{"id":65222,"date":"2025-05-03T08:47:34","date_gmt":"2025-05-03T00:47:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65222\/"},"modified":"2025-05-03T08:47:34","modified_gmt":"2025-05-03T00:47:34","slug":"java%e6%95%b0%e7%bb%84%e6%97%a5%e6%9c%9f%e6%80%8e%e4%b9%88%e7%ae%97-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65222\/","title":{"rendered":"java\u6570\u7ec4\u65e5\u671f\u600e\u4e48\u7b97"},"content":{"rendered":"

\n \u5bf9\u4e8ejava\u6570\u7ec4\u4e2d\u7684\u65e5\u671f\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8ba1\u7b97\u65e5\u671f\u4e4b\u95f4\u7684\u5929\u6570\u5dee\uff1a\u521b\u5efa\u65e5\u671f\u6570\u7ec4\u9010\u4e2a\u6bd4\u8f83\u65e5\u671f\uff0c\u5e76\u7d2f\u52a0\u65e5\u671f\u5dee\u5c06\u65e5\u671f\u5dee\u8f6c\u6362\u4e3a\u5929\u6570\n<\/p><\/blockquote>\n

\"java\u6570\u7ec4\u65e5\u671f\u600e\u4e48\u7b97\u63d2\u56fe\"<\/p>\n

Java\u6570\u7ec4\u65e5\u671f\u8ba1\u7b97<\/strong><\/p>\n

\u5982\u4f55\u8ba1\u7b97Java\u6570\u7ec4\u4e2d\u65e5\u671f\u4e4b\u95f4\u7684\u5929\u6570\u5dee\uff1f<\/strong><\/p>\n

Java\u4e2d\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u8ba1\u7b97\u65e5\u671f\u4e4b\u95f4\u7684\u5929\u6570\u5dee\uff0c\u5bf9\u4e8e\u6570\u7ec4\u4e2d\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

    \n
  1. \n

    \u521b\u5efa\u65e5\u671f\u6570\u7ec4\uff1a<\/strong><\/p>\n

    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

    Date[] dates = { new Date(), new Date(), ... };<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
  2. \n
    \u6bd4\u8f83\u65e5\u671f\uff1a<\/strong><\/p>\n
    long diffInDays = 0;\nfor (int i = 1; i < dates.length; i++) {\n    long diffInMs = dates[i].getTime() - dates[i-1].getTime();\n    diffInDays += diffInMs \/ (1000 * 60 * 60 * 24);\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
  3. \n
    \u8fd4\u56de\u5929\u6570\u5dee\uff1a<\/strong><\/p>\n
    return diffInDays;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ol>\n
    \u5176\u4ed6\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u5982\u679c\u65e5\u671f\u6570\u7ec4\u5305\u542bnull<\/strong>\u503c\uff0c\u5219\u6bd4\u8f83\u4f1a\u629b\u51faNullPointerException<\/strong>\u5f02\u5e38\u3002<\/li>\n
    • \u5bf9\u4e8e\u8de8\u8d8a\u65f6\u533a\u8f6c\u6362\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528Calendar<\/strong>\u7c7b\u6216ZonedDateTime<\/strong>\u7c7b\u6765\u5904\u7406\u3002<\/li>\n
    • Java 8\u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\u63d0\u4f9b\u4e86Period<\/strong>\u7c7b\uff0c\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u8ba1\u7b97\u65e5\u671f\u548c\u65f6\u95f4\u4e4b\u95f4\u7684\u6301\u7eed\u65f6\u95f4\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u65e5\u671f\u600e\u4e48\u7b97\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5bf9\u4e8ejava\u6570\u7ec4\u4e2d\u7684\u65e5\u671f\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8ba1\u7b97\u65e5\u671f\u4e4b\u95f4\u7684\u5929\u6570\u5dee\uff1a\u521b\u5efa\u65e5\u671f\u6570\u7ec4\u9010\u4e2a\u6bd4\u8f83\u65e5\u671f\uff0c\u5e76\u7d2f\u52a0\u65e5\u671f\u5dee\u5c06\u65e5\u671f\u5dee\u8f6c\u6362\u4e3a\u5929\u6570 Java\u6570\u7ec4\u65e5\u671f\u8ba1\u7b97 \u5982\u4f55\u8ba1\u7b97Java\u6570\u7ec4\u4e2d\u65e5\u671f\u4e4b\u95f4\u7684\u5929\u6570\u5dee\uff1f Java\u4e2d\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u8ba1\u7b97\u65e5\u671f\u4e4b\u95f4\u7684\u5929\u6570\u5dee\uff0c\u5bf9\u4e8e\u6570\u7ec4\u4e2d\u7684\u65e5\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u521b\u5efa\u65e5\u671f\u6570\u7ec4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Date[] dates = { new Date(), new Date(), … }; \u767b\u5f55\u540e\u590d\u5236 \u6bd4\u8f83\u65e5\u671f\uff1a long diffInDays = 0; for (int i = 1; i < dates.length; i++) { long diffInMs = dates[i].getTime() – dates[i-1].getTime(); diffInDays += diffInMs \/ (1000 * 60 * 60 * 24); } \u767b\u5f55\u540e\u590d\u5236 \u8fd4\u56de\u5929\u6570\u5dee\uff1a return diffInDays; \u767b\u5f55\u540e\u590d\u5236 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-65222","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=65222"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65222\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}