环境: sbt， scala 2.10.4
1.
vi project/scalapb.sbt
addSbtPlugin(“com.thesamet” % “sbt-protoc” % “0.99.1”)
libraryDependencies += “com.trueaccord.scalapb” %% “compilerplugin” % “0.5.43”
2.
vi build.sbt
PB.targets in Compile := Seq(
scalapb.gen() -> (sourceManaged in Compile).value
)
// If you need scalapb/scalapb.proto or anything from google/protobuf/*.proto
//ScalaPB looks for protocol buffer files in src/main/protobuf, but this can be customized. Running the compile command in sbt will both generate Scala sources from your protos and compile them.
libraryDependencies += “com.trueaccord.scalapb” %% “scalapb-runtime” % com.trueaccord.scalapb.compiler.Version.scalapbVersion % “protobuf”
3.
mkdir src/main/protobuf
vi src/main/protobuf/hello.proto
syntax = “proto3”;
package example;
message HelloRequest {
string name = 1;
}
sbt assembly
生成的scala文件放在 target/scala-2.10/src_managed/main/example/hello/HelloRequest.scala
4.
使用如下
import hello._
val h = HelloRequest().withName(“hq”)
val hba = h.toByteArray
println(hba) //serialize
println(HelloRequest.parseFrom(hba).name) //unserialize
