Consul是一套开源的分布式服务发现和配置管理系统，由HashiCorp公司用Go语言开发。
1、概述
Consul提供了微服务零碎中的服务治理、配置核心、管制总线等性能。这些性能中的每一个都能够依据须要独自应用，也能够一起应用以构建全方位的服务网络，总之Consul提供了一种残缺的服务网络解决方案。它具备很多长处，包含：基于raft协定，比拟简洁；反对健康检查，同时反对HTTP和DNS协定反对跨数据中心的WAN集群 提供图形界面，跨平台，反对linux，mac，windows。
2、装置并运行consul
https://www.consul.io/downloa...，下载实现后，解压会呈现consul.exe文件，在cmd下进入consul目录
拜访http://localhost:8500就能够看见consul的界面
3、应用办法
新建cloud-providerconsul-payment8006模块
pom.xml
<dependencies> <dependency><!-- 援用本人定义的api通用包，能够应用Payment领取Entity --> <groupId>com.yu.springcloud</groupId> <artifactId>cloud-api-commons</artifactId> <version>${project.version}</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--监控--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!--SpringCloud consul-server--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-consul-discovery</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> </dependencies>yml
server: port: 8006spring: application: name: consul-provider-payment cloud: consul: host: localhost port: 8500 discovery: service-name: ${spring.application.name}主启动
@SpringBootApplication@EnableDiscoveryClientpublic class PaymentMain8006 { public static void main(String[] args) { SpringApplication.run(PaymentMain8006.class, args); }}controller
@RestController@Slf4jpublic class PaymentController { @Value("${server.port}") private String serverPort; @RequestMapping(value = "/payment/consul") public String paymentConsul(){ return "springCloud--consul:"+serverPort+"\t"+ UUID.randomUUID().toString(); }}新建cloud-consumerconsul-order80模块
pom.xml
<dependencies> <dependency><!-- 援用本人定义的api通用包，能够应用Payment领取Entity --> <groupId>com.yu.springcloud</groupId> <artifactId>cloud-api-commons</artifactId> <version>${project.version}</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--监控--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!--SpringCloud consul-server--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-consul-discovery</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> </dependencies>yml
server: port: 8090spring: application: name: cloud-consumer-order cloud: consul: host: localhost port: 8500 discovery: service-name: ${spring.application.name}主启动
@SpringBootApplication@EnableDiscoveryClientpublic class ConsumerConsul8090 { public static void main(String[] args) { SpringApplication.run(ConsumerConsul8090.class, args); }}配置Bean
@Configurationpublic class ApplicationContextConfig { @Bean @LoadBalanced public RestTemplate getRestTemplate(){ return new RestTemplate(); }}controller
@RestController@Slf4jpublic class ConsumerController { public static final String INVOKE_URL = "http://consul-provider-payment"; @Resource private RestTemplate restTemplate; @GetMapping(value = "/consumer/consul/zk") public String paymentInfo(){ String result = restTemplate.getForObject(INVOKE_URL + "/payment/consul", String.class); return result; }}测试