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README
Apache-2.0

简介

目的在于简化Rocketmq生产和消费的启动流程,通过相关配置以及注解就可以做到消息发送和消费,包含以下功能:

生产者:

  • 同步消息
  • 异步消息
  • 单向消息
  • 顺序消息
  • 事务消息

消费者:

  • 普通消息消费
  • 顺序消息消费

使用说明

生产者

  • 普通消息
    1. 配置文件中配置:
rocket-mq:
  producer:
    enabled: true
    # 生产者namesrv全局配置
    namesrv-addr: xxxxxx
    default-mq-producer-configs:
      # namesrvAddr这里也可以单独配置以这个为准优先级高
      - namesrvAddr: xxxxxx
        producerGroup: TEST_GROUP_1
      # 可选配置如下
#        retryTimesWhenSendFailed: 3  重试次数 默认3次
#        sendMsgTimeout: 5000         超时时长单位毫秒  默认5s
      # 可以配置多个
      # namesrvAddr这里也可以不配置则上面全局的为准两者必配一个
      - producerGroup: TEST_GROUP_2
  1. 在需要发消息的地方,引入即可使用
// 使用自定义注解引入,非spring注解,而且需要说明是哪个生产者
@RocketResource(producerGroup = "TEST_GROUP_1")
private RocketMqProducer rocketMqProducer1;

@RocketResource(producerGroup = "TEST_GROUP_2")
private RocketMqProducer rocketMqProducer2;
  1. 消息发送
// 同步发送
rocketMqProducer1.syncProducerSend("TOPIC","Hello Mq!");
// 异步发送
rocketMqProducer1.asyncProducerSend("TOPIC","Hello Mq!");
// 单向发送
rocketMqProducer1.oneWayProducerSend("TOPIC","Hello Mq!");
// 同步顺序消息
rocketMqProducer1.syncProducerOrderSend("TOPIC","tag","Hello Mq!","选择队列的Key");
// 异步顺序消息
rocketMqProducer1.asyncProducerOrderSend("TOPIC","tag","Hello Mq!","选择队列的Key");
  1. 启动成功可以看到日志: 输入图片说明
  • 事务消息
    1. 大体上与普通消息一致,配置只需要加上是否支持事务:
rocket-mq:
  producer:
    enabled: true
    # 生产者namesrv全局配置
    namesrv-addr: xxxx
    default-mq-producer-configs:
      # namesrvAddr这里也可以单独配置以这个为准优先级高
      - namesrvAddr: xxxx
        producerGroup: TEST_GROUP_1
      # 可选配置如下
#        retryTimesWhenSendFailed: 3  重试次数 默认3次
#        sendMsgTimeout: 5000         超时时长单位毫秒  默认5s
      # 可以配置多个
      # namesrvAddr这里也可以不配置则上面全局的为准两者必配一个
      - producerGroup: TEST_GROUP_2
        # 是否是事务生产者  默认不是事务生产者可以发送事务消息
        supportTransaction: true
  1. 在需要发消息的地方,引入即可使用(注意事务和非事务的区分)
// 使用自定义注解引入,非spring注解,而且需要说明是哪个生产者
// 非事务生产者
@RocketResource(producerGroup = "TEST_GROUP_1")
private RocketMqProducer rocketMqProducer1;

// 事务生产者
@RocketResource(producerGroup = "TEST_GROUP_2")
private RocketMqTransactionProducer rocketMqProducer2;
  1. 添加事务监听器,实现RocketMqTransactionHandler接口,并打上自定义事务注解@RocketTransactionHandler
@Slf4j
@RocketTransactionHandler(producerGroup = "TEST_GROUP_2")
public class TransactionHandler implements RocketMqTransactionHandler {
    // 一样受spring容器管理,可以自己注入逻辑处理
    @Resource
    private BeanTest beanTest;

    // 事务处理逻辑,这里的arg参数就是发送消息时的最后那个Object参数
    @Override
    public LocalTransactionState executeLocalTransaction(Message msg, Object arg) {
        log.info("msg: {} ,arg: {} ", JSON.toJSON(new String(msg.getBody(), StandardCharsets.UTF_8)),arg);
        return LocalTransactionState.UNKNOW;
    }

    // 事务的回查处理逻辑
    @Override
    public LocalTransactionState checkLocalTransaction(MessageExt msg) {
        log.info("失败回查,然后成功");
        return LocalTransactionState.COMMIT_MESSAGE;
    }
}
  1. 发送事务消息
rocketMqProducer2.transactionProducerSend("TOPIC","*","Hello Mq!" , null);
  1. 结果

    输入图片说明

消费者

  • 普通消费/顺序消费

    1. 配置开启,这个地址是消费者全局配置
rocket-mq:
  consumer:
    enabled: true
    namesrv-addr: xxxxx
  1. 消费者实现RocketMqMsgHandler接口,打上自定义注解@RocketMqConsumerHandler
@Slf4j
@RocketMqConsumerHandler(consumerGroup = "TEST_GROUP",subscribes = {@RocketMqSubscribes( topic = "TOPIC")})
public class RocketMqTestHandler implements RocketMqMsgHandler {


    @Override
    public boolean beforeMsgHandler(MessageExt msg) {
        log.info("信息前置,可以做比如:日志收集、幂等校验等,返回值说明:true:代表通过会执行下面的消息处理 false:代表拦截直接返回消费成功");
        return true;
    }

    @Override
    public boolean msgDataHandler(MessageExt msg) {
        log.info("消息处理,消息:{} ,返回:true:代表消息处理成功会执行下面后置处理  false:代表执行失败会进行消息重试", JSON.toJSON(new String(msg.getBody(), StandardCharsets.UTF_8)));
        return true;
    }

    @Override
    public void afterMsgHandler(MessageExt msg) {
        log.info("消息后置处理,可以在消息处理成功后做一些操作");
    }

    @Override
    public boolean exceptionMsgHandler(MessageExt msg,Exception e) {
        log.info("消息异常处理,异常:{} {},返回:true:消息会进行重试  false:消息不重试",e.getMessage(),e);
        return false;
    }

    @Override
    public void finallyMsgHandler(MessageExt msg) {
        log.info("一定会执行的");
    }
}
  1. 这样消费者就已经完成了,看下结果(同样启动成功后,会看到日志)

    输入图片说明

  2. 看下注解说明@RocketMqConsumerHandler

    /**
     * namesrvAddr 地址 不填则以配置文件为准
     **/
    String namesrvAddr() default "";
    /**
     * 消费组名称
     **/
    String consumerGroup();

    /**
     * 订阅关系 topic 、tag
     **/
    RocketMqSubscribes[] subscribes();

    /**
     * 消费开启最小线程数  默认20
     **/
    int consumeThreadMin() default 20;

    /**
     * 消费开启最大线程数  默认20
     **/
    int consumeThreadMax() default 20;
    /**
     * 批量消费最大条数 默认1条
     **/
    int consumeMessageBatchMaxSize() default 1;
    /**
     * 一次从broker拉取消息条数 默认32条
     **/
    int pullBatchSize() default 32;
    /**
     * 消费超时时间 单位:分钟 默认15分钟
     **/
    int consumeTimeout() default 15;
    /**
     * 消费失败最大重试次数 默认16次
     **/
    int maxReconsumeTimes() default 16;
    /**
     * 是否顺序消费
     **/
    boolean isOrderConsumer() default false;
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简介

目的在于简化Rocketmq生产和消费的启动流程,通过相关配置以及注解就可以做到消息发送和消费 展开 收起
Java
Apache-2.0
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