搭建父项目
- 项目名：nacos-parent-2.1
- 添加坐标
<parent> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-build</artifactId> <version>2.3.5.RELEASE</version> </parent> <properties> <spring.cloud.version>Hoxton.SR12</spring.cloud.version> <spring.cloud.alibaba.version>2.2.7-SNAPSHOT</spring.cloud.alibaba.version> <mybatis.plus.starter.version>3.4.0</mybatis.plus.starter.version> <durid.starter.version>1.1.10</durid.starter.version> <swagger.version>2.7.0</swagger.version> <jwt.jjwt.version>0.9.0</jwt.jjwt.version> <jwt.joda.version>2.9.7</jwt.joda.version> </properties> <dependencyManagement> <dependencies> <!-- Spring Dependencies --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-dependencies</artifactId> <version>${spring-boot.version}</version> <type>pom</type> <scope>import</scope> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring.cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-alibaba-dependencies</artifactId> <version>2.2.7.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> <!-- mybatis-plus --> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>${mybatis.plus.starter.version}</version> </dependency> <!-- Druid连接池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>${durid.starter.version}</version> </dependency> <!--swagger2--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>${swagger.version}</version> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>${swagger.version}</version> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-javadoc-plugin</artifactId> <configuration> <skip>true</skip> </configuration> </plugin> </plugins> </build>
- 项目目录结构
服务提供者Provider
搭建服务
- 创建项目：nacos-provider-2.1
- 添加依赖：
<dependencies> <!-- web 启动类 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- nacos 服务发现 --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> </dependency> </dependencies>
- 创建yml文件
#server.port=8070 #spring.application.name=service-provider #spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848 #端口号 server: port: 8070 spring: application: name: service-provider #服务名 cloud: nacos: discovery: server-addr: 127.0.0.1:8848 #nacos服务地址
创建服务
- 启动类
package com.czxy.nacos; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; @SpringBootApplication @EnableDiscoveryClient //服务发现 public class TestNacosProviderApplication { public static void main(String[] args) { SpringApplication.run(TestNacosProviderApplication.class, args ); } }
- 处理类controller
package com.czxy.controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; @RestController public class EchoController { @Resource private HttpServletRequest request; @GetMapping("/echo/{string}") public String echo(@PathVariable String string) { int serverPort = request.getServerPort(); return "Hello Nacos Discovery " + string + ":" + serverPort; } }
查看服务
- 通过浏览器访问
- 通过Nacos控制台查看
注册异常
服务消费者Consumer
搭建服务
- 项目名：nacos-consumer-2.1
- 添加依赖
<dependencies> <!-- web 启动类 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- nacos 服务发现 --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> </dependency> <!-- openfeign 远程调用 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openfeign</artifactId> </dependency> </dependencies>
- 创建配置文件
#server.port=8071 #spring.application.name=service-consumer #spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848 #端口号 server: port: 8071 spring: application: name: service-consumer #服务名 cloud: nacos: discovery: server-addr: 127.0.0.1:8848 #nacos服务地址
创建服务
- 创建启动类
package com.czxy; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; @SpringBootApplication @EnableDiscoveryClient //服务发现 public class TestNacosConsumerApplication { public static void main(String[] args) { SpringApplication.run(TestNacosConsumerApplication.class, args ); } }
- 远程调用配置类
package com.czxy.config; import org.springframework.cloud.client.loadbalancer.LoadBalanced; import org.springframework.context.annotation.Bean; import org.springframework.stereotype.Component; import org.springframework.web.client.RestTemplate; @Component public class RestTemplateConfig { @LoadBalanced //负载均衡 @Bean public RestTemplate restTemplate() { return new RestTemplate(); } }
- 处理类
package com.czxy.nacos.controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.client.RestTemplate; import javax.annotation.Resource; @RestController public class TestRestController { @Resource private RestTemplate restTemplate; @RequestMapping(value = "/echo/{str}", method = RequestMethod.GET) public String echo(@PathVariable String str) { return restTemplate.getForObject("http://service-provider/echo/" + str, String.class); } }
查询服务
- 通过浏览器访问
通过Nacos控制台查看
