{"id":200433,"date":"2025-05-06T12:30:01","date_gmt":"2025-05-06T04:30:01","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200433\/"},"modified":"2025-05-06T12:30:01","modified_gmt":"2025-05-06T04:30:01","slug":"druid-%e8%bf%9e%e6%8e%a5%e8%b6%85%e6%97%b6%e8%ad%a6%e5%91%8a%ef%bc%9a%e5%a6%82%e4%bd%95%e7%90%86%e8%a7%a3%e5%92%8c%e8%a7%a3%e5%86%b3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200433\/","title":{"rendered":"Druid \u8fde\u63a5\u8d85\u65f6\u8b66\u544a\uff1a\u5982\u4f55\u7406\u89e3\u548c\u89e3\u51b3\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Druid \u8fde\u63a5\u8d85\u65f6\u8b66\u544a\uff1a\u5982\u4f55\u7406\u89e3\u548c\u89e3\u51b3\uff1f<\/h1>\n<p>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241105\/173076844967296e419c949.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>druid \u8fde\u63a5\u8d85\u65f6\u95ee\u9898\u5256\u6790<\/strong><\/p>\n<p>\u5728\u5c06\u9879\u76ee\u90e8\u7f72\u5230 linux \u540e\uff0c\u60a8\u9047\u5230\u4e86\u4ee5\u4e0b\u8b66\u544a\uff1a<\/p>\n<pre>discard long time none received connection<\/pre>\n<p>\u8fd9\u53ef\u80fd\u8ba9\u4eba\u611f\u5230\u56f0\u60d1\uff0c\u4ee4\u4eba\u62c5\u5fe7\u3002<\/p>\n<p><strong>\u95ee\u9898\u539f\u56e0<\/strong><\/p>\n<p>\u6b64\u8b66\u544a\u662f\u60a8\u4f7f\u7528\u4e86 mysql \u6570\u636e\u5e93\u65f6\uff0cdruid \u5728\u91ca\u653e\u7a7a\u95f2\u8fde\u63a5\u65f6\u751f\u6210\u7684\u3002\u8fd9\u662f\u56e0\u4e3a mysql \u4f1a\u5b9a\u671f ping \u8fde\u63a5\uff0c\u4ee5\u786e\u4fdd\u8fde\u63a5\u4ecd\u7136\u6709\u6548\u3002\u5982\u679c\u8fde\u63a5\u7a7a\u95f2\u65f6\u95f4\u8fc7\u957f\uff0cmysql \u5c06\u5c06\u5176\u5173\u95ed\u3002druid \u5728\u91ca\u653e\u8fd9\u4e9b\u8fde\u63a5\u65f6\u4f1a\u751f\u6210\u8be5\u8b66\u544a\u3002<\/p>\n<p><strong>\u5f71\u54cd<\/strong><\/p>\n<p>\u8fd9\u4e2a\u8b66\u544a\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u4ea7\u751f\u8d1f\u9762\u5f71\u54cd\u3002\u5b83\u53ea\u662f\u8868\u793a druid \u6b63\u5728\u91ca\u653e\u4e0d\u518d\u9700\u8981\u7684\u7a7a\u95f2\u8fde\u63a5\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n<p>\u65e0\u9700\u91c7\u53d6\u4efb\u4f55\u64cd\u4f5c\u6765\u89e3\u51b3\u6b64\u8b66\u544a\u3002\u60a8\u53ef\u4ee5\u5b89\u5168\u5730\u5ffd\u7565\u5b83\u3002\u5982\u679c\u60a8\u5e0c\u671b\u7981\u7528\u6b64\u8b66\u544a\uff0c\u53ef\u4ee5\u4fee\u6539 druid \u914d\u7f6e\u6587\u4ef6\u4e2d\u7684 validationquery \u8bbe\u7f6e\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>druid.connection-pool.validation-query='SELECT 1 from dual'<\/pre>\n<p>\u901a\u8fc7\u8bbe\u7f6e\u6b64\u9009\u9879\uff0cdruid \u5c06\u4f7f\u7528 sql \u67e5\u8be2 select 1 from dual \u6765\u9a8c\u8bc1\u8fde\u63a5\uff0c\u8fd9\u5c06\u9632\u6b62 mysql \u5173\u95ed\u7a7a\u95f2\u8fde\u63a5\u3002<\/p>\n<p>\u8bf7\u6ce8\u610f\uff0c\u6b64\u89e3\u51b3\u65b9\u6848\u4ec5\u9002\u7528\u4e8e mysql \u6570\u636e\u5e93\u3002\u5bf9\u4e8e\u5176\u4ed6\u6570\u636e\u5e93\uff0c\u6b64\u8b66\u544a\u53ef\u80fd\u8868\u793a\u5b58\u5728\u6f5c\u5728\u95ee\u9898\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u8c03\u67e5\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aDruid \u8fde\u63a5\u8d85\u65f6\u8b66\u544a\uff1a\u5982\u4f55\u7406\u89e3\u548c\u89e3\u51b3\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Druid 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