微服务中pom的配置策略

dependencyManagement和dependencies区别和联系

参考：https://blog.csdn.net/Sunshineoe/article/details/121083505

<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>io.qargroupId>
    <artifactId>qar-commons-dependenciesartifactId>
    <packaging>pompackaging>
    <version>${revision}version>

    <properties>
        <revision>3.10.0revision>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
        <java.version>1.8java.version>
        <knife4j.version>2.0.9knife4j.version>
        <spring.boot.admin.version>2.7.5spring.boot.admin.version>
        <captcha.version>1.6.2captcha.version>
        <druid.version>1.2.12druid.version>
        <mybatisplus.version>3.5.2mybatisplus.version>
        <sqlserver.version>4.0sqlserver.version>
        <oracle.version>11.2.0.3oracle.version>
        <dameng.version>8.1.2.141dameng.version>
        <commons.lang.version>3.7commons.lang.version>
        <commons.fileupload.version>1.3.3commons.fileupload.version>
        <commons.io.version>2.6commons.io.version>
        <hutool.version>5.7.22hutool.version>
        <easyexcel.version>3.0.5easyexcel.version>
        <joda.time.version>2.9.9joda.time.version>
        <gson.version>2.8.6gson.version>
        <jsoup.version>1.11.3jsoup.version>
        <lombok.version>1.18.22lombok.version>
        <xxl-job.version>2.3.1xxl-job.version>
        <quartz.version>2.3.2quartz.version>
        <aliyun.core.version>3.2.2aliyun.core.version>
        <aliyun.dysmsapi.version>1.1.0aliyun.dysmsapi.version>
        <qcloud.qcloudsms.version>1.0.5qcloud.qcloudsms.version>
        <qiniu.version>7.10.4qiniu.version>
        <aliyun.oss.version>2.8.3aliyun.oss.version>
        <qcloud.cos.version>5.4.4qcloud.cos.version>
        <fastdfs.version>1.27.2fastdfs.version>
        <minio.version>8.4.1minio.version>
        <freemarker.version>2.3.31freemarker.version>
        <mail.version>1.6.2mail.version>
        <ureport2.version>2.2.9ureport2.version>
        <IJPay.version>2.8.2IJPay.version>
        <weixin-java-mp.version>4.2.0weixin-java-mp.version>
        <xstream.version>1.4.20xstream.version>
        <spring-security-oauth2.version>2.3.8.RELEASEspring-security-oauth2.version>
    properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-dynamic-datasourceartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-lockartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-logartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-mybatisartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-securityartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-swaggerartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-toolsartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>io.qargroupId>
                <artifactId>qar-commons-xxl-jobartifactId>
                <version>${revision}version>
            dependency>
            <dependency>
                <groupId>com.github.whvcsegroupId>
                <artifactId>easy-captchaartifactId>
                <version>${captcha.version}version>
            dependency>
            <dependency>
                <groupId>org.projectlombokgroupId>
                <artifactId>lombokartifactId>
                <version>${lombok.version}version>
            dependency>
            <dependency>
                <groupId>com.oraclegroupId>
                <artifactId>ojdbc6artifactId>
                <version>${oracle.version}version>
            dependency>
            <dependency>
                <groupId>com.microsoft.sqlservergroupId>
                <artifactId>sqljdbc4artifactId>
                <version>${sqlserver.version}version>
            dependency>
            <dependency>
                <groupId>com.damenggroupId>
                <artifactId>DmJdbcDriver18artifactId>
                <version>${dameng.version}version>
            dependency>
            <dependency>
                <groupId>com.baomidougroupId>
                <artifactId>mybatis-plus-boot-starterartifactId>
                <version>${mybatisplus.version}version>
            dependency>
            <dependency>
                <groupId>com.alibabagroupId>
                <artifactId>druid-spring-boot-starterartifactId>
                <version>${druid.version}version>
            dependency>
            <dependency>
                <groupId>com.github.xiaoymingroupId>
                <artifactId>knife4j-spring-boot-starterartifactId>
                <version>${knife4j.version}version>
            dependency>
            <dependency>
                <groupId>org.apache.commonsgroupId>
                <artifactId>commons-lang3artifactId>
                <version>${commons.lang.version}version>
            dependency>
            <dependency>
                <groupId>commons-fileuploadgroupId>
                <artifactId>commons-fileuploadartifactId>
                <version>${commons.fileupload.version}version>
            dependency>
            <dependency>
                <groupId>commons-iogroupId>
                <artifactId>commons-ioartifactId>
                <version>${commons.io.version}version>
            dependency>
            <dependency>
                <groupId>cn.hutoolgroupId>
                <artifactId>hutool-allartifactId>
                <version>${hutool.version}version>
            dependency>
            <dependency>
                <groupId>com.alibabagroupId>
                <artifactId>easyexcelartifactId>
                <version>${easyexcel.version}version>
            dependency>
            <dependency>
                <groupId>joda-timegroupId>
                <artifactId>joda-timeartifactId>
                <version>${joda.time.version}version>
            dependency>
            <dependency>
                <groupId>com.google.code.gsongroupId>
                <artifactId>gsonartifactId>
                <version>${gson.version}version>
            dependency>
            <dependency>
                <groupId>org.jsoupgroupId>
                <artifactId>jsoupartifactId>
                <version>${jsoup.version}version>
            dependency>
            <dependency>
                <groupId>com.xuxueligroupId>
                <artifactId>xxl-job-coreartifactId>
                <version>${xxl-job.version}version>
            dependency>
            <dependency>
                <groupId>de.codecentricgroupId>
                <artifactId>spring-boot-admin-starter-serverartifactId>
                <version>${spring.boot.admin.version}version>
            dependency>
            <dependency>
                <groupId>org.quartz-schedulergroupId>
                <artifactId>quartzartifactId>
                <version>${quartz.version}version>
            dependency>
            <dependency>
                <groupId>com.aliyungroupId>
                <artifactId>aliyun-java-sdk-coreartifactId>
                <version>${aliyun.core.version}version>
            dependency>
            <dependency>
                <groupId>com.aliyungroupId>
                <artifactId>aliyun-java-sdk-dysmsapiartifactId>
                <version>${aliyun.dysmsapi.version}version>
            dependency>
            <dependency>
                <groupId>com.github.qcloudsmsgroupId>
                <artifactId>qcloudsmsartifactId>
                <version>${qcloud.qcloudsms.version}version>
            dependency>
            <dependency>
                <groupId>com.qiniugroupId>
                <artifactId>qiniu-java-sdkartifactId>
                <version>${qiniu.version}version>
            dependency>
            <dependency>
                <groupId>com.aliyun.ossgroupId>
                <artifactId>aliyun-sdk-ossartifactId>
                <version>${aliyun.oss.version}version>
            dependency>
            <dependency>
                <groupId>com.qcloudgroupId>
                <artifactId>cos_apiartifactId>
                <version>${qcloud.cos.version}version>
            dependency>
            <dependency>
                <groupId>com.github.tobatogroupId>
                <artifactId>fastdfs-clientartifactId>
                <version>${fastdfs.version}version>
            dependency>
            <dependency>
                <groupId>io.miniogroupId>
                <artifactId>minioartifactId>
                <version>${minio.version}version>
            dependency>
            <dependency>
                <groupId>com.sun.mailgroupId>
                <artifactId>javax.mailartifactId>
                <version>${mail.version}version>
            dependency>
            <dependency>
                <groupId>org.freemarkergroupId>
                <artifactId>freemarkerartifactId>
                <version>${freemarker.version}version>
            dependency>
            <dependency>
                <groupId>com.bstek.ureportgroupId>
                <artifactId>ureport2-consoleartifactId>
                <version>${ureport2.version}version>
            dependency>
            <dependency>
                <groupId>com.github.javen205groupId>
                <artifactId>IJPay-AliPayartifactId>
                <version>${IJPay.version}version>
            dependency>
            <dependency>
                <groupId>com.github.binarywanggroupId>
                <artifactId>weixin-java-mpartifactId>
                <version>${weixin-java-mp.version}version>
            dependency>
            <dependency>
                <groupId>com.thoughtworks.xstreamgroupId>
                <artifactId>xstreamartifactId>
                <version>${xstream.version}version>
            dependency>
            <dependency>
                <groupId>org.springframework.security.oauthgroupId>
                <artifactId>spring-security-oauth2artifactId>
                <version>${spring-security-oauth2.version}version>
            dependency>
        dependencies>
    dependencyManagement>

project>

project-root的pom

<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>

	<parent>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-parentartifactId>
		<version>2.7.7version>
	parent>

	<groupId>io.qargroupId>
	<artifactId>qar-cloudartifactId>
	<version>${revision}version>
	<packaging>pompackaging>
	<description>qar微服务平台，是基于Spring Cloud打造的微服务平台，为企业提供一站式微服务解决方案！description>

	<organization>
		<name>qarname>
		<url>https://www.qar.io/communityurl>
	organization>

	<modules>
		<module>qar-commonsmodule>
		<module>qar-gatewaymodule>
		<module>qar-monitormodule>
		<module>qar-authmodule>
		<module>qar-adminmodule>
		<module>qar-modulemodule>
		<module>qar-newmodule>
	modules>

	<properties>
		<revision>3.10.0revision>
		<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
		<java.version>1.8java.version>
		<spring.cloud.version>2021.0.5spring.cloud.version>
		<spring.cloud.alibaba.version>2021.0.4.0spring.cloud.alibaba.version>
	properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.cloudgroupId>
			<artifactId>spring-cloud-starter-bootstrapartifactId>
		dependency>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-configuration-processorartifactId>
			<optional>trueoptional>
		dependency>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-testartifactId>
			<scope>testscope>
		dependency>
		<dependency>
			<groupId>com.alibaba.nacosgroupId>
			<artifactId>nacos-clientartifactId>
			<version>2.1.1version>
		dependency>
		<dependency>
			<groupId>org.springframework.cloudgroupId>
			<artifactId>spring-cloud-starter-openfeignartifactId>
		dependency>
		<dependency>
			<groupId>org.springframework.cloudgroupId>
			<artifactId>spring-cloud-starter-loadbalancerartifactId>
		dependency>
		<dependency>
			<groupId>com.github.ben-manes.caffeinegroupId>
			<artifactId>caffeineartifactId>
		dependency>
	dependencies>

	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloudgroupId>
				<artifactId>spring-cloud-dependenciesartifactId>
				<version>${spring.cloud.version}version>
				<type>pomtype>
				<scope>importscope>
			dependency>
			<dependency>
				<groupId>com.alibaba.cloudgroupId>
				<artifactId>spring-cloud-alibaba-dependenciesartifactId>
				<version>${spring.cloud.alibaba.version}version>
				<type>pomtype>
				<scope>importscope>
			dependency>
			<dependency>
				<groupId>io.qargroupId>
				<artifactId>qar-commons-dependenciesartifactId>
				<version>${revision}version>
				<type>pomtype>
				<scope>importscope>
			dependency>
		dependencies>
	dependencyManagement>

	<repositories>
		<repository>
			<id>publicid>
			<name>aliyun nexusname>
			<url>https://maven.aliyun.com/repository/public/url>
			<releases>
				<enabled>trueenabled>
			releases>
		repository>
	repositories>
	<pluginRepositories>
		<pluginRepository>
			<id>publicid>
			<name>aliyun nexusname>
			<url>https://maven.aliyun.com/repository/public/url>
			<releases>
				<enabled>trueenabled>
			releases>
			<snapshots>
				<enabled>falseenabled>
			snapshots>
		pluginRepository>
	pluginRepositories>

project>

项目pom中要想包含子模块，需要配置modules其中module是子模块的artifactId值

<modules>
	<module>qar-commonsmodule>
	<module>qar-gatewaymodule>
	<module>qar-monitormodule>
	<module>qar-authmodule>
	<module>qar-adminmodule>
	<module>qar-modulemodule>
	<module>qar-newmodule>
modules>

子模块想要继承父级模块的dependency依赖包，需要配置parent指定继承节点

<parent>
	<groupId>io.qargroupId>
	<artifactId>qar-cloudartifactId>
	<version>${revision}version>
parent>

每一个模块必须要有groupId、artifactId、packaging、version：

<groupId>io.qargroupId>
<artifactId>qar-commonsartifactId>
<packaging>pompackaging>

每个模块的变量先在当前配置中查找，如果没有就去父模块查找：

<version>${revision}version>

属性变量的配置：

<properties>
	<revision>3.10.0revision>
	<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
	<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
	<java.version>1.8java.version>
	<spring.cloud.version>2021.0.5spring.cloud.version>
	<spring.cloud.alibaba.version>2021.0.4.0spring.cloud.alibaba.version>
properties>

repositories 远程仓库配置：

唯一的ID，一个描述性的name，远程仓库的url, true告诉Maven可以从这个仓库下载releases版本的构件

<repositories>
	<repository>
		<id>publicid>
		<name>aliyun nexusname>
		<url>https://maven.aliyun.com/repository/public/url>
		<releases>
			<enabled>trueenabled>
		releases>
	repository>
repositories>

pluginRepositories远程插件仓库配置：

<pluginRepositories>
   <pluginRepository>
   	<id>publicid>
   	<name>aliyun nexusname>
   	<url>https://maven.aliyun.com/repository/public/url>
   	<releases>
   		<enabled>trueenabled>
   	releases>
   	<snapshots>
   		<enabled>falseenabled>
   	snapshots>
   pluginRepository>
pluginRepositories>

运行Maven的时候，Maven所需要的任何构件都是直接从本地仓库获取的。如果本地仓库没有，它会首先尝试从远程仓库下载构件至本地仓库，然后再使用本地仓库的构件
当我们运行install的时候，Maven实际上是将项目生成的构件安装到了本地仓库，即只有install了之后，其它项目才能使用此项目生成的构件

packaging的配置：

pom：父类型都为pom类型, 在maven install时不会生成jar/war压缩包

<packaging>pompackaging>

jar：内部调用或者是作服务使用,是默认的打包方式，
这种打包方式意味着在maven build时会将这个项目中的所有java文件都进行编译形成.class文件，且按照原来的java文件层级结构放置，最终压缩为一个jar文件

<packaging>jarpackaging>

war：打包项目，用于在容器（Tomcat、Jetty等）上部署
war包与jar包非常相似，同样是编译后的.class文件按层级结构形成文件树后打包形成的压缩包。不同的是，它会将项目中依赖的所有jar包都放在WEB-INF/lib这个文件夹下
war包非常适合部署时使用，不再需要下载其他的依赖包，能够使用户拿到war包直接使用，因此它经常使用于微服务项目群中的入口项目的pom配置中

<packaging>warpackaging>

build配置

指定install打包的包名

<build>
    <finalName>${project.artifactId}finalName>
build>
#默认的build
<build>  
  <defaultGoal>installdefaultGoal>  
  <directory>${basedir}/targetdirectory>  
  <finalName>${artifactId}-${version}finalName> 
  <filters>
   <filter>filters/filter1.propertiesfilter>
  filters> 
  ...
build>

全局配置（project build）
针对整个项目的所有情况都有效
配置（profile build）
针对不同的profile配置
参考： https://blog.csdn.net/zmemorys/article/details/105406053

openfeign调用配置pom

在A微服务中采用feign调用，一个服务提供当前服务使用的接口和提供给外部使用的接口，此时， 创建两个模块，一个模块给自身提供服务接口，一个模块提供外部使用的接口（这个模块有DTO的定义，有DTO的定义就需要swagger的配置）所以该模块中依赖swagger构件,为了减少重复代码自身服务的模块需要依赖外部模块的构件，使用它的DTO和swagger依赖构件。

当外部B服务调用前者A服务的openfeign时，为了不需要重复写feign调用,需要依赖前者的A服务构件，这样的结构设计可以最大程度的简化代码避免冗余代码出现，也可以很好的管理服务间的调用，服务的提供方和服务的调用方，内部服务和外部服务很好的隔离组织在一起啦！
qar-flow-server内部服务的pom配置：
依赖提供外部服务的qar-flow-client构件和调用三方服务的qar-admin-client构件，client构件中依赖swagger和tools工具构件；

<dependency>
   <groupId>io.qargroupId>
     <artifactId>qar-flow-clientartifactId>
     <version>${revision}version>
 dependency>
 <dependency>
     <groupId>io.qargroupId>
     <artifactId>qar-admin-clientartifactId>
     <version>${revision}version>
 dependency>
 <dependency>
    <groupId>io.qargroupId>
    <artifactId>qar-commons-logartifactId>
dependency>
<dependency>
    <groupId>io.qargroupId>
    <artifactId>qar-commons-mybatisartifactId>
dependency>

provided配置：

 <scope>providedscope>

使用provided标签的好处是可以减小最终打包的项目的大小，避免将不必要的库打包进去。同时，也方便服务器在运行时提供具体的库。
在install打包的qar-commons-dynamic-datasource的jar中，没有qar-commons-mybatis，但编译运行不受影响，如果有外部项目使用qar-commons-dynamic-datasource构件，就需要单独引入qar-commons-mybatis依赖构件；
好处： 既方便依赖包的使用，也防止重复打包，减少代码冗余，减轻服务器的磁盘占用

<artifactId>qar-commons-dynamic-datasourceartifactId>
<packaging>jarpackaging>

<dependencies>
    <dependency>
        <groupId>io.qargroupId>
        <artifactId>qar-commons-mybatisartifactId>
        <scope>providedscope>
    dependency>
dependencies>

<build>
    <finalName>${project.artifactId}finalName>
build>

qar-admin-server服务的pom配置依赖，qar-commons-mybatis和qar-commons-dynamic-datasource构件

<dependency>
   <groupId>io.qargroupId>
   <artifactId>qar-commons-mybatisartifactId>
dependency>
<dependency>
   <groupId>io.qargroupId>
   <artifactId>qar-commons-dynamic-datasourceartifactId>
dependency>