[小技巧]快速生成验证码

<dependency>
<groupId>com.github.penggle</groupId>
<artifactId>kaptcha</artifactId>
<version>2.3.2</version>
</dependency>

public static void main(String[] args) {
Properties properties = new Properties();
properties.setProperty("kaptcha.border", "yes");
properties.setProperty("kaptcha.border.color", "105,179,90");
properties.setProperty("kaptcha.textproducer.font.color", "blue");
properties.setProperty("kaptcha.image.width", "125");
properties.setProperty("kaptcha.image.height", "45");
properties.setProperty("kaptcha.textproducer.font.size", "45");
properties.setProperty("kaptcha.session.key", "code");
properties.setProperty("kaptcha.textproducer.char.length", "4");
properties.setProperty("kaptcha.textproducer.font.names", "宋体,楷体,微软雅黑");
Config config = new Config(properties);
DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
defaultKaptcha.setConfig(config);
String capText = defaultKaptcha.createText(); //验证码
System.out.println(capText);
BufferedImage bi = defaultKaptcha.createImage(capText);
File file = new File("D:\\temp\\image.jpg");
try {
ImageIO.write(bi, "jpg", file);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}