IntelliJ IDEA打开多个Maven的module且相互调用代码的方法

###1、需求

1、intellij idea打开多个项目
2、每个同学开发一个项目，相互之前独立不影响
3、通过一个入口可以调用所有项目类、方法、属性，达到同时开发且检测代码
4、dependency只需要写一份，其余项目不用写，便可全部依赖

###2、注意事项（非常重要）

6个坑：

1、<groupid>com.yh.bi</groupid>
项目中所有的groupid要一样

2、避免循环依赖，导致程序报错

3、<scope>provided</scope>
打包的服务器运行时候需要provided，本机调试的时候，需要注释
在一个maven项目中，如果存在编译需要而发布不需要的jar包，可以用scope标签，值设为provided

4、项目、module建好之后需要添加scala的框架支持

5、在yhproject中，可以统一对所有的module进行清理、编译、打包

6、要运行依赖中的module，则必须要将module中的jar包，打到maven中，需要使用install

下面，是我将所有module中的jar打到maven中的路径：

###3、建立project和建立module

1、只需要建立一个项目，其他项目由module建立，所有module且放在项目中。
2、本文项目为yhproject，其余都为module，分别是：mainentrance、yhutils、yhapp、yhweb、yhgame

项目建立步鄹：

module建立步鄹：

项目、所有module、部分module代码展示：

###4、项目之前的依赖关系

###5、代码展示

mainentrance

package com.yh.bi.dag

package com.yh.bi.dag

/**
 * created by yuhui on 2017/2/10.
 */
import java.time.{duration, localdate}
import com.yh.bi._
import com.yh.bi.{userapp, usergame, userweb}
import org.slf4j.loggerfactory

import scala.collection.immutable.{listmap, listset}

/**
 * created by yuhui on 2016/8/25.
 * task --> node --> dag --> dagexecutor
 */

case class node[t](task: t, parent: t*) {
 override def tostring: string = {
 s"$task(${parent.mkstring(",")})"
 }
}

case class dag[t](nodes: node[t]*)

case class dagexecutor[t](dag: dag[t]) {
 private val log = loggerfactory.getlogger(this.getclass)
 private val _nodes: map[t, seq[t]] = dag.nodes.map(node => (node.task, node.parent.filter(_ != null))).tomap
 private var _pending: set[t] = listset()
 private var _fails = listmap[t, string]()
 private var _success = seq[t]()

 //判断node的task节点的父节点运行状态（flase ，true）
 private def getpending: option[t] = {
 _pending.find { name =>
  val parents = _nodes(name)
  !parents.exists(name => !_success.contains(name))
 }
 }

 private def fail(name: t, message: string): unit = {
 _pending -= name
 _fails += name -> message
 for (child <- _pending.filter(child => _nodes(child).contains(name))) {
  fail(child, s"依赖的任务无法执行: $name")
 }
 }

 private def success(name: t): unit = {
 _pending -= name
 _success = _success :+ name
 }

 def execute(func: t => unit): unit = {
 _pending = _nodes.keyset
 _fails = listmap()
 _success = seq()
 var running = true

 while (running) {
  val taskopt = getpending
  if (taskopt.nonempty) {
  val task = taskopt.get
  val startmills = system.currenttimemillis()
  log.info("start task {}", task)
  try {
   println("=============")
   func(task) //执行executor方法
   println("+++++++++++++")
   val time = duration.ofmillis(system.currenttimemillis() - startmills)
   log.info(s"end task $task time=$time")
   success(task)
  } catch {
   case e: throwable => fail(task, e.getmessage)
   log.error(e.getmessage, e)
   log.info(s"fail task $task")
  }
  } else {
  running = false
  }
 }

 for (name <- _success) {
  log.info(s"success task: $name")
 }
 for (name <- _fails) {
  log.info(s"fail task: ${name._1} - ${name._2}")
 }
 }
}

object dag {
 val allsdkdag = new dag[task](
 node(userapp),
 node(usergame),
 node(userweb)
 )

 def main(args: array[string]): unit = {
 dagexecutor(allsdkdag).execute { task =>task.executor("appkey": string, localdate.now(), localdate.now())}
 }
}

yhutils

package com.yh.bi

/**
 * created by yuhui on 2017/2/10.
 */
import java.time.localdate
import org.apache.spark.sql.sqlcontext
import org.slf4j.loggerfactory

abstract class executor extends task with sqlcontextaware {

 override def run(appkey: string, startday: localdate, endday: localdate)={}

}

trait sqlcontextaware {
 implicit var ctx: sqlcontext = _
}


abstract class task {

 protected val log = loggerfactory.getlogger(this.getclass)

 def executor(appkey: string, startday: localdate, endday: localdate): unit

 def run(appkey: string, startday: localdate, endday: localdate): unit = {
 executor(appkey, startday, endday)
 }

}

yhapp

package com.yh.bi

/**
 * created by yuhui on 2017/2/10.
 */
import java.time.localdate

object userapp extends executor{

 override def executor(appkey: string, startday: localdate, endday: localdate): unit = {

 println("++++我的userapp的执行过程++++")

 }

}

yhweb

package com.yh.bi

import java.time.localdate

object userweb extends executor{

 override def executor(appkey: string, startday: localdate, endday: localdate): unit = {

 println("++++我的userweb的执行过程++++")

 }

}

yhgame

package com.yh.bi

/**
 * created by yuhui on 2017/2/10.
 */
import java.time.localdate

object usergame extends executor{

 override def executor(appkey: string, startday: localdate, endday: localdate): unit = {

 println("++++我的usergame的执行过程++++")

 }

}

###6、项目中pom依赖展示

yhproject中pom文件展示：

<?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.yh.bi</groupid>
 <artifactid>yhproject</artifactid>
 <packaging>pom</packaging>
 <version>1.0</version>

 <modules>
  <module>mainentrance</module>
  <module>yhapp</module>
  <module>yhweb</module>
  <module>yhgame</module>
  <module>yhutils</module>
 </modules>
</project>

mainentrance中pom文件展示：

<?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>
 <artifactid>mainentrance</artifactid>
 <groupid>com.yh.bi</groupid>
 <version>1.0</version>

 <dependencies>
  <dependency>
   <artifactid>yhutils</artifactid>
   <groupid>com.yh.bi</groupid>
   <version>1.0</version>
   <!--<scope>provided</scope> //本机调试则注释， 集群运行则解开-->
  </dependency>

  <dependency>
   <artifactid>yhapp</artifactid>
   <groupid>com.yh.bi</groupid>
   <version>1.0</version>
   <!--<scope>provided</scope>-->
  </dependency>

  <dependency>
   <artifactid>yhgame</artifactid>
   <groupid>com.yh.bi</groupid>
   <version>1.0</version>
   <!--<scope>provided</scope>-->
  </dependency>

  <dependency>
   <artifactid>yhweb</artifactid>
   <groupid>com.yh.bi</groupid>
   <version>1.0</version>
   <!--<scope>provided</scope>-->
  </dependency>
 </dependencies>

 <build>
  <plugins>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-compiler-plugin</artifactid>
    <configuration>
     <source>1.8</source>
     <target>1.8</target>
    </configuration>
   </plugin>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-shade-plugin</artifactid>
    <version>2.4</version>
    <configuration>
     <filters>
      <filter>
       <artifact>*:*</artifact>
       <excludes>
        <exclude>**/log4j2.*</exclude>
        <exclude>meta-inf/*.sf</exclude>
        <exclude>meta-inf/*.dsa</exclude>
        <exclude>meta-inf/*.rsa</exclude>
       </excludes>
      </filter>
     </filters>
     <!-- put your configurations here -->
    </configuration>
    <executions>
     <execution>
      <phase>package</phase>
      <goals>
       <goal>shade</goal>
      </goals>
      <configuration>
       <outputfile>${project.build.directory}/${project.artifactid}.jar
       </outputfile>
      </configuration>
     </execution>
    </executions>
   </plugin>

  </plugins>

  <sourcedirectory>src/main/scala</sourcedirectory>
  <resources>
   <resource>
    <directory>${basedir}/src/main/resources</directory>
    <includes>
     <include>**/*</include>
    </includes>
   </resource>
  </resources>

 </build>


</project>

yhutils中pom文件展示：

<?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">
 <parent>
  <artifactid>yhproject</artifactid>
  <groupid>com.yh.bi</groupid>
  <version>1.0</version>
 </parent>

 <modelversion>4.0.0</modelversion>
 <artifactid>yhutils</artifactid>

 <dependencies>
  <dependency>
   <groupid>org.apache.spark</groupid>
   <artifactid>spark-hive_2.11</artifactid>
   <version>1.6.1</version>
  </dependency>
 </dependencies>

 <build>
  <plugins>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-compiler-plugin</artifactid>
    <configuration>
     <source>1.8</source>
     <target>1.8</target>
    </configuration>
   </plugin>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-shade-plugin</artifactid>
    <version>2.4</version>
    <configuration>
     <filters>
      <filter>
       <artifact>*:*</artifact>
       <excludes>
        <exclude>**/log4j2.*</exclude>
        <exclude>meta-inf/*.sf</exclude>
        <exclude>meta-inf/*.dsa</exclude>
        <exclude>meta-inf/*.rsa</exclude>
       </excludes>
      </filter>
     </filters>
     <!-- put your configurations here -->
    </configuration>
    <executions>
     <execution>
      <phase>package</phase>
      <goals>
       <goal>shade</goal>
      </goals>
      <configuration>
       <outputfile>${project.build.directory}/${project.artifactid}.jar
       </outputfile>
      </configuration>
     </execution>
    </executions>
   </plugin>

  </plugins>

  <sourcedirectory>src/main/scala</sourcedirectory>
  <resources>
   <resource>
    <directory>${basedir}/src/main/resources</directory>
    <includes>
     <include>**/*</include>
    </includes>
   </resource>
  </resources>

 </build>
</project>

yhapp中pom文件展示：

<?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.yh.bi</groupid>
 <artifactid>yhapp</artifactid>
 <version>1.0</version>

 <dependencies>
  <dependency>
   <artifactid>yhutils</artifactid>
   <groupid>com.yh.bi</groupid>
   <version>1.0</version>
   <scope>provided</scope>
  </dependency>
 </dependencies>
 <build>
  <plugins>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-compiler-plugin</artifactid>
    <configuration>
     <source>1.8</source>
     <target>1.8</target>
    </configuration>
   </plugin>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-shade-plugin</artifactid>
    <version>2.4</version>
    <configuration>
     <filters>
      <filter>
       <artifact>*:*</artifact>
       <excludes>
        <exclude>**/log4j2.*</exclude>
        <exclude>meta-inf/*.sf</exclude>
        <exclude>meta-inf/*.dsa</exclude>
        <exclude>meta-inf/*.rsa</exclude>
       </excludes>
      </filter>
     </filters>
     <!-- put your configurations here -->
    </configuration>
    <executions>
     <execution>
      <phase>package</phase>
      <goals>
       <goal>shade</goal>
      </goals>
      <configuration>
       <outputfile>${project.build.directory}/${project.artifactid}.jar
       </outputfile>
      </configuration>
     </execution>
    </executions>
   </plugin>

  </plugins>

  <sourcedirectory>src/main/scala</sourcedirectory>
  <resources>
   <resource>
    <directory>${basedir}/src/main/resources</directory>
    <includes>
     <include>**/*</include>
    </includes>
   </resource>
  </resources>

 </build>

</project>

yhweb中pom文件展示：

<?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.yh.bi</groupid>
 <artifactid>yhweb</artifactid>
 <version>1.0</version>

 <dependencies>
  <dependency>
   <artifactid>yhutils</artifactid>
   <groupid>com.yh.bi</groupid>
   <version>1.0</version>
   <scope>provided</scope>
  </dependency>
 </dependencies>
 <build>
  <plugins>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-compiler-plugin</artifactid>
    <configuration>
     <source>1.8</source>
     <target>1.8</target>
    </configuration>
   </plugin>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-shade-plugin</artifactid>
    <version>2.4</version>
    <configuration>
     <filters>
      <filter>
       <artifact>*:*</artifact>
       <excludes>
        <exclude>**/log4j2.*</exclude>
        <exclude>meta-inf/*.sf</exclude>
        <exclude>meta-inf/*.dsa</exclude>
        <exclude>meta-inf/*.rsa</exclude>
       </excludes>
      </filter>
     </filters>
     <!-- put your configurations here -->
    </configuration>
    <executions>
     <execution>
      <phase>package</phase>
      <goals>
       <goal>shade</goal>
      </goals>
      <configuration>
       <outputfile>${project.build.directory}/${project.artifactid}.jar
       </outputfile>
      </configuration>
     </execution>
    </executions>
   </plugin>

  </plugins>

  <sourcedirectory>src/main/scala</sourcedirectory>
  <resources>
   <resource>
    <directory>${basedir}/src/main/resources</directory>
    <includes>
     <include>**/*</include>
    </includes>
   </resource>
  </resources>

 </build>

</project>

yhgame中pom文件展示：

<?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.yh.bi</groupid>
 <artifactid>yhgame</artifactid>
 <version>1.0</version>

 <dependencies>
  <dependency>
   <artifactid>yhutils</artifactid>
   <groupid>com.yh.bi</groupid>
   <version>1.0</version>
   <scope>provided</scope>
  </dependency>
 </dependencies>
  <build>
  <plugins>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-compiler-plugin</artifactid>
    <configuration>
     <source>1.8</source>
     <target>1.8</target>
    </configuration>
   </plugin>
   <plugin>
    <groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-shade-plugin</artifactid>
    <version>2.4</version>
    <configuration>
     <filters>
      <filter>
       <artifact>*:*</artifact>
       <excludes>
        <exclude>**/log4j2.*</exclude>
        <exclude>meta-inf/*.sf</exclude>
        <exclude>meta-inf/*.dsa</exclude>
        <exclude>meta-inf/*.rsa</exclude>
       </excludes>
      </filter>
     </filters>
     <!-- put your configurations here -->
    </configuration>
    <executions>
     <execution>
      <phase>package</phase>
      <goals>
       <goal>shade</goal>
      </goals>
      <configuration>
       <outputfile>${project.build.directory}/${project.artifactid}.jar
       </outputfile>
      </configuration>
     </execution>
    </executions>
   </plugin>

  </plugins>

  <sourcedirectory>src/main/scala</sourcedirectory>
  <resources>
   <resource>
    <directory>${basedir}/src/main/resources</directory>
    <includes>
     <include>**/*</include>
    </includes>
   </resource>
  </resources>

 </build>

</project>

###7、运行结果展示

注意：我在mainentrance执行dag中的main文件，可以调用且执行了yhutils、yhapp、yhweb、yhgame中的代码

###8、如果建立java 的module

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。