The JSP code

The ID of the data type is a string type
The Servlet code

After the operation interface is as follows, there is no error, do not know why display is blank???????


Great god solve!!!!!!!!!!!!!! Quite disturbed, mulling over 3 days

CodePudding user response:

Request to use the setAttribute, that you'll have to use the getAttribute JSP there to undertake this list information.

CodePudding user response:

The Servlet code breaking point look into the background
If really anxious, might as well put/list. Get the attribute set value of the code from the JSP paste, browser f12 switch to the console output also posted,