SpringCloud之使用Zookeeper作为注册中心

Linux下安装zookeeperLinux安装zookeeper_kxj19980524的博客-优快云博客_linux安装zookeeper

Windows下安装zookeeperWindows下安装zookeeper_kxj19980524的博客-优快云博客

zookeeper图形化客户端工具ZooInspector的使用zookeeper图形化客户端工具ZooInspector的使用_kxj19980524的博客-优快云博客

创建项目导入依赖和配置文件

<?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 http://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>2.0.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.buba</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- SpringBoot整合eureka客户端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
        </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>
                <!--Finchley.RELEASE 加上这个东西,别使用默认的  或者使用Finchley.M7这个兼容springcloud2.0版本但是我使用不好使-->
                <version>Finchley.RELEASE</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>

    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <!--加上这个false就不从上面这个链接里下载jar包-->
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>


</project>

server.port=8001
###服务别名----服务注册到注册中心名称
spring.application.name=zk-member
#zookeeper地址
spring.cloud.zookeeper.connect-string=127.0.0.1:2181

在启动类上加@EnableDiscoveryClient这个注册

然后先启动zookeeper再启动项目,然后打开zookeeper图形化客户端工具,就看到注册上来的服务了.

在启动项目的时候可能会报错,原因就是maven里导的zookeeper客户端和window启动的zookeeper版本不匹配导致的,我用的zookeeper是3.5.4的maven使用的2.1.2的

摘除原有的依赖,引入跟自己zookeeper版本相同的依赖就可以了

zookeeper是采用临时节点类型的,也就是当服务关闭后,等待一会儿心跳收不到了zookeeper就会把服务信息剔除掉,没有自我保护机制的.