java intellij

hgqdbh6s 于 2021-07-11 发布在 Java

关注(0)|答案(2)|浏览(342)

我遵循grpc的这个教程，我的问题是当我运行“mvnprotobuf:compile“文件是在目标文件夹中生成的，我不知道如何将代码生成到java目录，这是我的pom文件

<dependencies>
    <!-- https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java-util -->
    <dependency>
        <groupId>com.google.protobuf</groupId>
        <artifactId>protobuf-java-util</artifactId>
        <version>4.0.0-rc-2</version>
    </dependency>

    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-netty-shaded</artifactId>
        <version>1.33.1</version>
    </dependency>
    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-protobuf</artifactId>
        <version>1.33.1</version>
    </dependency>
    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-stub</artifactId>
        <version>1.33.1</version>
    </dependency>
    <dependency> <!-- necessary for Java 9+ -->
        <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.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.6.1</version>
                <configuration>
                    <protocArtifact>com.google.protobuf:protoc:3.12.0:exe:${os.detected.classifier}</protocArtifact>
                    <pluginId>grpc-java</pluginId>
                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.33.1:exe:${os.detected.classifier}</pluginArtifact>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>compile-custom</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

这是我的原始文件，
这是我的问题，

1- The sources are generated in the target folder, I can import them just fine but why in Google docs it shows in the main/java/io..etc folder?
2- stubs like RouteGuideBlockingStub are not getting generated with mvn protobuf:compile, should I be using something else?

Java intellij-idea grpc

来源：https://stackoverflow.com/questions/64950415/grpc-generate-sources-java-intellij

2条答案

按热度按时间

mnemlml81#

生成的源代码并不是真正有用的，除非您希望将代码作为一个包含源代码的库分发。生成的类足以与grpc一起工作。项目建设速度更快。 protobuf-maven-plugin 可以配置为使用您选择的路径通过 outputDirectory 在插件配置部分。
只是不要把它们放进你的源文件夹。 protobuf:compile 只会得到protobuf定义。为了得到你需要的grpc存根 compile-custom 生成中配置的目标。
通常不需要单独调用它们，只需编译整个项目就可以了。

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wb1gzix02#

正如在关于proto文件的目录结构限制的另一个答案中已经提到的，下面是应该如何配置pom.xml文件来编译生成的类并将其定位到java类文件中。
为了编译和生成必要的类文件，需要以下依赖项。

<dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-netty-shaded</artifactId>
        <version>1.33.1</version>
    </dependency>
    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-protobuf</artifactId>
        <version>1.33.1</version>
    </dependency>
    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-stub</artifactId>
        <version>1.33.1</version>
    </dependency>
    <dependency>
        <groupId>com.google.protobuf</groupId>
        <artifactId>protobuf-java</artifactId>
        <version>3.14.0</version>
    </dependency>
    <dependency>
        <groupId>com.google.protobuf</groupId>
        <artifactId>protobuf-java-util</artifactId>
        <version>3.14.0</version>
    </dependency>

您还需要以下2个插件：

<build>
  ...
  <plugins>
    ...
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>3.2.0</version>
                <executions>
                    <execution>
                        <id>test</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>add-source</goal>
                        </goals>
                        <configuration>
                            <sources>
                                <source>${basedir}/target/generated-sources</source>
                            </sources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.6.1</version>
                <configuration>
                    <protocArtifact>com.google.protobuf:protoc:3.11.0:exe:${os.detected.classifier}</protocArtifact>
                    <pluginId>grpc-java</pluginId>
                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.27.2:exe:${os.detected.classifier}</pluginArtifact>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>compile-custom</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

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