google app engine - How to cause a "back button' from a java servlet? -


i have form on page a. submits data java servlet on servlet b. servlet b error checking. if checking shows errors i'd send user page via button type action (which keeps data in form). there way in java servlet response? in case matters, in google appengine's java platform.

no, can't that. can though, send html markup of page containing form, , prepopulate form values submitted user:

<input type="text" value="hello" />

displays text field populated hello.

basically mvc frameworks allow doing quite easily.


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