SpringCloud项目创建

SpringCloud和SpringBoot对应关系：https://spring.io/projects/spring-cloud#overview

首先创建父工程

创建完后，可以把src目录删除，因为父工程不需要，删除后变成了下面这样 

然后需要修改pom.xml文件，修改后的pom如下所示，注意看注释

<?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>4.0.0modelVersion>

    <groupId>org.examplegroupId>
    <artifactId>springcloud-testartifactId>
    <version>1.0-SNAPSHOTversion>

    
    <packaging>pompackaging>

    <properties>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <maven.compiler.source>8maven.compiler.source>
        <maven.compiler.target>8maven.compiler.target>
        <junit.version>4.12junit.version>
        <log4j.version>1.2.17log4j.version>
        <lombok.version>1.18.10lombok.version>
        <mysql.version>5.1.3mysql.version>
        <druid.version>1.1.16druid.version>
        <mybatis.spring.boot.version>2.2.0mybatis.spring.boot.version>
    properties>

    <modules>
        <module>springcloud-apimodule>
        <module>springcloud-provieder-user-8081module>
    modules>

    
    <dependencyManagement>
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-dependenciesartifactId>
                <version>2.3.7.RELEASEversion>
                <type>pomtype>
                <scope>importscope>
            dependency>
            
            <dependency>
                <groupId>org.springframework.cloudgroupId>
                <artifactId>spring-cloud-dependenciesartifactId>
                <version>Hoxton.SR1version>
                <type>pomtype>
                <scope>importscope>
            dependency>
            
            <dependency>
                <groupId>com.alibaba.cloudgroupId>
                <artifactId>spring-cloud-alibaba-dependenciesartifactId>
                <version>2.1.0.RELEASEversion>
                <type>pomtype>
                <scope>importscope>
            dependency>
            
            <dependency>
                <groupId>mysqlgroupId>
                <artifactId>mysql-connector-javaartifactId>
                <version>${mysql.version}version>
            dependency>
            
            <dependency>
                <groupId>com.alibabagroupId>
                <artifactId>druidartifactId>
                <version>${druid.version}version>
            dependency>
            
            <dependency>
                <groupId>org.mybatis.spring.bootgroupId>
                <artifactId>mybatis-spring-boot-starterartifactId>
                <version>${mybatis.spring.boot.version}version>
            dependency>
            
            <dependency>
                <groupId>junitgroupId>
                <artifactId>junitartifactId>
                <version>${junit.version}version>
            dependency>
            
            <dependency>
                <groupId>log4jgroupId>
                <artifactId>log4jartifactId>
                <version>${log4j.version}version>
            dependency>
            
            <dependency>
                <groupId>org.projectlombokgroupId>
                <artifactId>lombokartifactId>
                <version>${lombok.version}version>
                <optional>trueoptional>
            dependency>
        dependencies>
    dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
                <configuration>
                    <fork>truefork>
                    <addResources>trueaddResources>
                configuration>
            plugin>
        plugins>
    build>

project>

创建子项目

 删除子项目中多余的文件

然后我们需要修改父项目和子项目的pom文件进行关联

刷新pom后，我们的子项目再导入依赖，若不指定版本，则就会使用父项目说申明的版本，当然，也可以指定版本进行覆盖

不过这里有个问题，就是子项目直接创建的springboot，是会使用的最新版本，这里最好注意下，可以将我们的父类springboot版本进行更改，保持统一