Ajax responsetext returns the entire webpage

In JSP, Ajax is used to obtain information from the background. The returned result responsetext is not a string, but the entire webpage, And the webpage content does not know where it comes from. The use of the company's framework is too complicated to be pursued.

Solution:

In the action in the return process, change Return Mapping. findforward (forward_success) to return NULL to get the string, not the entire webpage.

Unknown reason, the company framework did not give the source code... From the experiment. A waste of time.