commons is a little java tool to make your development easier in your work.
'com.github.penggle:kaptcha:2.3.2'
<dependency>
<groupId>com.github.penggle</groupId>
<artifactId>kaptcha</artifactId>
<version>2.3.2</version>
</dependency>
<dependency org="com.github.penggle" name="kaptcha" rev="2.3.2"/>
"com.github.penggle", "kaptcha", "2.3.2"