在 Java 中,以下正则表达式
To: a@b\.com.*Subject: Please verify your email address
不知何故在此文本中找不到匹配项:
Dez 21, 2012 10:29:58 AM com.google.appengine.api.datastore.dev.LocalDatastoreService init
INFO: Local Datastore initialized:
Type: High Replication
Storage: In-memory
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: MailService.send
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: From:
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: To: a@b.com
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: Subject: Please verify your email address
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: Body:
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: Content-type: text/plain
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: Data length: 4
我的 Java 代码如下所示:
Matcher matcher = Pattern.compile(regex, Pattern.MULTILINE).matcher(input);
if (matcher.find()) {
...
}
这有点奇怪,因为当我使用此工具在线测试时,该模式似乎有效:http ://regexpal.com
因此,Java 必须对这种模式进行一些不同的解释。有什么办法可以得到错误信息Matcher
吗?
更新它应该找到:
To: a@b.com
Dez 21, 2012 10:29:58 AM com.google.appengine.api.mail.dev.LocalMailService log
INFO: Subject: Please verify your email address