1.pom.xml 中添加如下属性配置:
<properties>
<!-- protobuf paths -->
<protobuf.input.directory>${project.basedir}/src/main/protobuf</protobuf.input.directory>
<protobuf.output.directory>${project.build.directory}/generated-sources</protobuf.output.directory>
<!-- library versions -->
<build-helper-maven-plugin.version>3.0.0</build-helper-maven-plugin.version>
<maven-antrun-plugin.version>1.8</maven-antrun-plugin …