如何在Java中检查字符串是否包含日期？

您可以先使用正则表达式检查日期是否存在：

w+,s+w+s+d+,s+d+s+ats+d+:d+(pm|am)s+w{3,4}

此正则表达式同时匹配

Rahul Chowdhury Sunday, January 15, 2012 at 7:37pm ESTAritra Sinha Nirmal Friday, April 1, 2016 at 10:16pm EDT

https://regex101.com/r/V0dAf8/2/

当您在文本中找到匹配项时，可以

SimpleDateFormat

String input = "Rahul Chowdhury Sunday, January 15, 2012 at 7:37pm EST";String regex = "(\w+,\s+\w+\s+\d+\,\s+\d+\s+at\s+\d+:\d+(pm|am)\s+\w{3,4})";Matcher matcher = Pattern.compile(regex).matcher(input);if (matcher.find()) {  System.out.println(matcher.group(1));}

这将打印：

Sunday, January 15, 2012 at 7:37pm EST