add package contrib/rpc/grpcx (#2169)

example/registry/file/client/main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/gogf/gf/contrib/registry/file/v2"
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/net/gsvc"
+	"github.com/gogf/gf/v2/os/gctx"
+	"github.com/gogf/gf/v2/os/gfile"
+)
+
+func main() {
+	gsvc.SetRegistry(file.New(gfile.Temp("gsvc")))
+
+	client := g.Client()
+	for i := 0; i < 100; i++ {
+		res, err := client.Get(gctx.New(), `http://hello.svc/`)
+		if err != nil {
+			panic(err)
+		}
+		fmt.Println(res.ReadAllString())
+		res.Close()
+		time.Sleep(time.Second)
+	}
+}