搭建 go-micro环境
安装micro
go get -u -v github.com/micro/micro
go get -u -v github.com/micro/go-micro@v1.8.0
go get -u -v github.com/micro/go-plugins
go install github.com/micro/micro/v3@latest
安装 protoc 访问如下网址
https://github.com/protocolbuffers/protobuf/releases
下载,不同的版本文件名称不一样,我们这里选择protoc-3.9.1-win64.zip
protoc-3.9.1-win64.zip
解压到目标文件架,我们以e:\dev为例
e:\dev\protoc-3.9.1-win64
添加e:\dev\protoc-3.9.1-win64\bin到环境变量path
安装protoc-gen-micro插件
go get -u -v github.com/micro/protoc-gen-micro
安装 consul
下载windows版本
https://www.consul.io/downloads.html
解压到
e:\dev\consul
添加e:\dev\consul到环境变量path 使用如下指查看是否安装成功,如下所示安装成功
>consul
Usage: consul [--version] [--help] <command> [<args>]
Available commands are:
acl Interact with Consul's ACLs
agent Runs a Consul agent
catalog Interact with the catalog
config Interact with Consul's Centralized Configurations
connect Interact with Consul Connect
debug Records a debugging archive for operators
hello,world
创建微服务
使用如下指令创建微服务
>micro new techidea8.com/microapp/hello
Creating service go.micro.srv.hello in E:\winlion\gopath\src\techidea8.com\microapp\hello
.
├── main.go
├── plugin.go
├── handler
│ └── hello.go
├── subscriber
│ └── hello.go
├── proto\hello
│ └── hello.proto
├── Dockerfile
├── Makefile
├── README.md
└── go.mod
download protobuf for micro:
brew install protobuf
go get -u github.com/golang/protobuf/{proto,protoc-gen-go}
go get -u github.com/micro/protoc-gen-micro
compile the proto file hello.proto:
cd E:\winlion\gopath\src\techidea8.com\microapp\hello
protoc --proto_path=.:$GOPATH/src --go_out=. --micro_out=. proto/hello/hello.proto
生成适配proto的golang代码
注意:在win系统下$GOPATH环境变量无效,因此如上脚本将创建微服务失败,因此我们需要对如上脚本进行处理
#切换到项目目录下
>cd /d E:\winlion\gopath\src\techidea8.com\microapp\hello
# 根据proto生成文件
>protoc --proto_path=. --go_out=. --micro_out=. proto/hello/hello.proto
启动应用
>go run main.go
2019/08/19 13:00:46 Transport [http] Listening on [::]:54689
2019/08/19 13:00:46 Broker [http] Connected to [::]:54690
2019/08/19 13:00:46 Registry [mdns] Registering node: go.micro.srv.hello-4851dce2-ab5d-4e4c-801e-44dae5d93f26
2019/08/19 13:00:46 Subscribing go.micro.srv.hello-4851dce2-ab5d-4e4c-801e-44dae5d93f26 to topic: go.micro.srv.hello
2019/08/19 13:00:46 Subscribing go.micro.srv.hello-4851dce2-ab5d-4e4c-801e-44dae5d93f26 to topic: go.micro.srv.hello
查看是否启动
>micro list services
go.micro.srv.hello
topic:go.micro.srv.hello
启动restful api接口支持支持
注意其中的--namespace参数,我们每一个微服务都属于一个命名空间,通过api暴露出来该命名空间后,满足go.micro.srv.*格式的微服务都可以访问。如 go.micro.srv.hello
可以通过如下格式访问
http://127.0.0.1:8080/user/call
>micro api --namespace=go.micro.srv
2019/08/19 13:07:11 Registering API Default Handler at /
2019/08/19 13:07:11 HTTP API Listening on [::]:8080
2019/08/19 13:07:11 Transport [http] Listening on [::]:54934
2019/08/19 13:07:11 Broker [http] Connected to [::]:54935
2019/08/19 13:07:11 Registry [mdns] Registering node: go.micro.api-1753185c-b8e1-49c4-aa0f-617f243a8e2a
测试 restd插件请求接口