使用angularjs中的ng-class评估多个变量(Evaluating multiple variables with ng-class in angularjs)

 此错误实质上意味着无法将IP解析为主机名。 
 
 这里可能会发生一些事情： 
 
 
 
 外部IP在内部不起作用，在这种情况下，您应该修改连接字符串，以便在必要时使用内部主机名和端口（它应该在GoDaddy中的某个位置可用）。 
 
 
 您的IP和/或端口错误。 检查您的连接设置。 
 
 
 您使用的连接字符串格式错误。 仔细检查提供者的格式。 我见过MySQL的连接字符串，其中端口是一个单独的参数，如下所示： 
 
 
 连接字符串 ： Server=myServerAddress;Port=1234;Database=myDataBase;Uid=myUsername;Pwd=myPassword; 

This error essentially means the IP cannot be resolved to a host name.
 
A few things that might be going on here:
 
 
 
The external IP does not work internally in which case, you should modify your connection string so that it uses the internal host name and port if necessary (it should be available somewhere in GoDaddy).
 
 
You have the wrong IP and/or port. Check your connection settings.
 
 
You are using the wrong format for your connection string. Double check the format against the provider. I have seen connection strings for MySQL where the port is a separate argument, like this:
 
 
Connection String: Server=myServerAddress;Port=1234;Database=myDataBase;Uid=myUsername;Pwd=myPassword;