以下對應 example/web 例子：
main.go 代碼如下：
package main
import (
"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)
}
}
運行：
2020-01-09 17:52:58.159564 I | Listening on [::]:54815
訪問： localhost:54815;
--------------------------------------------
以下對應 example/form 例子：
這個例子， 展示了 如何 使用 web services 和 api services 展示 一個 form 表單，並post 提交;
//有接口有頁面，有點像 web 頁面應用 ； //當然 api services 是 很通用的。
目錄結構，如下：
web/main.go 提供 頁面服務
api/proto/api.proto 代碼如下：
syntax = "proto3";
import "github.com/micro/go-micro/api/proto/api.proto";
service Form {
//常規 form
rpc Submit(go.api.Request) returns (go.api.Response) {};
//multipart form
rpc 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 代碼如下：
package main
import (
"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 代碼如下：
package main
import (
"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()
}
運行：
運行 api 網關 ，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]#
運行 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]#
運行 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]#
運行 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]#
瀏覽器訪問：
http://192.168.1.129:8082/form
架構圖：
go.mod 文件如下：
module form
go 1.13
require github.com/micro/go-micro v1.18.0 // indirect
