{"id":1086,"date":"2022-10-22T22:35:40","date_gmt":"2022-10-22T14:35:40","guid":{"rendered":"https:\/\/qaqaq.top\/?p=1086"},"modified":"2022-11-27T12:39:50","modified_gmt":"2022-11-27T04:39:50","slug":"util-date%e4%b8%8esql-date%e7%9b%b8%e4%ba%92%e8%bd%ac%e6%8d%a2%e3%80%81util-date%e4%b8%8e%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9b%b8%e4%ba%92%e8%bd%ac%e6%8d%a2","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=1086","title":{"rendered":"util.Date\u4e0esql.Date\u76f8\u4e92\u8f6c\u6362\u3001util.Date\u4e0e\u5b57\u7b26\u4e32\u76f8\u4e92\u8f6c\u6362"},"content":{"rendered":"\n<p>util.Date\u4e0esql.Date\u76f8\u4e92\u8f6c\u6362\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a\u901a\u8fc7getTime()\u65b9\u6cd5\uff0cgetTime()\u8fd4\u56deLong\u7c7b\u578b<\/p>\n\n\n\n<p>\u4e24\u8005\u7684getTime\u65b9\u6cd5\u662f\u4e00\u6837\u7684\uff0c\u5e94\u8be5\u90fd\u662f\u7ee7\u627f\u81eaDate\u7c7b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    public long getTime() {\n        return getTimeImpl();\n    }\n\n    private final long getTimeImpl() {\n        if (cdate != null &amp;&amp; !cdate.isNormalized()) {\n            normalize();\n        }\n        return fastTime;\n    }<\/code><\/pre>\n\n\n\n<p>\u53e6\u5916\uff0cutil.Date\u4e0esql.Date\u90fd\u53ef\u4ee5\u4f7f\u7528SimpleDateFormat\u6765\u6539\u53d8\u683c\u5f0f\uff0c\u539f\u56e0\u662fsimpleDateFormat.format()\u65b9\u6cd5\u7684\u53c2\u6570\u4e3aDate\u7c7b\u578b<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">util.Date\u8f6c\u6362\u4e3asql.Date<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>java.sql.Date sqldate = new java.sql.Date(new java.util.Date().getTime());\nSystem.out.println(sqldate);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">sql.Date\u8f6c\u6362\u4e3autil.Date<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>java.sql.Date sqldate = new java.sql.Date(new java.util.Date().getTime());\nSystem.out.println(sqldate);\njava.util.Date utildate = new java.util.Date(sqldate.getTime());\nSystem.out.println(utildate);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">util.Date\u4f7f\u7528SimpleDateFormat\uff08util.Date\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff09<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>SimpleDateFormat simpleDateFormat = new SimpleDateFormat(\"yyy-MM-dd hh.mm.ss\");\njava.util.Date utildate = new java.util.Date();\nSystem.out.println(simpleDateFormat.format(utildate));<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">sql.Date\u4f7f\u7528SimpleDateFormat\uff08sql.Date\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff09<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>SimpleDateFormat simpleDateFormat = new SimpleDateFormat(\"yyy-MM-dd hh.mm.ss\");\njava.sql.Date sqldate = new java.sql.Date(new java.util.Date().getTime());\nSystem.out.println(simpleDateFormat.format(sqldate));<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3autil.Date<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>String s = \"2021-01-21 21:58:03\";\nSimpleDateFormat simpleDateFormat = new SimpleDateFormat(\"yyyy-MM-dd HH:mm:ss\");\nDate date = simpleDateFormat.parse(s);<\/code><\/pre>\n\n\n\n<p>\u5e94\u6ce8\u610f\uff1a<\/p>\n\n\n\n<p>\u5b57\u7b26\u4e32\u53ea\u80fd\u8f6c\u6362\u4e3autil.Date\uff0c\u800c\u4e0d\u80fd\u8f6c\u6362\u4e3asql.Date\uff0c\u56e0\u4e3asimpleDateFormat.parse()\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u5c31\u53ea\u6709util.Date<\/p>\n\n\n\n<p>\u82e5\u60f3\u5c06\u5b57\u7b26\u4e32\u8f6c\u4e3asql.Date\uff0c\u53ef\u5148\u5c06\u5b57\u7b26\u4e32\u8f6c\u4e3autil.Date\u518d\u8f6c\u4e3asql.Date<\/p>\n","protected":false},"excerpt":{"rendered":"<p>util.Date\u4e0esql.Date\u76f8\u4e92\u8f6c\u6362\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a\u901a\u8fc7getTime()\u65b9\u6cd5\uff0cgetTime()\u8fd4\u56deL [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[46],"class_list":["post-1086","post","type-post","status-publish","format-standard","hentry","category-java-","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1086"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1086"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1086\/revisions"}],"predecessor-version":[{"id":1087,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1086\/revisions\/1087"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}