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springcloud教程第8篇:spring cloud bu

springcloud教程第8篇:spring cloud bu

作者: Juntech | 来源:发表于2019-09-28 23:43 被阅读0次

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    Spring Cloud Bus 将分布式的节点用轻量的消息代理连接起来。它可以用于广播配置文件的更改或者服务之间的通讯,也可以用于监控。本文要讲述的是用Spring Cloud Bus实现通知微服务架构的配置文件的更改。

    一、准备工作

    按照官方文档,我们只需要在配置文件中配置 spring-cloud-starter-bus-amqp ;这就是说我们需要装rabbitMq,点击rabbitmq下载。

    二、改造config-client

    在pom文件加上起步依赖spring-cloud-starter-bus-amqp,完整的配置文件如下:

    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">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.7.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
        <groupId>top.juntech</groupId>
        <artifactId>springcloud-config-client</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>springcloud-config-client</name>
        <description>Demo project for Spring Boot</description>
    
        <properties>
            <java.version>1.8</java.version>
            <spring-cloud.version>Greenwich.SR2</spring-cloud.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
                <version>2.0.2.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
                <version>2.1.6.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-bus-amqp</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-config</artifactId>
            </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>
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>${spring-cloud.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>
    

    在配置文件application.properties中加上RabbitMq的配置,包括RabbitMq的地址、端口,用户名、密码,代码如下:

    spring:
      application:
        name: config-client
      profiles:
        active: dev
      cloud:
        config:
          uri: http://localhost:8763
      rabbitmq:
        host: localhost
        port: 5672
        username:
        password: 
    

    如果rabbitmq有用户名密码,输入即可。

    依次启动eureka-server、confg-cserver,启动两个config-client,端口为:10007,10008。

    三、参考资料

    spring_cloud_bus

    更多详情

    设置为vip可见的都可访问下面链接地址,即可观看原文
    更多详情请访问: juntech

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