IDEA创建多模块聚合工程

以前一直是用eclipse导入聚合工程，后来改用IntelliJ IDEA，，发现工程的创建跟eclipse差太多了，所以在这里做个非常细的总结，自己忘了啥细节也好回忆

修改MAVEN本地仓库

• File->settings->Build->Build Tools->Maven打开设置

  

新建Empty空项目

• File->New->Project

新建parent工程

• File->New->Module

选择Create from archtype 再选择maven-archetype-quickstart
什么是Maven Archetype? 简单的说就是一个Maven项目的基础模板，利用这个模板我们就可快速的建立一个新的该类型项目，同时也可以建立自己的项目骨架。
Maven所提供的archetype功能都是由插件Maven Archetype Plugin完成的

GroupID是项目组织唯一的标识符，实际对应JAVA的包的结构（参考：http://blog.csdn.net/limm33/article/details/52758009），是main目录里java的目录结构。
ArtifactID就是项目的唯一的标识符，实际对应项目的名称，就是项目根目录的名称。
一般GroupID就是填com.info.test.这样子。
groupid和artifactId被统称为“坐标”是为了保证项目唯一性而提出的，如果你要把你项目弄到maven本地仓库去，你想要找到你的项目就必须根据这两个id去查找。
　　groupId一般分为多个段，这里我只说两段，第一段为域，第二段为公司名称。域又分为org、com、cn等等许多，其中org为非营利组织，com为商业组织。举个apache公司的tomcat项目例子：这个项目的groupId是org.apache，它的域是org（因为tomcat是非营利项目），公司名称是apache，artigactId是tomcat。
　　比如我创建一个项目，我一般会将groupId设置为cn.pq，cn表示域为中国，pq是我个人姓名缩写，artifactId设置为testProj，表示你这个项目的名称是testProj，依照这个设置，你的包结构最好是cn.pq.testProj打头的，如果有个StudentPeng，它的全路径就是cn.pq.testProj.StudentPeng

设置maven地址和settings.xml文件的位置以及maven仓库的地址

<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>cn.e3mall</groupId>
  <artifactId>e3-parent</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <packaging>pom</packaging>
  <!-- 集中定义依赖版本号 -->
  <properties>
    <junit.version>4.12</junit.version>
    <spring.version>4.2.4.RELEASE</spring.version>
    <mybatis.version>3.2.8</mybatis.version>
    <mybatis.spring.version>1.2.2</mybatis.spring.version>
    <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
    <mysql.version>5.1.32</mysql.version>
    <slf4j.version>1.6.4</slf4j.version>
    <jackson.version>2.4.2</jackson.version>
    <druid.version>1.0.9</druid.version>
    <httpclient.version>4.3.5</httpclient.version>
    <jstl.version>1.2</jstl.version>
    <servlet-api.version>2.5</servlet-api.version>
    <jsp-api.version>2.0</jsp-api.version>
    <joda-time.version>2.5</joda-time.version>
    <commons-lang3.version>3.3.2</commons-lang3.version>
    <commons-io.version>1.3.2</commons-io.version>
    <commons-net.version>3.3</commons-net.version>
    <pagehelper.version>3.4.2</pagehelper.version>
    <jsqlparser.version>0.9.1</jsqlparser.version>
    <commons-fileupload.version>1.3.1</commons-fileupload.version>
    <jedis.version>2.7.2</jedis.version>
    <solrj.version>4.10.3</solrj.version>
    <dubbo.version>2.5.3</dubbo.version>
    <zookeeper.version>3.4.7</zookeeper.version>
    <zkclient.version>0.1</zkclient.version>
    <activemq.version>5.11.2</activemq.version>
    <freemarker.version>2.3.23</freemarker.version>
    <quartz.version>2.2.2</quartz.version>
  </properties>
  <dependencyManagement>
    <dependencies>
      <!-- 时间操作组件 -->
      <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>${joda-time.version}</version>
      </dependency>
      <!-- Apache工具组件 -->
      <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>${commons-lang3.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-io</artifactId>
        <version>${commons-io.version}</version>
      </dependency>
      <dependency>
        <groupId>commons-net</groupId>
        <artifactId>commons-net</artifactId>
        <version>${commons-net.version}</version>
      </dependency>
      <!-- Jackson Json处理工具包 -->
      <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>${jackson.version}</version>
      </dependency>
      <!-- httpclient -->
      <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>${httpclient.version}</version>
      </dependency>
      <!-- quartz任务调度框架 -->
      <dependency>
        <groupId>org.quartz-scheduler</groupId>
        <artifactId>quartz</artifactId>
        <version>${quartz.version}</version>
      </dependency>
      <!-- 单元测试 -->
      <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>${junit.version}</version>
        <scope>test</scope>
      </dependency>
      <!-- 日志处理 -->
      <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>${slf4j.version}</version>
      </dependency>
      <!-- Mybatis -->
      <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>${mybatis.version}</version>
      </dependency>
      <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>${mybatis.spring.version}</version>
      </dependency>
      <dependency>
        <groupId>com.github.miemiedev</groupId>
        <artifactId>mybatis-paginator</artifactId>
        <version>${mybatis.paginator.version}</version>
      </dependency>
      <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper</artifactId>
        <version>${pagehelper.version}</version>
      </dependency>
      <!-- MySql -->
      <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql.version}</version>
      </dependency>
      <!-- 连接池 -->
      <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>${druid.version}</version>
      </dependency>
      <!-- Spring -->
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jms</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <!-- JSP相关 -->
      <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>${jstl.version}</version>
      </dependency>
      <dependency>
              <!-- servlet jsp都是tomcat中的jar包 provied就是我们编译测试运行的时候都会用到这个jar包 但是打包的时候并不把它们打到war包里面去 因为容器都会提供这两个 -->
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>${servlet-api.version}</version>
        <scope>provided</scope>
      </dependency>
      <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jsp-api</artifactId>
        <version>${jsp-api.version}</version>
        <scope>provided</scope>
      </dependency>
      <!-- 文件上传组件 -->
      <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>${commons-fileupload.version}</version>
      </dependency>
      <!-- Redis客户端 -->
      <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>${jedis.version}</version>
      </dependency>
      <!-- solr客户端 -->
      <dependency>
        <groupId>org.apache.solr</groupId>
        <artifactId>solr-solrj</artifactId>
        <version>${solrj.version}</version>
      </dependency>
      <!-- dubbo相关 -->
      <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo</artifactId>
        <version>${dubbo.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.zookeeper</groupId>
        <artifactId>zookeeper</artifactId>
        <version>${zookeeper.version}</version>
      </dependency>
      <dependency>
        <groupId>com.github.sgroschupf</groupId>
        <artifactId>zkclient</artifactId>
        <version>${zkclient.version}</version>
      </dependency>
      <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-all</artifactId>
        <version>${activemq.version}</version>
      </dependency>
      <dependency>
        <groupId>org.freemarker</groupId>
        <artifactId>freemarker</artifactId>
        <version>${freemarker.version}</version>
      </dependency>

    </dependencies>
  </dependencyManagement>

  <build>
    <finalName>${project.artifactId}</finalName>
    <plugins>
      <!-- 资源文件拷贝插件 -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-resources-plugin</artifactId>
        <version>2.7</version>
        <configuration>
          <encoding>UTF-8</encoding>
        </configuration>
      </plugin>
      <!-- java编译插件 -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.2</version>
        <configuration>
        <!-- 如果不配jdk的编译级别就是1.5 -->
          <source>1.7</source>
          <target>1.7</target>
          <encoding>UTF-8</encoding>
        </configuration>
      </plugin>
    </plugins>
    <pluginManagement>
      <plugins>
        <!-- 配置Tomcat插件 -->
        <plugin>
          <groupId>org.apache.tomcat.maven</groupId>
          <artifactId>tomcat7-maven-plugin</artifactId>
          <version>2.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

<properties>是属性定义，定义版本号
<dependecyManagement>依赖管理，管理jar包的版本号，并不是依赖，并没有把jar包导入到当前工程中来。因为Parent是所有项目的父工程，只负责聚合项目，管理依赖版本号。
后面继承parent的项目再用依赖时就不需要写版本号了。
<build>主要用于编译设置，包括两个主要的元素，build和report
build主要分为两部分，基本元素和扩展元素集合
注意：包括项目build和profile build
<pluginManagerment>管理插件的版本号

创建common

• File->New->Module

<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">
    <parent>
        <artifactId>e3-parent</artifactId>
        <groupId>cn.e3mall</groupId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../e3-parent/pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.e3mall</groupId>
    <artifactId>e3-common</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>e3-common</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <!-- 时间操作组件 -->
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
        </dependency>
        <!-- Apache工具组件 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
        </dependency>
        <!-- Jackson Json处理工具包 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <!-- httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <!-- quartz任务调度框架 -->
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
        </dependency>
        <!-- 单元测试 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- 日志处理 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </dependency>

    </dependencies>
</project>

创建manager

• File->New->Module

<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">
    <parent>
        <artifactId>e3-parent</artifactId>
        <groupId>cn.e3mall</groupId>
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>../e3-parent/pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <modules>
        <module>e3-manager-pojo</module>
        <module>e3-manager-dao</module>
        <module>e3-manager-interface</module>
        <module>e3-manager-service</module>
        <module>e3-manager-web</module>

    </modules>
    <packaging>pom</packaging>

    <name>e3-manager</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-common</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <!-- **************************************-->
                    <!-- path是虚拟目录或者叫工程名。如果不写的话就会运行e3-manager 如果我们想要localhost:8080后面不带工程名的效果 就是没有访问路径，就是“/” -->
                    <path>/</path>
                    <port>8080</port>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

创建pojo

创建dao,interface,service

创建完pojo后，同理创建dao，interface,service,都是jar打包方式

---

• pojo没有依赖
• dao依赖于pojo
• interface依赖于pojo(因为定义的参数类型可能是pojo中定义的类)
• service依赖于dao和interface(并且因为dao依赖于pojo,service也是依赖于pojo的)

---

dao

<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">
    <parent>
        <artifactId>e3-manager</artifactId>
        <groupId>cn.e3mall</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager-dao</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>e3-manager-dao</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
<!-- 使用mybatis 所以需要mybatis逆向工程生成的一些接口和映射文件。所以需要依赖pojo，因为我们接口定义中肯定会用到参数和返回值，这些都有可能是我们逆向工程需要生成的pojo-->
    <dependencies>
        <dependency>
            <!--逆向工程的时候，因为我们接口定义中，肯定需要参数，返回值，这些都有可能是我们逆向工程生成的pojo -->
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-pojo</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <!-- Mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.miemiedev</groupId>
            <artifactId>mybatis-paginator</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
        </dependency>
        <!-- MySql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- 连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
    </dependencies>
    <!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>
</project>

interface

<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">
    <parent>
        <artifactId>e3-manager</artifactId>
        <groupId>cn.e3mall</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager-interface</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>e3-manager-interface</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <!-- 接口只会声明接口定义，只会用到一些方法的定义，可能会用到pojo的类作为参数和返回值-->
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-pojo</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

service

<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">
    <parent>
        <artifactId>e3-manager</artifactId>
        <groupId>cn.e3mall</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager-service</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>e3-manager-service</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-dao</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <!-- 我们把service分成 service和interface 所以要实现interface的类，也需要依赖interface-->
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-interface</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>
    </dependencies>
</project>

创建web

web选择archetype的时候，不再选择quickstart。
并且打包方式是war
依赖于service(所有依赖都传递过来了)

运行聚合项目

在common和parent项目的maven上运行clean install

选择e3-manager来配置tomcat，因为运行e3-manager-web需要前面e3-manager-pojo,e3-manager-dao,e3-manager-service,e3-manager-interface等这些模块，这些模块需要安装到本地仓库才能正常运行。如果这些模块有任何变动，都需要重新安装一次，才能生效。如果运行聚合工程e3-manager，聚合工程把这些模块都聚合到一块，任何一个模块修改了，只要运行e3-manger，不需要安装。而如果单独运行e3-manager-web，比如前面的pojo修改了，就需要重新安装pojo才能在e3-manager-web上用。

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所以用maven运行tomcat7:run的时候，因为e3-parent也没有安装在本地仓库，会报Non-resolvable parent
POM for e3-manger 所以，e3-parent需要run as maven install还有e3-common也是

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依赖改了名字，就会报错。pagehelper作者将jar包地址改了，，，一直报unresolved dependency错误


- parent是pom打包方式
- common是jar打包方式
- manager是pom打包方式
- pojo,dao,interface,service都是jar
- web是war打包方式