SpringBoot中集成kaptcha验证码

1.kaptcha相关介绍

   Kaptcha是一个基于SimpleCaptcha的验证码开源项目。

2.集成方案

①pom.xml中配置依赖

 

  com.github.penggle
  kaptcha
  2.3.2

②配置验证码Kaptcha相关设置

 

 

@Configuration
public class kaptchaConfig {
    @Bean(name="captchaProducer")
    public DefaultKaptcha getKaptchaBean(){
        DefaultKaptcha defaultKaptcha=new DefaultKaptcha();
        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.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.setConfig(config);
        return defaultKaptcha;
    }
}

或者

在resources下创建myKaptcher.xml文件

 

    
        
            
                
                    
                        yes
                        105,179,90
                        blue
                        100
                        50
                        27
                        code
                        4
                        宋体,楷体,微软雅黑
                        23456789ABCEFGHJKMNOPQRSTUVWXYZ
                        com.google.code.kaptcha.impl.WaterRipple
                        black
                        com.google.code.kaptcha.impl.NoNoise
                        
                        185,56,213
                        white
                        3
                    
                
            
        
    

然后在启动类Application中加载配置

 

 

@EnableTransactionManagement// 启动注解事务管理，等同于xml配置方式的 
@SpringBootApplication
@EnableScheduling//启动注解定时任务
@MapperScan(basePackages = "com.shawn.mapper")
@ImportResource(locations={"classpath:mykaptcha.xml"})
public class Application extends SpringBootServletInitializer {

    public static void main(String[] args) throws Exception {
        SpringApplication.run(Application.class, args);
    }

}

 

两种配置方式在springboot中均可；

③KaptchaController

@CommonsLog
@Controller
public class KaptchaController extends BaseController {
    @Autowired
    private Producer captchaProducer;
    @GetMapping("/getKaptchaImage")
    public void getKaptchaImage() throws Exception {

        response.setDateHeader("Expires", 0);

        // Set standard HTTP/1.1 no-cache headers.
        response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
        // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
        response.addHeader("Cache-Control", "post-check=0, pre-check=0");
        // Set standard HTTP/1.0 no-cache header.
        response.setHeader("Pragma", "no-cache");
        // return a jpeg
        response.setContentType("image/jpeg");
        // create the text for the image
        String capText = captchaProducer.createText();
        // store the text in the session
        //request.getSession().setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
        //将验证码存到session
        session.setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
        log.info(capText);
        // create the image with the text
        BufferedImage bi = captchaProducer.createImage(capText);
        ServletOutputStream out = response.getOutputStream();
        // write the data out
        ImageIO.write(bi, "jpg", out);
        try {
            out.flush();
        } finally {
            out.close();
        }
    }
}

 

3.测试效果

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