diff --git a/utils/generator/main.go b/utils/generator/main.go
index 55cd63a..164a42c 100644
--- a/utils/generator/main.go
+++ b/utils/generator/main.go
@@ -132,8 +132,6 @@ func loadData(p string) ([]byte, error) {
 	var rdr io.Reader
 	if p == "-" {
 		rdr = os.Stdin
-	} else if p == "+" {
-		return []byte("{}"), nil
 	} else {
 		if f, err := os.Open(p); err == nil {
 			rdr = f
diff --git a/utils/httpcmder/main.go b/utils/httpcmder/main.go
new file mode 100644
index 0000000..1d9ea4b
--- /dev/null
+++ b/utils/httpcmder/main.go
@@ -0,0 +1,109 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+func main() {
+	log.SetOutput(os.Stdout)
+
+	shell := flag.String("s", "", "shell Command or shell file path")
+	port := flag.Int("p", 21017, "port")
+	host := flag.String("host", "0.0.0.0", "Bind TCP Address")
+	flag.Parse()
+
+	if *shell == "" {
+		log.Fatalf("No shell Command specified")
+	}
+	shells := loadData(*shell)
+
+	log.Println("******************************************************************")
+	log.Printf("**  %-60s**", "Exec shell Server")
+	log.Printf("**  Listen on %-50s**", fmt.Sprintf("%s:%d...", *host, *port))
+
+	addr := fmt.Sprintf("%s:%d", *host, *port)
+	if strings.Contains(addr, "0.0.0.0") {
+		addr = strings.Replace(addr, "0.0.0.0", "", 1)
+		*host = strings.Replace(*host, "0.0.0.0", "127.0.0.1", 1)
+	}
+	log.Printf("**  Shell Command: %-44s **", fmt.Sprintf("%q", shells))
+	log.Printf("**  You can use %-48s**", fmt.Sprintf("http://%s:%d exec the shell", *host, *port))
+	log.Println("******************************************************************")
+
+	http.HandleFunc("/", func(res http.ResponseWriter, req *http.Request) {
+		for _, str := range shells {
+			exec_shell(str)
+		}
+		res.Write([]byte("Done!"))
+	})
+
+	if err := http.ListenAndServe(addr, nil); err != nil {
+		log.Fatal("ListenAndServe：", err)
+	}
+}
+
+func exec_shell(s string) {
+	log.Printf("exec shell: %s", s)
+
+	cmd := exec.Command("/bin/bash", "-c", s)
+	var out bytes.Buffer
+
+	cmd.Stdout = &out
+	err := cmd.Run()
+	if err != nil {
+		log.Fatalf("exec shell error: %v", err)
+	}
+	fmt.Printf("%s", out.String())
+}
+
+func loadData(p string) []string {
+	var values []string
+
+	is, path := isPath(p)
+	if is {
+		fi, err := os.Open(path)
+		if err != nil {
+			log.Fatalf("Error: %s\n", err)
+		}
+		defer fi.Close()
+
+		br := bufio.NewReader(fi)
+		for {
+			line, _, err := br.ReadLine()
+			if err != nil || err == io.EOF {
+				break
+			}
+			if strings.TrimSpace(string(line)) == "" {
+				continue
+			}
+			values = append(values, string(line))
+		}
+	} else {
+		values = append(values, p)
+	}
+	return values
+}
+
+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))
+	_, err = os.Stat(absPath)
+	if err == nil {
+		return true, absPath
+	}
+	return false, ""
+}
diff --git a/utils/httpcmder/test.sh b/utils/httpcmder/test.sh
new file mode 100644
index 0000000..22e1273
--- /dev/null
+++ b/utils/httpcmder/test.sh
@@ -0,0 +1,4 @@
+ls
+pwd
+uname
+whoami
diff --git a/utils/jwt/demo.json b/utils/jwt/demo.json
index b42f309..c0d3cc2 100644
--- a/utils/jwt/demo.json
+++ b/utils/jwt/demo.json
@@ -1,3 +1,5 @@
 {
-  "foo": "bar"
+  "foo": "bar",
+  "exp": "2108-02-03",
+  "info": "jjjkk"
 }
\ No newline at end of file