CaptchaCacheServiceRedisImpl自动注入redisService的问题

[pengsasai]

不要使用自动注入，而是用private static final StringRedisTemplate stringRedisTemplate = SpringContextUtils .getBean("stringRedisTemplate", StringRedisTemplate.class);注入的方式，否则请求验证码会报npe

[wenkesong-li]

import com.xingyuv.captcha.properties.AjCaptchaProperties;
import com.xingyuv.captcha.service.CaptchaCacheService;
import com.xingyuv.captcha.service.impl.CaptchaServiceFactory;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;

import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 基于 Redis 实现验证码的存储
 *
 * @author wenkesong
 */
@Slf4j
@Configuration
@ConditionalOnProperty(name = AjCaptchaProperties.PREFIX + ".cache-type", havingValue = "redis")
public class RedisCaptchaServiceImpl implements CaptchaCacheService {

    @Resource
    private StringRedisTemplate stringRedisTemplate;

    @Override
    public String type() {
        return "redis";
    }

    @Override
    public void set(String key, String value, long expiresInSeconds) {
        stringRedisTemplate.opsForValue().set(key, value, expiresInSeconds, TimeUnit.SECONDS);
    }

    @Override
    public boolean exists(String key) {
        return Boolean.TRUE.equals(stringRedisTemplate.hasKey(key));
    }

    @Override
    public void delete(String key) {
        stringRedisTemplate.delete(key);
    }

    @Override
    public String get(String key) {
        return stringRedisTemplate.opsForValue().get(key);
    }

    @Override
    public Long increment(String key, long val) {
        return stringRedisTemplate.opsForValue().increment(key, val);
    }

    @Bean
    public CaptchaCacheService initRedisCaptchaCache() {
        log.info("初始化Redis验证码.....");
        Map<String, CaptchaCacheService> cacheService = CaptchaServiceFactory.cacheService;
        synchronized (cacheService) {
            cacheService.put("redis", this);
        }
        return this;
    }

}

[jymxx]

import com.xingyuv.captcha.properties.AjCaptchaProperties;
import com.xingyuv.captcha.service.CaptchaCacheService;
import com.xingyuv.captcha.service.impl.CaptchaServiceFactory;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;

import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 基于 Redis 实现验证码的存储
 *
 * @author wenkesong
 */
@Slf4j
@Configuration
@ConditionalOnProperty(name = AjCaptchaProperties.PREFIX + ".cache-type", havingValue = "redis")
public class RedisCaptchaServiceImpl implements CaptchaCacheService {

    @Resource
    private StringRedisTemplate stringRedisTemplate;

    @Override
    public String type() {
        return "redis";
    }

    @Override
    public void set(String key, String value, long expiresInSeconds) {
        stringRedisTemplate.opsForValue().set(key, value, expiresInSeconds, TimeUnit.SECONDS);
    }

    @Override
    public boolean exists(String key) {
        return Boolean.TRUE.equals(stringRedisTemplate.hasKey(key));
    }

    @Override
    public void delete(String key) {
        stringRedisTemplate.delete(key);
    }

    @Override
    public String get(String key) {
        return stringRedisTemplate.opsForValue().get(key);
    }

    @Override
    public Long increment(String key, long val) {
        return stringRedisTemplate.opsForValue().increment(key, val);
    }

    @Bean
    public CaptchaCacheService initRedisCaptchaCache() {
        log.info("初始化Redis验证码.....");
        Map<String, CaptchaCacheService> cacheService = CaptchaServiceFactory.cacheService;
        synchronized (cacheService) {
            cacheService.put("redis", this);
        }
        return this;
    }

}

默认设置下可以使用，但在开启接口请求次数限制时，captcha-plus的加载优先级总是比我的代码要高，导致limitHandler = new FrequencyLimitHandler.DefaultLimitHandler(config, getCacheService(cacheType));提前去获取了空的bean然后报错