{"id":203767,"date":"2025-05-22T08:32:20","date_gmt":"2025-05-22T00:32:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203767\/"},"modified":"2025-05-22T08:32:20","modified_gmt":"2025-05-22T00:32:20","slug":"java-%e4%b8%ad%e8%8e%b7%e5%8f%96%e6%97%b6%e9%97%b4%e6%88%b3%e7%9a%84%e5%a4%9a%e7%a7%8d%e6%96%b9%e6%b3%95%ef%bc%8c%e5%a6%82%e4%bd%95%e9%80%89%e6%8b%a9%e6%9c%80%e5%90%88%e9%80%82%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203767\/","title":{"rendered":"Java \u4e2d\u83b7\u53d6\u65f6\u95f4\u6233\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5982\u4f55\u9009\u62e9\u6700\u5408\u9002\u7684\uff1f"},"content":{"rendered":"

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

Java \u4e2d\u83b7\u53d6\u65f6\u95f4\u6233\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5982\u4f55\u9009\u62e9\u6700\u5408\u9002\u7684\uff1f<\/h1>\n

\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u6587\u7ae0<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300aJava \u4e2d\u83b7\u53d6\u65f6\u95f4\u6233\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5982\u4f55\u9009\u62e9\u6700\u5408\u9002\u7684\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

<\/p>\n

\u83b7\u53d6 Java \u65f6\u95f4\u6233\u65b9\u6cd5\u7684\u5f02\u540c<\/strong><\/p>\n

\u5bf9\u4e8e\u5f00\u53d1\u8005\u800c\u8a00\uff0c\u83b7\u53d6\u7cfb\u7edf\u65f6\u95f4\u6233\u662f\u5e38\u89c1\u9700\u6c42\u3002Java \u4e2d\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\u6b64\u529f\u80fd\uff0c\u5b83\u4eec\u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u6027\u80fd\u6548\u7387\u548c\u8fd4\u56de\u7684\u65f6\u95f4\u6233\u683c\u5f0f\u3002<\/p>\n

System.currentTimeMillis()<\/strong><\/p>\n

System.currentTimeMillis() \u65b9\u6cd5\u8fd4\u56de\u5f53\u524d\u65f6\u95f4\u7684\u6beb\u79d2\u6570\uff0c\u4ece Epoch \u65f6\u95f4\uff081970 \u5e74 1 \u6708 1 \u65e5\u5348\u591c UTC\uff09\u5f00\u59cb\u8ba1\u7b97\u3002\u5b83\u662f\u6700\u5e38\u89c1\u7684\u83b7\u53d6\u65f6\u95f4\u6233\u7684\u65b9\u6cd5\uff0c\u5177\u6709\u8f83\u9ad8\u7684\u6548\u7387\u3002<\/p>\n

new Date()<\/strong><\/p>\n

new Date() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a Date \u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5305\u542b\u5f53\u524d\u65f6\u95f4\u7684\u4fe1\u606f\u3002\u8be5\u65b9\u6cd5\u9996\u5148\u8c03\u7528 System.currentTimeMillis() \u83b7\u53d6\u6beb\u79d2\u6570\uff0c\u7136\u540e\u5c06\u6beb\u79d2\u6570\u8f6c\u6362\u4e3a Date \u5bf9\u8c61\u3002\u76f8\u5bf9\u4e8e\u76f4\u63a5\u4f7f\u7528 System.currentTimeMillis()\uff0cnew Date() \u6548\u7387\u7a0d\u4f4e\u3002<\/p>\n

Timestamp.valueOf(LocalDateTime)<\/strong><\/p>\n

Timestamp.valueOf() \u65b9\u6cd5\u5c06 LocalDateTime \u5bf9\u8c61\u8f6c\u6362\u4e3a Timestamp \u5bf9\u8c61\uff0c\u5176\u4e2d Timestamp \u5bf9\u8c61\u5305\u542b\u4e86\u5305\u542b\u7eb3\u79d2\u7ea7\u7cbe\u5ea6\u7684\u65f6\u95f4\u6233\u3002\u6b64\u65b9\u6cd5\u4e3b\u8981\u7528\u4e8e\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92\u65f6\u4f7f\u7528\u3002\u4e0e\u76f4\u63a5\u4f7f\u7528 System.currentTimeMillis() \u76f8\u6bd4\uff0c\u5b83\u6548\u7387\u66f4\u4f4e\uff0c\u4f46\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u7cbe\u5ea6\u3002<\/p>\n

\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u83b7\u53d6\u65f6\u95f4\u6233\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u8981\u6c42\u3002\u5982\u679c\u9700\u8981\u9ad8\u6548\u7387\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528 System.currentTimeMillis()\u3002\u5982\u679c\u9700\u8981 Date \u5bf9\u8c61\u6216\u7eb3\u79d2\u7ea7\u7cbe\u5ea6\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528 new Date() \u6216 Timestamp.valueOf() \u65b9\u6cd5\u3002<\/p>\n

\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJava \u4e2d\u83b7\u53d6\u65f6\u95f4\u6233\u7684\u591a\u79cd\u65b9\u6cd5\uff0c\u5982\u4f55\u9009\u62e9\u6700\u5408\u9002\u7684\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

Java \u4e2d\u83b7\u53d6\u65f6\u95f4\u6233\u7684\u591a\u79cd\u65b9\u6cd5...<\/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-203767","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203767","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=203767"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203767\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203767"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}