Spring Cloud工程搭建過(guò)程詳解

更新時(shí)間：2025年02月19日 10:32:42 作者：新綠MEHO

文章介紹了如何使用父子工程搭建SpringCloud項(xiàng)目,包括創(chuàng)建父工程和子項(xiàng)目,以及管理依賴版本,感興趣的朋友一起看看吧

工程搭建

因?yàn)椴鸱殖闪宋⒎?wù)，所以要拆分出多個(gè)項(xiàng)目，但是IDEA只能一個(gè)窗口有一個(gè)項(xiàng)目，為了解決這個(gè)問(wèn)題，我們采用父子工程搭建。

搭建父子工程

創(chuàng)建父工程

1. 創(chuàng)建?個(gè)空的Maven項(xiàng)?, 刪除所有代碼, 只保留pom.xml

2. 完善pom?件

使?properties來(lái)進(jìn)?版本號(hào)的統(tǒng)?管理, 使?dependencyManagement來(lái)管理依賴, 聲明??程的打包?式為pom.

<?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.wmh</groupId>
    <artifactId>spring-cloud-demo1</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>
    <modules>
        <module>order-service</module>
        <module>product-service</module>
    </modules>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.1.6</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <java.version>17</java.version>
        <mybatis.version>3.0.3</mybatis.version>
        <mysql.version>8.0.33</mysql.version>
        <spring-cloud.version>2022.0.3</spring-cloud.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>com.mysql</groupId>
                <artifactId>mysql-connector-j</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter-test</artifactId>
                <version>${mybatis.version}</version>
                <scope>test</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

DependencyManagement 和 Dependencies：

1. dependencies ：將所依賴的jar直接加到項(xiàng)?中. ?項(xiàng)?也會(huì)繼承該依賴.
2. dependencyManagement ：只是聲明依賴, 并不實(shí)現(xiàn)Jar包引?. 如果?項(xiàng)?需要?到相關(guān)依賴，需要顯式聲明. 如果?項(xiàng)?沒(méi)有指定具體版本, 會(huì)從?項(xiàng)?中讀取version. 如果?項(xiàng)?中指定了版本號(hào)，就會(huì)使??項(xiàng)?中指定的jar版本. 此外??程的打包?式應(yīng)該是pom，不是jar, 這?需要?動(dòng)使? packaging 來(lái)聲明.

SpringBoot 實(shí)現(xiàn)依賴jar包版本的管理, 也是這種?式

依賴Jar的版本判斷

    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.mysql</groupId>
                <artifactId>mysql-connector-j</artifactId>
                <version>${mysql.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

上述代碼中, lombok 會(huì)被直接引?到當(dāng)前項(xiàng)?以及?項(xiàng)?中, mysql-connector-j 不會(huì)實(shí)際引?jar,
?項(xiàng)?繼承時(shí)必須顯式聲明.

Spring Cloud版本

Spring Cloud 是基于SpringBoot搭建的, 所以Spring Cloud 版本與SpringBoot版本有關(guān) 。

創(chuàng)建子項(xiàng)目-訂單服務(wù)

聲明項(xiàng)?依賴和項(xiàng)?構(gòu)建插件

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

創(chuàng)建子項(xiàng)目-商品服務(wù)

聲明項(xiàng)?依賴和項(xiàng)?構(gòu)建插件

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

到此這篇關(guān)于Spring Cloud工程搭建的文章就介紹到這了,更多相關(guān)Spring Cloud工程搭建內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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