ScalaPB生成scala的protobuf文件

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

Clojure运行环境在windows上安装

环境:windows 7

有时需要在windows上环境上编写clojure代码,因此需要在这个环境上安装clojure运行环境

方法一:

1. 首先安装curl工具

2. 从https://raw.githubusercontent.com/technomancy/leiningen/stable/bin/lein.bat 下载文件lein.bat

3. 设置环境变量
set HTTP_CLIENT=curl –proxy-ntlm –insecure -f -L -o
set HTTPS_PROXY=

3. 安装 lein.bat self-install

4. 进入交互环境
lein new project_name
lein.bat repl

方法二:

1. 直接下载clojure-x.x.x.jar文件

2. 启动交互环境
java -jar clojure-x.x.x.jar