微服务Spring Cloud实战简易操作教程

我不是女神ヾ 2022-05-11 16:42 130阅读 0赞

# 简介 编写服务消费者 #

服务提供者链接：[https://blog.csdn.net/weixin\_43439494/article/details/83213744][https_blog.csdn.net_weixin_43439494_article_details_83213744]

# 1.创建一个Maven项目，ArtifactId是microservice-simple-consumer-movie。 #

大致目录如下:  
![在这里插入图片描述][70]

# 2.和服务提供者，电影微服务也需要引入String Boot及Sprig Cloud的依赖管理。pom.xml: #

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.aster</groupId>
        <artifactId>microservice-simple-consumer-movice</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <packaging>jar</packaging>
    
        
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.0.4.RELEASE</version>
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
                <version>2.0.4.RELEASE</version>
            </dependency>
        </dependencies>
    
        
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>Edgwware.RELEASE</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
        
    </project>

# 3.创建用户实体类，该类是一个POJO。 #

POJO指的是不包含java业务逻辑的只单纯用来存储数据的java类。

public class User { 
        private Long id;
        private String username;
        private String name;
        private Integer age;
        private BigDecimal balance;
    
    	//getters and setters
        public Long getId() {  return id; }
        public void setId(Long id) {  this.id = id; }
        public String getUsername() {  return username; }
        public void setUsername(String username) {  this.username = username; }
        public String getName() {  return name; }
        public void setName(String name) {  this.name = name; }
        public Integer getAge() {  return age; }
        public void setAge(Integer age) {  this.age = age; }
        public BigDecimal getBalance() {  return balance; }
        public void setBalance(BigDecimal balance) {  this.balance = balance; }
    }

# 4.创建启动类ConsumerMovieApplication，代码如下。 #

@SpringBootApplication
    public class ConsumerMovieApplication { 
        @Bean
        public RestTemplate restTemplate() {  return new RestTemplate(); }
    
        public static void main(String[] args) { 
            SpringApplication.run(ConsumerMovieApplication.class, args);
        }
    }

# 5.创建Controller，在其中使用RestTemplate请求用户微服务的API。 #

@RestController
    public class MovieController { 
        @Autowired
        private RestTemplate restTemplate;
    
        @GetMapping("/user/{id}")
        public User findById(@PathVariable Long id){ 
            return this.restTemplate.getForObject("http://localhost:8000/" + id, User.class);
        }
    }

# 6.配置编写文件 application.yml: #

server:
        port: 8010

# 7.访问网址 http：//127.0.0.1：8010/user/1，结果如下： #

![在这里插入图片描述][70 1]

本文大部分内容转载自周立的《Spring Cloud与Docker微服务架构实战》

[https_blog.csdn.net_weixin_43439494_article_details_83213744]: https://blog.csdn.net/weixin_43439494/article/details/83213744
[70]: /images/20220505/961f668dc0cc48eda648534614a65652.png
[70 1]: /images/20220505/0773316599f14402b14bbe52ff4b933a.png