diff --git a/src/service/system/user.lua b/src/service/system/user.lua
index f2361c8..a51267f 100644
--- a/src/service/system/user.lua
+++ b/src/service/system/user.lua
@@ -36,12 +36,16 @@ local function getUuid()
 end
 
 --数据库执行sql语句
-function _M.execSQL(sql)
+local function execSQL(sql)
+    local res = nil
     if sql == '' or sql == nil then
         return 0x000003,res
     end
     --获取数据库连接
     local code,conn = get_con(dbconf.postgres)
+    if code ~= 0 then
+        return 0x000003,res
+    end
     --执行数据库操作
     res = conn:query(sql)
     if not res then
@@ -58,16 +62,20 @@ local function checkJson(jsonData)
     local success, result = pcall(function()
         return cjson.decode(jsonData)
     end)
+    if success == true then
+        return true, result
+    end
     local res = nil
-    return success,res
+    return false,res
 end
 
 --通过查询条件判断数据库中的数据记录
 --根据用户、手机号、邮箱进行验证用户是否存在
 local function checkUserExist(username, phone, email)
     --组装sql语句
-    local where = string.format("where username=\'%s\' or phone=\'%s\' or email=\'%s\'", username, phone, email)
-    local sql = string.format("select count(*) from \"T_Users\" %s", where)
+    local where = string.format("where username='%s' or phone='%s' or email='%s'", username, phone, email)
+    local sql = string.format("select count(*) as count from \"T_Users\" %s", where)
+    print("check sql: "..sql)
     --获取数据库连接
     return execSQL(sql)
 end
@@ -82,7 +90,7 @@ end
 --根据用户id获取用户信息
 function _M.getUser(uuid)
     --组装sql语句
-    local sql = "select * from \"T_Users\" where uuid="..uuid
+    local sql = "select * from \"T_Users\" where uuid='"..uuid.."'"
     return execSQL(sql)
 end
 
@@ -94,30 +102,34 @@ function _M.addUser(jsonData)
         return 0x000001,result
     end
     --解析json中的键和数据值
-    local keys, values
+    local keys = ""
+    local values = ""
     local username, phone, email
     for key, value in pairs(result) do
         keys = keys..key..","
-        values = values..((type(value) == "string") and "\'"..value.."\'" or value)..","
+        values = values..((type(value) == "string") and "'"..value.."'" or value)..","
         if key == "username" then username = value end
         if key == "phone" then phone = value end
         if key == "email" then email = value end
     end
     --校验用户是否存在
     local ok, res = checkUserExist(username, phone, email)
-    if ok == false then
+    if ok ~= 0 then
         return 0x000001,res
     end
-    local count = 0
-    for _k, _v in pairs(res) do
-        count = _v
+    local num = 0
+    for _, row in ipairs(res) do
+        for key, value in pairs(row) do
+            num = value
+        end
     end
-    if count > 0 then
+    print("exec result:", num)
+    if num > 0 then
         return 0x010000,nil
     end
     --自己增加对应的uuid数据值
     local newKeys = keys.."uuid"
-    local newValues = values.."\'"..getUuid().."\'"
+    local newValues = values.."'"..getUuid().."'"
     --组装sql语句
     local sql = string.format("insert into \"T_Users\"(%s)values(%s)", newKeys, newValues)
     return execSQL(sql)
@@ -126,7 +138,7 @@ end
 --增加用户信息到数据表
 function _M.delete_user(uuid)
     --组装sql语句
-    local sql = "delete from \"T_Users\" where uuid="..uuid
+    local sql = "delete from \"T_Users\" where uuid='"..uuid.."'"
     return execSQL(sql)
 end