1.在IDE上面按照protobuf插件

2.在POM文件填加下面插件和jar包

 <properties>
        <scala.version>2.11.12</scala.version>
        <spark.version>2.1.0.5</spark.version>
        <grpc.version>1.6.1</grpc.version>
        <protobuf.version>3.1.0</protobuf.version>
    </properties>
<dependencies>
    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-netty</artifactId>
        <version>${grpc.version}</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-protobuf</artifactId>
        <version>${grpc.version}</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-stub</artifactId>
        <version>${grpc.version}</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.google.protobuf</groupId>
        <artifactId>protobuf-java</artifactId>
        <version>${protobuf.version}</version>
    </dependency>
</dependencies>
    <build>
        <extensions>
            <extension>
                <groupId>kr.motd.maven</groupId>
                <artifactId>os-maven-plugin</artifactId>
                <version>1.5.0.Final</version>
            </extension>
        </extensions>
        <plugins>
            <plugin>
                <groupId>org.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.5.0</version>
                <configuration>
                    <protocArtifact>com.google.protobuf:protoc:${protobuf.version}:exe:${os.detected.classifier}</protocArtifact>
                    <pluginId>grpc-java</pluginId>
                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:${grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>compile-custom</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <configuration>
                        <source>8</source>
                        <target>8</target>
                    </configuration>
                </plugin>
        </plugins>
    </build>

3.打开maven工具自动编译proto文件

4.测试proto
proto文件

新将1、2后，双击3，在4处生成Java类，将生成的Java类复制到5处。
5.测试样例

public static void main(String[] args) {
PersonModel.Person person = PersonModel.Person.newBuilder().setId(2).setName(“test”)
.setEmail("test@163.com").build();
byte[] results = person.toByteArray();
try {
PersonModel.Person person1=PersonModel.Person.parseFrom(results);
System.out.println(person1);
} catch (InvalidProtocolBufferException e) {
e.printStackTrace();
}
}