%e5%89%91%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=17104","title":{"rendered":"\u4e3a\u4ec0\u4e48\u8bf4\u7f13\u5b58\u662f\u628a\u53cc\u5203\u5251\uff1f"},"content":{"rendered":"\n

\u8f6c\u8f7d\uff1a\u4e3a\u4ec0\u4e48\u8bf4\u7f13\u5b58\u662f\u628a\u53cc\u5203\u5251\uff1f<\/a><\/p>\n\n\n\n

\u4eca\u5929\u6211\u4eec\u6765\u804a\u4e00\u4e2a\u5728\u5f00\u53d1\u4e2d\u65e2\u5b9e\u7528\u53c8\u8ba9\u4eba\u5934\u75bc\u7684\u8bdd\u9898\u2014\u2014\u7f13\u5b58\uff08Caching\uff09<\/code>\u3002\u4ec0\u4e48\u662f\u7f13\u5b58\uff1f\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u7f13\u5b58\uff1f\u4e3a\u4ec0\u4e48\u8bf4\u7f13\u5b58\u662f\u628a\u53cc\u5203\u5251\uff1f\u8fd9\u7bc7\u6587\u7ae0\uff0c\u6211\u4eec\u5c06\u4e00\u4e00\u89e3\u7b54\u3002<\/p>\n\n\n\n

1. \u4ec0\u4e48\u662f\u7f13\u5b58\uff1f<\/strong><\/p>\n\n\n\n

\n\n\n\n

\u7b80\u5355\u6765\u8bf4\uff0c\u7f13\u5b58<\/strong>\u5c31\u662f\u7528\u6765\u5b58\u50a8\u6570\u636e\u7684\u4e34\u65f6\u5b58\u50a8\u533a\u57df\u3002\u60f3\u8c61\u4e00\u4e0b\uff0c\u4f60\u53bb\u8d85\u5e02\u4e70\u4e1c\u897f\uff0c\u7b2c\u4e00\u6b21\u53bb\u7684\u65f6\u5019\u9700\u8981\u62ff\u51fa\u624b\u673a\u67e5\u4ef7\u683c\uff0c\u7b2c\u4e8c\u6b21\u518d\u6765\u4e70\u540c\u6837\u7684\u4e1c\u897f\uff0c\u4f60\u53ef\u80fd\u5c31\u4f1a\u76f4\u63a5\u8bb0\u4f4f\u4ef7\u683c\uff0c\u8fd9\u6837\u5c31\u8282\u7701\u4e86\u67e5\u627e\u7684\u65f6\u95f4\u3002\u7f13\u5b58\u7684\u4f5c\u7528\u7c7b\u4f3c\uff0c\u5b58\u50a8\u90a3\u4e9b\u9891\u7e41\u8bbf\u95ee\u7684\u6570\u636e\uff0c\u4ee5\u51cf\u5c11\u91cd\u590d\u8ba1\u7b97\u6216\u6570\u636e\u83b7\u53d6\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n

2. \u4e3a\u4ec0\u4e48\u8981\u7528\u7f13\u5b58\uff1f<\/strong><\/p>\n\n\n\n

\n\n\n\n

\u5728\u5b9e\u9645\u5de5\u4f5c\u4e2d\uff0c\u4f7f\u7528\u7f13\u5b58\u7684\u4e3b\u8981\u76ee\u7684\u6709\u4ee5\u4e0b 4\u70b9\uff1a<\/p>\n\n\n\n

    \n
  1. \u63d0\u9ad8\u6027\u80fd<\/strong>\uff1a\u56e0\u4e3a\u7f13\u5b58\u6570\u636e\u7684\u8f7d\u4f53\u90fd\u662f\u4e00\u4e9b\u5feb\u901f\u8bbf\u95ee\u7684\u5b58\u50a8\u4ecb\u8d28\uff0c\u5b83\u80fd\u51cf\u5c11\u6570\u636e\u8bbf\u95ee\u65f6\u95f4\uff0c\u52a0\u5feb\u5e94\u7528\u54cd\u5e94\u901f\u5ea6\u3002<\/li>\n\n\n\n
  2. \u51cf\u8f7b\u8d1f\u8f7d<\/strong>\uff1a\u5982\u679c\u80fd\u547d\u4e2d\u7f13\u5b58\uff0c\u81ea\u7136\u5c31\u964d\u4f4e\u4e86\u6570\u636e\u5e93\u6216\u5176\u4ed6\u540e\u7aef\u670d\u52a1\u7684\u538b\u529b\u3002<\/li>\n\n\n\n
  3. \u63d0\u5347\u7528\u6237\u4f53\u9a8c<\/strong>\uff1a\u7f13\u5b58\u53ef\u4ee5\u52a0\u901fRT\uff0c\u5feb\u901f\u54cd\u5e94\u8ba9\u7528\u6237\u611f\u89c9\u5e94\u7528\u66f4\u52a0\u6d41\u7545\u3002<\/li>\n\n\n\n
  4. \u5b66\u4e60<\/strong>\uff1a\u6280\u672f\u5b66\u4e60\u4e2d\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u7814\u7a76\u7684\u5b66\u4e60\u70b9\u3002<\/li>\n<\/ol>\n\n\n\n

    3. \u7f13\u5b58\u7684\u57fa\u672c\u539f\u7406<\/strong><\/p>\n\n\n\n

    \n\n\n\n

    \u7f13\u5b58\u7684\u6838\u5fc3\u5728\u4e8e\u65f6\u95f4\u6362\u7a7a\u95f4<\/code>\u3002\u6211\u4eec\u628a\u4e00\u4e9b\u7ecf\u5e38\u7528\u5230\u7684\u6570\u636e\u63d0\u524d\u5b58\u50a8\u5728\u901f\u5ea6\u66f4\u5feb\u7684\u5b58\u50a8\u4ecb\u8d28\u4e2d\uff08\u5982\u5185\u5b58\uff09\uff0c\u907f\u514d\u6bcf\u6b21\u90fd\u53bb\u6162\u901f\u7684\u5b58\u50a8\uff08\u5982\u6570\u636e\u5e93\uff09\u83b7\u53d6\uff0c\u4ece\u800c\u63d0\u5347\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n

    \u7f13\u5b58\u7684\u5e38\u89c1\u7c7b\u578b\u6709\u4e24\u79cd\uff1a\u672c\u5730\u7f13\u5b58\u548c\u5206\u5e03\u5f0f\u7f13\u5b58\u3002<\/p>\n\n\n\n

    1. \u672c\u5730\u7f13\u5b58<\/strong><\/p>\n\n\n\n

    \u672c\u5730\u7f13\u5b58\uff08Local Cache\uff09\u662f\u6307\u5b58\u50a8\u5728\u5e94\u7528\u672c\u5730\u7684\u5185\u5b58\u4e2d\uff0c\u8bbf\u95ee\u901f\u5ea6\u6700\u5feb\uff0c\u4f46\u4e0d\u9002\u5408\u5206\u5e03\u5f0f\u73af\u5883\u3002Java\u4e2d\u5e38\u7528\u7684\u7f13\u5b58\u6846\u67b6\u6709\uff1a<\/p>\n\n\n\n

      \n
    1. Ehcache<\/strong>\uff1a\u529f\u80fd\u5f3a\u5927\uff0c\u6613\u4e8e\u6574\u5408\uff0c\u9002\u5408\u4e2d\u5c0f\u578b\u9879\u76ee\u3002<\/li>\n\n\n\n
    2. Caffeine<\/strong>\uff1a\u57fa\u4e8eJava 8\u7684\u9ad8\u6027\u80fd\u7f13\u5b58\u5e93\uff0c\u9002\u5408\u5bf9\u6027\u80fd\u8981\u6c42\u9ad8\u7684\u573a\u666f\u3002<\/li>\n\n\n\n
    3. Guava<\/strong>\uff1aGuava\u662fGoogle\u5f00\u6e90\u7684\u4e00\u6b3e\u7f13\u5b58\u6846\u67b6\u3002<\/li>\n<\/ol>\n\n\n\n

      2. \u5206\u5e03\u5f0f\u7f13\u5b58<\/strong><\/p>\n\n\n\n

      \u5206\u5e03\u5f0f\u7f13\u5b58\uff08Distributed Cache\uff09\u662f\u6307\u591a\u4e2a\u5e94\u7528\u5b9e\u4f8b\u5171\u4eab\u7684\u7f13\u5b58\uff0c\u5e38\u7528\u7684\u6709Redis\u3001Memcached\u7b49\uff0c\u9002\u5408\u6269\u5c55\u6027\u5f3a\u7684\u7cfb\u7edf\u3002<\/p>\n\n\n\n

      4. \u5b9e\u6218\u6f14\u7ec3<\/strong><\/p>\n\n\n\n

      \n\n\n\n

      \u6211\u4eec\u5728 Java\u4e2d\u4f7f\u7528 Caffeine\u6765\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u7f13\u5b58\u4f8b\u5b50\u3002<\/p>\n\n\n\n

      4.1 \u6b65\u9aa4\u4e00\uff1a\u5f15\u5165Caffeine\u4f9d\u8d56<\/strong><\/p>\n\n\n\n

      \u5982\u679c\u4f60\u4f7f\u7528\u7684\u662fMaven\uff0c\u53ef\u4ee5\u5728pom.xml<\/code>\u4e2d\u52a0\u5165\u4ee5\u4e0b\u4f9d\u8d56\uff1a<\/p>\n\n\n\n

      <dependency>\n    <groupId>com.github.ben-manes.caffeine<\/groupId>\n    <artifactId>caffeine<\/artifactId>\n    <version>3.1.6<\/version>\n<\/dependency>\n<\/pre>\n\n\n\n
      4.2 \u6b65\u9aa4\u4e8c\uff1a\u521b\u5efa\u7f13\u5b58\u5b9e\u4f8b<\/strong><\/p>\n\n\n\n
      import com.github.benmanes.caffeine.cache.Cache;\nimport com.github.benmanes.caffeine.cache.Caffeine;\n\nimport java.util.concurrent.TimeUnit;\n\npublicclass CacheExample {\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u7f13\u5b58\uff0c\u8bbe\u7f6e\u6700\u5927\u5bb9\u91cf\u4e3a100\uff0c\u8fc7\u671f\u65f6\u95f4\u4e3a10\u79d2\n        Cache<String, String> cache = Caffeine.newBuilder()\n                .maximumSize(100)\n                .expireAfterWrite(10, TimeUnit.SECONDS)\n                .build();\n\n        \/\/ \u5b58\u5165\u6570\u636e\n        cache.put(\"key1\", \"value1\");\n\n        \/\/ \u83b7\u53d6\u6570\u636e\n        String value = cache.getIfPresent(\"key1\");\n        if (StringUtils.isEmpty(value)) {\n            value = getValueFromDatabase();\n            System.out.println(\"Retrieved Value from DB: \" + value);\n        }else {\n            System.out.println(\"Retrieved Value from cache: \" + value);\n        }\n    }\n}\n<\/pre>\n\n\n\n
      4.3 \u6b65\u9aa4\u4e09\uff1a\u8fd0\u884c\u5e76\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n
      \u8fd0\u884c\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u4f60\u4f1a\u770b\u5230\u8f93\u51fa\uff1a<\/p>\n\n\n\n
      Retrieved Value from cache: value1\n<\/pre>\n\n\n\n
      10s\u4e4b\u540e\u518d\u6b21\u8fd0\u884c\u4ee3\u7801\uff0c\u4f60\u4f1a\u770b\u5230\u8f93\u51fa\uff1a<\/p>\n\n\n\n
      Retrieved Value from DB: value1\n<\/pre>\n\n\n\n
      \u901a\u8fc7\u4e0a\u9762\u7684\u6d4b\u8bd5\uff0c\u53ef\u4ee5\u5728\u7f13\u5b58\u548cDB\u4e2d\u8fdb\u884c\u6570\u636e\u7684\u4ea4\u4e92\uff0c\u5b9e\u73b0\u7f13\u5b58\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n
      5. \u7f13\u5b58\u5931\u6548\u7b56\u7565<\/strong><\/p>\n\n\n\n
      \n\n\n\n
      \u7f13\u5b58\u4e0d\u662f\u4e07\u80fd\u7684\uff0c\u5408\u7406\u7684\u5931\u6548\u7b56\u7565\u80fd\u5e2e\u52a9\u6211\u4eec\u4fdd\u6301\u6570\u636e\u7684\u6700\u65b0\u6027\u3002\u5e38\u89c1\u7684\u5931\u6548\u7b56\u7565\u6709\uff1a<\/p>\n\n\n\n
        \n
      1. \u57fa\u4e8e\u65f6\u95f4\u7684\u5931\u6548<\/strong>\uff1a\u5982\u4e0a\u4f8b\u4e2d\u7684expireAfterWrite<\/code>\uff0c\u5728\u5199\u5165\u540e\u4e00\u5b9a\u65f6\u95f4\u5185\u5931\u6548\u3002<\/li>\n\n\n\n
      2. \u57fa\u4e8e\u5927\u5c0f\u7684\u5931\u6548<\/strong>\uff1a\u5f53\u7f13\u5b58\u8d85\u8fc7\u6700\u5927\u5bb9\u91cf\u65f6\uff0c\u6309\u7167\u4e00\u5b9a\u89c4\u5219\uff08\u5982LRU\u2014\u2014\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u6dd8\u6c70\u6570\u636e\u3002<\/li>\n\n\n\n
      3. \u624b\u52a8\u5931\u6548<\/strong>\uff1a\u5f00\u53d1\u8005\u6839\u636e\u4e1a\u52a1\u903b\u8f91\u4e3b\u52a8\u79fb\u9664\u6216\u66f4\u65b0\u7f13\u5b58\u3002<\/li>\n<\/ol>\n\n\n\n
        6. \u7f13\u5b58\u51fb\u7a7f\u3001\u7a7f\u900f\u4e0e\u96ea\u5d29<\/strong><\/p>\n\n\n\n
        \n\n\n\n
        \u6709\u7f13\u5b58\u5b9e\u9645\u4f7f\u7528\u7ecf\u9a8c\u7684\u5c0f\u4f19\u4f34\u5e94\u8be5\u90fd\u77e5\u9053\uff0c\u7f13\u5b58\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u95ee\u9898\uff0c\u4e1a\u5185\u4e3b\u6d41\u7684\u4e09\u4e2a\u95ee\u9898\u662f\uff1a<\/p>\n\n\n\n
          \n
        1. \u7f13\u5b58\u51fb\u7a7f<\/strong>\uff1a\u5927\u91cf\u8bf7\u6c42\u540c\u65f6\u8bbf\u95ee\u4e00\u4e2a\u521a\u597d\u5931\u6548\u7684\u952e\uff0c\u5bfc\u81f4\u5927\u91cf\u8bf7\u6c42\u76f4\u63a5\u6253\u5230\u540e\u7aef\u3002<\/li>\n\n\n\n
        2. \u7f13\u5b58\u7a7f\u900f<\/strong>\uff1a\u8bf7\u6c42\u7684\u6570\u636e\u5728\u7f13\u5b58\u548c\u6570\u636e\u5e93\u4e2d\u90fd\u4e0d\u5b58\u5728\uff0c\u5bfc\u81f4\u6bcf\u6b21\u8bf7\u6c42\u90fd\u8981\u5230\u540e\u7aef\u67e5\u8be2\u3002<\/li>\n\n\n\n
        3. \u7f13\u5b58\u96ea\u5d29<\/strong>\uff1a\u7f13\u5b58\u5927\u91cf\u5931\u6548\uff0c\u5bfc\u81f4\u540e\u7aef\u627f\u53d7\u77ac\u95f4\u5927\u91cf\u8bf7\u6c42\u3002<\/li>\n<\/ol>\n\n\n\n
          \u7f13\u5b58\u7cfb\u7edf\u5728\u73b0\u4ee3\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\uff0c\u901a\u8fc7\u52a0\u901f\u6570\u636e\u8bbf\u95ee\u3001\u51cf\u8f7b\u6570\u636e\u5e93\u8d1f\u8f7d\u6765\u63d0\u5347\u7cfb\u7edf\u6027\u80fd\u3002\u7136\u800c\uff0c\u5728\u9ad8\u5e76\u53d1\u73af\u5883\u4e0b\uff0c\u7f13\u5b58\u4e5f\u53ef\u80fd\u9762\u4e34\u4e00\u4e9b\u5e38\u89c1\u95ee\u9898\uff0c\u5982\u00a0\u7f13\u5b58\u7a7f\u900f\uff08Cache Penetration\uff09<\/strong>\u3001\u7f13\u5b58\u51fb\u7a7f\uff08Cache Breakdown\uff09<\/strong>\u00a0\u548c\u00a0\u7f13\u5b58\u96ea\u5d29\uff08Cache Avalanche\uff09<\/strong>\u3002\u8fd9\u4e9b\u95ee\u9898\u5982\u679c\u5f97\u4e0d\u5230\u6709\u6548\u89e3\u51b3\uff0c\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u4e0b\u964d\u751a\u81f3\u5d29\u6e83\u3002\u4e0b\u9762\u5c06\u5bf9\u8fd9\u4e09\u79cd\u95ee\u9898\u8fdb\u884c\u66f4\u8be6\u7ec6\u7684\u89e3\u6790\uff0c\u5305\u62ec\u5b83\u4eec\u7684\u5b9a\u4e49\u3001\u539f\u56e0\u3001\u5f71\u54cd\u4ee5\u53ca\u76f8\u5e94\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n
          6.1 \u7f13\u5b58\u7a7f\u900f<\/strong><\/p>\n\n\n\n
          \u7f13\u5b58\u7a7f\u900f<\/strong> \uff08Cache Penetration\uff09\u6307\u7684\u662f\u8bf7\u6c42\u7ed5\u8fc7\u7f13\u5b58\uff0c\u76f4\u63a5\u67e5\u8be2\u6570\u636e\u5e93\u7684\u73b0\u8c61\u3002\u901a\u5e38\u53d1\u751f\u5728\u67e5\u8be2\u4e00\u4e2a\u6839\u672c\u4e0d\u5b58\u5728\u7684\u6570\u636e\u65f6\uff0c\u56e0\u4e3a\u7f13\u5b58\u4e2d\u6ca1\u6709\u5bf9\u5e94\u7684\u952e\uff0c\u5bfc\u81f4\u6240\u6709\u8bf7\u6c42\u90fd\u7a7f\u900f\u7f13\u5b58\uff0c\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n
          \u4ea7\u751f\u7f13\u5b58\u7a7f\u900f\u7684\u4e3b\u8981\u539f\u56e0\u6709\uff1a<\/p>\n\n\n\n
            \n
          • \u6076\u610f\u653b\u51fb<\/strong>\uff1a\u653b\u51fb\u8005\u5927\u91cf\u8bf7\u6c42\u4e0d\u5b58\u5728\u7684\u6570\u636e\uff0c\u4f01\u56fe\u7ed5\u8fc7\u7f13\u5b58\uff0c\u76f4\u63a5\u6253\u51fb\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
          • \u7a0b\u5e8f\u6f0f\u6d1e<\/strong>\uff1a\u5e94\u7528\u7a0b\u5e8f\u672a\u5bf9\u8f93\u5165\u53c2\u6570\u8fdb\u884c\u6709\u6548\u6821\u9a8c\uff0c\u5bfc\u81f4\u65e0\u6548\u8bf7\u6c42\u9891\u7e41\u6d8c\u5411\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
          • \u6570\u636e\u66f4\u65b0<\/strong>\uff1a\u5728\u7f13\u5b58\u66f4\u65b0\u6216\u5931\u6548\u671f\u95f4\uff0c\u77ed\u65f6\u95f4\u5185\u5927\u91cf\u8bf7\u6c42\u540c\u65f6\u67e5\u8be2\u5c1a\u672a\u7f13\u5b58\u7684\u65b0\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n
            \u7f13\u5b58\u7a7f\u900f\u7684\u5e38\u7528\u89e3\u51b3\u65b9\u6848\u6709\uff1a<\/p>\n\n\n\n
              \n
            • \u5e03\u9686\u8fc7\u6ee4\u5668\uff08Bloom Filter\uff09<\/strong>\uff1a \u4f7f\u7528\u5e03\u9686\u8fc7\u6ee4\u5668\u9884\u5148\u8fc7\u6ee4\u6389\u4e00\u5b9a\u89c4\u6a21\u7684\u4e0d\u5b58\u5728\u7684\u952e\uff0c\u51cf\u5c11\u65e0\u6548\u8bf7\u6c42\u3002<\/li>\n\n\n\n
            • \u7f13\u5b58\u7a7a\u5bf9\u8c61<\/strong>\uff1a \u5bf9\u4e8e\u67e5\u8be2\u7ed3\u679c\u4e3a\u7a7a\u7684\u6570\u636e\uff0c\u7f13\u5b58\u4e00\u4e2a\u7a7a\u5bf9\u8c61\u6216\u7279\u5b9a\u6807\u8bc6\uff0c\u5e76\u8bbe\u7f6e\u8f83\u77ed\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u9632\u6b62\u7f13\u5b58\u7a7f\u900f\u3002<\/li>\n\n\n\n
            • \u53c2\u6570\u6821\u9a8c<\/strong>\uff1a \u5bf9\u7528\u6237\u8f93\u5165\u7684\u53c2\u6570\u8fdb\u884c\u4e25\u683c\u6821\u9a8c\uff0c\u786e\u4fdd\u8bf7\u6c42\u7684\u5408\u6cd5\u6027\uff0c\u9632\u6b62\u6076\u610f\u6216\u65e0\u6548\u8bf7\u6c42\u3002<\/li>\n\n\n\n
            • \u9650\u6d41\u63aa\u65bd<\/strong>\uff1a \u5bf9\u9ad8\u9891\u7387\u7684\u8bf7\u6c42\u8fdb\u884c\u9650\u6d41\uff0c\u9632\u6b62\u6076\u610f\u8bf7\u6c42\u8fc7\u591a\u5730\u6253\u51fb\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n\n\n\n
              6.2 \u7f13\u5b58\u51fb\u7a7f<\/strong><\/p>\n\n\n\n
              \u7f13\u5b58\u51fb\u7a7f<\/strong> \uff08Cache Breakdown\uff09\u662f\u6307\u5728\u9ad8\u5e76\u53d1\u60c5\u51b5\u4e0b\uff0c\u67d0\u4e2a\u70ed\u70b9\u6570\u636e\u7684\u7f13\u5b58\u540c\u65f6\u5931\u6548\uff0c\u5927\u91cf\u8bf7\u6c42\u540c\u65f6\u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u77ac\u65f6\u538b\u529b\u589e\u5927\u3002<\/p>\n\n\n\n
              \u4ea7\u751f\u7f13\u5b58\u51fb\u7a7f\u7684\u4e3b\u8981\u539f\u56e0\u6709\uff1a<\/p>\n\n\n\n
                \n
              • \u70ed\u70b9\u6570\u636e\u8fc7\u671f<\/strong>\uff1a\u67d0\u4e9b\u9891\u7e41\u8bbf\u95ee\u7684\u6570\u636e\uff08\u70ed\u70b9\u6570\u636e\uff09\u5728\u540c\u4e00\u65f6\u95f4\u70b9\u5931\u6548\uff0c\u5bfc\u81f4\u5927\u91cf\u8bf7\u6c42\u540c\u65f6\u67e5\u8be2\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
              • \u7cfb\u7edf\u8bbe\u8ba1\u7f3a\u9677<\/strong>\uff1a\u7f3a\u4e4f\u5bf9\u70ed\u70b9\u6570\u636e\u7684\u6709\u6548\u4fdd\u62a4\u673a\u5236\uff0c\u65e0\u6cd5\u5e94\u5bf9\u7f13\u5b58\u5931\u6548\u7684\u7a81\u53d1\u60c5\u51b5\u3002<\/li>\n<\/ul>\n\n\n\n
                \u7f13\u5b58\u51fb\u7a7f\u7684\u5e38\u7528\u89e3\u51b3\u65b9\u6848\u6709\uff1a<\/p>\n\n\n\n
                  \n
                • \u4e92\u65a5\u9501\uff08Mutex Lock\uff09<\/strong>\uff1a\u5f53\u7f13\u5b58\u5931\u6548\u65f6\uff0c\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\u6216\u672c\u5730\u9501\u63a7\u5236\u53ea\u6709\u4e00\u4e2a\u8bf7\u6c42\u53bb\u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5e76\u8bbe\u7f6e\u65b0\u7684\u7f13\u5b58\uff0c\u5176\u4ed6\u8bf7\u6c42\u7b49\u5f85\u6216\u76f4\u63a5\u8fd4\u56de\u65e7\u503c\u3002<\/li>\n\n\n\n
                • \u63d0\u524d\u7eed\u671f<\/strong>\uff1a\u5728\u7f13\u5b58\u5373\u5c06\u8fc7\u671f\u65f6\uff0c\u63d0\u524d\u66f4\u65b0\u7f13\u5b58\uff0c\u907f\u514d\u6240\u6709\u8bf7\u6c42\u96c6\u4e2d\u5728\u540c\u4e00\u65f6\u95f4\u67e5\u8be2\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
                • \u968f\u673a\u8fc7\u671f\u65f6\u95f4<\/strong>\uff1a\u4e3a\u70ed\u70b9\u6570\u636e\u8bbe\u7f6e\u968f\u673a\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u907f\u514d\u6240\u6709\u6570\u636e\u5728\u540c\u4e00\u65f6\u95f4\u70b9\u5931\u6548\uff0c\u5206\u6563\u8bf7\u6c42\u8d1f\u8f7d\u3002<\/li>\n\n\n\n
                • \u53cc\u91cd\u68c0\u67e5\u9501<\/strong>\uff1a\u591a\u5c42\u6b21\u7684\u9501\u673a\u5236\uff0c\u786e\u4fdd\u53ea\u6709\u5fc5\u8981\u7684\u8bf7\u6c42\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u5176\u4ed6\u8bf7\u6c42\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e\u3002<\/li>\n\n\n\n
                • \u672c\u5730\u7f13\u5b58\u4e0e\u8fdc\u7a0b\u7f13\u5b58\u7ed3\u5408<\/strong>\uff1a\u901a\u8fc7\u5728\u5e94\u7528\u672c\u5730\u4f7f\u7528\u4e00\u7ea7\u7f13\u5b58\uff08\u5982\u672c\u5730\u5185\u5b58\u7f13\u5b58\uff09\uff0c\u51cf\u5c11\u5bf9\u8fdc\u7a0b\u7f13\u5b58\u7684\u4f9d\u8d56\uff0c\u964d\u4f4e\u51fb\u7a7f\u98ce\u9669\u3002<\/li>\n<\/ul>\n\n\n\n
                  6.3 \u7f13\u5b58\u96ea\u5d29<\/strong><\/p>\n\n\n\n
                  \u7f13\u5b58\u96ea\u5d29<\/strong>\uff08Cache Avalanche\uff09 \u662f\u6307\u5728\u77ed\u65f6\u95f4\u5185\uff0c\u5927\u91cf\u7f13\u5b58\u540c\u65f6\u5931\u6548\uff0c\u5bfc\u81f4\u5927\u91cf\u8bf7\u6c42\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u4ece\u800c\u5f15\u53d1\u6570\u636e\u5e93\u8fc7\u8f7d\u3001\u5b95\u673a\u7684\u73b0\u8c61\u3002\u901a\u5e38\u662f\u7531\u4e8e\u70ed\u70b9\u6570\u636e\u5927\u91cf\u96c6\u4e2d\u5728\u540c\u4e00\u65f6\u95f4\u70b9\u8fc7\u671f\uff0c\u6216\u8005\u7f13\u5b58\u670d\u52a1\u5668\u6545\u969c\u5bfc\u81f4\u5927\u91cf\u6570\u636e\u540c\u65f6\u5931\u6548\u3002<\/p>\n\n\n\n
                  \u4ea7\u751f\u7f13\u5b58\u96ea\u5d29\u7684\u4e3b\u8981\u539f\u56e0\u6709\uff1a<\/p>\n\n\n\n
                    \n
                  • \u7f13\u5b58\u5931\u6548\u65f6\u95f4\u7edf\u4e00<\/strong>\uff1a\u5927\u91cf\u7f13\u5b58\u91c7\u7528\u76f8\u540c\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u5bfc\u81f4\u540c\u65f6\u5931\u6548\u3002<\/li>\n\n\n\n
                  • \u7f13\u5b58\u670d\u52a1\u5668\u6545\u969c<\/strong>\uff1a\u7f13\u5b58\u670d\u52a1\u5668\u51fa\u73b0\u6545\u969c\u6216\u91cd\u542f\uff0c\u5bfc\u81f4\u6240\u6709\u7f13\u5b58\u6570\u636e\u77ac\u95f4\u5931\u6548\u3002<\/li>\n\n\n\n
                  • \u6784\u5efa\u7f13\u5b58\u7b56\u7565\u4e0d\u5f53<\/strong>\uff1a\u672a\u8003\u8651\u6570\u636e\u7684\u5206\u5e03\u548c\u8bbf\u95ee\u6a21\u5f0f\uff0c\u5bfc\u81f4\u5173\u952e\u6570\u636e\u96c6\u4e2d\u5728\u7f13\u5b58\u4e2d\uff0c\u4e14\u5931\u6548\u65f6\u95f4\u91cd\u53e0\u3002<\/li>\n<\/ul>\n\n\n\n
                    \u7f13\u5b58\u96ea\u5d29\u7684\u5e38\u7528\u89e3\u51b3\u65b9\u6848\u6709\uff1a<\/p>\n\n\n\n
                      \n
                    • \u968f\u673a\u8fc7\u671f\u65f6\u95f4<\/strong>\uff1a\u4e3a\u7f13\u5b58\u8bbe\u7f6e\u968f\u673a\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u907f\u514d\u5927\u91cf\u7f13\u5b58\u540c\u65f6\u5931\u6548\uff0c\u5206\u6563\u8bf7\u6c42\u8d1f\u8f7d\u3002<\/li>\n\n\n\n
                    • \u5408\u7406\u8bbe\u7f6e\u8fc7\u671f\u7b56\u7565<\/strong>\uff1a\u7efc\u5408\u8003\u8651\u6570\u636e\u8bbf\u95ee\u9891\u7387\u548c\u4e1a\u52a1\u9700\u6c42\uff0c\u5408\u7406\u8bbe\u7f6e\u4e0d\u540c\u6570\u636e\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u907f\u514d\u70ed\u70b9\u6570\u636e\u8fc7\u671f\u96c6\u4e2d\u3002<\/li>\n\n\n\n
                    • \u591a\u7ea7\u7f13\u5b58\u67b6\u6784<\/strong>\uff1a\u4f7f\u7528\u591a\u7ea7\u7f13\u5b58\uff08\u5982\u672c\u5730\u7f13\u5b58 + \u5206\u5e03\u5f0f\u7f13\u5b58\uff09\uff0c\u63d0\u9ad8\u7f13\u5b58\u7684\u5bb9\u9519\u6027\u548c\u8bbf\u95ee\u6548\u7387\uff0c\u964d\u4f4e\u96ea\u5d29\u98ce\u9669\u3002<\/li>\n\n\n\n
                    • \u7f13\u5b58\u9884\u70ed<\/strong>\uff1a\u5728\u7cfb\u7edf\u542f\u52a8\u6216\u7f13\u5b58\u8fc7\u671f\u524d\uff0c\u63d0\u524d\u52a0\u8f7d\u70ed\u70b9\u6570\u636e\u81f3\u7f13\u5b58\uff0c\u786e\u4fdd\u7f13\u5b58\u6301\u7eed\u53ef\u7528\u3002<\/li>\n\n\n\n
                    • \u964d\u7ea7\u7b56\u7565<\/strong>\uff1a\u5f53\u7f13\u5b58\u5931\u6548\u65f6\uff0c\u7cfb\u7edf\u53ef\u4ee5\u964d\u7ea7\u5904\u7406\uff0c\u4f8b\u5982\u8fd4\u56de\u9ed8\u8ba4\u503c\u3001\u8fdb\u884c\u6709\u9650\u9891\u7387\u7684\u6570\u636e\u5e93\u8bbf\u95ee\uff0c\u907f\u514d\u5168\u90e8\u8bf7\u6c42\u6d8c\u5411\u6570\u636e\u5e93\u3002<\/li>\n\n\n\n
                    • \u7f13\u5b58\u96c6\u7fa4\u9ad8\u53ef\u7528<\/strong>\uff1a\u4f7f\u7528\u9ad8\u53ef\u7528\u7684\u7f13\u5b58\u96c6\u7fa4\uff0c\u907f\u514d\u5355\u70b9\u6545\u969c\u5bfc\u81f4\u6240\u6709\u7f13\u5b58\u5931\u6548\u3002\u901a\u8fc7\u4e3b\u4ece\u590d\u5236\u3001\u6570\u636e\u5206\u7247\u7b49\u65b9\u5f0f\u63d0\u9ad8\u7f13\u5b58\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n
                    • \u76d1\u63a7\u4e0e\u62a5\u8b66<\/strong>\uff1a\u5b9e\u65f6\u76d1\u63a7\u7f13\u5b58\u548c\u6570\u636e\u5e93\u7684\u72b6\u6001\uff0c\u8bbe\u7acb\u62a5\u8b66\u673a\u5236\uff0c\u53ca\u65f6\u53d1\u73b0\u548c\u5904\u7406\u7f13\u5b58\u5f02\u5e38\u60c5\u51b5\uff0c\u9632\u6b62\u96ea\u5d29\u8fdb\u4e00\u6b65\u6269\u6563\u3002<\/li>\n<\/ul>\n\n\n\n
                      7. \u603b\u7ed3<\/strong><\/p>\n\n\n\n
                      \n\n\n\n
                      \u672c\u6587\uff0c\u6211\u4eec\u8be6\u7ec6\u5730\u5206\u6790\u4e86\u7f13\u5b58\uff0c\u5b83\u4f5c\u4e3a\u63d0\u5347\u5e94\u7528\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\uff0c\u5728 Java\u5f00\u53d1\u4e2d\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u4f46\u662f\u4ece\u672c\u6587\u7684\u5206\u6790\u4e5f\u53ef\u4ee5\u770b\u51fa\uff0c\u7f13\u5b58\u4e0d\u662f\u94f6\u5f39\uff0c\u9002\u5e94\u7f13\u5b58\u540c\u6837\u4f1a\u5e26\u6765\u5f88\u591a\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u5728\u5b9e\u9645\u5de5\u4f5c\u4e2d\uff0c\u662f\u5426\u4f7f\u7528\u7f13\u5b58\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u60c5\u51b5\u8fdb\u884c\u5224\u65ad\u3002\u5982\u679c\u4f7f\u7528\u4e86\u7f13\u5b58\uff0c\u4e00\u5b9a\u8981\u5bf9\u7f13\u5b58\u53ef\u80fd\u51fa\u73b0\u7684\u95ee\u9898\u505a\u597d\u5145\u5206\u7684\u5904\u7406\uff0c\u907f\u514d\u7f13\u5b58\u96ea\u5d29\u3001\u7f13\u5b58\u51fb\u7a7f\u7b49\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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