RabbitMQ整合Spring Booot【消费者补偿幂等问题】

素颜马尾好姑娘i 2022-12-08 04:27 78阅读 0赞

如果消费者 运行时候 报错了

package com.toov5.msg.SMS;
    
    import org.springframework.amqp.rabbit.annotation.RabbitHandler;
    import org.springframework.amqp.rabbit.annotation.RabbitListener;
    import org.springframework.stereotype.Component;
    
    @Component 
    @RabbitListener(queues="fanout_sms_queue")   
    public class SMSConsumer {
        
        @RabbitHandler  
       public void process(String mString) {
           System.out.println("短信消费者获取生产者消息msg"+mString);
           int i = 1/0;
       }
    }

当生产者投递消息后：

消费者会不停的进行打印:

![ba1e68811a1414fac6848e110b014ec8.png][]

消息一直没有被消费

![bc3c1333da5bc2ebc88654ce9fbce6b5.png][]

原因 Rabbitmq 默认情况下 如果消费者程序出现异常情况 会自动实现补偿机制  也就是 重试机制

@RabbitListener底层使用AOP进行拦截，如果程序没有抛出异常，自动提交事务。 如果Aop使用异常通知 拦截获取异常信息的话 ， 自动实现补偿机制，该消息会一直缓存在Rabbitmq服务器端进行重放，一直重试到不抛出异常为准。

可以修改重试策略

一般来说默认5s重试一次，

消费者配置：

listener:
          simple:
            retry:
            ####开启消费者重试
              enabled: true
             ####最大重试次数(默认无数次)
              max-attempts: 5
            ####重试间隔次数
              initial-interval: 3000

效果： 充实5次 不行就放弃了

![fe75addec6d3b2d08140d4698d2a7760.png][]

![8fb257dfb625d8d5a0856554527d2c18.png][]

MQ重试机制机制 需要注意的问题

#### 如何合适选择重试机制 ####

情况1:  消费者获取到消息后，调用第三方接口，但接口暂时无法访问，是否需要重试?

需要重试   别人的问题不是我自己的问题

情况2:  消费者获取到消息后，抛出数据转换异常，是否需要重试?

不需要重试   充实一亿次也是如此 木有必要  需要发布版本解决

**总结：**

*             对于情况2，如果消费者代码抛出异常是需要发布新版本才能解决的问题，那么不需要重试，重试也无济于事。应该采用 日志记录+定时任务job健康检查+人工进行补偿
 *             把错误记录在日志里面，通过定时Job去自动的补偿，或通过人工去补偿。

传统的HTTP请求 如果失败了没法自动重试 ，当然自己可以写个循环实现。MQ完全自己自带的。

情况2的拓展延申：

将之前的案例改为   邮件消费者 调用邮件第三方接口

**伪代码：**

在consumer 中 调用接口后 判断返回值  由于RabbitMQ 在消费者异常时候 会进行重试机制 进行补偿

所以可以抛出个异常 来实现

Consumer：

String result   =   template.Email();

if(result == null)\{

throw new Exception("调用第三方邮件服务器接口失败!");

producer：

![ffb1b094be957bbca3d2aea81956c260.png][]

pom:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>com.itmayiedu</groupId>
        <artifactId>rabbitmq_producer_springboot</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.0.RELEASE</version>
        </parent>
        <dependencies>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-amqp</artifactId>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.49</version>
            </dependency>
        </dependencies>
    </project>

config:

package com.itmayiedu.rabbitmq.config;
    
    import org.springframework.amqp.core.Binding;
    import org.springframework.amqp.core.BindingBuilder;
    import org.springframework.amqp.core.FanoutExchange;
    import org.springframework.amqp.core.Queue;
    import org.springframework.context.annotation.Bean;
    import org.springframework.stereotype.Component;
    
    //Fanout 类型 发布订阅模式
    @Component
    public class FanoutConfig {
    
        // 邮件队列
        private String FANOUT_EMAIL_QUEUE = "fanout_email_queue";
    
        // 短信队列
        private String FANOUT_SMS_QUEUE = "fanout_sms_queue";
        // fanout 交换机
        private String EXCHANGE_NAME = "fanoutExchange";
    
        // 1.定义邮件队列
        @Bean
        public Queue fanOutEamilQueue() {
            return new Queue(FANOUT_EMAIL_QUEUE);
        }
    
        // 2.定义短信队列
        @Bean
        public Queue fanOutSmsQueue() {
            return new Queue(FANOUT_SMS_QUEUE);
        }
    
        // 2.定义交换机
        @Bean
        FanoutExchange fanoutExchange() {
            return new FanoutExchange(EXCHANGE_NAME);
        }
    
        // 3.队列与交换机绑定邮件队列
        @Bean
        Binding bindingExchangeEamil(Queue fanOutEamilQueue, FanoutExchange fanoutExchange) {
            return BindingBuilder.bind(fanOutEamilQueue).to(fanoutExchange);
        }
    
        // 4.队列与交换机绑定短信队列
        @Bean
        Binding bindingExchangeSms(Queue fanOutSmsQueue, FanoutExchange fanoutExchange) {
            return BindingBuilder.bind(fanOutSmsQueue).to(fanoutExchange);
        }
    }

Producer:

package com.itmayiedu.rabbitmq;
    
    import java.util.UUID;
    
    import org.springframework.amqp.core.AmqpTemplate;
    import org.springframework.amqp.core.Message;
    import org.springframework.amqp.core.MessageBuilder;
    import org.springframework.amqp.core.MessageProperties;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import com.alibaba.fastjson.JSONObject;
    
    @Component
    public class FanoutProducer {
        @Autowired
        private AmqpTemplate amqpTemplate;
    
        public void send(String queueName) {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("email", "xx@163.com");
            jsonObject.put("timestamp", System.currentTimeMillis());
            String jsonString = jsonObject.toJSONString();
            System.out.println("jsonString:" + jsonString);
            // 设置消息唯一id 保证每次重试消息id唯一
            /*Message message = MessageBuilder.withBody(jsonString.getBytes())
                    .setContentType(MessageProperties.CONTENT_TYPE_JSON).setContentEncoding("utf-8")
                    .setMessageId(UUID.randomUUID() + "").build();*/
            amqpTemplate.convertAndSend(queueName, jsonString);
        }
    }

Controller:

package com.itmayiedu.controller;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import com.itmayiedu.rabbitmq.FanoutProducer;
    
    @RestController
    public class ProducerController {
        @Autowired
        private FanoutProducer fanoutProducer;
    
        @RequestMapping("/sendFanout")
        public String sendFanout(String queueName) {
            fanoutProducer.send(queueName);
            return "success";
        }
    }

yml:

spring:
      rabbitmq:
      ####连接地址
        host: 192.168.91.6
       ####端口号   
        port: 5672
       ####账号 
        username: admin
       ####密码  
        password: admin
       ### 地址
        virtual-host: /admin_toov5

启动类：

package com.itmayiedu;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    public class AppProducer {
    
        public static void main(String[] args) {
            SpringApplication.run(AppProducer.class, args);
        }
    
    }

Consumer：

pom:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>com.itmayiedu</groupId>
        <artifactId>rabbitmq_consumer_springboot</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.0.RELEASE</version>
        </parent>
        <dependencies>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-amqp</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-mail</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.49</version>
            </dependency>
    
        </dependencies>
    </project>

utils:

package com.itmayiedu.rabbitmq.utils;
    
    import com.alibaba.fastjson.JSONObject;
    import org.apache.http.HttpEntity;
    import org.apache.http.HttpStatus;
    import org.apache.http.client.config.RequestConfig;
    import org.apache.http.client.methods.CloseableHttpResponse;
    import org.apache.http.client.methods.HttpGet;
    import org.apache.http.client.methods.HttpPost;
    import org.apache.http.entity.StringEntity;
    import org.apache.http.impl.client.CloseableHttpClient;
    import org.apache.http.impl.client.HttpClients;
    import org.apache.http.util.EntityUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import java.io.IOException;
    
    /**
     * HttpClient4.3工具类
     * 
     * @author hang.luo
     */
    public class HttpClientUtils {
        private static Logger logger = LoggerFactory.getLogger(HttpClientUtils.class); // 日志记录
    
        private static RequestConfig requestConfig = null;
    
        static {
            // 设置请求和传输超时时间
            requestConfig = RequestConfig.custom().setSocketTimeout(2000).setConnectTimeout(2000).build();
        }
    
        /**
         * post请求传输json参数
         * 
         * @param url
         *            url地址
         * @param json
         *            参数
         * @return
         */
        public static JSONObject httpPost(String url, JSONObject jsonParam) {
            // post请求返回结果
            CloseableHttpClient httpClient = HttpClients.createDefault();
            JSONObject jsonResult = null;
            HttpPost httpPost = new HttpPost(url);
            // 设置请求和传输超时时间
            httpPost.setConfig(requestConfig);
            try {
                if (null != jsonParam) {
                    // 解决中文乱码问题
                    StringEntity entity = new StringEntity(jsonParam.toString(), "utf-8");
                    entity.setContentEncoding("UTF-8");
                    entity.setContentType("application/json");
                    httpPost.setEntity(entity);
                }
                CloseableHttpResponse result = httpClient.execute(httpPost);
                // 请求发送成功，并得到响应
                if (result.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                    String str = "";
                    try {
                        // 读取服务器返回过来的json字符串数据
                        str = EntityUtils.toString(result.getEntity(), "utf-8");
                        // 把json字符串转换成json对象
                        jsonResult = JSONObject.parseObject(str);
                    } catch (Exception e) {
                        logger.error("post请求提交失败:" + url, e);
                    }
                }
            } catch (IOException e) {
                logger.error("post请求提交失败:" + url, e);
            } finally {
                httpPost.releaseConnection();
            }
            return jsonResult;
        }
    
        /**
         * post请求传输String参数 例如：name=Jack&sex=1&type=2
         * Content-type:application/x-www-form-urlencoded
         * 
         * @param url
         *            url地址
         * @param strParam
         *            参数
         * @return
         */
        public static JSONObject httpPost(String url, String strParam) {
            // post请求返回结果
            CloseableHttpClient httpClient = HttpClients.createDefault();
            JSONObject jsonResult = null;
            HttpPost httpPost = new HttpPost(url);
            httpPost.setConfig(requestConfig);
            try {
                if (null != strParam) {
                    // 解决中文乱码问题
                    StringEntity entity = new StringEntity(strParam, "utf-8");
                    entity.setContentEncoding("UTF-8");
                    entity.setContentType("application/x-www-form-urlencoded");
                    httpPost.setEntity(entity);
                }
                CloseableHttpResponse result = httpClient.execute(httpPost);
                // 请求发送成功，并得到响应
                if (result.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                    String str = "";
                    try {
                        // 读取服务器返回过来的json字符串数据
                        str = EntityUtils.toString(result.getEntity(), "utf-8");
                        // 把json字符串转换成json对象
                        jsonResult = JSONObject.parseObject(str);
                    } catch (Exception e) {
                        logger.error("post请求提交失败:" + url, e);
                    }
                }
            } catch (IOException e) {
                logger.error("post请求提交失败:" + url, e);
            } finally {
                httpPost.releaseConnection();
            }
            return jsonResult;
        }
    
        /**
         * 发送get请求
         * 
         * @param url
         *            路径
         * @return
         */
        public static JSONObject httpGet(String url) {
            // get请求返回结果
            JSONObject jsonResult = null;
            CloseableHttpClient client = HttpClients.createDefault();
            // 发送get请求
            HttpGet request = new HttpGet(url);
            request.setConfig(requestConfig);
            try {
                CloseableHttpResponse response = client.execute(request);
    
                // 请求发送成功，并得到响应
                if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                    // 读取服务器返回过来的json字符串数据
                    HttpEntity entity = response.getEntity();
                    String strResult = EntityUtils.toString(entity, "utf-8");
                    // 把json字符串转换成json对象
                    jsonResult = JSONObject.parseObject(strResult);
                } else {
                    logger.error("get请求提交失败:" + url);
                }
            } catch (IOException e) {
                logger.error("get请求提交失败:" + url, e);
            } finally {
                request.releaseConnection();
            }
            return jsonResult;
        }
    
    }

consumer:

package com.itmayiedu.rabbitmq;
    
    import java.util.Map;
    
    import org.springframework.amqp.core.Message;
    import org.springframework.amqp.rabbit.annotation.RabbitListener;
    import org.springframework.amqp.support.AmqpHeaders;
    import org.springframework.messaging.handler.annotation.Headers;
    import org.springframework.stereotype.Component;
    
    import com.alibaba.fastjson.JSONObject;
    import com.itmayiedu.rabbitmq.utils.HttpClientUtils;
    import com.rabbitmq.client.Channel;
    
    //邮件队列
    @Component
    public class FanoutEamilConsumer {
         @RabbitListener(queues = "fanout_email_queue")
         public void process(String msg) throws Exception {
         System.out.println("邮件消费者获取生产者消息msg:" + msg);
         JSONObject jsonObject = JSONObject.parseObject(msg);
         // 获取email参数
         String email = jsonObject.getString("email");
         // 请求地址
         String emailUrl = "http://127.0.0.1:8083/sendEmail?email=" + email;
         JSONObject result = HttpClientUtils.httpGet(emailUrl);
         if (result == null) {
         // 因为网络原因,造成无法访问,继续重试
         throw new Exception("调用接口失败!");
         }
         System.out.println("执行结束....");
        
         }
    }

yml:

spring:
      rabbitmq:
      ####连接地址
        host: 192.168.91.6
       ####端口号   
        port: 5672
       ####账号 
        username: admin
       ####密码  
        password: admin
       ### 地址
        virtual-host: /admin_toov5
        listener: 
          simple:
            retry:
            ####开启消费者异常重试
              enabled: true
             ####最大重试次数
              max-attempts: 5
            ####重试间隔次数
              initial-interval: 2000
           
    
    server:
      port: 8081

启动类：

package com.itmayiedu.rabbitmq;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    public class AppConsumer {
    
        public static void main(String[] args) {
            SpringApplication.run(AppConsumer.class, args);
        }
    
    }

邮件服务器：

package com.mayikt.controller;
    
    import java.util.HashMap;
    import java.util.Map;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @SpringBootApplication
    @RestController
    public class MsgController {
    
        // 模拟第三方发送邮件
        @RequestMapping("/sendEmail")
        public Map<String, Object> sendEmail(String email) {
            System.out.println("开始发送邮件:" + email);
            Map<String, Object> result = new HashMap<String, Object>();
            result.put("code", "200");
            result.put("msg", "发送邮件成功..");
            System.out.println("发送邮件成功");
            return result;
        }
    
        public static void main(String[] args) {
            SpringApplication.run(MsgController.class, args);
        }
    
    }

yml:

server:
      port: 8083

pom:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>com.mayikt</groupId>
        <artifactId>mayikt_sms</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.0.RELEASE</version>
        </parent>
        <dependencies>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-amqp</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-mail</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.49</version>
            </dependency>
    
        </dependencies>
    </project>

在没有启动邮件服务器时候，消费者调用接口失败会一直重试，重试五次。

在此期间，如果启动成功，则重试成功，不再重试， 不再进行补偿机制。

#### 消费者如果保证消息幂等性，不被重复消费 ####

**背景：**

网络延迟传输中，或者消费出现异常或者是消费延迟，会造成进行MQ重试进行重试补偿机制，在重试过程中，可能会造成重复消费。

**解决办法:**

使用全局MessageID判断消费方使用同一个，解决幂等性。

只要重试过程中，判断如果已经走完了 不能再继续走 继续执行了

MQ消费者的幂等行的解决 一般使用全局ID  或者写个唯一标识比如时间戳   或者UUID  或者订单号

改进：

producer：

添加：

// 设置消息唯一id 保证每次重试消息id唯一  
            Message message = MessageBuilder.withBody(jsonString.getBytes())
                    .setContentType(MessageProperties.CONTENT_TYPE_JSON).setContentEncoding("utf-8")
                    .setMessageId(UUID.randomUUID() + "").build(); //消息id设置在请求头里面 用UUID做全局ID 
            amqpTemplate.convertAndSend(queueName, message);

全部代码：

package com.itmayiedu.rabbitmq;
    
    import java.util.UUID;
    
    import org.springframework.amqp.core.AmqpTemplate;
    import org.springframework.amqp.core.Message;
    import org.springframework.amqp.core.MessageBuilder;
    import org.springframework.amqp.core.MessageProperties;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import com.alibaba.fastjson.JSONObject;
    
    @Component
    public class FanoutProducer {
        @Autowired
        private AmqpTemplate amqpTemplate;
    
        public void send(String queueName) {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("email", "xx@163.com");
            jsonObject.put("timestamp", System.currentTimeMillis());
            String jsonString = jsonObject.toJSONString();
            System.out.println("jsonString:" + jsonString);
            // 设置消息唯一id 保证每次重试消息id唯一  
            Message message = MessageBuilder.withBody(jsonString.getBytes())
                    .setContentType(MessageProperties.CONTENT_TYPE_JSON).setContentEncoding("utf-8")
                    .setMessageId(UUID.randomUUID() + "").build(); //消息id设置在请求头里面 用UUID做全局ID 
            amqpTemplate.convertAndSend(queueName, message);
        }
    }

同样的 消费者也需要修改：

方法参数类型为 Message  然后可以获取这个ID 然后可以进行业务逻辑操作

@RabbitListener(queues = "fanout_email_queue")
         public void process(Message message) throws Exception {
         // 获取消息Id
         String messageId = message.getMessageProperties().getMessageId();  //id获取之
         String msg = new String(message.getBody(), "UTF-8"); //消息内容获取之
         System.out.println("-----邮件消费者获取生产者消息-----------------" + "messageId:" + messageId + ",消息内容:" +
         msg);
         if (messageId == null) {
                return;
            }
         JSONObject jsonObject = JSONObject.parseObject(msg);
         // 获取email参数
         String email = jsonObject.getString("email");
         // 请求地址
         String emailUrl = "http://127.0.0.1:8083/sendEmail?email=" + email;
         JSONObject result = HttpClientUtils.httpGet(emailUrl);
         if (result == null) {
         // 因为网络原因,造成无法访问,继续重试
         throw new Exception("调用接口失败!");
         }
         System.out.println("执行结束....");
         //messId 的情况写入到redis 中  成功就修改为空
         }

重试机制都是间隔性的  每次都是一个线程  单线程重试

** 关于应答模式：**

Spring boot 中进行 AOP拦截 自动帮助做重试

手动应答的话 ，如果不告诉服务器已经消费成功，则服务器不会删除 消息。告诉消费成功了才会删除。

消费者的yml加入：

acknowledge-mode: manual

开启模式之后：

消费者参数需要加入：  @Headers Map<String, Object> headers, Channel channel

代码逻辑最后面加入：

// // 手动ack
    Long deliveryTag = (Long) headers.get(AmqpHeaders.DELIVERY_TAG);
    // 手动签收  告诉RabbitMQ 消费成功了  消息可以删除了
    channel.basicAck(deliveryTag, false);

代码如下：

@RabbitListener(queues = "fanout_email_queue")
        public void process(Message message, @Headers Map<String, Object> headers, Channel channel) throws Exception {
            // 获取消息Id
            String messageId = message.getMessageProperties().getMessageId();
            String msg = new String(message.getBody(), "UTF-8");
            System.out.println("邮件消费者获取生产者消息" + "messageId:" + messageId + ",消息内容:" + msg);
            JSONObject jsonObject = JSONObject.parseObject(msg);
            // 获取email参数
            String email = jsonObject.getString("email");
            // 请求地址
            String emailUrl = "http://127.0.0.1:8083/sendEmail?email=" + email;
            JSONObject result = HttpClientUtils.httpGet(emailUrl);
            if (result == null) {
                // 因为网络原因,造成无法访问,继续重试
                throw new Exception("调用接口失败!");
            }
            // // 手动ack
            Long deliveryTag = (Long) headers.get(AmqpHeaders.DELIVERY_TAG);
            // 手动签收
            channel.basicAck(deliveryTag, false);
            System.out.println("执行结束....");
        }

[ba1e68811a1414fac6848e110b014ec8.png]: /images/20221123/f77e118480cc4d1995806b628009ac58.png
[bc3c1333da5bc2ebc88654ce9fbce6b5.png]: /images/20221123/2628a10c75484522a7610df9ed37b459.png
[fe75addec6d3b2d08140d4698d2a7760.png]: /images/20221123/6a8bf0cdf6ec4ec6a38c38c36e38ec75.png
[8fb257dfb625d8d5a0856554527d2c18.png]: /images/20221123/67d01139cf354cfe9186dba189419d18.png
[ffb1b094be957bbca3d2aea81956c260.png]: /images/20221123/08bb444014b74fbbbb48f23d76527859.png

RabbitMQ整合Spring Booot【消费者补偿幂等问题】

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