2018-08-29 10:07:40 1053瀏覽
今天扣丁學(xué)堂Java培訓(xùn)老師給大家介紹一下關(guān)于SpringBoot集成kaptcha驗(yàn)證碼的具體代碼,首先kaptcha是一個(gè)非常實(shí)用的驗(yàn)證碼生成工具。有了它,你可以生成各種樣式的驗(yàn)證碼,因?yàn)樗强膳渲玫?。kaptcha工作的原理是調(diào)用com.google.code.kaptcha.servlet.KaptchaServlet,生成一個(gè)圖片。同時(shí)將生成的驗(yàn)證碼字符串放到HttpSession中,下面我們一起來看一下吧。
<!-- 驗(yàn)證碼--> <dependency> <groupId>com.github.penggle</groupId> <artifactId>kaptcha</artifactId> <version>2.3.2</version> </dependency>
@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", "宋體,楷體,微軟雅黑"); 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">宋體,楷體,微軟雅黑</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// 啟動(dòng)注解事務(wù)管理,等同于xml配置方式的 <tx:annotation-driven /> @SpringBootApplication @EnableScheduling//啟動(dòng)注解定時(shí)任務(wù) @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 @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); //將驗(yàn)證碼存到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(); } } }
2、測試效果
以上就是關(guān)于Java開發(fā)實(shí)現(xiàn)驗(yàn)證碼生成庫kaptcha使用的全部內(nèi)容,希望對大家的學(xué)習(xí)有所幫助,最后扣丁學(xué)堂有與時(shí)俱進(jìn)的java課程體系和大量的java視頻教程供學(xué)員觀看學(xué)習(xí),想要學(xué)好java開發(fā)技術(shù)的小伙伴快快行動(dòng)吧??鄱W(xué)堂Java技術(shù)交流群:670348138。
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