I am following the link https://github.com/grpc/grpc-java/tree/master/examples/src/main/java/io/grpc/examples/helloworld here to try to get grpc working.
this is the final folder structure.
And my HelloWorldServer.java is the same as https://github.com/grpc/grpc-java/blob/master/examples/src/main/java/io/grpc/examples/helloworld/HelloWorldServer.java, except the package name.
but Intellij tells that it cannot resolve symbol GreeterGrpc.
Could someone help me out of here please?
The Protobuf plugin assumes Protobuf files (*.proto) are organized in the same way as Java source files, in sourceSets. The Protobuf files of a sourceSet are compiled in a single protoc run, and the generated files are added to the input of the Java compilation run of that sourceSet ().
sourceSets {
main {
java {
srcDirs 'build/generated/source/proto/main/grpc'
srcDirs 'build/generated/source/proto/main/java'
}
}
}
Thanks to @https://medium.com/@DivyaJaisawal/generate-java-code-from-proto-file-using-gradle-1fb9fe64e046
For me, first of all a problem (in Eclipse) was using single quotes around $ variables. My working gradle.build to compile proto files to Java classes in a custom directory was this:
protobuf {
protoc { artifact = "com.google.protobuf:protoc:${protocVersion}" }
plugins {
grpc { artifact = "io.grpc:protoc-gen-grpc-java:${grpcVersion}" }
}
generatedFilesBaseDir = "$projectDir/gensrc"
generateProtoTasks {
all()*.plugins { grpc {} }
}
}
// Inform IDEs like IntelliJ IDEA, Eclipse or NetBeans about the generated code.
sourceSets {
main {
java {
srcDirs "${protobuf.generatedFilesBaseDir}/main/java"
srcDirs "${protobuf.generatedFilesBaseDir}/main/grpc"
}
}
}
Then Eclipse could not tell these were source files. I had to refresh the project:
Then add the custom files to the build path
