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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

image