springcloud全家桶个人博客系统（三）用户消费组件ConsumerFeign

梦里梦外; 2024-04-18 15:11 61阅读 0赞

# 一、简介 #

本组件提供消费者端的负载均衡。

# 二、pom文件 #

<dependencies>
            <dependency>
                <groupId>com.sustly</groupId>
                <artifactId>blog_api</artifactId>
                <version>${project.version}</version>
            </dependency>
            <dependency>
                <groupId>net.java.dev.jna</groupId>
                <artifactId>jna</artifactId>
                <version>4.1.0</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-ribbon</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-config</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>springloaded</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-feign</artifactId>
            </dependency>
        </dependencies>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <executions>
                        <execution>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
            </plugins>
        </build>

# 三、主配置类 #

@SpringBootApplication
    @EnableEurekaClient
    @EnableFeignClients(basePackages = {"com.sustly"})
    public class BlogConsumerFeign {
        public static void main(String[] args) {
            SpringApplication.run(BlogConsumerFeign.class, args);
        }
    }

# 四、application.properties #

server.port=9001
    
    spring.application.name=blog-consumer-feign
    
    eureka.client.register-with-eureka=true
    eureka.client.service-url.defaultZone=http://localhost:7001/eureka/
    feign.hystrix.enabled=true
    
    eureka.instance.instance-id=blog-consumer-feign
    eureka.instance.prefer-ip-address=true
    
    info.app.name=blog-consumer-feign
    info.company.name=www.sustly.xyz
    info.build.artifactId=${project.artifactId}
    info.build.version=${project.version}

# 五、FeignConfig #

@Configuration
    public class FeignConfig {
        @Bean
        @LoadBalanced
        public RestTemplate getRestTemplate(){
            return new RestTemplate();
        }
    
        @Bean
        public IRule myRule(){
            //循环算法 默认
            return new RoundRobinRule();
        }
    }

注意：该配置类必须配置，负载均衡才能起效果。

# 五、controller #

@RestController
    public class ConsumerAdminController {
        private final UserClientService userService;
    
        @Autowired
        public ConsumerAdminController(UserClientService userService) {
            this.userService = userService;
        }
    
    
        @PostMapping("/register")
        public ResponseMsg register(@RequestBody User user){
            return userService.register(user);
        }
    
        @PostMapping("/login")
        public ResponseMsg login(@RequestBody User user){
            return userService.login(user);
        }
    }

本controller中注入的service是上一篇文章中的。

# 六、我的GitHub地址 #

[https://github.com/sustly/blog\_vue\_server][https_github.com_sustly_blog_vue_server]

注意：master分支才是springcloud版本

[https_github.com_sustly_blog_vue_server]: https://github.com/sustly/blog_vue_server