以下对应 example/web 例子：
main.go 代码如下：
package mainimport ("fmt""log""net/http""github.com/micro/go-micro/web"
)func helloWorldHandler(w http.ResponseWriter, r *http.Request) {fmt.Fprint(w, `<html><body><h1>Hello World</h1></body></html>`)
}func main() {service := web.NewService(web.Name("helloworld"),)service.HandleFunc("/", helloWorldHandler)if err := service.Init(); err != nil {log.Fatal(err)}if err := service.Run(); err != nil {log.Fatal(err)}
}
运行：
2020-01-09 17:52:58.159564 I | Listening on [::]:54815
访问： localhost:54815;
--------------------------------------------
以下对应 example/form 例子：
这个例子， 展示了 如何 使用 web services 和 api services 展示 一个 form 表单，并post 提交;
//有接口有页面，有点像 web 页面应用 ； //当然 api services 是 很通用的。
目录结构，如下：
web/main.go 提供 页面服务
api/proto/api.proto 代码如下：
syntax = "proto3";import "github.com/micro/go-micro/api/proto/api.proto";service Form {//常规 formrpc Submit(go.api.Request) returns (go.api.Response) {};//multipart formrpc Multipart(go.api.Request) returns (go.api.Response) {};
}bogon:proto zhaozhiliang$ protoc --proto_path=$GOPATH/src:. --micro_out=. --go_out=. api.proto
api/main.go 代码如下：
package mainimport ("bytes""context""fmt"proto "form/api/proto""github.com/micro/go-micro"api "github.com/micro/go-micro/api/proto""log""mime""mime/multipart""strings"
)type Form struct{}func (f *Form) Submit(ctx context.Context, req *api.Request, rsp *api.Response) error {fmt.Println("received Submit Request")rsp.Body = fmt.Sprintf("got your value %+v", req.Post)return nil
}func (f *Form) Multipart(ctx context.Context, req *api.Request, rsp *api.Response) error {fmt.Println("received Multipart Submit Request")ct := strings.Join(req.Header["Content-Type"].Values, ",")mt, p, err := mime.ParseMediaType(ct)if err != nil {return err}if !strings.HasPrefix(mt, "multipart/") {return fmt.Errorf("%v does not contain multipart", mt)}r := multipart.NewReader(bytes.NewReader([]byte(req.Body)), p["boundary"])form, err := r.ReadForm(32 << 20)if err != nil {return err}rsp.Body = fmt.Sprintf("got your values %+v", form)return nil
}func main() {service := micro.NewService(micro.Name("go.micro.api.form"),)service.Init()proto.RegisterFormHandler(service.Server(), new(Form))if err := service.Run(); err != nil {log.Fatal(err)}
}
web/main.go 代码如下：
package mainimport ("fmt""github.com/micro/go-micro/web""log""net/http"
)func index(w http.ResponseWriter, r *http.Request) {log.Println("received a web service!")fmt.Fprint(w, `<html>
<body>
<h1>This is a regular form</h1>
<form action="http://192.168.1.129:8080/form/submit" method="POST">
<input type="text" id="thing" name="thing" />
<button>submit</button>
</form>
<h1>This is a multipart form</h1>
<form action="http://192.168.1.129:8080/form/multipart" method="POST" enctype="multipart/form-data">
<input type="text" id="thing" name="thing" />
<button>submit</button>
</form>
</body>
</html>
`)
}func main() {service := web.NewService(web.Name("go.micro.web.form"),)service.Init()service.HandleFunc("/", index)service.Run()
}
运行：
运行 api 网关 ，handler=api
micro api --handler=api
[root@liang form]# micro api --handler=api
2020-01-10 19:00:09.026984 I | [api] Registering API Request Handler at /
2020-01-10 19:00:09.030256 I | [api] HTTP API Listening on [::]:8080
2020-01-10 19:00:09.030538 I | [api] Transport [http] Listening on [::]:16917
2020-01-10 19:00:09.030740 I | [api] Broker [http] Connected to [::]:33890
2020-01-10 19:00:09.035881 I | [api] Registry [mdns] Registering node: go.micro.api-3123f62e-53d7-4069-ba4d-f1b2c95b8c10[root@liang mnt]# micro list services
go.micro.api
go.micro.http.broker
[root@liang mnt]# 运行 micro web
[root@liang ~]# micro web
2020-01-10 19:02:32.852125 I | [web] HTTP API Listening on [::]:8082
2020-01-10 19:02:32.852256 I | [web] Transport [http] Listening on [::]:2482
2020-01-10 19:02:32.852356 I | [web] Broker [http] Connected to [::]:56416
2020-01-10 19:02:32.852632 I | [web] Registry [mdns] Registering node: go.micro.web-4a62f24f-b081-4dda-a99f-dee47a3e69bd[root@liang mnt]# micro list services
go.micro.api
go.micro.http.broker
go.micro.web
[root@liang mnt]# 运行 api service / api/main.go
[root@liang form]# go run api/main.go
2020-01-10 19:04:53.965230 I | Transport [http] Listening on [::]:13042
2020-01-10 19:04:53.965342 I | Broker [http] Connected to [::]:59072
2020-01-10 19:04:53.966033 I | Registry [mdns] Registering node: go.micro.api.form-43924b09-31ff-487e-a8f3-e052d4ff7734[root@liang mnt]# micro list services
go.micro.api
go.micro.api.form
go.micro.http.broker
go.micro.web
[root@liang mnt]# 运行 web service / web/main.go
[root@liang form]# go run web/main.go
2020-01-10 19:05:53.742502 I | Listening on [::]:55204[root@liang mnt]# micro list services
go.micro.api
go.micro.api.form
go.micro.http.broker
go.micro.web
go.micro.web.form
[root@liang mnt]# 浏览器访问：
http://192.168.1.129:8082/form
架构图：
go.mod 文件如下：
module formgo 1.13require github.com/micro/go-micro v1.18.0 // indirect
