present perfect - Difference between: "it has rained / been raining for two hours"

​I read that this is the difference between present perfect and present perfect continuous.

A1: It has been raining for two hours [and I don't expect it to stop soon].
A2: It has rained for two hours [and will likely continue to do so in the future].

Source: 'It has rained for two hours.' Is it raining now? or It stoped raining now?

Is it right? I knew it another way.
Could you please tell me what is right?