优化服务退出流程，增加中间件文档

server/utility/simple/simple.go

@@ -18,20 +18,30 @@ import (
 	"hotgo/utility/encrypt"
 )
 
+// DecryptText 解密文本
+func DecryptText(text string) (string, error) {
+	str, err := gbase64.Decode([]byte(text))
+	if err != nil {
+		return "", err
+	}
+
+	str, err = encrypt.AesECBDecrypt(str, consts.RequestEncryptKey)
+	if err != nil {
+		return "", err
+	}
+
+	return string(str), nil
+}
+
 // CheckPassword 检查密码
 func CheckPassword(input, salt, hash string) (err error) {
 	// 解密密码
-	password, err := gbase64.Decode([]byte(input))
+	password, err := DecryptText(input)
 	if err != nil {
 		return err
 	}
 
-	password, err = encrypt.AesECBDecrypt(password, consts.RequestEncryptKey)
-	if err != nil {
-		return err
-	}
-
-	if hash != gmd5.MustEncryptString(string(password)+salt) {
+	if hash != gmd5.MustEncryptString(password+salt) {
 		err = gerror.New("用户密码不正确")
 		return
 	}