{"id":303,"date":"2020-12-14T16:29:05","date_gmt":"2020-12-14T08:29:05","guid":{"rendered":"http:\/\/blog.refusea.com\/?p=303"},"modified":"2020-12-14T16:48:01","modified_gmt":"2020-12-14T08:48:01","slug":"java-%e7%a8%8b%e5%ba%8f%e5%a4%84%e7%90%86%e5%bc%82%e5%9c%b0%e6%9c%ba%e6%88%bf%e4%b8%8d%e5%90%8c%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/refusea.com\/?p=303","title":{"rendered":"Java \u7a0b\u5e8f\u5904\u7406\u5f02\u5730\u673a\u623f\u4e0d\u540c\u65f6\u533a\u95ee\u9898"},"content":{"rendered":"<h2>\u80cc\u666f<\/h2>\n<p>\u6211\u53f8\u6d77\u5916\u4e1a\u52a1\u7684\u7a0b\u5e8f\u90e8\u7f72\u5728\u9999\u6e2f\u673a\u623f\uff0c\u67d0\u6b21\u65b0\u7248\u672c\u53d1\u5e03\u65f6\uff0c\u7070\u5ea6\u6d4b\u8bd5\u53d1\u73b0\u4e2a bug\uff1a\u8fd0\u8425\u540c\u5b66\u8bbe\u7f6e\u7684\u7cbe\u9009\u89c6\u9891\uff0c\u6ca1\u6709\u6309\u65f6\u751f\u6548\uff0c\u76f8\u5173\u7684 SQL \u4ee3\u7801\u5982\u4e0b<\/p>\n<pre><code class=\"language-sql\">\/* \u67e5\u8be2\u51fa\u5f53\u524d\u751f\u6548\u7684\u89c6\u9891\u7cbe\u9009 *\/\nSELECT id FROM video_choice WHERE status=1 AND\neffective_time&lt;=NOW() AND expiration_time&gt;=NOW()<\/code><\/pre>\n<p>review \u4ee3\u7801\u6ca1\u6709\u627e\u5230\u5934\u7eea\uff0c\u540e\u6765\u597d\u4e0d\u5bb9\u6613\u53d1\u73b0\u662f\u670d\u52a1\u5668\u65f6\u533a\u8bbe\u7f6e\u95ee\u9898<\/p>\n<p>\u5728\u670d\u52a1\u5668\u4e0a\u6267\u884c <code>date<\/code> \u547d\u4ee4\u67e5\u770b\u65f6\u95f4\uff0c\u9999\u6e2f\u673a\u623f\u670d\u52a1\u5668\u65f6\u95f4\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">Fri Aug 14 08:24:26 BST 2020<\/code><\/pre>\n<p>\u56fd\u5185\u673a\u623f\u670d\u52a1\u5668\u65f6\u95f4\u662f<\/p>\n<pre><code class=\"language-bash\">Fri Aug 14 15:24:26 CST 2020<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\u65f6\u95f4\u76f8\u5dee\u4e86 7 \u4e2a\u5c0f\u65f6\uff0c\u9999\u6e2f\u673a\u623f\u65f6\u533a\u662f BST\uff0c\u56fd\u5185\u662f CST<\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u867d\u7136\u662f\u6d77\u5916\u4e1a\u52a1\uff0c\u4f46\u662f\u8fd0\u8425\u540c\u5b66\u8fdb\u884c\u4e1a\u52a1\u8bbe\u7f6e\u90fd\u662f\u9ed8\u8ba4\u4f7f\u7528\u5317\u4eac\u65f6\u95f4\u7684\uff0c\u6240\u4ee5\u89e3\u51b3\u65b9\u6848\u65e0\u975e\u662f\u4e24\u79cd<\/p>\n<ul>\n<li>\u6240\u6709\u673a\u623f\u7edf\u4e00\u4f7f\u7528\u5317\u4eac\u65f6\u95f4\uff0c\u65e0\u8bba\u662f\u56fd\u5185\u7684\u8fd8\u662f\u6d77\u5916\u7684<\/li>\n<li>\u5404\u4e2a\u533a\u57df\u7684\u673a\u623f\uff0c\u670d\u52a1\u5668\u65f6\u95f4\u4f7f\u7528\u5f53\u5730\u9ed8\u8ba4\u8bbe\u7f6e\uff0c\u7531\u7a0b\u5e8f\u5bf9\u4e0d\u540c\u65f6\u533a\u7684\u65f6\u95f4\u8fdb\u884c\u517c\u5bb9\u5904\u7406\uff0c\u7edf\u4e00\u8f6c\u6362\u6210\u5317\u4eac\u65f6\u95f4<\/li>\n<\/ul>\n<h3>\u4fee\u6539\u670d\u52a1\u5668\u65f6\u533a\u8bbe\u7f6e<\/h3>\n<p>\u627e\u5230\u8fd0\u7ef4\u540c\u5b66\u8981\u6c42\u4fee\u6539\u670d\u52a1\u5668\u65f6\u533a\u4e3a CST \u88ab\u62d2\u7edd\u4e86\uff0c\u8fd8\u8868\u793a\u6d77\u5916\u4e00\u5f8b\u7528 UTC \u65f6\u95f4\uff0c\u4e0d\u80fd\u968f\u4fbf\u6539\u3002<\/p>\n<p>\u95ee\u9898\u662f UTC \u65f6\u95f4\u548c\u5317\u4eac\u65f6\u95f4\u662f\u76f8\u5dee 8 \u5c0f\u65f6\uff0c\u73b0\u5728\u662f BST \u65f6\u95f4\u53ea\u5dee\u4e86 7 \u4e2a\u5c0f\u65f6\uff0c\u8fd8\u6709\u4e00\u4e2a\u5c0f\u65f6\u662f\u56e0\u4e3a BST \u6267\u884c\u590f\u4ee4\u65f6\u7684\u7f18\u6545<\/p>\n<p>\u5b9e\u9645\u4e0a\u9999\u6e2f\u6839\u672c\u5c31\u4e0d\u91c7\u7528\u590f\u4ee4\u65f6\uff0c\u6211\u4f30\u8ba1\u8fd0\u7ef4\u540c\u5b66\u5176\u5b9e\u4e5f\u6ca1\u6709\u5bf9\u9999\u6e2f\u673a\u623f\u7684\u65f6\u533a\u8fdb\u884c\u7279\u522b\u5904\u7406\uff0c\u9ed8\u8ba4\u5c31\u662f BST<\/p>\n<blockquote>\n<p>\u611f\u6168\u4e0b\uff0c\u9999\u6e2f\u5176\u5b9e\u548c\u5317\u4eac\u662f\u540c\u4e00\u65f6\u533a\uff0c\u4f46\u662f\u4eba\u5bb6\u7684\u673a\u623f\u5c31\u662f\u8981\u7528 BST\uff0c\u6709\u4e9b\u75d5\u8ff9\u5f88\u96be\u6d88\u9664\u7684<\/p>\n<\/blockquote>\n<h3>\u7a0b\u5e8f\u517c\u5bb9<\/h3>\n<p>\u65e2\u7136\u673a\u623f\u65f6\u533a\u4e0d\u80fd\u6539\uff0c\u90a3\u53ea\u597d\u7a0b\u5e8f\u6765\u517c\u5bb9\u4e86<\/p>\n<p>\u6700\u521d\u7684\u8bbe\u60f3\uff0c\u662f\u76f4\u63a5\u628a BST \u65f6\u95f4\u8f6c\u6362\u4e3a\u5317\u4eac\u65f6\u95f4\uff0c\u4e0d\u8fc7\u90a3\u4e2a\u590f\u4ee4\u65f6\u628a\u6211\u96be\u5012\u4e86\uff1a\u4ed6\u4eec\u7684\u590f\u4ee4\u65f6\u4ec0\u4e48\u65f6\u5019\u5f00\u59cb\u548c\u7ed3\u675f\u5462\uff1f<\/p>\n<p>\u53e6\u5916\uff0c\u5c06\u6765\u7a0b\u5e8f\u90e8\u7f72\u5230\u5176\u4ed6\u56fd\u5bb6\/\u5730\u533a\u7684\u673a\u623f\uff0c\u91c7\u7528\u7684\u65f6\u533a\u662f\u4e2a\u672a\u77e5\u7684\u65f6\u533a\uff0c\u662f\u5426\u91c7\u7528\u590f\u4ee4\u65f6\u4e5f\u4e0d\u77e5\u9053\uff0c\u53c8\u8be5\u5982\u4f55\u5904\u7406\uff1f<\/p>\n<p>\u7814\u7a76\u4ee5\u540e\u53d1\u73b0\uff0c\u60f3\u8981\u4e00\u52b3\u6c38\u9038\u7684\u89e3\u51b3\u4efb\u4f55\u65f6\u533a\u5230\u5317\u4eac\u65f6\u95f4\u7684\u8f6c\u6362\uff0c\u8fd8\u633a\u9ebb\u70e6\u7684\uff0c\u641e\u4e86\u534a\u5929\uff0c\u6ca1\u6709\u592a\u597d\u7684\u89e3\u51b3\u529e\u6cd5<\/p>\n<h2>\u51fa\u4e4e\u610f\u6599\u7684\u7b80\u5355\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u7f51\u4e0a\u67e5\u4e86\u4e00\u4e0b\uff0c\u53ef\u4ee5\u5728\u7a0b\u5e8f\u542f\u52a8\u65f6\u4f20\u4e00\u4e2a\u65f6\u533a\u53c2\u6570\uff0c\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">java app_name -D user.timezone=Asia\/Shanghai<\/code><\/pre>\n<p>\u4e0d\u8fc7\uff0c\u8fd9\u8981\u4fee\u6539\u6211\u4eec\u7684 web \u5bb9\u5668 jetty \u7684\u542f\u52a8\u811a\u672c\uff0c\u8fd0\u7ef4\u540c\u5b66\u80af\u5b9a\u4e0d\u4f1a\u540c\u610f\u7684<\/p>\n<p>\u4f46\u662f\u8fd9\u4e2a\u65b9\u6cd5\u7ed9\u4e86\u6211\u7075\u611f\uff0c\u53ef\u4ee5\u5728 java \u7a0b\u5e8f\u542f\u52a8\u540e\u7b2c\u4e00\u65f6\u95f4\u8bbe\u7f6e <code>user.timezone<\/code> \u73af\u5883\u53d8\u91cf\uff0c\u5982\u4e0b<\/p>\n<pre><code class=\"language-java\">System.setProperty(&quot;user.timezone&quot;, &quot;GMT+08:00&quot;);<\/code><\/pre>\n<p>\u4f7f\u7528 Spring \u7684\u6ce8\u89e3\u81ea\u52a8\u88c5\u914d\u7684\u8bdd\uff0c\u53ea\u8981\u5b9a\u4e49\u4e00\u4e2a\u7c7b\uff0c\u8ba9 IOC \u5bb9\u5668\u5b9e\u4f8b\u5316\u5373\u53ef\uff0c\u4e0d\u7528\u4fb5\u5165\u4efb\u4f55\u4ee3\u7801<\/p>\n<pre><code class=\"language-java\">@Component\npublic class TimeZoneHelper {\n\n    @Autowired\n    public TimeZoneHelper() {\n        System.setProperty(&quot;user.timezone&quot;, &quot;Asia\/Shanghai&quot;);\n        \/\/ \u5fc5\u987b\u6267\u884c\uff0c\u5426\u5219\u65b0\u7684\u65f6\u533a\u4e0d\u751f\u6548\n        TimeZone.setDefault(TimeZone.getTimeZone(&quot;Asia\/Shanghai&quot;));\n    }\n}<\/code><\/pre>\n<p>\u8fd9\u6837\uff0c\u65e0\u8bba\u4f60\u7684\u673a\u623f\u5728\u54ea\u4e2a\u5927\u6d32\u7684\u54ea\u4e2a\u56fd\u5bb6\/\u5730\u533a\uff0c\u4e5f\u65e0\u8bba\u5176\u65f6\u533a\u5982\u4f55\u8bbe\u7f6e\uff0c\u662f\u5426\u91c7\u7528\u590f\u4ee4\u65f6\uff0c\u90fd\u53ef\u4ee5\u7528\u5317\u4eac\u65f6\u95f4\u6765\u5904\u7406\u65f6\u95f4\u4e86<\/p>\n<h2>freemarker \u65f6\u533a\u8bbe\u7f6e<\/h2>\n<p>\u6211\u4eec\u7684\u524d\u7aef\u4f7f\u7528 freemarker \u6a21\u677f\uff0c\u5728\u4ee3\u7801\u91cc\u5f3a\u5236\u4fee\u6539\u65f6\u533a\u540e\uff0c\u53d1\u73b0\u7528\u6237\u754c\u9762\u4e0a\u6ca1\u6709\u751f\u6548\uff0c\u65f6\u95f4\u8fd8\u662f\u9999\u6e2f\u673a\u623f\u7684 BST \u65f6\u95f4\uff0c\u7ecf\u8fc7\u7814\u7a76\uff0c\u53d1\u73b0\u9875\u9762\u4e0a\u5c55\u793a\u65f6\u95f4\u662f\u7528\u7684 freemarker \u7684\u65f6\u95f4\u683c\u5f0f\u5316\u529f\u80fd\uff0c\u4ee3\u7801\u5982\u4e0b<\/p>\n<pre><code class=\"language-html\">&lt;tr&gt;\n    &lt;td&gt;\u5931\u6548\u65f6\u95f4&lt;\/td&gt;\n    &lt;td&gt;\n        &lt;!-- et \u662f\u4e2a java.util.Date \u5bf9\u8c61 --&gt;\n        &lt;input type=&quot;text&quot; value=&quot;${(et?datetime)!}&quot; name=&quot;endTime&quot;&gt;\n    &lt;\/td&gt;\n&lt;\/tr&gt;<\/code><\/pre>\n<p>\u770b\u6765\u662f freemarker \u4f7f\u7528\u7684\u65f6\u533a\u4f9d\u7136\u662f\u9999\u6e2f\u673a\u623f\u672c\u5730\u8bbe\u7f6e\uff0c\u5e76\u6ca1\u6709\u88ab\u6211\u4eec\u4fee\u6539\u65f6\u533a\u7684\u4ee3\u7801\u5f71\u54cd\u5230\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e freemarker \u7684\u65f6\u533a\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5728 spring \u914d\u7f6e\u6587\u4ef6\u91cc\u5982\u4e0b\u914d\u7f6e freemarker \u5373\u53ef<\/p>\n<pre><code class=\"language-xml\">&lt;bean class=&quot;org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer&quot;&gt;\n  &lt;property name=&quot;freemarkerSettings&quot;&gt;\n    &lt;props&gt;\n      ......\n      &lt;prop key=&quot;time_zone&quot;&gt;Asia\/Shanghai&lt;\/prop&gt;\n      &lt;prop key=&quot;sql_date_and_time_time_zone&quot;&gt;Asia\/Shanghai&lt;\/prop&gt;\n      ......\n    &lt;\/props&gt;\n  &lt;\/property&gt;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u80cc\u666f \u6211\u53f8\u6d77\u5916\u4e1a\u52a1\u7684\u7a0b\u5e8f\u90e8\u7f72\u5728\u9999\u6e2f\u673a\u623f\uff0c\u67d0\u6b21\u65b0\u7248\u672c\u53d1\u5e03\u65f6\uff0c\u7070\u5ea6\u6d4b\u8bd5\u53d1\u73b0\u4e2a bug\uff1a\u8fd0\u8425\u540c\u5b66\u8bbe\u7f6e\u7684\u7cbe\u9009\u89c6\u9891\uff0c\u6ca1\u6709 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[31],"class_list":["post-303","post","type-post","status-publish","format-standard","hentry","category-java","tag-timezone"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java \u7a0b\u5e8f\u5904\u7406\u5f02\u5730\u673a\u623f\u4e0d\u540c\u65f6\u533a\u95ee\u9898 - \u62d2\u6d77\u7a7a\u95f4<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/refusea.com\/?p=303\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"refusea.com\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/refusea.com\/?p=303#article\",\"isPartOf\":{\"@id\":\"https:\/\/refusea.com\/?p=303\"},\"author\":{\"name\":\"refusea.com\",\"@id\":\"https:\/\/refusea.com\/#\/schema\/person\/b5393cc8b15717000d19424552aae0df\"},\"headline\":\"Java 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