Redis新手。cache配置类问题

Question

The constructor RedisCacheManager(RedisTemplate) is undefined

redis新手。第一次用。项目是Springboot

import java.lang.reflect.Method;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
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 com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;

@Configuration
@EnableCaching
public class RedisConfig  extends CachingConfigurerSupport{
     @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) {
                    //问题在这里
            RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
            rcm.setDefaultExpiration(60);//秒
            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;
        }
}

是包引错了么。还是这个写法不对。

 <dependency>  
    <groupId>org.springframework.boot</groupId>  
    <artifactId>spring-boot-starter-redis</artifactId>  
    <version>1.4.7.RELEASE</version>
</dependency>  

Answer 1

这个问题是由于使用了spring boot 2.0的问题，在spring boot 2.0中RedisCacheManager，没有

 @SuppressWarnings("rawtypes")
    public RedisCacheManager(RedisOperations redisOperations) {
        this(redisOperations, Collections.<String> emptyList());
    }

这个实现了。