{"id":202537,"date":"2025-05-22T10:58:11","date_gmt":"2025-05-22T02:58:11","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202537\/"},"modified":"2025-05-22T10:58:11","modified_gmt":"2025-05-22T02:58:11","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-java-%e5%87%bd%e6%95%b0%e4%b8%ad%e8%ae%b0%e5%bd%95%e6%80%a7%e8%83%bd%e7%9b%b8%e5%85%b3%e7%9a%84%e9%94%99%e8%af%af%e4%bf%a1%e6%81%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202537\/","title":{"rendered":"\u5982\u4f55\u5728 Java \u51fd\u6570\u4e2d\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5728 Java \u51fd\u6570\u4e2d\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f<\/h1>\n

\u5404\u4f4d\u5c0f\u4f19\u4f34\u4eec\uff0c\u5927\u5bb6\u597d\u5440\uff01\u770b\u770b\u4eca\u5929\u6211\u53c8\u7ed9\u5404\u4f4d\u5e26\u6765\u4e86\u4ec0\u4e48\u6587\u7ae0\uff1f\u672c\u6587\u6807\u9898\u662f<\/span>\u300a\u5982\u4f55\u5728 Java \u51fd\u6570\u4e2d\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\u300b<\/span>\uff0c\u5f88\u660e\u663e\u662f\u5173\u4e8e\u6587\u7ae0<\/span>\u7684\u6587\u7ae0\u54c8\u54c8\u54c8\uff0c\u5176\u4e2d\u5185\u5bb9\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\uff0c\u5982\u679c\u80fd\u5e2e\u5230\u4f60\uff0c\u89c9\u5f97\u5f88\u4e0d\u9519\u7684\u8bdd\uff0c\u6b22\u8fce\u5404\u4f4d\u591a\u591a\u70b9\u8bc4\u548c\u5206\u4eab\uff01<\/span><\/p>\n

\u5728 Java \u51fd\u6570\u4e2d\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 java.util.logging \u5305\u3002\u53ef\u4ee5\u4f7f\u7528 Logger \u7c7b\u6765\u8bb0\u5f55\u7279\u5b9a\u4e8e\u7c7b\u7684\u6d88\u606f\uff0c\u5e76\u6307\u5b9a\u8bb0\u5f55\u7ea7\u522b\uff0c\u4f8b\u5982 Level.WARNING\u3002\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\u63d0\u4f9b\u660e\u786e\u7684\u4fe1\u606f\u3001\u5305\u542b\u65f6\u95f4\u6233\u3001\u8bb0\u5f55\u8db3\u591f\u7684\u4fe1\u606f\u4ee5\u53ca\u8bb0\u5f55\u5230\u9002\u5f53\u7684\u65e5\u5fd7\u7ea7\u522b\u3002<\/p>\n

<\/p>\n

\u5982\u4f55\u5728 Java \u51fd\u6570\u4e2d\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f<\/h2>\n

\u7b80\u4ecb<\/strong><\/p>\n

\u5728\u9ad8\u6027\u80fd Java \u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u76d1\u63a7\u548c\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f\u5bf9\u4e8e\u5feb\u901f\u6545\u969c\u6392\u67e5\u81f3\u5173\u91cd\u8981\u3002\u5bf9\u4e8e\u6027\u80fd\u95ee\u9898\uff0c\u8bb0\u5f55\u7279\u5b9a\u7684\u9519\u8bef\u6d88\u606f\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5feb\u901f\u8bc6\u522b\u74f6\u9888\u5e76\u91c7\u53d6\u9002\u5f53\u7684\u63aa\u65bd\u3002\u672c\u6587\u5c06\u6307\u5bfc\u4f60\u5982\u4f55\u5728 Java \u51fd\u6570\u4e2d\u6709\u6548\u5730\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n

\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a Java \u51fd\u6570\uff0c\u8be5\u51fd\u6570\u6267\u884c\u4e00\u4e2a\u8ba1\u7b97\u5bc6\u96c6\u578b\u64cd\u4f5c\uff0c\u4f46\u6709\u65f6\u4f1a\u8d85\u65f6\u3002\u4e3a\u4e86\u8bca\u65ad\u539f\u56e0\uff0c\u6211\u4eec\u9700\u8981\u8bb0\u5f55\u6709\u5173\u8be5\u51fd\u6570\u6267\u884c\u7684\u8be6\u7ec6\u6027\u80fd\u4fe1\u606f\u3002<\/p>\n

import java.util.logging.Logger;\n\npublic class PerformanceLoggingExample {\n    private static final Logger logger = Logger.getLogger(PerformanceLoggingExample.class.getName());\n\n    public static void main(String[] args) {\n        long startTime = System.currentTimeMillis();\n        try {\n            \/\/ \u6267\u884c\u8ba1\u7b97\u5bc6\u96c6\u578b\u64cd\u4f5c\n        } catch (Exception e) {\n            long elapsedTime = System.currentTimeMillis() - startTime;\n            logger.log(Level.WARNING, \"\u8ba1\u7b97\u5bc6\u96c6\u578b\u64cd\u4f5c\u8d85\u65f6\uff0c\u8017\u65f6 \" + elapsedTime + \" \u6beb\u79d2\", e);\n        } finally {\n            \/\/ \u5176\u4ed6\u6e05\u7406\u5de5\u4f5c\n        }\n    }\n}<\/pre>\n
\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f<\/strong><\/p>\n
\u4e3a\u4e86\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\uff0cJava \u4e2d\u63d0\u4f9b\u4e86 java.util.logging<\/code> \u5305\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 Logger<\/code> \u7c7b\u6765\u8f7b\u677e\u8bb0\u5f55\u6d88\u606f\u3002<\/p>\n
    \n
  • Logger.getLogger()<\/code>\uff1a\u83b7\u53d6\u4e00\u4e2a\u7279\u5b9a\u4e8e\u7c7b\u7684\u8bb0\u5f55\u5668\u5b9e\u4f8b\u3002<\/li>\n
  • logger.log()<\/code>\uff1a\u5c06\u6d88\u606f\u8bb0\u5f55\u5230\u65e5\u5fd7\u6587\u4ef6\u4e2d\u3002<\/li>\n
  • Level.WARNING<\/code>\uff1a\u6307\u5b9a\u8bb0\u5f55\u7ea7\u522b\uff0c\u8868\u793a\u8be5\u6d88\u606f\u662f\u8b66\u544a\u7ea7\u522b\u7684\u3002<\/li>\n<\/ul>\n
    \u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n
      \n
    • \u660e\u786e\u7684\u4fe1\u606f\uff1a<\/strong>\u9519\u8bef\u4fe1\u606f\u5e94\u8be5\u6e05\u6670\u7b80\u660e\uff0c\u8bf4\u660e\u6027\u80fd\u95ee\u9898\u662f\u4ec0\u4e48\u4ee5\u53ca\u4f55\u65f6\u53d1\u751f\u7684\u3002<\/li>\n
    • \u5305\u542b\u65f6\u95f4\u6233\uff1a<\/strong>\u8bb0\u5f55\u65f6\u95f4\u6233\u53ef\u4ee5\u5e2e\u52a9\u786e\u5b9a\u6027\u80fd\u95ee\u9898\u53d1\u751f\u7684\u65f6\u95f4\u3002<\/li>\n
    • \u8bb0\u5f55\u8db3\u591f\u7684\u4fe1\u606f\uff1a<\/strong>\u9519\u8bef\u4fe1\u606f\u5e94\u8be5\u5305\u542b\u8db3\u591f\u7684\u4fe1\u606f\uff0c\u4ee5\u4fbf\u5f00\u53d1\u4eba\u5458\u5feb\u901f\u8bca\u65ad\u95ee\u9898\uff0c\u4f8b\u5982\u8c03\u7528\u7684\u65b9\u6cd5\u3001\u8f93\u5165\u53c2\u6570\u548c\u5f02\u5e38\u5806\u6808\u8ddf\u8e2a\u3002<\/li>\n
    • \u8bb0\u5f55\u5230\u9002\u5f53\u7684\u65e5\u5fd7\u7ea7\u522b\uff1a<\/strong>\u6839\u636e\u9519\u8bef\u7684\u4e25\u91cd\u7a0b\u5ea6\u9009\u62e9\u9002\u5f53\u7684\u65e5\u5fd7\u7ea7\u522b\uff0c\u4f8b\u5982 Level.FINE<\/code>\u3001Level.WARNING<\/code> \u6216 Level.SEVERE<\/code>\u3002<\/li>\n<\/ul>\n
      \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u5728 Java \u51fd\u6570\u4e2d\u8bb0\u5f55\u6027\u80fd\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\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\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ejava,\u6027\u80fd\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5982\u4f55\u5728 Java \u51fd\u6570\u4e2d\u8bb0\u5f55\u6027\u80fd...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202537","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202537","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202537"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202537\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}