【Spring Boot架构】Redis配置Fastjson进行序列化和反序列化

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本文链接： https://blog.csdn.net/sinat_27933301/article/details/102638698

FastJson是阿里开源的一个高性能的JSON框架，FastJson数据处理速度快，无论序列化（把JavaBean对象转化成Json格式的字符串）和反序列化（把JSON格式的字符串转化为Java Bean对象），都是当之无愧的fast；功能强大（支持普通JDK类，包括javaBean, Collection, Date 或者enum）；零依赖（没有依赖其他的任何类库）。

1、写一个自定义序列化类

/**
 * 自定义序列化类
 * @param <T>
 */
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 (null == t) {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }

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

}

2、写一个Redis配置类

@Configuration
public class RedisConfiguration {

    @Bean
    public RedisTemplate<Object, Object> redisTemplate(
            RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        //使用fastjson序列化
        FastJsonRedisSerializer fastJsonRedisSerializer = new FastJsonRedisSerializer(Object.class);
        // value值的序列化采用fastJsonRedisSerializer
        template.setValueSerializer(fastJsonRedisSerializer);
        template.setHashValueSerializer(fastJsonRedisSerializer);
        // key的序列化采用StringRedisSerializer
        template.setKeySerializer(new StringRedisSerializer());
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setConnectionFactory(redisConnectionFactory);
        return template;
    }
}

3、Student类

@Data
public class Student {
    private Integer studentId;
    private String studentName;
}

4、pom.xml引入redis和fastjson的依赖，application.yml配置文件别忘了配置Redis的地址。

5、BootRedisApplication启动类

@SpringBootApplication
public class BootRedisApplication {

    public static void main(String[] args) {
        ConfigurableApplicationContext
                context = SpringApplication.run(BootRedisApplication.class, args);
        
        Student student = new Student();
        student.setStudentId(101);
        student.setStudentName("学生A");
        
        RedisTemplate cRedisTemplate = context.getBean("redisTemplate", RedisTemplate.class);
        cRedisTemplate.opsForValue().set("student-1", student);

        context.close();
    }
}

6、查看Redis的数据

{"@type":"com.example.bootredis.Student","studentId":101,"studentName":"学生A"}