{"id":3817,"date":"2022-09-02T13:53:41","date_gmt":"2022-09-02T05:53:41","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3817"},"modified":"2022-09-02T13:53:41","modified_gmt":"2022-09-02T05:53:41","slug":"stopwatch","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3817","title":{"rendered":"StopWatch"},"content":{"rendered":"\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/juejin.cn\/post\/7124926821828657183\">\u522b\u518d\u7528 System.currentTimeMillis \u7edf\u8ba1\u8017\u65f6\u4e86\uff0c\u592a Low\uff0c\u8bd5\u8bd5 Spring Boot \u6e90\u7801\u5728\u7528\u7684 StopWatch\u5427\uff0c\u591f\u4f18\u96c5\uff01 &#8211; \u6398\u91d1 (juejin.cn)<\/a><\/p>\n\n\n\n<p>\u5982\u679c\u60f3\u8981\u8ba1\u7b97\u6b65\u9aa4\u7684\u7684\u8017\u65f6\uff0c\u901a\u5e38\u53ef\u4ee5\u6253\u5370\u4e24\u4e2a\u65f6\u95f4\u7684\u5dee\u503c\u3002\u8fd9\u91cc\u63d0\u4f9b\u4e00\u79cd\u65b9\u6cd5\uff0c\u76f4\u63a5\u4f7f\u7528<strong>StopWatch<\/strong>\u5de5\u5177\u7c7b\u6765\u5904\u7406<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u521b\u5efa\u4e00\u4e2a StopWatch \u5b9e\u4f8b\nStopWatch sw = new StopWatch(\"\u6c89\u9ed8\u738b\u4e8c\u662f\u50bb X\");\n\/\/ \u5f00\u59cb\u8ba1\u65f6\nsw.start(\"\u4efb\u52a11\");\n\nThread.sleep(1000);\n\n\/\/ \u505c\u6b62\u8ba1\u65f6\nsw.stop();\nSystem.out.printf(\"\u4efb\u52a11\u8017\u65f6\uff1a%d%s.\\n\", sw.getLastTaskTimeMillis(), \"ms\");\n\nsw.start(\"\u4efb\u52a12\");\nThread.sleep(1100);\nsw.stop();\n\nSystem.out.printf(\"\u4efb\u52a12\u8017\u65f6\uff1a%d%s.\\n\", sw.getLastTaskTimeMillis(), \"ms\");\nSystem.out.printf(\"\u4efb\u52a1\u6570\u91cf\uff1a%s\uff0c\u603b\u8017\u65f6\uff1a%ss.\\n\", sw.getTaskCount(), sw.getTotalTimeSeconds());\n<\/code><\/pre>\n\n\n\n<p>\u53e6\u5916\uff0cStopWatch \u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a <code>sw.prettyPrint()<\/code> \u65b9\u6cd5\u4f9b\u6253\u5370\u51fa\u6f02\u4eae\u7684\u683c\u5f0f\u5316\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>StopWatch '\u6c89\u9ed8\u738b\u4e8c\u662f\u50bb X': running time = 2108529351 ns\n---------------------------------------------\nns         %     Task name\n---------------------------------------------\n1004338467  048%  \u4efb\u52a11\n1104190884  052%  \u4efb\u52a12\n<\/code><\/pre>\n\n\n\n<p>\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u5de5\u5177\u7c7b\uff0c\u5982hutool\u63d0\u4f9b\u7684StopWatch\u6765\u5b9e\u73b0\u7c7b\u4f3c\u529f\u80fd\uff0c\u5b9e\u9645\u4e0a\u5185\u90e8\u8fd8\u662f\u4f7f\u7528nanotime\u6765\u5b9e\u73b0\u7684\uff0c\u7c7b\u4f3csystem.currentTimeMillis\u7684\u4e00\u4e2a\u5c01\u88c5\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53c2\u8003\uff1a\u522b\u518d\u7528 System.currentTimeMillis \u7edf\u8ba1\u8017\u65f6\u4e86\uff0c\u592a Low\uff0c\u8bd5\u8bd5 Spring B [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[242],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3817"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3817"}],"version-history":[{"count":9,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3817\/revisions"}],"predecessor-version":[{"id":3826,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3817\/revisions\/3826"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}