diff --git a/namespace.go b/namespace.go
index 722ec0e8..26371af7 100644
--- a/namespace.go
+++ b/namespace.go
@@ -14,6 +14,8 @@ import (
 
 type namespaceCond func(*beecontext.Context) bool
 
+type innnerNamespace func(*Namespace)
+
 // Namespace is store all the info
 type Namespace struct {
 	prefix   string
@@ -21,12 +23,15 @@ type Namespace struct {
 }
 
 // get new Namespace
-func NewNamespace(prefix string) *Namespace {
-	cr := NewControllerRegistor()
-	return &Namespace{
+func NewNamespace(prefix string, params ...innnerNamespace) *Namespace {
+	ns := &Namespace{
 		prefix:   prefix,
-		handlers: cr,
+		handlers: NewControllerRegistor(),
 	}
+	for _, p := range params {
+		p(ns)
+	}
+	return ns
 }
 
 // set condtion function
@@ -68,14 +73,16 @@ func (n *Namespace) Cond(cond namespaceCond) *Namespace {
 //          ctx.Redirect(302, "/login")
 //        }
 //   })
-func (n *Namespace) Filter(action string, filter FilterFunc) *Namespace {
+func (n *Namespace) Filter(action string, filter ...FilterFunc) *Namespace {
 	var a int
 	if action == "before" {
 		a = BeforeRouter
 	} else if action == "after" {
 		a = FinishRouter
 	}
-	n.handlers.InsertFilter("*", a, filter)
+	for _, f := range filter {
+		n.handlers.InsertFilter("*", a, f)
+	}
 	return n
 }
 
@@ -163,6 +170,13 @@ func (n *Namespace) Handler(rootpath string, h http.Handler) *Namespace {
 	return n
 }
 
+// add include class
+// refer: https://godoc.org/github.com/astaxie/beego#Include
+func (n *Namespace) Include(cList ...ControllerInterface) *Namespace {
+	n.handlers.Include(cList...)
+	return n
+}
+
 // nest Namespace
 // usage:
 //ns := beego.NewNamespace(“/v1”).
@@ -230,3 +244,116 @@ func AddNamespace(nl ...*Namespace) {
 		}
 	}
 }
+
+// Namespace Condition
+func NSCond(cond namespaceCond) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Cond(cond)
+	}
+}
+
+// Namespace BeforeRouter filter
+func NSBefore(filiterList ...FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Filter("before", filiterList...)
+	}
+}
+
+// Namespace FinishRouter filter
+func NSAfter(filiterList ...FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Filter("after", filiterList...)
+	}
+}
+
+// Namespace Include ControllerInterface
+func NSInclude(cList ...ControllerInterface) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Include(cList...)
+	}
+}
+
+// Namespace Router
+func NSRouter(rootpath string, c ControllerInterface, mappingMethods ...string) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Router(rootpath, c, mappingMethods...)
+	}
+}
+
+// Namespace Get
+func NSGet(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Get(rootpath, f)
+	}
+}
+
+// Namespace Post
+func NSPost(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Post(rootpath, f)
+	}
+}
+
+// Namespace Head
+func NSHead(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Head(rootpath, f)
+	}
+}
+
+// Namespace Put
+func NSPut(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Put(rootpath, f)
+	}
+}
+
+// Namespace Delete
+func NSDelete(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Delete(rootpath, f)
+	}
+}
+
+// Namespace Any
+func NSAny(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Any(rootpath, f)
+	}
+}
+
+// Namespace Options
+func NSOptions(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Options(rootpath, f)
+	}
+}
+
+// Namespace Patch
+func NSPatch(rootpath string, f FilterFunc) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.Patch(rootpath, f)
+	}
+}
+
+//Namespace AutoRouter
+func NSAutoRouter(c ControllerInterface) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.AutoRouter(c)
+	}
+}
+
+// Namespace AutoPrefix
+func NSAutoPrefix(prefix string, c ControllerInterface) innnerNamespace {
+	return func(ns *Namespace) {
+		ns.AutoPrefix(prefix, c)
+	}
+}
+
+// Namespace add sub Namespace
+func NSNamespace(prefix string, params ...innnerNamespace) innnerNamespace {
+	return func(ns *Namespace) {
+		n := NewNamespace(prefix, params...)
+		ns.Namespace(n)
+	}
+}
diff --git a/namespace_test.go b/namespace_test.go
index 2d6df77a..9142d62c 100644
--- a/namespace_test.go
+++ b/namespace_test.go
@@ -143,3 +143,21 @@ func TestNamespaceCond(t *testing.T) {
 		t.Errorf("TestNamespaceCond can't run get the result " + strconv.Itoa(w.Code))
 	}
 }
+
+func TestNamespaceInside(t *testing.T) {
+	r, _ := http.NewRequest("GET", "/v3/shop/order/123", nil)
+	w := httptest.NewRecorder()
+	ns := NewNamespace("/v3",
+		NSAutoRouter(&TestController{}),
+		NSNamespace("/shop",
+			NSGet("/order/:id", func(ctx *context.Context) {
+				ctx.Output.Body([]byte(ctx.Input.Param(":id")))
+			}),
+		),
+	)
+	AddNamespace(ns)
+	BeeApp.Handlers.ServeHTTP(w, r)
+	if w.Body.String() != "123" {
+		t.Errorf("TestNamespaceInside can't run, get the response is " + w.Body.String())
+	}
+}
diff --git a/parser.go b/parser.go
index e315f9b4..c381c369 100644
--- a/parser.go
+++ b/parser.go
@@ -6,14 +6,18 @@
 package beego
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"go/ast"
 	"go/parser"
 	"go/token"
+	"io/ioutil"
 	"os"
 	"path"
 	"strings"
+
+	"github.com/astaxie/beego/utils"
 )
 
 var globalRouterTemplate = `package routers
@@ -27,13 +31,22 @@ func init() {
 }
 `
 
-var genInfoList map[string][]ControllerComments
+var (
+	lastupdateFilename string = "lastupdate.tmp"
+	pkgLastupdate      map[string]int64
+	genInfoList        map[string][]ControllerComments
+)
 
 func init() {
+	pkgLastupdate = make(map[string]int64)
 	genInfoList = make(map[string][]ControllerComments)
 }
 
 func parserPkg(pkgRealpath, pkgpath string) error {
+	if !compareFile(pkgRealpath) {
+		Info(pkgRealpath + " don't has updated")
+		return nil
+	}
 	fileSet := token.NewFileSet()
 	astPkgs, err := parser.ParseDir(fileSet, pkgRealpath, func(info os.FileInfo) bool {
 		name := info.Name()
@@ -54,6 +67,7 @@ func parserPkg(pkgRealpath, pkgpath string) error {
 		}
 	}
 	genRouterCode()
+	savetoFile(pkgRealpath)
 	return nil
 }
 
@@ -119,8 +133,14 @@ func genRouterCode() {
 				}
 				params = strings.TrimRight(params, ",") + "}"
 			}
-			globalinfo = globalinfo + fmt.Sprintln(`beego.GlobalControllerRouter["`+k+`"] = append(beego.GlobalControllerRouter["`+k+`"], beego.ControllerComments{"`+
-				strings.TrimSpace(c.Method)+`", "`+c.Router+`", `+allmethod+", "+params+"})")
+			globalinfo = globalinfo + `
+	beego.GlobalControllerRouter["` + k + `"] = append(beego.GlobalControllerRouter["` + k + `"],
+		beego.ControllerComments{
+			"` + strings.TrimSpace(c.Method) + `",
+			"` + c.Router + `",
+			` + allmethod + `,
+			` + params + `})
+`
 		}
 	}
 	if globalinfo != "" {
@@ -132,3 +152,36 @@ func genRouterCode() {
 		f.WriteString(strings.Replace(globalRouterTemplate, "{{.globalinfo}}", globalinfo, -1))
 	}
 }
+
+func compareFile(pkgRealpath string) bool {
+	if utils.FileExists(path.Join(AppPath, lastupdateFilename)) {
+		content, err := ioutil.ReadFile(path.Join(AppPath, lastupdateFilename))
+		if err != nil {
+			return true
+		}
+		json.Unmarshal(content, &pkgLastupdate)
+		ft, err := os.Lstat(pkgRealpath)
+		if err != nil {
+			return true
+		}
+		if v, ok := pkgLastupdate[pkgRealpath]; ok {
+			if ft.ModTime().UnixNano() > v {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+func savetoFile(pkgRealpath string) {
+	ft, err := os.Lstat(pkgRealpath)
+	if err != nil {
+		return
+	}
+	pkgLastupdate[pkgRealpath] = ft.ModTime().UnixNano()
+	d, err := json.Marshal(pkgLastupdate)
+	if err != nil {
+		return
+	}
+	ioutil.WriteFile(path.Join(AppPath, lastupdateFilename), d, os.ModePerm)
+}