java - 在java上使用正则表达式检索字符串

Question

我有这些行:

This reverts commit c289f6fa1f8642a5caf728ef8ff87afd5718cd99.
This reverts commit c7740a943ec896247ebc5514b6be02710caf3c53.  There should
This reverts 518920b764ee9150781e68217181b24d0712748e commit.

我如何使用java上的正则表达式来仅检索数字:

c289f6fa1f8642a5caf728ef8ff87afd5718cd99
c7740a943ec896247ebc5514b6be02710caf3c53
518920b764ee9150781e68217181b24d0712748e

Answer 1

建议:使用JGit .

如果您确实坚持使用正则表达式来执行此操作，那么您可以使用此正则表达式:

\b[a-f0-9]{40}\b

使用:

final Pattern sha1Pattern = Pattern.compile("\\b[a-f0-9]{40}\\b");

final Matcher matcher = sha1Pattern.matcher(yourInput);
if (matcher.find())
    // sha1 is accessed via matcher.group()