so-im/im-service-api/im-entry-protocol/pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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">
    <parent>
        <artifactId>im-service-api</artifactId>
        <groupId>net.sopod</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>im-entry-protocol</artifactId>

    <dependencies>
        <dependency>
            <groupId>net.sopod</groupId>
            <artifactId>im-common</artifactId>
            <version>${soim.version}</version>
        </dependency>
        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-buffer</artifactId>
            <version>${netty.version}</version>
        </dependency>
        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-codec</artifactId>
            <version>${netty.version}</version>
        </dependency>
        <dependency>
            <groupId>io.netty</groupId>
            <artifactId>netty-transport</artifactId>
            <version>${netty.version}</version>
        </dependency>
        <dependency>
            <groupId>com.google.protobuf</groupId>
            <artifactId>protobuf-java</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>org.reflections</groupId>
            <artifactId>reflections</artifactId>
        </dependency>
    </dependencies>

    <build>
        <extensions>
            <extension>
                <groupId>kr.motd.maven</groupId>
                <artifactId>os-maven-plugin</artifactId><!--引入操作系统os设置的属性插件,否则${os.detected.classifier} 操作系统版本会找不到 -->
                <version>1.6.1</version>
            </extension>
        </extensions>
        <plugins>
            <!--添加编译proto文件的编译程序和对应的编译插件-->
            <plugin>
                <groupId>org.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.6.1</version>
                <configuration>
                    <protocArtifact>com.google.protobuf:protoc:${protoc.version}:exe:${os.detected.classifier}</protocArtifact>
                    <protoSourceRoot>src/main/resources</protoSourceRoot>
                    <outputDirectory>src/main/java</outputDirectory>
                    <clearOutputDirectory>false</clearOutputDirectory>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <!-- <goal>compile</goal> -->
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>