Use the JSR305 Maven plug -in to implement the Maven Mojo framework in the Java class library
Use the JSR305 Maven plug -in to implement the Maven Mojo framework in the Java class library
Maven is a popular construction tool to manage the construction, dependence and documentation of the Java project.Maven uses a plug -in mechanism, where Mojo is the execution unit of Maven plug -in.JSR305 is part of the Java language specification, which provides a set of ways to properly annotate program elements.
In this article, we will introduce how to use the JSR305 Maven plug -in to achieve a Java class library based on the Maven Mojo framework.
First, we need to add the configuration of the JSR305 Maven plugin to the pom.xml file of the project.The Groupid of the plug-in is org.codehaus.mojo, and Artifactid is JSR305-Maven-Plugin. The version number can be adjusted as needed.The configuration is as shown below:
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jsr305-maven-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<goals>
<goal>check</goal>
</goals>
<configuration>
<!-Configure the parameters of the plug-in->
<failOnError>true</failOnError>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
In the configuration, we can determine whether the plugin is terminated when the plug -in is terminated when the plug -in is terminated during the check.
Next, we can use the JSR305 annotation in the code of the Java library.For example, we can use @NONNULL annotations to mark the method parameters, return values or fields, indicating that they cannot be null.The example code is as follows:
import javax.annotation.Nonnull;
public class ExampleClass {
public void exampleMethod(@Nonnull String param) {
// Method implementation
}
}
In this example, we use the @Nonnull annotation to mark the param parameter of the ExampleMethod method to indicate that the parameter cannot be NULL.
When we build a project, the JSR305 Maven plug -in will automatically start and check the annotations in the code.If the plug -in is found to be improperly used, for example, if the parameter is NULL, the plug -in will report an error and throw an abnormality during the construction process.
By using the JSR305 Maven plugin, we can provide better code constraints and documents in the Java class library.The plug -in will be automatically conducted during the construction process and helps developers find potential problems in time.
To sum up, this article introduces how to achieve the Maven Mojo framework in the Java class library through the JSR305 Maven plug -in.By adding a plug -in configuration and using the JSR305 annotation in the code, we can conduct annotations during the construction process to improve the quality and reliability of the code.
