Spring cloud alibaba--环境搭建

傷城~ 2023-10-03 11:11 2阅读 0赞

**目录**

1.运行环境

2.使用ieda搭建项目

2.1创建父项目工程

2.2创建子项目工程

2.3两个子项目相互调用

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

#### 1.运行环境 ####

（1）jdk 1.8+

（2）maven 3.2.x+

#### 2.使用ieda搭建项目 ####

#### 2.1创建父项目工程 ####

（1）先创建一个父项目，用于管理子项目，给子项目提供依赖

①file->new->Module打开创建面板

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70][]

②可以选择maven或者Spring Initializr方式，我们选择Spring Initializr方式

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 1][]③填写项目的Group、Artifact信息，选择packaging只有jar和war，等创建完后再改写pom.xml中的packaging为pom。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 2][]④选择一个spring boot依赖的父版本

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 3][]

⑤改写项目名，选择工作空间

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 5][]

（2）修改父项目配置信息

①修改pom.xml父类的打包方式，当修改为pom的时候，运行mvn打包命令时，父项目不进行打包

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 6][]

（3）引入jar包的版本问题

①通过github地址查看spring-cloud-alibaba需要引入的对应版本问题，地址：[https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E][https_github.com_alibaba_spring-cloud-alibaba_wiki_E7_89_88_E6_9C_AC_E8_AF_B4_E6_98_8E]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 7][]

②版本对应问题，当我们引入了Spring cloud Alibaba Version对应的版本后，组件版本也被对应引入。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 8][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 9][]（4）引入版本选择，引入spring cloud alibaba后，对应的组件版本也会引入

Spring cloud alibaba：2.2.6.RELEASE

Spring Cloud Version：Spring Cloud Hoxton.SR9

Spring Boot Version：2.3.3.RELEASE

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 10][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 11][]

![20210718103838200.png][]

（5）在pom.xml中引入jar，由于spring boot需要使用父项目parent的方式引入，springcloud alibaba也需要使用parent的方式引入，但是一个pom.xml中只能有一个parent，所以需要使用 dependencyManagement引入；parent可以为以后引入公司自己的项目做准备入口。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 12][]

pom.xml配置信息，使用配置版本号的方式管理引入的版本

<properties>
            <java.version>1.8</java.version>
            <spring.boot.version>2.3.3.RELEASE</spring.boot.version>
            <spring.cloud.alibaba.version>2.2.6.RELEASE</spring.cloud.alibaba.version>
            <spring.cloud.version>Hoxton.SR9</spring.cloud.version>
        </properties>

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.qingyun</groupId>
        <artifactId>springcloudalibaba</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <modules>
            <module>Order</module>
            <module>stock</module>
        </modules>
        <name>springcloudalibaba</name>
        
        <packaging>pom</packaging>
        <description>Demo project for Spring Cloud</description>
    
        <properties>
            <java.version>1.8</java.version>
            <spring.boot.version>2.3.3.RELEASE</spring.boot.version>
            <spring.cloud.alibaba.version>2.2.6.RELEASE</spring.cloud.alibaba.version>
            <spring.cloud.version>Hoxton.SR9</spring.cloud.version>
        </properties>
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
    
        </dependencies>
    
        
        <dependencyManagement>
            <dependencies>
                
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-parent</artifactId>
                    <version>${spring.boot.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
    
                
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>${spring.cloud.alibaba.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>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

#### 2.2创建子项目工程 ####

（1）创建maven工程，选中父项目->new->module

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 13][]（2）使用maven的方式创建项目，勾选父项目工程

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 14][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 15][]

（3）在父类项目下就创建好一个子类项目，子类项目的pom.xml中默认引入了parent父类项目

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 16][]

（4）相同的方式，再创建一个子项目stock

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 17][]

#### 2.3两个子项目相互调用 ####

（1）两个子项目的pom.xml中引入jar

（2）订单项目Order添加spring boot启动类

/**
     * 程序启动类
     */
    @SpringBootApplication
    public class OrderApplication {
        public static void main(String[] args) {
            SpringApplication.run(OrderApplication.class,args);
        }
    }

（3）库存项目Stock添加spring boot启动类

@SpringBootApplication
    public class StockApplication {
        public static void main(String[] args) {
            SpringApplication.run(StockApplication.class,args);
        }
    }

（4）订单项目Order写controller层业务逻辑

@Controller
    @RequestMapping("/order")
    public class OrderController {
    
        @RequestMapping("/add")
        public String add(){
            System.out.println("下单成功");
            return "add order ";
        }
    }

（5）库存项目Stock写Controller层业务逻辑

@RestController
    @RequestMapping("/stock")
    public class StockController {
    
        @RequestMapping("/reduct")
        public String reduct(){
            System.out.println("扣减库存");
            return "扣减库存成功";
        }
    }

（6）订单系统Order调用库存系统Stock，使用RestTemplate调用。在Order程序启动时使用Bean创建RestTemplate，并放到spring容器中

/**
     * 程序启动类
     */
    @SpringBootApplication
    public class OrderApplication {
        public static void main(String[] args) {
            SpringApplication.run(OrderApplication.class,args);
        }
    
        //程序启动时创建RestTemplate
        @Bean
        public RestTemplate restTemplate(RestTemplateBuilder builder){
            RestTemplate build = builder.build();
            return build;
        }
    }

（7）两个项目分别在resources目录下创建application.properties配置文件，配置为不同的服务端口

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 18][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 19][]

（8）在Order业务层中使用RestTemplate调用库存模块的业务

@RestController
    @RequestMapping("/order")
    public class OrderController {
    
        //注入RestTemplate
        @Autowired
        RestTemplate restTemplate;
        
        @RequestMapping("/add")
        public String add(){
            System.out.println("下单成功");
            String forObject = restTemplate.getForObject("http://localhost:8083/stock/reduct", String.class);
            return "add order "+forObject;
        }
    }

（9）启动两个spring boot项目，浏览器访问后台控制层

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1pIQU5HTElaRU5H_size_16_color_FFFFFF_t_70 20][]

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[https_github.com_alibaba_spring-cloud-alibaba_wiki_E7_89_88_E6_9C_AC_E8_AF_B4_E6_98_8E]: https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E
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