我试图将一个协议缓冲区消息导入另一个协议缓冲区消息,但无法识别导入。只要我不尝试将一个protobuf导入另一个protobuf,就会生成protobuf代码(在java中),代码将按预期的方式编译和运行。
我在用:
我的gradle构建文件如下所示:
plugins {
id 'java'
id 'com.google.protobuf' version "0.8.8"
}
group 'tech.tablesaw'
version '1.0-SNAPSHOT'
sourceCompatibility = 9.0
def grpcVersion = '1.30.1' // CURRENT_GRPC_VERSION
def protobufVersion = '3.12.0'
def protocVersion = protobufVersion
repositories {
mavenCentral()
}
test {
useJUnitPlatform()
}
dependencies {
implementation "io.grpc:grpc-protobuf:${grpcVersion}"
implementation "io.grpc:grpc-stub:${grpcVersion}"
compileOnly "org.apache.tomcat:annotations-api:6.0.53"
// advanced - need this for JsonFormat
implementation "com.google.protobuf:protobuf-java-util:${protobufVersion}"
runtimeOnly "io.grpc:grpc-netty-shaded:${grpcVersion}"
testImplementation "io.grpc:grpc-testing:${grpcVersion}"
compile group: 'tech.tablesaw', name: 'tablesaw-core', version: '0.38.1'
testCompile group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.6.2'
testImplementation "org.mockito:mockito-core:2.28.2"
}
protobuf {
protoc { artifact = "com.google.protobuf:protoc:${protocVersion}" }
plugins {
grpc { artifact = "io.grpc:protoc-gen-grpc-java:${grpcVersion}" }
}
generateProtoTasks {
all()*.plugins { grpc {} }
}
}
// Inform IDEs like IntelliJ IDEA, Eclipse or NetBeans about the generated code.
sourceSets {
main {
java {
srcDirs 'build/generated/source/proto/main/grpc'
srcDirs 'build/generated/source/proto/main/java'
}
}
}
task TablesawServer(type: CreateStartScripts) {
mainClassName = 'tech.tablesaw.service.TableServiceServer'
applicationName = 'tablesaw-table-server'
outputDir = new File(project.buildDir, 'tmp')
}
task TablesawClient(type: CreateStartScripts) {
mainClassName = 'tech.tablesaw.service.TableServiceClient'
applicationName = 'tablesaw-table-client'
outputDir = new File(project.buildDir, 'tmp')
}我的梯度信息是这样的:
------------------------------------------------------------
Gradle 5.1.1
------------------------------------------------------------
Build time: 2019-01-10 23:05:02 UTC
Revision: 3c9abb645fb83932c44e8610642393ad62116807
Kotlin DSL: 1.1.1
Kotlin: 1.3.11
Groovy: 2.5.4
Ant: Apache Ant(TM) version 1.9.13 compiled on July 10 2018
JVM: 9.0.4 (Oracle Corporation 9.0.4+11)
OS: Mac OS X 10.13.5 x86_64这里是一个例子,原型。导入column_type.proto失败。
syntax = "proto3";
package tech.tablesaw.service.common;
import "tech/tablesaw/service/common/column_type.proto";
option java_multiple_files = true;
option java_package = "tech.tablesaw.service.common";
option java_outer_classname = "ColumnMetaProto";
option objc_class_prefix = "TSW";
// Proto file describing column metadata message.
// A column metadata object
message ColumnMetadata {
string name = 1;
int32 size = 2;
ColumnTypeEnum.ColumnType column_type = 3;
}下面是我要导入的文件:
syntax = "proto3";
package tech.tablesaw.service.common;
option java_multiple_files = true;
option java_package = "tech.tablesaw.service.common";
option java_outer_classname = "ColumnTypeEnum";
option objc_class_prefix = "TSW";
enum ColumnType {
SHORT = 0;
INTEGER = 1;
LONG = 2;
FLOAT = 3;
BOOLEAN = 4;
STRING = 5;
DOUBLE = 6;
LOCAL_DATE = 7;
LOCAL_TIME = 8;
LOCAL_DATE_TIME = 9;
INSTANT = 10;
TEXT = 11;
SKIP = 12;
}最后,这里是protobufs位于文件系统中的位置。
src > main > java
> proto > tech > tablesaw > service > common > column_metadata.proto
> column_type.proto发布于 2020-07-10 23:13:28
看看自述文件,它描述了如何添加其他路径。
默认情况下,intellij-protobuf-editor使用项目的配置源根作为protobuf导入路径。如果这不正确,您可以在Settings > Languages & Frameworks > Protocol Buffers中覆盖这些路径。取消选中“自动配置”并添加所需的路径。在您的例子中,您可以添加.../src/main/java/proto (其中...表示项目的基本路径)。
发布于 2020-07-10 17:22:21
在对另一个问题的评论中回答了这个问题:在.proto文件中使用导入错误
如果您正在使用IntelliJ IDEA,请转到Preferences -> Protobuf支持并将路径添加到您的.proto文件中。这将解决错误。
在Intellij的更现代版本中,这是在插件intellij编辑器中完成的。我将路径添加到我的proto源文件夹的根目录中,一切都很好。
发布于 2021-06-24 11:41:49
想描述一下是什么帮助了我,因为我在这里找不到答案。我的脚步是为Maven准备的,但我认为对Gradle来说也是一样的。
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>
<artifactId>protobuf-maven-plugin</artifactId>
<version>0.6.1</version>
<configuration>
<protocArtifact>com.google.protobuf:protoc:3.12.2:exe:${os.detected.classifier}</protocArtifact>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
</plugin>build部分中是否有此分机 <build>
<extensions>
<extension>
<groupId>kr.motd.maven</groupId>
<artifactId>os-maven-plugin</artifactId>
<version>1.6.1</version>
</extension>
</extensions>
....mvn protobuf:compilehttps://stackoverflow.com/questions/62837953
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