Method for transmitting request message and apparatus

A method for generating a correspondence between information about a controller and a driver adaptation plug-in group, the method comprising:

• obtaining, by a group manager, information about a controller;
• determining, by the group manager, from multiple driver adaptation plug-ins, at least one driver adaptation plug-in corresponding to the controller, wherein the controller is connected to the at least one driver adaptation plug-in;
• and
• generating, by the group manager, a data structure indicating a correspondence between the information about the controller and a driver adaptation plug-in group, wherein the driver adaptation plug-in group comprises the at least one driver adaptation plug-in.

A dispatcher, comprising:

• a memory for storing executable program code;
• a communications interface;
• and
• at least one processor connected to the memory and the communications interface, wherein the executable program code, when executed by the at least one processor, causes the dispatcher to:
• receive a service request message,
• obtain information about a first controller from the service request message,
• determine a first driver adaptation plug-in group from a data structure indicating a correspondence between information about multiple controllers and a driver adaptation plug-in group, based on the information about the first controller, the first driver adaptation plug-in group having at least one driver adaptation plug-in connected to the first controller, and
• determine, from the at least one driver adaptation plug-in connected to the first controller, at least one to-be-selected driver adaptation plug-in having a running status indicated as normal;
• and
• send the service request message to the first controller by using one of the at least one to-be-selected driver adaptation plug-in.