SpringBoot集成kaptcha验证码

<!-- 验证码--><dependency> <groupId>com.github.penggle</groupId> <artifactId>kaptcha</artifactId> <version>2.3.2</version></dependency>

@Configurationpublic 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;  }}

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">  <bean id="captchaProducer" class="com.google.code.kaptcha.impl.DefaultKaptcha">    <property name="config">      <bean class="com.google.code.kaptcha.util.Config">        <constructor-arg type="java.util.Properties">          <props>            <prop key = "kaptcha.border ">yes</prop>            <prop key="kaptcha.border.color">105,179,90</prop>            <prop key="kaptcha.textproducer.font.color">blue</prop>            <prop key="kaptcha.image.width">100</prop>            <prop key="kaptcha.image.height">50</prop>            <prop key="kaptcha.textproducer.font.size">27</prop>            <prop key="kaptcha.session.key">code</prop>            <prop key="kaptcha.textproducer.char.length">4</prop>            <prop key="kaptcha.textproducer.font.names">宋体,楷体,微软雅黑</prop>            <prop key="kaptcha.textproducer.char.string">23456789ABCEFGHJKMNOPQRSTUVWXYZ</prop>            <prop key="kaptcha.obscurificator.impl">com.google.code.kaptcha.impl.WaterRipple</prop>            <prop key="kaptcha.noise.color">black</prop>            <prop key="kaptcha.noise.impl">com.google.code.kaptcha.impl.NoNoise</prop>            <!--<prop key="kaptcha.noise.impl">com.google.code.kaptcha.impl.DefaultNoise</prop>-->            <prop key="kaptcha.background.clear.from">185,56,213</prop>            <prop key="kaptcha.background.clear.to">white</prop>            <prop key="kaptcha.textproducer.char.space">3</prop>          </props>        </constructor-arg>      </bean>    </property>  </bean></beans>

@EnableTransactionManagement// 启动注解事务管理，等同于xml配置方式的 <tx:annotation-driven />@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);  }}

@CommonsLog@Controllerpublic 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();    }  }}