fix:#2002 definition service lowercase generation cannot be exported (#2003)

* fix:#2002

* fix:lint

cmd/kratos/go.mod

@@ -8,4 +8,5 @@ require (
 	github.com/fatih/color v1.13.0
 	github.com/spf13/cobra v1.3.0
 	golang.org/x/mod v0.5.0
+	golang.org/x/text v0.3.7
 )

cmd/kratos/internal/proto/server/server.go

@@ -7,10 +7,15 @@ import (
 	"path"
 	"strings"
 
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
+
 	"github.com/emicklei/proto"
 	"github.com/spf13/cobra"
 )
 
+var caser = cases.Title(language.English)
+
 // CmdServer the service command.
 var CmdServer = &cobra.Command{
 	Use:   "server",
@@ -60,7 +65,7 @@ func run(cmd *cobra.Command, args []string) {
 				r, ok := e.(*proto.RPC)
 				if ok {
 					cs.Methods = append(cs.Methods, &Method{
-						Service: s.Name, Name: r.Name, Request: r.RequestType,
+						Service: s.Name, Name: caser.String(r.Name), Request: r.RequestType,
 						Reply: r.ReturnsType, Type: getMethodType(r.StreamsRequest, r.StreamsReturns),
 					})
 				}