前言

• 数据库中存储的邮箱数据五花八门。多个邮箱之间的分隔符可能是;、/、空格。
• 不管是啥分隔符，都替换为逗号
• 依赖 apache 的 commons-lang

代码

import org.apache.commons.lang3.StringUtils; public class TestStringReplaceAll {public static void main(String[] args) throws ParseException {String emails = "123@sohu.com/234@sohu.com/456@sohu.com";emails = StringUtils.replaceAll(emails, "[;/ ]+", ",");System.out.println(emails);emails = "123@sohu.com;234@sohu.com;456@sohu.com";emails = StringUtils.replaceAll(emails, "[;/ ]+", ",");System.out.println(emails);emails = "123@sohu.com 234@sohu.com 456@sohu.com";emails = StringUtils.replaceAll(emails, "[;/ ]+", ",");System.out.println(emails);emails = "123@sohu.com";emails = StringUtils.replaceAll(emails, "[;/ ]+", ",");System.out.println(emails);emails = "123@sohu.com/234@sohu.com;;/456@sohu.com 567@sohu.com";emails = StringUtils.replaceAll(emails, "[;/ ]+", ",");System.out.println(emails);} }

输出结果：

123@sohu.com,234@sohu.com,456@sohu.com 123@sohu.com,234@sohu.com,456@sohu.com 123@sohu.com,234@sohu.com,456@sohu.com 123@sohu.com 123@sohu.com,234@sohu.com,456@sohu.com,567@sohu.com

commons-lang的maven坐标

<dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.9</version> </dependency>

查新：https://mvnrepository.com/artifact/org.apache.commons/commons-lang3

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