{"id":49683,"date":"2023-08-20T21:58:36","date_gmt":"2023-08-20T13:58:36","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=49683"},"modified":"2023-08-20T21:58:39","modified_gmt":"2023-08-20T13:58:39","slug":"java%e9%94%81%e6%9c%89%e5%93%aa%e4%ba%9b%e7%a7%8d%e7%b1%bb%ef%bc%8c%e4%bb%a5%e5%8f%8a%e5%8c%ba%e5%88%ab%e6%98%af%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/49683.html","title":{"rendered":"Java\u9501\u6709\u54ea\u4e9b\u79cd\u7c7b\uff0c\u4ee5\u53ca\u533a\u522b\u662f\u4ec0\u4e48"},"content":{"rendered":"\n
\n

Java\u4e2d\u7684\u9501\u4e3b\u8981\u7528\u4e8e\u591a\u7ebf\u7a0b\u7f16\u7a0b\uff0c\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u548c\u7ebf\u7a0b\u5b89\u5168\u3002\u4e3b\u8981\u5206\u4e3a\u4ee5\u4e0b\u51e0\u79cd\uff1a1\u3001\u5185\u7f6e\u9501\uff08synchronized\uff09<\/strong>\uff1b2\u3001\u53ef\u91cd\u5165\u9501\uff08ReentrantLock\uff09<\/strong>\uff1b3\u3001\u8bfb\u5199\u9501\uff08ReadWriteLock\uff09<\/strong>\uff1b4\u3001StampedLock<\/strong>\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e9b\u9501\u7684\u7279\u70b9\u3001\u4f7f\u7528\u573a\u666f\u53ca\u5176\u76f8\u4e92\u4e4b\u95f4\u7684\u533a\u522b\u3002Java\u7684\u5185\u7f6e\u9501\u662f\u901a\u8fc7synchronized<\/code>\u5173\u952e\u5b57\u5b9e\u73b0\u7684\uff0c\u662f\u6700\u57fa\u672c\u7684\u9501\u673a\u5236\u3002<\/p>\n<\/blockquote>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u4e00\u3001\u5185\u7f6e\u9501\uff08synchronized\uff09<\/h2>\n\n\n\n

Java\u7684\u5185\u7f6e\u9501\u662f\u901a\u8fc7synchronized<\/code>\u5173\u952e\u5b57\u5b9e\u73b0\u7684\uff0c\u662f\u6700\u57fa\u672c\u7684\u9501\u673a\u5236\u3002<\/p>\n\n\n\n

    \n
  • \u6613\u7528\u6027<\/strong>\uff1a\u4f7f\u7528\u7b80\u5355\uff0c\u65e0\u9700\u663e\u5f0f\u521b\u5efa\u548c\u91ca\u653e\u9501\u3002<\/li>\n\n\n\n
  • \u5c40\u9650\u6027<\/strong>\uff1a\u6548\u7387\u8f83\u4f4e\uff0c\u4e0d\u652f\u6301\u9ad8\u7ea7\u529f\u80fd\uff0c\u5982\u8d85\u65f6\u3001\u4e2d\u65ad\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n

    \u4e8c\u3001\u53ef\u91cd\u5165\u9501\uff08ReentrantLock\uff09<\/h2>\n\n\n\n

    ReentrantLock<\/code>\u7c7b\u662fjava.util.concurrent.locks<\/code>\u5305\u7684\u4e00\u90e8\u5206\uff0c\u63d0\u4f9b\u4e86\u4e0esynchronized<\/code>\u7c7b\u4f3c\u7684\u540c\u6b65\uff0c\u4f46\u66f4\u7075\u6d3b\u3002<\/p>\n\n\n\n

      \n
    • \u7075\u6d3b\u6027<\/strong>\uff1a\u652f\u6301\u516c\u5e73\u548c\u975e\u516c\u5e73\u9009\u62e9\uff0c\u8fd8\u652f\u6301\u6761\u4ef6\u5bf9\u8c61\u3002<\/li>\n\n\n\n
    • \u63a7\u5236\u6027<\/strong>\uff1a\u5fc5\u987b\u663e\u5f0f\u5730\u83b7\u53d6\u548c\u91ca\u653e\u9501\u3002<\/li>\n<\/ul>\n\n\n\n

      \u4e09\u3001\u8bfb\u5199\u9501\uff08ReadWriteLock\uff09<\/h2>\n\n\n\n

      ReadWriteLock<\/code>\u63a5\u53e3\u5141\u8bb8\u591a\u4e2a\u8bfb\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\uff0c\u4f46\u5199\u7ebf\u7a0b\u5c06\u88ab\u72ec\u5360\u3002<\/p>\n\n\n\n

        \n
      • \u5e76\u53d1\u6027<\/strong>\uff1a\u8bfb\u53d6\u64cd\u4f5c\u53ef\u5e76\u53d1\u6267\u884c\uff0c\u63d0\u9ad8\u4e86\u8bfb\u53d6\u6548\u7387\u3002<\/li>\n\n\n\n
      • \u72ec\u5360\u5199<\/strong>\uff1a\u5199\u5165\u64cd\u4f5c\u53ea\u5141\u8bb8\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\uff0c\u4fdd\u8bc1\u6570\u636e\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n\n\n\n

        \u56db\u3001StampedLock<\/h2>\n\n\n\n

        StampedLock<\/code>\u662fJava 8\u5f15\u5165\u7684\u4e00\u79cd\u65b0\u7684\u9501\u673a\u5236\uff0c\u63d0\u4f9b\u4e50\u89c2\u8bfb\u9501\u3002<\/p>\n\n\n\n

          \n
        • \u9ad8\u6027\u80fd<\/strong>\uff1a\u4e50\u89c2\u8bfb\u9501\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7edf\u7684\u541e\u5410\u91cf\u3002<\/li>\n\n\n\n
        • \u590d\u6742\u6027<\/strong>\uff1a\u4f7f\u7528\u76f8\u5bf9\u590d\u6742\uff0c\u9700\u8981\u66f4\u591a\u7684\u7f16\u7a0b\u8003\u8651\u3002<\/li>\n<\/ul>\n\n\n\n

          \u4e94\u3001\u533a\u522b\u6c47\u603b<\/strong><\/h2>\n\n\n\n
            \n
          1. \u529f\u80fd\u8303\u56f4<\/strong>\uff1a\u4ecesynchronized<\/code>\u5230StampedLock<\/code>\uff0c\u529f\u80fd\u9010\u6e10\u4e30\u5bcc\uff0c\u7075\u6d3b\u6027\u9010\u6e10\u589e\u5f3a\u3002<\/li>\n\n\n\n
          2. \u6027\u80fd<\/strong>\uff1a\u5185\u7f6e\u9501\u6548\u7387\u6700\u4f4e\uff0cStampedLock<\/code>\u6548\u7387\u8f83\u9ad8\u3002<\/li>\n\n\n\n
          3. \u9002\u7528\u573a\u666f<\/strong>\uff1a\u4e0d\u540c\u7c7b\u578b\u7684\u9501\u9002\u5408\u4e0d\u540c\u7684\u4f7f\u7528\u573a\u666f\uff0c\u9009\u62e9\u5e94\u6839\u636e\u5177\u4f53\u9700\u6c42\u3002<\/li>\n<\/ol>\n\n\n\n
            \n\n\n\n

            \u5e38\u89c1\u95ee\u7b54<\/strong><\/h2>\n\n\n\n
              \n
            • Q1:\u4f55\u65f6\u9009\u62e9\u4f7f\u7528ReentrantLock\u800c\u4e0d\u662fsynchronized?<\/strong> <\/li>\n\n\n\n
            • A1:\u5f53\u9700\u8981\u66f4\u7075\u6d3b\u7684\u9501\u63a7\u5236\u65f6\uff0c\u5982\u8d85\u65f6\u3001\u4e2d\u65ad\u7b49\u3002<\/li>\n\n\n\n
            • Q2:ReadWriteLock\u5982\u4f55\u63d0\u9ad8\u6027\u80fd?<\/strong> <\/li>\n\n\n\n
            • A2:\u5141\u8bb8\u591a\u4e2a\u8bfb\u7ebf\u7a0b\u5e76\u53d1\u6267\u884c\uff0c\u63d0\u9ad8\u4e86\u8bfb\u53d6\u6548\u7387\u3002<\/li>\n\n\n\n
            • Q3:StampedLock\u7684\u4e50\u89c2\u8bfb\u9501\u662f\u5982\u4f55\u5de5\u4f5c\u7684?<\/strong> <\/li>\n\n\n\n
            • A3:\u5141\u8bb8\u5728\u6ca1\u6709\u5b8c\u5168\u9501\u5b9a\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u8bfb\u53d6\uff0c\u901a\u8fc7\u7248\u672c\u6233\u6765\u68c0\u6d4b\u6570\u636e\u662f\u5426\u66f4\u6539\u3002<\/li>\n\n\n\n
            • Q4:\u5982\u4f55\u786e\u4fdd\u6b63\u786e\u4f7f\u7528\u9501?<\/strong> <\/li>\n\n\n\n
            • A4:\u9075\u5faa\u4f18\u5f02\u5b9e\u8df5\uff0c\u5982\u907f\u514d\u6b7b\u9501\uff0c\u5408\u7406\u9009\u62e9\u9501\u7c7b\u578b\u7b49\u3002<\/li>\n\n\n\n
            • Q5:\u53ef\u91cd\u5165\u9501\u548c\u5185\u7f6e\u9501\u6709\u4f55\u76f8\u4f3c\u4e4b\u5904?<\/strong> <\/li>\n\n\n\n
            • A5:\u90fd\u63d0\u4f9b\u4e86\u4e92\u65a5\u7684\u540c\u6b65\u63a7\u5236\uff0c\u4f46\u53ef\u91cd\u5165\u9501\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u529f\u80fd\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"Java\u4e2d\u7684\u9501\u4e3b\u8981\u7528\u4e8e\u591a\u7ebf\u7a0b\u7f16\u7a0b\uff0c\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u548c\u7ebf\u7a0b\u5b89\u5168\u3002\u4e3b\u8981\u5206\u4e3a\u4ee5\u4e0b\u51e0\u79cd\uff1a1\u3001\u5185\u7f6e\u9501\uff08synchroniz […]","protected":false},"author":6,"featured_media":49684,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[1572,1573,1574,1575,1569,1571,1570,367],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/49683"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=49683"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/49683\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/49684"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=49683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=49683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=49683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}