Springboot整合redis非常簡單，如下，作者指出一種簡單的實現方式

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching
 
;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
 
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import java.lang.reflect.Method;
@Configuration
@EnableCaching
public class DspRedisConfig {

    @Bean
 
public KeyGenerator keyGenerator() {
        return new KeyGenerator() {
            @Override
public Object generate(Object target, Method method, Object... params) {
                StringBuilder sb = new StringBuilder();
sb.append(target.getClass().getName());
sb.append(method.getName());
                for (Object obj : params) {
                sb.append(obj.toString());
}
                return sb.toString();
}
        };
}

    @SuppressWarnings("rawtypes")
    @Bean
public CacheManager cacheManager(RedisTemplate redisTemplate) {
        RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
//設定快取過期時間，對通過redisTemplate操作的redis無效
        //rcm.setDefaultExpiration(300);
return rcm;
}

    @Bean
public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
        StringRedisTemplate template = new StringRedisTemplate(factory);
Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
ObjectMapper om = new ObjectMapper();
om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
template.setValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
        return template;
}
}

springboot核心的application檔案新增如下配置

spring.redis.host = localhost
spring.redis.port = 6379
spring.redis.pool.max-active = 20
spring.redis.pool.max-idle = 5
spring.redis.pool.min-idle = 0
spring.redis.pool.max-wait = 10000

這樣就可以通過註解方式操作我們要快取的資料了

但是當我們想要獨自去操作redisTemplete時，直接使用redisTemplete快取資料時無效

作者修改程式碼如下，即可隨意操作redis，過期時間在這裡設定是管用的~~~~~~~~~

我設定的24小時過期的token~~~~~~~~~~~~~~~~~

package com.nox.dsp.utils;
import com.nox.dsp.config.DspErrorConstant;
import com.nox.dsp.config.DspServerConstant;
import com.nox.dsp.entity.DspException;
import com.nox.dsp.entity.DspResponseEntity;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
@Service("tokenManager")
public class TokenManager {

    private static Logger logger = LogManager
            .getLogger(TokenManager.class.getName());
@Autowired
public  RedisTemplate redisTemplate;
    public boolean genUserToken(DspResponseEntity repEntity) throws DspException {
        boolean isOk = false;
        try {
            if (!DspServerConstant.TOKEN_IS_CHECK) {
                return true;
}
            String userToken = UUID.randomUUID().toString().replace("-", "");
String fullToken = DspServerConstant.TOKEN_PREFIX + "_" + repEntity.getCasEntity().getUid() + "_" + userToken;
repEntity.getCasEntity().setUserToken(userToken);
redisTemplate.opsForValue().set(fullToken ,DspServerConstant.TOKEN_VALUE);
redisTemplate.expire(fullToken , 24*60*60 , TimeUnit.SECONDS);
isOk = true;
} catch (Exception e) {
            isOk = false;
e.printStackTrace();
            throw new DspException(DspErrorConstant.ERROR_100005, DspErrorConstant.ERROR_100005_MSG);
}
        return isOk;
}

    public Boolean checkUserToken(String uid, String userToken) {
        if (!DspServerConstant.TOKEN_IS_CHECK) {
            return true;
} else if (uid == null || userToken == null) {
            return false;
} else {
            String fullToken = DspServerConstant.TOKEN_PREFIX + "_" + uid + "_" + userToken;
System.out.println(fullToken);
Object value = redisTemplate.opsForValue().get(fullToken);
            if(value != null && value.equals("1")){
                redisTemplate.delete(fullToken);
                return true;
}
            return false;
}
    }
}