前往小程序,Get更优阅读体验!
立即前往
首页
学习
活动
专区
工具
TVP
发布
社区首页 >专栏 >redis队列

redis队列

作者头像
阿超
发布2022-08-21 13:44:30
2420
发布2022-08-21 13:44:30
举报
文章被收录于专栏:快乐阿超快乐阿超

首先是配置类

分为Redis配置类和Jackson配置类,主要是用于收发消息时序列化

Jackson

代码语言:javascript
复制
package com.ruben.config;

import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
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;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;

/**
 * @author <achao1441470436@gmail.com>
 * @since 2022/5/8 18:43
 */
@Configuration
public class JacksonConfig {

    public static final String DATE_TIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
    public static final String DATE_PATTERN = "yyyy-MM-dd";


    @Bean
    public ObjectMapper objectMapper() {
        final ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);

        JavaTimeModule module = new JavaTimeModule();
        module.addSerializer(new LocalDateSerializer(DateTimeFormatter.ofPattern(DATE_PATTERN)));
        module.addSerializer(new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DATE_TIME_PATTERN)));
        module.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DATE_TIME_PATTERN)));
        module.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DATE_TIME_PATTERN)));
        objectMapper.registerModule(module);
        objectMapper.setDateFormat(new SimpleDateFormat(DATE_TIME_PATTERN));
        return objectMapper;
    }

    @Bean
    public Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer(ObjectMapper objectMapper) {
        final Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
        return jackson2JsonRedisSerializer;
    }
}

redis

代码语言:javascript
复制
package com.ruben.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.listener.ChannelTopic;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.data.redis.listener.adapter.MessageListenerAdapter;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

import com.ruben.listener.RedisMessageListener;

/**
 * @author <achao1441470436@gmail.com>
 * @since 2022/5/8 17:31
 */
@Configuration
public class RedisConfig {

    @Bean
    public RedisMessageListenerContainer redisMessageListenerContainer(RedisMessageListener listener, RedisConnectionFactory factory, Jackson2JsonRedisSerializer<Object> serializer) {
        final RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(factory);
        final MessageListenerAdapter adapter = new MessageListenerAdapter(listener, "onMessage");
        adapter.setSerializer(serializer);
        container.addMessageListener(adapter, new ChannelTopic("topic"));
        return container;
    }

}

然后是消息接收的Listener

代码语言:javascript
复制
package com.ruben.listener;

import java.util.HashMap;

import javax.annotation.Resource;

import org.springframework.data.redis.connection.Message;
import org.springframework.data.redis.connection.MessageListener;
import org.springframework.stereotype.Component;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import lombok.SneakyThrows;

/**
 * @author <achao1441470436@gmail.com>
 * @since 2022/5/8 15:52
 */
@Component
public class RedisMessageListener implements MessageListener {

    @Resource
    private ObjectMapper objectMapper;

    /**
     * Callback for processing received objects through Redis.
     *
     * @param message message must not be {@literal null}.
     * @param pattern pattern matching the channel (if specified) - can be {@literal null}.
     */
    @Override
    @SneakyThrows
    public void onMessage(Message message, byte[] pattern) {
        System.out.println("接收到消息:" + new String(message.getBody()));
    }
}

最后是发消息

代码语言:javascript
复制
package com.ruben;

import java.time.LocalDateTime;
import java.util.Collections;

import javax.annotation.Resource;

import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.StringRedisTemplate;

import com.fasterxml.jackson.databind.ObjectMapper;

import lombok.SneakyThrows;

@SpringBootTest
class SimpleRedisQueueApplicationTests {

    @Resource
    private StringRedisTemplate stringRedisTemplate;

    @Resource
    private ObjectMapper objectMapper;

    @Test
    @SneakyThrows
    void contextLoads() {
        stringRedisTemplate.convertAndSend("topic", objectMapper.writeValueAsString(Collections.singletonMap("time", LocalDateTime.now())));
    }

}

运行:

image-20220508203301775
image-20220508203301775

完整源码:

代码语言:javascript
复制
https://gitee.com/VampireAchao/simple-redis-queue.git
本文参与 腾讯云自媒体同步曝光计划,分享自作者个人站点/博客。
原始发表:2022-05-08,如有侵权请联系 cloudcommunity@tencent.com 删除

本文分享自 作者个人站点/博客 前往查看

如有侵权,请联系 cloudcommunity@tencent.com 删除。

本文参与 腾讯云自媒体同步曝光计划  ,欢迎热爱写作的你一起参与!

评论
登录后参与评论
0 条评论
热度
最新
推荐阅读
相关产品与服务
云数据库 Redis
腾讯云数据库 Redis(TencentDB for Redis)是腾讯云打造的兼容 Redis 协议的缓存和存储服务。丰富的数据结构能帮助您完成不同类型的业务场景开发。支持主从热备,提供自动容灾切换、数据备份、故障迁移、实例监控、在线扩容、数据回档等全套的数据库服务。
领券
问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档