前言 一次学习过程中简单的记录
一、下载安装Redis
这里就不多说了，下载安装好Redis，最好是把Redis Desktop Manager一起安装了，可视化看的舒服一点。
二、代码部分
1.引入库，配置yml
引入Redis依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
这里就简单配置做示例，小伙伴们根据自己的业务需求来配置哈~
server:
port: 8081
spring:
redis:
database: 3
jedis:
pool:
max-active: 8
max-wait: -1
lettuce:
pool:
min-idle: 0
timeout: 5000
2.编写RedisConfig
@Configuration
public class RedisConfig extends CachingConfigurerSupport {
@Bean
@SuppressWarnings("all")
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
StringRedisSerializer keySerializer = new StringRedisSerializer();
GenericFastJsonRedisSerializer valueSerializer = new GenericFastJsonRedisSerializer();
redisTemplate.setConnectionFactory(redisConnectionFactory);
// 序列化 key 和 value
redisTemplate.setKeySerializer(keySerializer);
redisTemplate.setValueSerializer(valueSerializer);
redisTemplate.setHashKeySerializer(keySerializer);
redisTemplate.setHashValueSerializer(valueSerializer);
return redisTemplate;
}
}
3.编写RedisUtils
@Component
public class RedisClient {
@Resource
private RedisTemplate<String, Object> redisTemplate;
public void set(String key, Object value) {
redisTemplate.opsForValue().set(key, value);
}
public void set(String key, Object value, long timeout) {
redisTemplate.opsForValue().set(key, value, timeout, TimeUnit.SECONDS);
}
public boolean delete(String key) {
redisTemplate.delete(key);
// 如果还存在这个 key 就证明删除失败
if (redisTemplate.hasKey(key)) {
return false;
// 不存在就证明删除成功
} else {
return true;
}
}
public Object get(String key) {
if (redisTemplate.hasKey(key)) {
return redisTemplate.opsForValue().get(key);
} else {
return null;
}
}
public long getExpire(String key) {
// 判断是否存在
if (redisTemplate.hasKey(key)) {
return redisTemplate.getExpire(key);
} else {
return Long.parseLong(-2 + "");
}
}
4.编写Controller测试
@Controller
@ResponseBody
public class CaptchaController {
@Resource
private RedisClient redisClient;
@GetMapping("/captcha")
public void captcha(HttpServletRequest request, HttpServletResponse response) throws Exception {
SpecCaptcha specCaptcha = new SpecCaptcha(130, 48, 4);
specCaptcha.setFont(Captcha.FONT_1);
String id = UUID.randomUUID().toString();
response.setHeader("id", id);
CaptchaUtil.out(specCaptcha, request, response);
String verCode = specCaptcha.text().toLowerCase();
redisClient.set(id, verCode);//可设置有效时间，单位为秒
}
@PostMapping(value = "/check")
public boolean check(@RequestBody String info) {
JSONObject jsonObject = JSON.parseObject(info);
String id = jsonObject.getString("id");
String code = jsonObject.getString("code");
String s = redisClient.get(id).toString();//id
return code.equalsIgnoreCase(s);
}
}
访问localhost:8081/captcha 别忘了启动Redis
这里的id就是存进Redis的键
我们拿到Redis的键再去请求 localhost:8081/check 验证我们的验证码是否是正确的
总结
到此这篇关于SpringBoot集成Redis实现验证码的简单案例的文章就介绍到这了,更多相关SpringBoot Redis验证码内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
