SpringBoot整合Consul

SpringBoot整合Consul

一、添加依赖

<parent>
	<artifactId>spring-boot-starter-parentartifactId>
	<groupId>org.springframework.bootgroupId>
	<version>2.6.6version>
parent>
<dependencyManagement>
	<dependencies>
		<dependency>
			<groupId>org.springframework.cloudgroupId>
			<artifactId>spring-cloud-dependenciesartifactId>
			<version>2021.0.1version>
			<type>pomtype>
			<scope>importscope>
		dependency>
	dependencies>
dependencyManagement>
<dependencies>
	
	<dependency>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-webartifactId>
		<version>2.6.6version>
	dependency>
	
	<dependency>
		<groupId>org.springframework.cloudgroupId>
		<artifactId>spring-cloud-starter-consul-configartifactId>
		<version>3.1.0version>
	dependency>
	
	<dependency>
		<groupId>org.springframework.cloudgroupId>
		<artifactId>spring-cloud-starter-consul-discoveryartifactId>
		<version>3.1.0version>
	dependency>
dependencies>

二、在bootstrap.yml中配置

spring:
  application:
    name: consul-demo
  cloud:
    consul:
      config:
        format: yaml

三、在启动类增加@EnableDiscoveryClient注解

作用：让该服务放注册中心注册和从注册中心获取其他服务。

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient
public class ConsulApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConsulApplication.class);
    }
    
}

四、项目启动

（1）启动项目，如果发现下面的错误：

解决办法：添加依赖

<dependency>
	<groupId>org.springframework.cloudgroupId>
	<artifactId>spring-cloud-starter-bootstrapartifactId>
	<version>3.1.1version>
dependency>

（2）项目启动成功，发现consul实例的健康检查失败：

解决办法：添加依赖

<dependency>
	<groupId>org.springframework.bootgroupId>
	<artifactId>spring-boot-starter-actuatorartifactId>
	<version>2.6.6version>
dependency>

五、测试

在consul里面配置

server:
  port: 8081
test:
  name: consul-demo

编写测试类，获取consul里面的属性。

@RestController
@RequestMapping("/test")
public class TestController {

    @Value("${test.name}")
    private String name;

    @GetMapping("/getName")
    public String getByName(){
        return name;
    }

}