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go version 1.14.3 最终代码地址:github地址 etcd 请先自行安装或者下载win版本的直接可以启动 安装 go get github.com/micro/go-micro/v2 安装工具protobuf相关工具 go get -u github.com/golang/protobuf/protoc-gen-go go-micro 自己的生成工具 go get github.com/micro/protoc-gen-micro/v2
proto文件 syntax = "proto3"; package Users; service UserService { rpc Test(UserRequest) returns (UserResponse) {} } message UserRequest { string id = 1; } message UserResponse { string ret = 2; }
type UserService struct{} func (g *UserService) Test(ctx context.Context, req *Users.UserRequest, rsp *Users.UserResponse) error { rsp.Ret="users" return nil }
生成 protoc --proto_path=src/protos --micro_out=src/Users --go_out=src/Users Users.proto 运行 service := micro.NewService( micro.Name("UserService"), ) service.Init() Users.RegisterUserServiceHandler(service.Server(), new(UserService)) if err := service.Run(); err != nil { fmt.Println(err) }
package main import ( "context" "github.com/micro/go-micro/v2" "jtthink/src/Users" "log" ) type UserService struct{} func (g *UserService) Test(ctx context.Context, req *Users.UserRequest, rsp *Users.UserResponse) error { rsp.Ret="users" return nil } func NewUserService() *UserService { return &UserService{} } func main() { service:=micro.NewService( micro.Name("UserService")) service.Init() err:=Users.RegisterUserServiceHandler(service.Server(),NewUserService()) if err!=nil{ log.Fatal(err) } if err = service.Run(); err != nil { log.Println(err) } }
syntax = "proto3"; package Users; service UserService { rpc Test(UserRequest) returns (UserResponse) {} } message UserRequest { string id = 1; } message UserResponse { string ret = 2; }
module jtthink go 1.14 require ( github.com/golang/protobuf v1.3.5 github.com/micro/go-micro/v2 v2.4.0 github.com/micro/protoc-gen-micro/v2 v2.0.0 // indirect )
go run src/cmd/server.go 2,使用etcd注册服务、web管理界面、api网关
安装Micro工具 go get github.com/micro/micro/v2 serc/cmd/server.go package main import ( "context" "github.com/micro/go-micro/v2" "jtthink/src/Users" "log" ) type UserService struct{} func (g *UserService) Test(ctx context.Context, req *Users.UserRequest, rsp *Users.UserResponse) error { rsp.Ret="users"+req.Id return nil } func NewUserService() *UserService { return &UserService{} } func main() { //api.jtthink.com --- prefix service:=micro.NewService( micro.Name("api.jtthink.com.user")) service.Init() err:=Users.RegisterUserServiceHandler(service.Server(),NewUserService()) if err!=nil{ log.Fatal(err) } if err = service.Run(); err != nil { log.Println(err) } } package main import ( "context" "github.com/micro/go-micro/v2" "jtthink/src/Users" "log" ) type UserService struct{} func (g *UserService) Test(ctx context.Context, req *Users.UserRequest, rsp *Users.UserResponse) error { rsp.Ret="users"+req.Id return nil } func NewUserService() *UserService { return &UserService{} } func main() { //api.jtthink.com --- prefix service:=micro.NewService( micro.Name("api.jtthink.com.user")) service.Init() err:=Users.RegisterUserServiceHandler(service.Server(),NewUserService()) if err!=nil{ log.Fatal(err) } if err = service.Run(); err != nil { log.Println(err) } } 生成文件: protoc --proto_path=src/protos --micro_out=src/Users --go_out=src/Users Users.proto
启动我们的服务 set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 go run src/cmd/server.go
web管理界面 set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 micro web 默认是 localhost:8082 就可以看到我们的服务 启动网关 set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=127.0.0.1:2379 set MICRO_CLIENT=grpc set MICRO_SERVER=grpc set MICRO_API_NAMESPACE=api.jtthink.com micro api
请求: POST http://localhost:8080/user/userService/test
3,快速创建第二个服务:课程服务
syntax = "proto3"; package Course; service CourseService { rpc ListForTop(ListRequest) returns (ListResponse) {} } message CourseModel{ int32 course_id=1; string course_name=2; } message ListRequest { int32 size = 1; } message ListResponse { repeated CourseModel result = 1; } package main import ( "github.com/micro/go-micro/v2" "jtthink/src/Course" "log" ) func main() { service:=micro.NewService( micro.Name("api.jtthink.com.course")) service.Init() err:=Course.RegisterCourseServiceHandler(service.Server(),Course.NewCourseServiceImpl()) if err!=nil{ log.Fatal(err) } if err = service.Run(); err != nil { log.Println(err) } } package Course import "context" func NewCourseModel(id int32,name string) *CourseModel { return &CourseModel{CourseId:id,CourseName:name} } type CourseServiceImpl struct{} func(this *CourseServiceImpl) ListForTop(ctx context.Context, req *ListRequest, rsp *ListResponse) error{ ret:=make([]*CourseModel,0) ret=append(ret,NewCourseModel(101,"java课程"),NewCourseModel(102,"PHP课程")) rsp.Result=ret return nil } func NewCourseServiceImpl() *CourseServiceImpl { return &CourseServiceImpl{} }
生成文件: protoc --proto_path=src/protos --micro_out=src/Users --go_out=src/Users Users.proto
protoc --proto_path=src/protos --micro_out=src/Course --go_out=src/Course Course.proto
启动服务 课程服务: set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 go run src/cmd/course_server.go --server_address :9091
用户服务 set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 go run src/cmd/user_server.go --server_address :9090
web管理界面 set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 micro web
启动micro网关 set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 set MICRO_API_NAMESPACE=api.jtthink.com set MICRO_CLIENT=grpc set MICRO_SERVER=grpc micro api --handler=rpc
如果不出问题:
通过网关访问课程服务
通过网关访问用户服务
使用micro管理工具: micro get service api.jtthink.com.course
micro get service api.jtthink.com.course service api.jtthink.com.course version latest ID Address Metadata api.jtthink.com.course-9da60d36-d727-4891-b88f-74cecf90b80d 192.168.1.101:9091 transport=grpc,broker=http,protocol=grpc,registry=etcd,server=grpc Endpoint: CourseService.ListForTop Request: { message_state MessageState { no_unkeyed_literals NoUnkeyedLiterals do_not_compare DoNotCompare do_not_copy DoNotCopy message_info MessageInfo } int32 int32 unknown_fields []uint8 size int32 } Response: { message_state MessageState { no_unkeyed_literals NoUnkeyedLiterals do_not_compare DoNotCompare do_not_copy DoNotCopy message_info MessageInfo } int32 int32 unknown_fields []uint8 result []CourseModel }
micro call api.jtthink.com.course CourseService.ListForTop "{\"size\":10}" $ micro call api.jtthink.com.course CourseService.ListForTop "{\"size\":10}" { "result": [ { "course_id": 101, "course_name": "java课程" }, { "course_id": 102, "course_name": "PHP课程" } ] } 4,创建”单纯”的http api、调用grpc服务package main import ( "context" "github.com/micro/go-micro/v2/client/grpc" "github.com/micro/go-micro/v2/web" "jtthink/src/Course" "log" "net/http" ) func main() { service:=web.NewService( web.Name("api.jtthink.com.http.course")) c:=grpc.NewClient() service.HandleFunc("/test", func(writer http.ResponseWriter, request *http.Request) { c:=Course.NewCourseService("api.jtthink.com.course",c) course_rsp,_:=c.ListForTop(context.Background(),&Course.ListRequest{Size:10}) log.Println(course_rsp.Result) writer.Write([]byte("http api test")) }) service.Init() if err:= service.Run(); err != nil { log.Println(err) } }
启动http服务 set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 go run src/cmd/course_http_server.go --server_address :9000
5,go-micro快速集成gin开发http apipackage main import ( "context" "github.com/gin-gonic/gin" "github.com/micro/go-micro/v2/client/grpc" "github.com/micro/go-micro/v2/web" "jtthink/src/Course" "log" ) func main() { c:=grpc.NewClient() r:=gin.New() r.Handle("GET","/test", func(ctx *gin.Context) { c:=Course.NewCourseService("api.jtthink.com.course",c) course_rsp,_:=c.ListForTop(context.Background(),&Course.ListRequest{Size:10}) ctx.JSON(200,gin.H{"Result":course_rsp.Result}) }) service:=web.NewService( web.Name("api.jtthink.com.http.course"), web.Handler(r), ) service.Init() if err:= service.Run(); err != nil { log.Println(err) } }
运行: set MICRO_REGISTRY=etcd set MICRO_REGISTRY_ADDRESS=localhost:2379 go run src/cmd/course_http_server.go --server_address :9000
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