Protobuf - 整合grpc - 《刻意练习系列》

POM

<?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">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.semonx</groupId>
    <artifactId>grpc-demo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <!-- 指定版本为1.8 -->
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <!--项目编码改为UTF-8 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-netty-shaded</artifactId>
            <version>1.31.0</version>
        </dependency>
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-protobuf</artifactId>
            <version>1.31.0</version>
        </dependency>
        <dependency>
            <groupId>io.grpc</groupId>
            <artifactId>grpc-stub</artifactId>
            <version>1.31.0</version>
        </dependency>
<!--        <dependency> &lt;!&ndash; necessary for Java 9+ &ndash;&gt;-->
<!--            <groupId>org.apache.tomcat</groupId>-->
<!--            <artifactId>annotations-api</artifactId>-->
<!--            <version>6.0.53</version>-->
<!--            <scope>provided</scope>-->
<!--        </dependency>-->
    </dependencies>
    <build>
        <extensions>
            <extension>
                <groupId>kr.motd.maven</groupId>
                <artifactId>os-maven-plugin</artifactId>
                <version>1.6.2</version>
            </extension>
        </extensions>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
            </plugin>
            <plugin>
                <groupId>org.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.6.1</version>
                <extensions>true</extensions>
                <configuration>
                    <!-- 基础配置 -->
                    <protocArtifact>com.google.protobuf:protoc:3.12.0:exe:${os.detected.classifier}</protocArtifact>
                    <pluginId>grpc-java</pluginId>
                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.31.0:exe:${os.detected.classifier}</pluginArtifact>
                    <!-- 配置.proto所在路径 -->
                    <protoSourceRoot>${project.basedir}/proto-src</protoSourceRoot>
                    <!-- 配置代码生成的根目录，如果.proto中设置了package或option java_package，会在根目录下生成层级目录 -->
                    <outputDirectory>${project.build.sourceDirectory}</outputDirectory>
                    <!-- 设置是否在生成java文件之前清空outputDirectory的文件，默认值为true，设置为false时也会覆盖同名文件 -->
                    <!-- 最好设置成false，避免.proto文件中忘记写包导致源码目录被清掉 -->
                    <clearOutputDirectory>false</clearOutputDirectory>
                    <!-- 临时文件生成路径 -->
                    <temporaryProtoFileDirectory>${project.build.directory}/protoc-temp</temporaryProtoFileDirectory>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>compile-custom</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>