Generate-protobuf in Maven

There are 2 ways to Generate-protobuf in Maven

1 is a MAVEN plugin that uses PROTOBUF, but the author is the Maven2 plugin for the development, and has not been updated for 2 years

So I chose the second method is to use the Mavn ant plug-in, the entire configuration and ant very much like, a little adjustment can be configured as follows

<plugin> <artifactId>maven-antrun-plugin</artifactId> <executions> &LT;EXECUTION&G
            T <id>compile-protoc</id> <phase>generate-sources</phase> <configuration&
                Gt 
                        <tasks> <mkdir dir= "Src/main/gen-java"/> <path id= "Proto.path" > <fileset dir= "Src/main/proto" > <include name= "**/*.proto"/&
                        Gt
                        </fileset> </path> <pathconvert pathsep= "" property= "Proto.files"
                        Refid= "Proto.path"/> <exec executable= "Protoc" > <arg value= "--java_out=src/main/gen-java"/> <arg value= "-i${project.basedir}/src/mai
        N/proto "/> <arg line=" ${proto.files} "/>            </exec> </tasks> <sourceroot>src/main/gen-java</sourceroo
            t> </configuration> <goals> <goal>run</goal> </goals> </execution> </executions> </plugin>

The lifecycle is tied to generate-sources, as long as Maven generate-sources is executed.

The proto file is placed under MAVEN's specifications under the Src/main/proto folder, and the resulting Java file is Src/main/gen-java

Automatically generated files will have to be automatically deleted

<plugin>
    <artifactId>maven-clean-plugin</artifactId>
    <configuration>
        < verbose>true</verbose>
        <filesets>
            <fileset>
                <directory>src/main/ gen-java</directory>
            </fileset>
        </filesets>
    </configuration>
</ Plugin>

Delete the Gen-java folder while executing maven clean