diff --git a/src/main/java/io/linfeng/common/utils/Constant.java b/src/main/java/io/linfeng/common/utils/Constant.java
index 57257f2..4cf9ab7 100644
--- a/src/main/java/io/linfeng/common/utils/Constant.java
+++ b/src/main/java/io/linfeng/common/utils/Constant.java
@@ -39,6 +39,12 @@ public class Constant {
     public static final String ORDER_DESC_READCOUNT = "read_count desc";
 
 
+    /**
+     *  终端
+     */
+    public static final String H5 = "H5";
+    public static final String WXAPP = "WXAPP";
+    
 
     /**
      * 用户是否禁用
diff --git a/src/main/java/io/linfeng/modules/admin/service/impl/AppUserServiceImpl.java b/src/main/java/io/linfeng/modules/admin/service/impl/AppUserServiceImpl.java
index 2741147..89ceebe 100644
--- a/src/main/java/io/linfeng/modules/admin/service/impl/AppUserServiceImpl.java
+++ b/src/main/java/io/linfeng/modules/admin/service/impl/AppUserServiceImpl.java
@@ -173,7 +173,7 @@ public class AppUserServiceImpl extends ServiceImpl<AppUserDao, AppUserEntity> i
             appUser.setMobile(form.getMobile());
             appUser.setGender(0);
             appUser.setAvatar(Constant.DEAULT_HEAD);
-            appUser.setUsername(generateRandomName("H5"));
+            appUser.setUsername(generateRandomName(Constant.H5));
             appUser.setCreateTime(DateUtil.nowDateTime());
             appUser.setUpdateTime(DateUtil.nowDateTime());
             List<String> list = new ArrayList<>();
@@ -336,7 +336,7 @@ public class AppUserServiceImpl extends ServiceImpl<AppUserDao, AppUserEntity> i
             AppUserEntity appUser = new AppUserEntity();
             appUser.setGender(0);
             appUser.setAvatar(Constant.DEAULT_HEAD);
-            appUser.setUsername(generateRandomName("WX"));
+            appUser.setUsername(generateRandomName(Constant.WXAPP));
             appUser.setCreateTime(DateUtil.nowDateTime());
             appUser.setUpdateTime(DateUtil.nowDateTime());
             appUser.setOpenid(openId);
@@ -420,11 +420,17 @@ public class AppUserServiceImpl extends ServiceImpl<AppUserDao, AppUserEntity> i
         return (String) json.get("openid");
     }
 
+
+    /**
+     * 生成随机用户名
+     * @param type 终端类型
+     * @return 随机用户名
+     */
     private String generateRandomName(String type){
         String name = "";
-        if(type.equals("H5")){
+        if(type.equals(Constant.H5)){
             name = "LF_" + RandomUtil.randomNumbers(8);
-        }else if(type.equals("WX")){
+        }else if(type.equals(Constant.WXAPP)){
             name = "LF_wx" + RandomUtil.randomNumbers(8);
         }
         return name;