init
This commit is contained in:
shuhongfan
3
sl-express-mq/.gitignore
vendored
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3
sl-express-mq/.gitignore
vendored
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.idea
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target/
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*.iml
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126
sl-express-mq/README.md
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126
sl-express-mq/README.md
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# sl-express-mq使用手册
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## 1、说明
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为了将MQ的使用相关的代码进行统一，所以将发送消息的代码、消费者的配置抽取到sl-express-mq工程中。
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主要功能：
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- 为RabbitTemplate设置了ReturnsCallback，如果消息发送到交换机但是没有到达队列，会进行日志的记录。
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- 统一了配置了消息的消费，消费者如果处理消息失败，会进行重试，如果依然是失败的话，会将错误消息发送到error.queue队列，后续需要人工进行处理。
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- 统一了发送消息代码，如果网络等异常情况导致发送消息失败会进行重试，如果依然失败的话将消息内容持久化到mysql数据库，后续通过xxl-job任务进行重新发送；如果其他情况导致失败，不会进行重试，直接存储消息到mysql数据库中。
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## 2、SQL脚本
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错误消息记录的SQL脚本：
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~~~sql
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CREATE TABLE `sl_fail_msg` (
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`id` bigint NOT NULL,
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`msg_id` varchar(32) DEFAULT NULL COMMENT '消息id',
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`exchange` varchar(100) DEFAULT NULL COMMENT '交换机',
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`routing_key` varchar(50) DEFAULT NULL COMMENT '路由key',
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`msg` text COMMENT '消息内容',
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`reason` text CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci COMMENT '失败原因',
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`created` datetime DEFAULT NULL COMMENT '创建时间',
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`updated` datetime DEFAULT NULL COMMENT '更新时间',
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PRIMARY KEY (`id`),
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KEY `created` (`created`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci COMMENT='失败消息记录表';
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~~~
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## 3、使用
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### 3.1、导入依赖
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~~~xml
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<dependency>
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<groupId>com.sl-express.mq</groupId>
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<artifactId>sl-express-mq</artifactId>
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<version>1.0-SNAPSHOT</version>
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</dependency>
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~~~
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### 3.2、启动类增加@EnableRetry
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例如：
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~~~java
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package com.sl;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.openfeign.EnableFeignClients;
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import org.springframework.retry.annotation.EnableRetry;
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@EnableRetry //开启重试机制
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@EnableFeignClients
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@SpringBootApplication
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public class DispatchApplication {
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public static void main(String[] args) {
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SpringApplication.run(DispatchApplication.class, args);
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}
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}
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~~~
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### 3.3、编写配置
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在springboot的配置文件中bootstrap-*.yml修改配置：
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~~~yaml
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spring:
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rabbitmq: #mq的配置
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host: ${rabbitmq.host}
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port: ${rabbitmq.port}
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username: ${rabbitmq.username}
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password: ${rabbitmq.password}
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virtual-host: ${rabbitmq.virtual-host}
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publisher-confirm-type: correlated #发送消息的异步回调，记录消息是否发送成功
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publisher-returns: true #开启publish-return功能，消息到达交换机，但是没有到达对列表
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template:
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mandatory: true #消息路由失败时的策略, true: 调用ReturnCallback, false：丢弃消息
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listener:
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simple:
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acknowledge-mode: auto #，出现异常时返回nack，消息回滚到mq；没有异常，返回ack
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retry:
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enabled: true # 开启消费者失败重试
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initial-interval: 1000 # 初识的失败等待时长为1秒
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multiplier: 1 # 失败的等待时长倍数，下次等待时长 = multiplier * last-interval
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max-attempts: 3 # 最大重试次数
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stateless: true # true无状态；false有状态。如果业务中包含事务，这里改为false
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~~~
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### 3.4、使用
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~~~java
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//注入Service
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@Resource
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private MQService mqService;
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....................
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//发送消息
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this.mqService.sendMsg(exchange, null, msg);
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~~~
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> **消息的消费，依然是SpringBoot的写法。例如：**
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>
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> ~~~java
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> @Component
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> public class OrderMQListener {
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>
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> @RabbitListener(bindings = @QueueBinding(
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> value = @Queue(name = "${rabbitmq.order.queue}"),
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> exchange = @Exchange(name = "${rabbitmq.order.exchange}", type = ExchangeTypes.TOPIC),
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> key = "#"
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> ))
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> public void listenOrderMsg(String msg) {
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>
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> //此处编写业务逻辑
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>
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> }
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> }
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> ~~~
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45
sl-express-mq/pom.xml
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45
sl-express-mq/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<groupId>com.sl-express</groupId>
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<artifactId>sl-express-parent</artifactId>
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<version>1.4</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<version>1.1-SNAPSHOT</version>
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<groupId>com.sl-express.mq</groupId>
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<artifactId>sl-express-mq</artifactId>
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<description>mq微服务</description>
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<properties>
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<maven.compiler.source>11</maven.compiler.source>
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<maven.compiler.target>11</maven.compiler.target>
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<sl-express-common.version>1.2-SNAPSHOT</sl-express-common.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.sl-express.common</groupId>
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<artifactId>sl-express-common</artifactId>
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<version>${sl-express-common.version}</version>
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</dependency>
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<!--AMQP依赖，包含RabbitMQ-->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-amqp</artifactId>
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</dependency>
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<dependency>
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<groupId>com.xuxueli</groupId>
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<artifactId>xxl-job-core</artifactId>
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<version>2.3.0</version>
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</dependency>
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<!--Spring重试模块-->
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<dependency>
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<groupId>org.springframework.retry</groupId>
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<artifactId>spring-retry</artifactId>
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</dependency>
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</dependencies>
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</project>
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package com.sl.mq.config;
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import com.sl.transport.common.constant.Constants;
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import org.springframework.amqp.core.Binding;
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import org.springframework.amqp.core.BindingBuilder;
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import org.springframework.amqp.core.Queue;
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import org.springframework.amqp.core.TopicExchange;
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import org.springframework.amqp.rabbit.core.RabbitTemplate;
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import org.springframework.amqp.rabbit.retry.MessageRecoverer;
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import org.springframework.amqp.rabbit.retry.RepublishMessageRecoverer;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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@Configuration
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public class ErrorMessageConfig {
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@Value("${spring.application.name}") //获取微服务的名称
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private String appName;
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@Bean
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public TopicExchange errorMessageExchange() {
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//定义错误消息的交换机，类型为：topic
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return new TopicExchange(Constants.MQ.Exchanges.ERROR, true, false);
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}
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@Bean
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public Queue errorQueue() {
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//【前缀+微服务】名作为错误消息存放的队列名称，并且开启了持久化
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return new Queue(Constants.MQ.Queues.ERROR_PREFIX + appName, true);
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}
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@Bean
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public Binding errorBinding(Queue errorQueue, TopicExchange errorMessageExchange) {
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//完成绑定关系
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return BindingBuilder.bind(errorQueue).to(errorMessageExchange).with(appName);
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}
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@Bean
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public MessageRecoverer republishMessageRecoverer(RabbitTemplate rabbitTemplate) {
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//设置全部重试失败后进行重新发送消息，指定了交换机以及路由key
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//需要注意的是，路由key是应用名称，与上述的绑定关系中的路由key一致
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return new RepublishMessageRecoverer(rabbitTemplate, Constants.MQ.Exchanges.ERROR, appName);
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}
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}
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package com.sl.mq.config;
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import cn.hutool.core.util.StrUtil;
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import com.sl.transport.common.constant.Constants;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.amqp.rabbit.core.RabbitTemplate;
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import org.springframework.beans.BeansException;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.context.annotation.Configuration;
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@Slf4j
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@Configuration
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public class MessageConfig implements ApplicationContextAware {
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/**
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* 发送者回执 没有路由到队列的情况
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*
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* @param applicationContext 应用上下文
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* @throws BeansException 异常
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*/
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@Override
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public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
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// 获取RabbitTemplate
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RabbitTemplate rabbitTemplate = applicationContext.getBean(RabbitTemplate.class);
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// 设置ReturnCallback
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rabbitTemplate.setReturnsCallback(message -> {
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if (StrUtil.contains(message.getExchange(), Constants.MQ.DELAYED_KEYWORD)) {
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//延迟消息没有发到队列是正常情况，无需记录日志
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return;
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}
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// 投递失败，记录日志
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log.error("消息没有投递到队列，应答码：{}，原因：{}，交换机：{}，路由键：{},消息：{}",
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message.getReplyCode(), message.getReplyText(), message.getExchange(), message.getRoutingKey(), message.getMessage());
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});
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}
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}
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@@ -0,0 +1,29 @@
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package com.sl.mq.entity;
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import com.baomidou.mybatisplus.annotation.TableName;
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import com.sl.transport.common.entity.BaseEntity;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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|
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/**
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* 失败消息记录表
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*
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* @author zzj
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* @version 1.0
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*/
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@Data
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@Builder
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@NoArgsConstructor
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@AllArgsConstructor
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@TableName("sl_fail_msg")
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public class FailMsgEntity extends BaseEntity {
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private String msgId; //消息id
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private String exchange; //交换机
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private String routingKey; //路由key
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private String msg; //消息内容
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private String reason; //失败原因
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}
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@@ -0,0 +1,21 @@
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package com.sl.mq.exception;
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import com.sl.mq.entity.FailMsgEntity;
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import lombok.AllArgsConstructor;
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||||
import lombok.Builder;
|
||||
import lombok.Data;
|
||||
import lombok.NoArgsConstructor;
|
||||
|
||||
/**
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* @author zzj
|
||||
* @version 1.0
|
||||
*/
|
||||
@Data
|
||||
@NoArgsConstructor
|
||||
@AllArgsConstructor
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@Builder
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||||
public class MsgException extends RuntimeException {
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||||
|
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private FailMsgEntity failMsgEntity;
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||||
|
||||
}
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54
sl-express-mq/src/main/java/com/sl/mq/job/FailMsgJob.java
Normal file
54
sl-express-mq/src/main/java/com/sl/mq/job/FailMsgJob.java
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package com.sl.mq.job;
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import cn.hutool.core.collection.CollUtil;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.sl.mq.entity.FailMsgEntity;
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import com.sl.mq.service.FailMsgService;
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import com.sl.mq.service.MQService;
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import com.xxl.job.core.handler.annotation.XxlJob;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
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||||
import org.springframework.stereotype.Component;
|
||||
|
||||
import javax.annotation.Resource;
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import java.util.List;
|
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|
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/**
|
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* 失败消息的处理任务
|
||||
*
|
||||
* @author zzj
|
||||
* @version 1.0
|
||||
*/
|
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@Slf4j
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||||
@Component
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||||
@ConditionalOnBean({MQService.class, FailMsgService.class})
|
||||
public class FailMsgJob {
|
||||
|
||||
@Resource
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||||
private FailMsgService failMsgService;
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||||
@Resource
|
||||
private MQService mqService;
|
||||
|
||||
@XxlJob("failMsgJob")
|
||||
public void execute() {
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||||
//查询失败的数据，每次最多处理100条错误消息
|
||||
LambdaQueryWrapper<FailMsgEntity> queryWrapper = new LambdaQueryWrapper<FailMsgEntity>()
|
||||
.orderByAsc(FailMsgEntity::getCreated)
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||||
.last("limit 100");
|
||||
List<FailMsgEntity> failMsgEntityList = this.failMsgService.list(queryWrapper);
|
||||
if (CollUtil.isEmpty(failMsgEntityList)) {
|
||||
return;
|
||||
}
|
||||
|
||||
for (FailMsgEntity failMsgEntity : failMsgEntityList) {
|
||||
try {
|
||||
//发送消息
|
||||
this.mqService.sendMsg(failMsgEntity.getExchange(), failMsgEntity.getRoutingKey(), failMsgEntity.getMsg());
|
||||
//删除数据
|
||||
this.failMsgService.removeById(failMsgEntity.getId());
|
||||
} catch (Exception e) {
|
||||
log.error("处理错误消息失败, failMsgEntity = {}", failMsgEntity);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,15 @@
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||||
package com.sl.mq.mapper;
|
||||
|
||||
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
|
||||
import com.sl.mq.entity.FailMsgEntity;
|
||||
import org.apache.ibatis.annotations.Mapper;
|
||||
|
||||
/**
|
||||
* 失败消息记录mapper
|
||||
*
|
||||
* @author zzj
|
||||
* @version 1.0
|
||||
*/
|
||||
@Mapper
|
||||
public interface FailMsgMapper extends BaseMapper<FailMsgEntity> {
|
||||
}
|
||||
@@ -0,0 +1,13 @@
|
||||
package com.sl.mq.service;
|
||||
|
||||
import com.baomidou.mybatisplus.extension.service.IService;
|
||||
import com.sl.mq.entity.FailMsgEntity;
|
||||
|
||||
/**
|
||||
* 失败消息处理服务
|
||||
*
|
||||
* @author zzj
|
||||
* @version 1.0
|
||||
*/
|
||||
public interface FailMsgService extends IService<FailMsgEntity> {
|
||||
}
|
||||
31
sl-express-mq/src/main/java/com/sl/mq/service/MQService.java
Normal file
31
sl-express-mq/src/main/java/com/sl/mq/service/MQService.java
Normal file
@@ -0,0 +1,31 @@
|
||||
package com.sl.mq.service;
|
||||
|
||||
/**
|
||||
* 消息处理类
|
||||
*
|
||||
* @author zzj
|
||||
* @version 1.0
|
||||
*/
|
||||
public interface MQService {
|
||||
|
||||
/**
|
||||
* 发送实时消息
|
||||
*
|
||||
* @param exchange 交换机
|
||||
* @param routingKey 路由key
|
||||
* @param msg 消息对象，会将对象序列化成json字符串发出
|
||||
* @return 是否成功
|
||||
*/
|
||||
Boolean sendMsg(String exchange, String routingKey, Object msg);
|
||||
|
||||
/**
|
||||
* 发送延迟消息
|
||||
*
|
||||
* @param exchange 交换机
|
||||
* @param routingKey 路由key
|
||||
* @param msg 消息对象，会将对象序列化成json字符串发出
|
||||
* @param delay 延时时间，单位：毫秒
|
||||
* @return 是否成功
|
||||
*/
|
||||
Boolean sendMsg(String exchange, String routingKey, Object msg, int delay);
|
||||
}
|
||||
@@ -0,0 +1,21 @@
|
||||
package com.sl.mq.service.impl;
|
||||
|
||||
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
|
||||
import com.sl.mq.entity.FailMsgEntity;
|
||||
import com.sl.mq.mapper.FailMsgMapper;
|
||||
import com.sl.mq.service.FailMsgService;
|
||||
import com.sl.mq.service.MQService;
|
||||
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
|
||||
import org.springframework.stereotype.Service;
|
||||
|
||||
/**
|
||||
* 失败消息处理服务
|
||||
*
|
||||
* @author zzj
|
||||
* @version 1.0
|
||||
*/
|
||||
@Service
|
||||
@ConditionalOnBean(MQService.class)
|
||||
public class FailMsgServiceImpl extends ServiceImpl<FailMsgMapper, FailMsgEntity>
|
||||
implements FailMsgService {
|
||||
}
|
||||
@@ -0,0 +1,135 @@
|
||||
package com.sl.mq.service.impl;
|
||||
|
||||
import cn.hutool.core.exceptions.ExceptionUtil;
|
||||
import cn.hutool.core.util.CharsetUtil;
|
||||
import cn.hutool.core.util.IdUtil;
|
||||
import cn.hutool.core.util.StrUtil;
|
||||
import cn.hutool.json.JSONUtil;
|
||||
import com.sl.mq.entity.FailMsgEntity;
|
||||
import com.sl.mq.exception.MsgException;
|
||||
import com.sl.mq.service.FailMsgService;
|
||||
import com.sl.mq.service.MQService;
|
||||
import com.sl.transport.common.constant.Constants;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
import org.springframework.amqp.core.Message;
|
||||
import org.springframework.amqp.core.MessageBuilder;
|
||||
import org.springframework.amqp.core.MessageDeliveryMode;
|
||||
import org.springframework.amqp.rabbit.connection.CorrelationData;
|
||||
import org.springframework.amqp.rabbit.core.RabbitTemplate;
|
||||
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
|
||||
import org.springframework.retry.annotation.Backoff;
|
||||
import org.springframework.retry.annotation.Recover;
|
||||
import org.springframework.retry.annotation.Retryable;
|
||||
import org.springframework.stereotype.Service;
|
||||
|
||||
import javax.annotation.Resource;
|
||||
|
||||
/**
|
||||
* 消息处理类
|
||||
*
|
||||
* @author zzj
|
||||
* @version 1.0
|
||||
*/
|
||||
@Slf4j
|
||||
@Service
|
||||
//设置初始化条件，只有在配置文件中设置sl.mq.enable=true才能触发
|
||||
@ConditionalOnProperty(prefix = "sl.mq", value = "enable")
|
||||
public class MQServiceImpl implements MQService {
|
||||
|
||||
@Resource
|
||||
private RabbitTemplate rabbitTemplate;
|
||||
@Resource
|
||||
private FailMsgService failMsgService;
|
||||
|
||||
/**
|
||||
* 发送消息 重试3次
|
||||
*
|
||||
* @param exchange 交换机
|
||||
* @param routingKey 路由key
|
||||
* @param msg 消息对象，会将对象序列化成json字符串发出
|
||||
* @return 是否发送成功
|
||||
*/
|
||||
@Retryable(value = MsgException.class, maxAttempts = 3, backoff = @Backoff(value = 3000, multiplier = 1.5))
|
||||
@Override
|
||||
public Boolean sendMsg(String exchange, String routingKey, Object msg) {
|
||||
// 实时发送
|
||||
return this.sendMsg(exchange, routingKey, msg, Constants.MQ.DEFAULT_DELAY);
|
||||
}
|
||||
|
||||
@Retryable(value = MsgException.class, maxAttempts = 3, backoff = @Backoff(value = 3000, multiplier = 1.5))
|
||||
@Override
|
||||
public Boolean sendMsg(String exchange, String routingKey, Object msg, int delay) {
|
||||
// 1.获取消息内容，如果非字符串将其序列化
|
||||
String jsonMsg = (msg instanceof String) ? (String) msg : JSONUtil.toJsonStr(msg);
|
||||
String msgId = IdUtil.simpleUUID();
|
||||
log.info("消息发送！exchange = {}, routingKey = {}, msg = {}, msgId = {}", exchange, routingKey, jsonMsg, msgId);
|
||||
// 2.全局唯一的消息ID，需要封装到CorrelationData中
|
||||
CorrelationData correlationData = new CorrelationData(msgId);
|
||||
// 3.添加callback
|
||||
correlationData.getFuture().addCallback(
|
||||
result -> {
|
||||
if (result.isAck()) {
|
||||
// 3.1.ack，消息成功
|
||||
log.debug("消息发送成功, ID:{}", correlationData.getId());
|
||||
} else {
|
||||
// 3.2.nack，消息失败
|
||||
log.error("消息发送失败, ID:{}, 原因:{}", correlationData.getId(), result.getReason());
|
||||
FailMsgEntity failMsgEntity = FailMsgEntity.builder()
|
||||
.exchange(exchange)
|
||||
.msgId(correlationData.getId())
|
||||
.msg(jsonMsg)
|
||||
.reason(result.getReason()).build();
|
||||
this.failMsgService.save(failMsgEntity);
|
||||
}
|
||||
},
|
||||
ex -> {
|
||||
//出现此异常情况，可能是发送消息后无法连接到发送者或其他一些未知的异常情况
|
||||
String exceptionInfo = ExceptionUtil.getMessage(ex);
|
||||
log.error("消息发送异常, ID:{}, 原因:{}", correlationData.getId(), exceptionInfo);
|
||||
FailMsgEntity failMsgEntity = FailMsgEntity.builder()
|
||||
.exchange(exchange)
|
||||
.msgId(correlationData.getId())
|
||||
.msg(jsonMsg)
|
||||
.reason(exceptionInfo).build();
|
||||
this.failMsgService.save(failMsgEntity);
|
||||
}
|
||||
);
|
||||
// 4.构造消息对象
|
||||
Message message = MessageBuilder.withBody(StrUtil.bytes(jsonMsg, CharsetUtil.CHARSET_UTF_8))
|
||||
.setDeliveryMode(MessageDeliveryMode.PERSISTENT) //持久化
|
||||
.build();
|
||||
|
||||
try {
|
||||
// 5.发送消息
|
||||
this.rabbitTemplate.convertAndSend(exchange, routingKey, message, messagePostProcessor -> {
|
||||
//设置延时发送时间，delay小于0，实时发送
|
||||
messagePostProcessor.getMessageProperties().setDelay(delay);
|
||||
return messagePostProcessor;
|
||||
}, correlationData);
|
||||
} catch (Exception e) {
|
||||
//出现异常，这里将异常转化为自定义异常MsgException，主要是为了触发重试机制
|
||||
throw MsgException.builder()
|
||||
.failMsgEntity(FailMsgEntity.builder()
|
||||
.exchange(exchange)
|
||||
.msgId(correlationData.getId())
|
||||
.msg(jsonMsg)
|
||||
.reason(ExceptionUtil.getMessage(e)).build())
|
||||
.build();
|
||||
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* 3次失败后 存入数据库
|
||||
*
|
||||
* @param msgException 失败消息
|
||||
*/
|
||||
@Recover
|
||||
public Boolean saveFailMag(MsgException msgException) {
|
||||
//发送消息失败，需要将消息持久化到数据库，通过任务调度的方式处理失败的消息
|
||||
this.failMsgService.save(msgException.getFailMsgEntity());
|
||||
return true;
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user