Maven installs the jar that it writes to the MAVEN repository (also includes the source of the jar package)

Maven can install its own jar file into its own local repository through the install command

It can be used in idea.

You can make your own code into a jar package and install it in a local warehouse.

If the source of the jar package is also installed in the local warehouse.

You need to add the following code

<plugin>
			  <groupId>org.apache.maven.plugins</groupId>
			  <artifactId> maven-source-plugin</artifactid>
			  <version>2.1.2</version>
			  <executions>
				<execution>
				  <id>attach-sources</id>
				  <phase>verify</phase>
				  <goals >
					<goal>jar-no-fork</goal>
				  </goals>
				</execution>
			  </executions >
			</plugin>

In the Pom.xml file.

<build>

<plugins>

</plugins>

</build>

Add to the fragment to add ...