动力节点RocketMQ笔记第三章RocketMQ集成SpringBoot-Toy模板网

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22. Rocketmq集成SpringBoot

22.1 搭建rocketmq-producer（消息生产者）

动力节点RocketMQ笔记第三章RocketMQ集成SpringBoot

22.1.1 创建项目，完整的pom.xml

 _<?_xml version="1.0" encoding="UTF-8"_?>_
<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 [https://maven.apache.org/xsd/maven-4.0.0.xsd"](https://maven.apache.org/xsd/maven-4.0.0.xsd%22)
>    
<modelVersion>4.0.0</modelVersion>    
<parent>        
<groupId>org.springframework.boot</groupId>        
<artifactId>spring-boot-starter-parent</artifactId>        
<version>2.6.3</version>        
<relativePath/> 
_<!-- lookup parent from repository -->    _
</parent>    
<groupId>com.powernode</groupId>    
<artifactId>01-rocketmq-producer</artifactId>    
<version>0.0.1-SNAPSHOT</version>    
<name>rocketmq-producer</name>    
<description>Demo project for Spring Boot</description>    
<properties>        
<java.version>1.8</java.version>    
</properties>    
<dependencies>        
<dependency>            
<groupId>org.springframework.boot</groupId>            
<artifactId>spring-boot-starter-web</artifactId>        
</dependency>**        **
**_<!-- rocketmq的依赖 -->        _**
**<dependency>            **
**<groupId>org.apache.rocketmq</groupId>            **
**<artifactId>rocketmq-spring-boot-starter</artifactId>            <version>2.0.2</version>        **
**</dependency> **        
<dependency>            
<groupId>org.projectlombok</groupId>            
<artifactId>lombok</artifactId>            
<optional>true</optional>       
</dependency>        
<dependency>            
<groupId>org.springframework.boot</groupId>            
<artifactId>spring-boot-starter-test</artifactId>            
<scope>test</scope>        
</dependency>    
</dependencies>     
<build>        
<plugins>            
<plugin>                
<groupId>org.springframework.boot</groupId>                
<artifactId>spring-boot-maven-plugin</artifactId>                
<configuration>                    
<excludes>                        
<exclude>                            
<groupId>org.projectlombok</groupId>
         <artifactId>lombok</artifactId>                        
</exclude>                    
</excludes>                
</configuration>            
</plugin>        
</plugins>    
</build> 
</project>

22.1.2 修改配置文件application.yml

spring:
    application:
        name: rocketmq-producer
rocketmq:
    name-server: 127.0.0.1:9876     # rocketMq的nameServer地址
    producer:
        group: powernode-group        # 生产者组别
        send-message-timeout: 3000  # 消息发送的超时时间
        retry-times-when-send-async-failed: 2  # 异步消息发送失败重试次数
        max-message-size: 4194304       # 消息的最大长度

22.1.3 我们在测试类里面测试发送消息

往powernode主题里面发送一个简单的字符串消息

 /** * 注入rocketMQTemplate，我们使用它来操作mq */
@Autowiredprivate RocketMQTemplate rocketMQTemplate; 
/** * 测试发送简单的消息 * * @throws Exception */
@Testpublic void testSimpleMsg() throws Exception {
       
// 往powernode的主题里面发送一个简单的字符串消息    
SendResult sendResult = rocketMQTemplate.syncSend("powernode", "我是一个简单的消息");   
 // 拿到消息的发送状态    
System._out_.println(sendResult.getSendStatus());    
// 拿到消息的id    
System._out_.println(sendResult.getMsgId());
}