SpringCloud学习（一）--环境搭建

逃离我推掉我的手 2022-12-23 11:27 200阅读 0赞

**目录**

一、建立工程

二、添加依赖

三、添加服务提供者

1）工程结构

2）pom依赖

3）核心controller

四、添加服务消费者

1）工程目录结构

2）pom文件依赖

3）核心controller

五、测试

--------------------

# 一、建立工程 #

建立之后的工程如下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70][]

# 二、添加依赖 #

<parent>
            <artifactId>spring-boot-starter-parent</artifactId>
            <groupId>org.springframework.boot</groupId>
            <version>2.1.5.RELEASE</version>
            <relativePath/>
        </parent>
    
        <properties>
            <java.version>1.8</java.version>
            <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
            <mapper.starter.version>2.1.5</mapper.starter.version>
            <mysql.version>8.0.21</mysql.version>
            <lombok.version>1.18.16</lombok.version>
        </properties>
    
        <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>
                
                <dependency>
                    <groupId>tk.mybatis</groupId>
                    <artifactId>mapper-spring-boot-starter</artifactId>
                    <version>${mapper.starter.version}</version>
                </dependency>
    
                
                <dependency>
                    <groupId>mysql</groupId>
                    <artifactId>mysql-connector-java</artifactId>
                    <version>${mysql.version}</version>
                </dependency>
    
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-starter-config</artifactId>
                </dependency>
    
                <dependency>
                    <groupId>org.projectlombok</groupId>
                    <artifactId>lombok</artifactId>
                    <version>${lombok.version}</version>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
        <repositories>
            <repository>
                <id>aliyun</id>
                <name>aliyun</name>
                <url>http://maven.aliyun.com/nexus/content/groups/public</url>
            </repository>
        </repositories>

最好添加阿里云的镜像，这样下包时，速度会比较快。

# 三、添加服务提供者 #

## 1）工程结构 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70 1][]

## 2）pom依赖 ##

<dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>tk.mybatis</groupId>
                <artifactId>mapper-spring-boot-starter</artifactId>
            </dependency>
    
            
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
        </dependencies>

## 3）核心controller ##

@RestController
    @RequestMapping("/user")
    public class UserController {
    
        @Autowired
        private UserService userService;
    
        @GetMapping("/{id}")
        public User queryById(@PathVariable Long id){
            return userService.querById(id);
        }
    }

# 四、添加服务消费者 #

## 1）工程目录结构 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70 2][]

## 2）pom文件依赖 ##

<dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
        </dependencies>

## 3）核心controller ##

@Slf4j
    @RestController
    @RequestMapping("/consumer")
    public class ConsumerController {
    
        @Autowired
        private RestTemplate restTemplate;
    
        @Autowired
        private DiscoveryClient discoveryClient;//服务发现客户端
    
        @GetMapping("/{id}")
        public User queryById(@PathVariable Long id){
            String url = "http://localhost:9091/user/1";
    
            return restTemplate.getForObject(url, User.class);
        }
    }

# 五、测试 #

user-service 和consumer-demo启动后，浏览器输入 [http://localhost:8080/consumer/1][http_localhost_8080_consumer_1]

出现如下内容则是正常

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70 3][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70]: /images/20221120/04b9e488f9914bea80d802dd8a723c7d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20201125011348400.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20201125011704814.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ==,size_16,color_FFFFFF,t_70
[http_localhost_8080_consumer_1]: http://localhost:8080/consumer/1
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20201125011918182.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E4MEM1MQ==,size_16,color_FFFFFF,t_70