public void regist(User user) { string sql = @"insert into users (loginname,psw,active) values('" + user.LoginName + "','" + user.Password + "',0);"; User resultUser = findUser(user.LoginName); string result = resultUser != null ? Grobal.FAILURE : Grobal.SUCCESS; if (Grobal.SUCCESS.Equals(result)) { int count = sqlTool.update(sql); if (count <= 0) { result = Grobal.FAILURE; } } sendResultToclient(user, Grobal.REGIST, result); }