Zookeeper安装-------linux
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zookeeper是一个分布式协调工具,可以实现注册中心功能
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首先,安装虚拟机,选择VirtualBox,这是一个轻量级虚拟机,而VM为重量级
- 进入官网https://www.virtualbox.org/wiki/Downloads下载虚拟机,按步骤安装
- 下载CentOS 7.8镜像文件 地址http://mirrors.aliyun.com/centos/7.8.2003/isos/x86_64/
- 具体安装教程------https://www.linuxidc.com/Linux/2016-09/135593.htm
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安装jdk1.8,这里使用
yum
命令#查找jdk #yum search java|grep jdk #安装jdk #yum install java-1.8.0-openjdk* #检验安装 #java -version
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安装Zookeeper--------教程https://blog.youkuaiyun.com/wanghwang2008/article/details/78360396
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注意:需要修改!!!!!
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教程版本3.4.10已经不在目录,可进网页复制3.6.10的地址(踩坑------下载-bin.tar.gz文件,否则启动会出现问题)
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其他仿照教程
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安装完成后,进行如图处理,pwd查看安装是否成功,关闭防火墙,查看Zookeeper的ip
- 记得按ctrl+c停止
取代Eureka作为服务注册中心
服务提供者
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新建cloud-provider-payment8004
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更改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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <parent> <artifactId>cloud2020</artifactId> <groupId>com.atguigu.springcloud</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>cloud-provider-payment8004</artifactId> <dependencies> <dependency> <groupId>com.atguigu.springcloud</groupId> <artifactId>cloud-api-commons</artifactId> <version>${project.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-zookeeper-discovery --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> </project>
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添加配置文件 application.yml
#8004表示注册到zookeeper服务器的支付服务提供者端口号 server: port: 8004 #服务器名------注册zookeeper到注册中心名称 spring: application: name: cloud-provider-payment cloud: zookeeper: connect-string: 192.168.0.105:2181
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添加主启动类
package com.atguigu.springcloud; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; @SpringBootApplication @EnableDiscoveryClient public class PaymentMain8004 { public static void main(String[] args) { SpringApplication.run(PaymentMain8004.class,args); } }
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创建Controller包,添加PaymentController
package com.atguigu.springcloud.controller; import lombok.extern.slf4j.Slf4j; import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import java.util.UUID; @RestController @Slf4j public class PaymentController { @Value("${server.port}") private String serverPort; @GetMapping(value = "/payment/zk") public String paymentzk(){ return "springcloud with zookeeper:"+serverPort+"\t"+ UUID.randomUUID().toString(); } }
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在虚拟机上启动zookeeper
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进入zookeeper安装的bin目录
#cd /usr/local/zookeeper/apache-zookeeper-3.6.1-bin/bin
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使用
ll
查看目录 -
开启
zxServer.sh
#./zxServer.sh start #./zkCli.sh
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查看zookeeper下注册服务
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启动8004端口,发现在主启动类报错
- 可发现jar包,冲突
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解决:修改pox.xml文件,修改后如下:
<?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"> <parent> <artifactId>cloud2020</artifactId> <groupId>com.atguigu.springcloud</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>cloud-provider-payment8004</artifactId> <dependencies> <dependency> <groupId>com.atguigu.springcloud</groupId> <artifactId>cloud-api-commons</artifactId> <version>${project.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-zookeeper-discovery --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId> <!--排除zk3.5.3--> <exclusions> <exclusion> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> </exclusion> </exclusions> </dependency> <!--添加zk 3.6.1版本--> <!-- https://mvnrepository.com/artifact/org.apache.zookeeper/zookeeper --> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.6.1</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> </project>
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启动8004服务,再次查看zookeeper,发现服务已经注册
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验证测试,访问http://localhost:8004/payment/zk
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表明注册成功!
服务消费者
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新建cloud-consumerzk-order80
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修改pom.xml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"> <parent> <artifactId>cloud2020</artifactId> <groupId>com.atguigu.springcloud</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>cloud-consumerzk-order80</artifactId> <dependencies> <dependency> <groupId>com.atguigu.springcloud</groupId> <artifactId>cloud-api-commons</artifactId> <version>${project.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-zookeeper-discovery --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> </project>
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创建application.yml文件
server: port: 80 spring: application: name: cloud-consumer-order cloud: zookeeper: connect-string: 192.168.136.140:2181
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创建主启动类
package com.atguigu.springcloud; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; @SpringBootApplication @EnableDiscoveryClient public class OrderZKMain80 { public static void main(String[] args) { SpringApplication.run(OrderZKMain80.class,args); } }
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配置Bean
package com.atguigu.springcloud.config; import org.springframework.cloud.client.loadbalancer.LoadBalanced; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.client.RestTemplate; @Configuration public class ApplicationContextConfig { @LoadBalanced @Bean public RestTemplate getRestTemplate(){ return new RestTemplate(); } }
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创建Controller
package com.atguigu.springcloud.controller; import com.atguigu.springcloud.domain.CommonResult; import com.atguigu.springcloud.domain.Payment; import lombok.extern.slf4j.Slf4j; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.client.RestTemplate; import javax.annotation.Resource; @RestController @Slf4j public class OrderZKController { public static final String INVOME_URL = "http://cloud-provider-payment"; @Resource private RestTemplate restTemplate; @GetMapping("/consumer/payment/zk") public String payment (){ String result = restTemplate.getForObject(INVOME_URL+"/payment/zk",String.class); return result; } }
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验证测试1
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验证测试2------访问http://localhost/consumer/payment/zk