diff --git a/Makefile b/Makefile
index 47f4396..b5952c8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,5 @@
+.PHONY: default init build install release dep get_deps clean build_amd64 build_386 upx
+
 # https://golang.org/doc/install/source#environment
 GOOS := $(shell go env | awk -F= '$$1=="GOOS" {print $$2}' | awk -F '"' '{print $$2}') # 此处 awk 需使用两个 $
 GOARCH := $(shell go env | awk -F= '$$1=="GOARCH" {print $$2}' | awk -F '"' '{print $$2}')
@@ -7,7 +9,13 @@ PKG =
 # 	GOARCH := $(strip $(GOARCH)).exe
 # endif
 
-.PHONY: build
+default:
+	@echo "JWT info: please choose a target for 'make'"
+	@echo "available target: init build install release dep get_deps clean build_amd64 build_386 upx"
+
+init: get-deps dep clean
+	go install -ldflags "-s -w"
+
 build:
 	@ go build -ldflags "-s -w" -o dist/jwt_$(strip $(GOOS))_$(strip $(if \
     $(findstring windows,$(GOOS)),\
@@ -15,25 +23,33 @@ build:
     $(strip $(GOARCH))\
 	))
 
-.PHONY: amd64
-amd64:
+install:
+	go install -ldflags "-s -w"
+
+release: amd64 386
+
+dep:
+	dep ensure
+
+get_deps:
+	go get -u github.com/golang/dep/cmd/dep
+
+clean:
+	go clean -i
+	rm -rf dist/jwt* jbls
+
+build_amd64:
 	@ $(foreach OS,\
 	$(OSS),\
 	$(shell CGO_ENABLED=0 GOOS=$(OS) GOARCH=amd64 go build -ldflags "-s -w" -o dist/jwt_$(OS)_amd64$(if $(findstring windows,$(OS)),.exe)))
 	@ echo done
 
-.PHONY: 386
-386:
+build_386:
 	@ $(foreach OS,\
 	$(OSS),\
 	$(shell CGO_ENABLED=0 GOOS=$(OS) GOARCH=386 go build -ldflags "-s -w" -o dist/jwt_$(OS)_386$(if $(findstring windows,$(OS)),.exe)))
 	@ echo done
 
-.PHONY: clean
-clean:
-	@ rm -rf dist/jwt* jbls
-
 # 压缩。需要安装 https://github.com/upx/upx
-.PHONY: upx
 upx:
-	@ upx $(if $(PKG),$(PKG),dist/jwt*)
\ No newline at end of file
+	upx $(if $(PKG),$(PKG),dist/jwt*)
\ No newline at end of file
diff --git a/test/demo.json b/test/demo.json
index da3d236..853c5cb 100644
--- a/test/demo.json
+++ b/test/demo.json
@@ -1,6 +1,5 @@
 {
-  "foo": "bar",
-  "exp": "2108-02-03",
-  "info": "jjjkk",
-  "other": "靠捡垃圾困了就睡打发士大夫斯柯达房间爱劳动法"
+  "ceres.enncloud.cn/app.id": "SunAR6mmR",
+  "ceres.enncloud.cn/namespace": "g-ceres",
+  "sub": "ceres.enncloud.cn:app:SunAR6mmR"
 }
\ No newline at end of file
diff --git a/token/token.go b/token/token.go
index 2aab6a6..b41a3b6 100644
--- a/token/token.go
+++ b/token/token.go
@@ -25,7 +25,6 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
-	"log"
 	"os"
 	"path/filepath"
 	"strings"
@@ -65,12 +64,7 @@ func loadData(p string) ([]byte, error) {
 }
 
 func isPath(path string) (bool, string) {
-	p, err := filepath.Abs("")
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	absPath := filepath.Join(p, strings.Replace(path, p, "", 1))
+	absPath, err := filepath.Abs(path)
 	_, err = os.Stat(absPath)
 	if err == nil {
 		return true, absPath