spirngboot 配置redis

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本文详细介绍了如何在Spring Boot项目中引入并配置Redis，包括pom.xml依赖添加、yml配置文件设置、自定义RedisConfig类以及使用FastJson进行序列化操作。通过本教程，读者将学会使用RedisTemplate进行数据操作，并了解如何利用@Cacheable等注解实现缓存功能。

1.pom.xml引入redis

        <!--redis开始-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <!--redis结束-->

2.yml配置

redis:
    port: 6379
    host: 127.0.0.1
    database: 5

3.redis config

package cn.stylefeng.guns.redis;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author zhoujie
 * @version JDK1.8.0_171
 * @date on  2020/02/29 19:25
 * @description V1.0
 */
@Configuration
public class RedisConfig {
        @Bean
    public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(factory);
        //小范围白名单
//        ParserConfig.getGlobalInstance().addAccept("com.andy.framdemo.");
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        FastJsonRedisSerializer<Object> fastJsonRedisSerializer = new FastJsonRedisSerializer<>(Object.class);
        // key采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        // hash的key也采用String的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        // value序列化方式采用FastJSON的序列化方式
        template.setValueSerializer(fastJsonRedisSerializer);
        // hash的value序列化方式采用FastJSON的序列化方式
        template.setHashValueSerializer(fastJsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }

}

4.fastjson序列化

package cn.stylefeng.guns.redis;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import java.nio.charset.Charset;

/**
 *
 * @version JDK1.8.0_171
 * @description 序列化器
 */
public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {
    public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    private Class<T> clazz;

    public FastJsonRedisSerializer(Class<T> clazz) {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName,SerializerFeature.WriteNullStringAsEmpty, SerializerFeature.WriteMapNullValue,SerializerFeature.WriteNullListAsEmpty).getBytes(DEFAULT_CHARSET);
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length <= 0) {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);
        return (T) JSON.parseObject(str, clazz);
    }


}

后面可以使用redistemplate及@cacheable等注解做缓存

再附上windows的redis连接工具链接: https://pan.baidu.com/s/13saHZRdgbfFAGf8dYt8eKw 提取码: b3te