格式化日期（形如Tue Jul 31 13:57:33 CST 2012）

最新推荐文章于 2022-06-09 17:05:49 发布

转载最新推荐文章于 2022-06-09 17:05:49 发布 · 1.5k 阅读

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#java #web

本文通过使用Java中的SimpleDateFormat类，详细介绍了如何将CST时间字符串格式化成指定模板的时间格式，并提供了实例代码。

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<span style="font-family:''Microsoft YaHei'';"><span style="font-family:'Microsoft YaHei';font-size:14px;">     本文以CST时间的解析和格式化为例：将CST时间的字符串格式化成某个指定模板的时间格式。该CST时间字符串为"</span></span><span style="font-family:'Microsoft YaHei';font-size:14px;line-height:21px;">Tue Jul 31 13:57:33 CST 2012</span><span style="font-family:'Microsoft YaHei';font-size:14px;">"，可以</span> <span style="font-size:14px;"> </span> <span style="font-family:'Microsoft YaHei';font-size:14px;">使用</span> <span style="font-size:14px;"> </span> <span style="font-family:'Microsoft YaHei';font-size:14px;">java.text.SimpleDateFormat类来完成。</span> <p><span style="font-family:'Microsoft YaHei';font-size:14px;">1、使用"yyyy-MM-dd HH:mm:ss"模板字符串，构造出第一个SimpleDateFormat类对象sdf1。</span></p>  <div><div id="highlighter_540761" class="syntaxhighlighter  java"><div class="toolbar"><span><a target=_blank href="http://my.oschina.net/belinwu/blog/70009#" class="toolbar_item command_help help">?</a></span></div><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td class="gutter"><div class="line number1 index0 alt2">1</div></td><td class="code"><div class="container"><div class="line number1 index0 alt2"><code class="java plain">DateFormat sdf1 = </code><code class="java keyword">new</code> <code class="java plain">SimpleDateFormat(</code><code class="java string">"yyyy-MM-dd HH:mm:ss"</code><code class="java plain">);</code></div></div></td></tr></tbody></table></div></div> <span style="font-family:'Microsoft YaHei';font-size:14px;">2、使用"EEE MMM dd HH:mm:ss 'CST' yyyy"模板字符串，构造出第二个</span> <span style="font-size:14px;"> </span> <span style="font-family:'Microsoft YaHei';"><span style="font-size:14px;">SimpleDateFormat类对象sdf2。若是某个国家/地区的CST时间，则附带上一个Locale对象。这里以Locale.US为例。</span>
 </span> <span style="font-family:'Microsoft YaHei';"></span><div><div id="highlighter_80469" class="syntaxhighlighter  java"><div class="toolbar"><span><a target=_blank href="http://my.oschina.net/belinwu/blog/70009#" class="toolbar_item command_help help">?</a></span></div><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td class="gutter"><div class="line number1 index0 alt2">1</div></td><td class="code"><div class="container"><div class="line number1 index0 alt2"><code class="java plain">DateFormat sdf2 = </code><code class="java keyword">new</code> <code class="java plain">SimpleDateFormat(</code><code class="java string">"EEE MMM dd HH:mm:ss 'CST' yyyy"</code><code class="java plain">, Locale.US);</code></div></div></td></tr></tbody></table></div></div> <span style="font-family:'', 'Microsoft YaHei', '';font-size:14px;">3、将CST时间字符串解析成</span> <span style="font-size:14px;"> </span> <span style="font-family:'Microsoft YaHei';"><span style="font-size:14px;">Locale.US日期</span>
 </span> <span style="font-family:''Microsoft YaHei'';"></span><div><div id="highlighter_664965" class="syntaxhighlighter  java"><div class="toolbar"><span><a target=_blank href="http://my.oschina.net/belinwu/blog/70009#" class="toolbar_item command_help help">?</a></span></div><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td class="gutter"><div class="line number1 index0 alt2">1</div></td><td class="code"><div class="container"><div class="line number1 index0 alt2"><code class="java plain">Date date = sdf2.parse(</code><code class="java string">"Tue Jul 31 13:57:33 CST 2012"</code><code class="java plain">);</code></div></div></td></tr></tbody></table></div></div> <span style="font-family:'Microsoft YaHei';font-size:14px;"> 4、格式化date对象为指定模板的时间格式 </span> 
 <div><div id="highlighter_696388" class="syntaxhighlighter  java"><div class="toolbar"><span><a target=_blank href="http://my.oschina.net/belinwu/blog/70009#" class="toolbar_item command_help help">?</a></span></div><table border="0" cellpadding="0" cellspacing="0"><tbody><tr><td class="gutter"><div class="line number1 index0 alt2">1</div></td><td class="code"><div class="container"><div class="line number1 index0 alt2"><code class="java plain">sdf1.format(date);</code></div></div></td></tr></tbody></table></div></div>



public class Test {
    public static void main(String[] args) {
        DateFormat sdf1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        DateFormat sdf2 = new SimpleDateFormat("EEE MMM dd HH:mm:ss 'CST' yyyy", Locale.US);
        try {
            Date date = sdf2.parse("Tue Jul 31 13:57:33 CST 2012");
            System.out.println(sdf1.format(date));
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }
}