Spring Boot @Value 在 @Bean 中为null的问题

import javax.servlet.Filter;
import java.util.*;
@Configuration
public class ShiroConfiguration {
    @Value("${spring.redis.host}")
    private String redisHost;
    @Value("${spring.redis.port}")
    private String redisPort;
    @Value("${spring.redis.password}")
    private String redisPassword;
    @Value("${spring.redis.database}")
    private Integer redisDatabase;
    @Value("${spring.redis.timeout}")
    private Integer redisTimeOut;
    @Bean
    public RedisManager redisManager(){
        RedisManager redisManager = new RedisManager();
        redisManager.setHost(redisConfig.getRedisHost() +":"+ redisConfig.getRedisPort());
        redisManager.setPassword(redisPassword);
        redisManager.setDatabase(RedisDatabase);
        redisManager.setTimeout(RedisTimeOut);
        return redisManager;
    }
}

import com.dataqin.web.config.IgnoredUrlsProperties;
import com.dataqin.web.config.RedisConfig;
@Configuration
public class ShiroConfiguration {
    @Bean
    public RedisManager redisManager(RedisConfig redisConfig){
        RedisManager redisManager = new RedisManager();
        redisManager.setHost(redisConfig.getRedisHost() +":"+ redisConfig.getRedisPort());
        redisManager.setPassword(redisConfig.getRedisPassword());
        redisManager.setDatabase(redisConfig.getRedisDatabase());
        redisManager.setTimeout(redisConfig.getRedisTimeOut());
        return redisManager;
    }
}

package com.dataqin.web.config;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
@Configuration
@Data
public class RedisConfig{
    @Value("${spring.redis.host}")
    private String redisHost;
    @Value("${spring.redis.port}")
    private String redisPort;
    @Value("${spring.redis.password}")
    private String redisPassword;
    @Value("${spring.redis.database}")
    private Integer redisDatabase;
    @Value("${spring.redis.timeout}")
    private Integer redisTimeOut;
}