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  • 12、SpringBoot------activeMq的简单使用

    开发工具:STS

    前言:

      What is ActiveMq?

      ActiveMq:实现了Jms规范的一款Java 消息中间件。

      消息中间件:

        处理消息的一个消息机制,负责接收消息与转发。

        用途:

          (1)功能解耦,

          (2)高并发

          (3)简单的说,就是不太重要的资源,类似给用户发送邮件验证码之类的,我告诉它一下,我就返回到前端了,不在这里等你发送完,

              提高用户体验感。然后之后,消息中间件转发给专门负责发邮件的模块,发送邮件就可以了,节约了互联网资源。

    一、简单实例:

    1.pom依赖:

     1 <?xml version="1.0" encoding="UTF-8"?>
     2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     3     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     4     <modelVersion>4.0.0</modelVersion>
     5 
     6     <groupId>com.xm</groupId>
     7     <artifactId>springboot_jms</artifactId>
     8     <version>0.0.1-SNAPSHOT</version>
     9     <packaging>jar</packaging>
    10 
    11     <name>springboot_jms</name>
    12     <description>This is a Web about springcloud</description>
    13 
    14     <parent>
    15         <groupId>org.springframework.boot</groupId>
    16         <artifactId>spring-boot-starter-parent</artifactId>
    17         <version>1.5.14.RELEASE</version>
    18         <relativePath/> <!-- lookup parent from repository -->
    19     </parent>
    20 
    21     <properties>
    22         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    23         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    24         <java.version>1.8</java.version>
    25     </properties>
    26 
    27     <dependencies>
    28         <dependency>
    29             <groupId>org.springframework.boot</groupId>
    30             <artifactId>spring-boot-starter-activemq</artifactId>
    31         </dependency>
    32 
    33         <dependency>
    34             <groupId>org.springframework.boot</groupId>
    35             <artifactId>spring-boot-starter-test</artifactId>
    36             <scope>test</scope>
    37         </dependency>
    38     </dependencies>
    39 
    40     <build>
    41         <plugins>
    42             <plugin>
    43                 <groupId>org.springframework.boot</groupId>
    44                 <artifactId>spring-boot-maven-plugin</artifactId>
    45             </plugin>
    46         </plugins>
    47     </build>
    48 
    49 
    50 </project>

    2.配置文件:

    1 spring:
    2   activemq:
    3     broker-url: tcp://127.0.0.1:61617
    4     #发送Object需要开启,并且Object需要实现序列化接口
    5     packages:
    6       trust-all: true

    3.发送者:

     1 package com.xm.jms.query;
     2 
     3 
     4 import javax.jms.Destination;
     5 
     6 import org.springframework.beans.factory.annotation.Autowired;
     7 import org.springframework.jms.core.JmsMessagingTemplate;
     8 import org.springframework.stereotype.Service;
     9 
    10 import com.xm.jms.pojo.Student;
    11 
    12 @Service
    13 public class Producer {
    14     
    15     @Autowired
    16     private JmsMessagingTemplate template;
    17     
    18     public void sendMeseage(Destination destination) {
    19         
    20         Student s = new Student();
    21         s.setId(1);
    22         s.setName("郭小明");
    23         template.convertAndSend(destination,s);
    24         
    25     }
    26 
    27 }

    4.接收者:

     1 package com.xm.jms.query;
     2 
     3 import org.springframework.jms.annotation.JmsListener;
     4 import org.springframework.stereotype.Component;
     5 
     6 import com.xm.jms.pojo.Student;
     7 
     8 @Component
     9 public class Consumer {
    10     
    11     @JmsListener(destination = "queueText")
    12     public void getQuery(Student s) {
    13         System.out.println("收到一条消息:");
    14         System.out.println(s);
    15     }
    16 
    17 }

    5.测试类:

     1 package com.xm.jms;
     2 
     3 import javax.jms.Destination;
     4 import javax.jms.JMSException;
     5 
     6 import org.apache.activemq.command.ActiveMQObjectMessage;
     7 import org.apache.activemq.command.ActiveMQQueue;
     8 import org.junit.Test;
     9 import org.junit.runner.RunWith;
    10 import org.springframework.beans.factory.annotation.Autowired;
    11 import org.springframework.boot.test.context.SpringBootTest;
    12 import org.springframework.messaging.Message;
    13 import org.springframework.test.context.junit4.SpringRunner;
    14 
    15 import com.xm.jms.pojo.Student;
    16 import com.xm.jms.query.Producer;
    17 
    18 @RunWith(SpringRunner.class)
    19 @SpringBootTest
    20 public class SpringbootJmsApplicationTests {
    21     
    22     @Autowired
    23     private Producer producer;
    24 
    25     @Test
    26     public void contextLoads() throws JMSException {
    27         
    28         Destination destination = new  ActiveMQQueue("queueText");
    29         
    30         
    31             producer.sendMeseage(destination);
    32 
    33         
    34     }
    35 
    36 }

    二、开启ActiveMq

    1.docker容器中开启activemq:

    docker run -d:后台运行

    -p:端口映射

    --name:命名

    2.在浏览器中查看mq:

    默认账号、密码:admin、admin

    三、运行测试:

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  • 原文地址:https://www.cnblogs.com/TimerHotel/p/springboot12.html
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