本机搭建spring cloub的高可用Eureka

参考书籍：《Spring Cloud微服务实战》

服务端配置

总节点

    server.port=4444
    spring.application.name = peer
    eureka.client.serviceUrl.defaultZone = http://peer2:1112/eureka/,http://peer1:1111/eureka/

节点一

spring.application.name=peer 
spring.profiles.active=peer1
server.port=1111
eureka.instance.hostname=peer1
#eureka.client.register-with-eureka=true  默认为true
#eureka.client.fetch-registry = true
eureka.client.serviceUrl.defaultZone=http://peer2:1112/eureka/

节点二

  spring.application.name=peer 
    
    spring.profiles.active=peer2
    server.port=1112
    eureka.instance.hostname=peer2
    #eureka.client.register-with-eureka=true
    #eureka.client.fetch-registry = true
    eureka.client.serviceUrl.defaultZone=http://peer1:1111/eureka/

配置host文件：

127.0.0.1 peer1
127.0.0.1 peer2

打包jar
进入jar路径启动命令

java -jar learn-0.0.1-SNAPSHOT.jar --spring.profiles.active=peer1
java -jar learn-0.0.1-SNAPSHOT.jar --spring.profiles.active=peer2
java -jar learn-0.0.1-SNAPSHOT.jar 

• 访问

http://localhost:1111/

http://localhost:1112/

http://localhost:4444/

pom

         <parent>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-parent</artifactId>
             <version>1.3.7.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
         </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>


    <dependencies>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>1.5.4.RELEASE</version>
        </dependency>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!--spring cloub-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
            <version>1.4.6.RELEASE</version>
        </dependency>

    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Brixton.SR5</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

• 最后注意问题：出现available-replicas为空

原因：节点一与节点二下面的服务中心的配置名称保持一致，微服务名称大于服务
spring.application.name=peer