mvn [plugin-name]:[goal-name]
mvn compiler:compile 这里写的十分详细： https://www.tutorialspoint.com/maven/maven_quick_guide.htm--------------------------------------------
What are Maven Plugins?
Maven is actually a plugin execution framework where every task is actually done by plugins. Maven Plugins are generally used to ?
- create jar file
- create war file
- compile code files
- unit testing of code
- create project documentation
- create project reports
A plugin generally provides a set of goals, which can be executed using the following syntax ?
mvn [plugin-name]:[goal-name]
For example, a Java project can be compiled with the maven-compiler-plugin‘s compile-goal by running the following command.
mvn compiler:compile
Plugin Types
Maven provided the following two types of Plugins ?
| Sr.No. | Type & Description |
|---|---|
| 1 |
Build plugins They execute during the build process and should be configured in the <build/> element of pom.xml. |
| 2 |
Reporting plugins They execute during the site generation process and they should be configured in the <reporting/> element of the pom.xml. |
Following is the list of few common plugins ?
| Sr.No. | Plugin & Description |
|---|---|
| 1 |
clean Cleans up target after the build. Deletes the target directory. |
| 2 |
compiler Compiles Java source files. |
| 3 |
surefire Runs the JUnit unit tests. Creates test reports. |
| 4 |
jar Builds a JAR file from the current project. |
| 5 |
war Builds a WAR file from the current project. |
| 6 |
javadoc Generates Javadoc for the project. |
| 7 |
antrun Runs a set of ant tasks from any phase mentioned of the build. |
Example
We‘ve used maven-antrun-plugin extensively in our examples to print data on console. Refer Build Profiles chapter. Let us understand it in a better way and create a pom.xml in C:\MVN\project folder.
<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.companyname.projectgroup</groupId>
<artifactId>project</artifactId>
<version>1.0</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.1</version>
<executions>
<execution>
<id>id.clean</id>
<phase>clean</phase>
<goals>
<goal>run</goal>
</goals>
<configuration>
<tasks>
<echo>clean phase</echo>
</tasks>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Next, open the command console and go to the folder containing pom.xml and execute the following mvn command.
C:\MVN\project>mvn clean
Maven will start processing and displaying the clean phase of clean life cycle