{"id":129387,"date":"2024-10-26T21:15:21","date_gmt":"2024-10-26T13:15:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129387\/"},"modified":"2024-10-26T21:15:22","modified_gmt":"2024-10-26T13:15:22","slug":"redis%e9%8e%96%e8%ad%a6%e6%83%95%e5%a4%b1%e6%95%97%e5%98%97%e8%a9%a6%e6%ac%a1%e6%95%b8%ef%bc%88redis-%e9%8e%96%e5%98%97%e8%a9%a6%e6%ac%a1%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129387\/","title":{"rendered":"Redis\u9396\u8b66\u60d5\u5931\u6557\u5617\u8a66\u6b21\u6578\uff08redis \u9396\u5617\u8a66\u6b21\u6578\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e8%ad%a6%e6%83%95%e5%a4%b1%e6%95%97%e5%98%97%e8%a9%a6%e6%ac%a1%e6%95%b8%ef%bc%88redis-%e9%8e%96%e5%98%97%e8%a9%a6%e6%ac%a1%e6%95%b8%ef%bc%89-gTymLIRsIo\">Redis\u9396\u8b66\u60d5\u5931\u6557\u5617\u8a66\u6b21\u6578\uff08redis 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id=\"%e9%8e%96%e7%9a%84%e5%a4%b1%e6%95%97%e5%98%97%e8%a9%a6%e6%ac%a1%e6%95%b8-gTymLIRsIo\">\u9396\u7684\u5931\u6557\u5617\u8a66\u6b21\u6578<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u9396\u6642\uff0c\u5931\u6557\u5617\u8a66\u6b21\u6578\u662f\u6307\u5728\u7372\u53d6\u9396\u7684\u904e\u7a0b\u4e2d\uff0c\u56e0\u70ba\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u6301\u6709\u800c\u5c0e\u81f4\u7684\u5617\u8a66\u6b21\u6578\u3002\u9019\u500b\u6307\u6a19\u5c0d\u65bc\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u904e\u591a\u7684\u5931\u6557\u5617\u8a66\u53ef\u80fd\u6703\u5c0e\u81f4\u7cfb\u7d71\u7684\u5ef6\u9072\u548c\u8cc7\u6e90\u6d6a\u8cbb\u3002<\/p>\n<h3 id=\"%e5%a6%82%e4%bd%95%e8%a8%88%e7%ae%97%e5%a4%b1%e6%95%97%e5%98%97%e8%a9%a6%e6%ac%a1%e6%95%b8-gTymLIRsIo\">\u5982\u4f55\u8a08\u7b97\u5931\u6557\u5617\u8a66\u6b21\u6578<\/h3>\n<p>\u5728\u5be6\u73feRedis\u9396\u6642\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u4ee3\u78bc\u793a\u4f8b\u4f86\u8a08\u7b97\u5931\u6557\u5617\u8a66\u6b21\u6578\uff1a<\/p>\n<pre><code>int attempts = 0;\nboolean lockAcquired = false;\n\nwhile (attempts &lt; MAX_ATTEMPTS) {\n    lockAcquired = redis.set(\"lock_key\", \"lock_value\", \"NX\", \"EX\", 10);\n    if (lockAcquired) {\n        break; \/\/ \u7372\u5f97\u9396\n    }\n    attempts++;\n    Thread.sleep(100); \/\/ \u7b49\u5f85\u4e00\u6bb5\u6642\u9593\u518d\u91cd\u8a66\n}\n\nif (lockAcquired) {\n    \/\/ \u57f7\u884c\u81e8\u754c\u5340\u4ee3\u78bc\n} else {\n    \/\/ \u8655\u7406\u7372\u53d6\u9396\u5931\u6557\u7684\u60c5\u6cc1\n}<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u8a2d\u7f6e\u4e86\u4e00\u500b\u6700\u5927\u5617\u8a66\u6b21\u6578\uff08MAX_ATTEMPTS\uff09\uff0c\u4e26\u5728\u6bcf\u6b21\u7372\u53d6\u9396\u5931\u6557\u5f8c\u9032\u884c\u7b49\u5f85\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5c0dRedis\u7684\u8acb\u6c42\u983b\u7387\uff0c\u5f9e\u800c\u964d\u4f4e\u7cfb\u7d71\u7684\u8ca0\u64d4\u3002<\/p>\n<h3 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id=\"%e5%a6%82%e4%bd%95%e6%b8%9b%e5%b0%91%e5%a4%b1%e6%95%97%e5%98%97%e8%a9%a6%e6%ac%a1%e6%95%b8-gTymLIRsIo\">\u5982\u4f55\u6e1b\u5c11\u5931\u6557\u5617\u8a66\u6b21\u6578<\/h2>\n<p>\u70ba\u4e86\u6e1b\u5c11\u5931\u6557\u5617\u8a66\u6b21\u6578\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u589e\u52a0\u91cd\u8a66\u9593\u9694\uff1a<\/strong>\u5728\u6bcf\u6b21\u91cd\u8a66\u4e4b\u9593\u589e\u52a0\u7b49\u5f85\u6642\u9593\uff0c\u6e1b\u5c11\u5c0dRedis\u7684\u8acb\u6c42\u983b\u7387\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6307\u6578\u9000\u907f\u7b97\u6cd5\uff1a<\/strong>\u6839\u64da\u91cd\u8a66\u6b21\u6578\u52d5\u614b\u8abf\u6574\u7b49\u5f85\u6642\u9593\uff0c\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u7cfb\u7d71\u7684\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u8a2d\u7f6e\u5408\u7406\u7684\u9396\u8d85\u6642\uff1a<\/strong>\u78ba\u4fdd\u9396\u4e0d\u6703\u88ab\u9577\u6642\u9593\u6301\u6709\uff0c\u5f9e\u800c\u6e1b\u5c11\u5176\u4ed6\u9032\u7a0b\u7684\u7b49\u5f85\u6642\u9593\u3002<\/li>\n<\/ul>\n<h2 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