简单的微服务框架搭建

怎样进行简单的微服务框架搭建？星辉小编来告诉大家。

1. 注册中心搭建

导入 SpringBoot：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.2.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

导入 SpringCloud：

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
</properties>

Springcloud 的依赖仓库导入：

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

Eureka 服务端启动器导入：

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>

application.properties：

server.port=8763
eureka.instance.hostname=localhost
#是否注册到eureka
eureka.client.registerWithEureka=false
#是否从eureka中拉取注册信息
eureka.client.fetchRegistry=false
##暴露eureka服务的地址
eureka.client.serviceUrl.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/

启动类：

@SpringBootApplication
//开启 EurekaServer 服务注册功能
@EnableEurekaServer
public class EurekaApplication {
    public static void main(String[] args) {
        SpringApplication.run(EurekaApplication.class,args);
    }
}

2.服务提供方

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.2.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
</dependencies>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

bootstrap.properties：

spring.application.name=micro-order
server.port=8084
eureka.client.serviceUrl.defaultZone=http\://localhost\:8763/eureka/

启动类：

@SpringBootApplication
//开启 eureka 客户端功能
@EnableEurekaClient
public class MicroOrderApplication {
    public static void main(String[] args) {
        SpringApplication.run(MicroOrderApplication.class,args);
    }
}

3.服务消费方

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.2.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
</dependencies>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

bootstrap.properties：

spring.application.name=micro-web
server.port=8083
eureka.client.serviceUrl.defaultZone=http\://localhost\:8763/eureka/

启动类：

@SpringBootApplication
@EnableEurekaClient
public class MicroWebApplication {
    @Bean
    //负载均衡注解
    @LoadBalanced
    RestTemplate restTemplate() {
       return new RestTemplate();
    }
    public static void main(String[] args) {
        SpringApplication.run(MicroWebApplication.class,args);
    }
}

调用服务提供方：

@Service
@Scope(proxyMode = ScopedProxyMode.INTERFACES)
public class UserServiceImpl implements UserService {
    public static String SERVIER_NAME = "micro-order";
    @Autowired
    private RestTemplate restTemplate;
    @Override
    public String queryContents() {
        String results = restTemplate.getForObject("http://" + SERVIER_NAME + "/queryUser", String.class);
        return results;
    }
}