Consul+SpringCloud微服务（入门三）

1.安装Consul

我是用的是docker进行安装：

拉取镜像

[root@VM-24-4-centos ~]# docker pull consul
Using default tag: latest
latest: Pulling from library/consul
9621f1afde84: Pull complete
4cade7a0e680: Pull complete
0b4cab59f493: Pull complete
2fd2812543da: Pull complete
6c601956b715: Pull complete
1dd1d7893a45: Pull complete
Digest: sha256:7e8ad15dbd233dc1c12e298a3c25a8b614d1e185d239f14e483ca7dd4c7a5894
Status: Downloaded newer image for consul:latest
docker.io/library/consul:latest

运行容器

#启动consul
docker run -d  -p 8500:8500/tcp --name myConsul  consul agent -server -ui -bootstrap-expect=1 -client=0.0.0.0

运行成功：

开放8500防火墙：

在浏览器上访问：

2.Consul注册

1.Provider提供者服务

新建服务提供者cloud-provider-consul-payment-8006

<dependencies>

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

    <!--热部署-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </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>

    <!--commons-->
    <dependency>
        <groupId>cn.zko0.cloud</groupId>
        <artifactId>cloud-api-commons</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>

    <!--替换掉eureka依赖，其他直接复制8001-->
    <!--SpringBoot整合Consul-->
    <!--SpringCloud consul-server-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-consul-discovery</artifactId>
    </dependency>

</dependencies>

yml:

server:
  port: 8006

spring:
  application:
    name: consul-provider-payment
  cloud:
    consul:
      host: 101.43.244.40  #用linux的ip地址（consul在本机就填localhost）
      port: 8500
      discovery:
        service-name: ${spring.application.name}
        #Service check机制，新版本需要
        heartbeat:
          enabled: true

Controller:

@RestController
@Slf4j
public class PaymentController {

    @Value("${server.port}")        //获取端口号
    private String serverPort;

    @RequestMapping("/payment/consul")
    public String paymentConsul(){
        return "springcloud with consul：" + serverPort + "\t" + UUID.randomUUID().toString();
    }

}

入口类：

@SpringBootApplication
@EnableDiscoveryClient
public class PaymentMain8006 {
    public static void main(String[] args) {
        SpringApplication.run(PaymentMain8006.class,args);
    }
}

启动项目，查看consul：

2.Consuemr消费者服务

创建模块：cloud-consumer-consul-order80

pom.xml:

<dependencies>

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

    <!--热部署-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </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>

    <!--commons-->
    <dependency>
        <groupId>cn.zko0.cloud</groupId>
        <artifactId>cloud-api-commons</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>

    <!--SpringBoot整合Consul-->
    <!--SpringCloud consul-server-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-consul-discovery</artifactId>
    </dependency>

</dependencies>

yml:

server:
  port: 80

spring:
  application:
    name: consul-consumer-order
  cloud:
    consul:
      host: 101.43.244.40  #用linux的ip地址（consul在本机就填localhost）
      port: 8500
      discovery:
        service-name: ${spring.application.name}
        #Service check机制，新版本需要
        heartbeat:
          enabled: true

启动类：

@SpringBootApplication
@EnableDiscoveryClient
public class OrderMainConsul80 {
    public static void main(String[] args) {
        SpringApplication.run(OrderMainConsul80.class,args);
    }
}

Controller：

@RestController
@Slf4j
public class OrderController {

    public static final String INVOKE_URL = "http://consul-provider-payment";

    @Resource
    private RestTemplate restTemplate;

    @RequestMapping("/consumer/payment/consul")
    public String paymentInfo(){
        String result = restTemplate.getForObject(INVOKE_URL + "/payment/consul", String.class);
        return result;
    }

}

启动，成功：

3.Consumer调用Provider测试

远程调用服务成功