正则表达式匹配冒号后面的字符串“：”

I need to identify a sub string from any string based on a regular expression.

我需要根据正则表达式从任何字符串中识别子字符串。

For Example, take the following strings:

例如，请使用以下字符串：

It sent a notice of delivery of goods: UserName1
它发送了货物交付通知：UserName1
Sent a notice of delivery of the goods: User is not found, UserName2
发送货物交货通知：未找到用户，UserName2
It sent a notice of receipt of the goods: UserName1
它发送了收货通知：UserName1
It sent a notice of receipt of the goods: User is not found, UserName2
它发送了收货通知：未找到用户，UserName2

I want to get the text after colon

我希望在冒号之后得到文本

UserName1
USERNAME1
User is not found, UserName2
找不到用户，UserName2
UserName1
USERNAME1
User is not found, UserName2
找不到用户，UserName2

2 个解决方案

#1

You can use the regex like this:

您可以像这样使用正则表达式：

":(.*)"

Then, you should use something like this one (on Java):

然后，您应该使用类似这样的东西（在Java上）：

Matcher m = Pattern.compile(":(.*)").matcher(text);

if (m.find())
{
    System.out.println(m.group(1));
}

#2

import java.util.regex.Matcher; import java.util.regex.Pattern;

public class MatchColon {

    private Pattern pattern;
    private Matcher matcher;

    private static final String MATCHCOLON_PATTERN =
        ":(.*)";

    public MATCHCOLON(){
      pattern = Pattern.compile(MATCHCOLON_PATTERN);
    }

    public boolean validate(final String colon){
      matcher = pattern.matcher(colon);
      return matcher.matches();
    }
}

#1