Head First Servlets and JSP phần 4 ppsx

We donÕt want Terri and DianeÕs answers mixed up...so they each need their own separate session object... This method does mor e than just create a session, but the FIRS T time you inv

We donÕt want Terri and DianeÕs answers mixed up

so they each need their own separate session object.

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do anything else!

(This method does mor e than just create a session, but the FIRS T time you invoke it on the r equest, it will cause a cookie t o be sent with the response Now, ther eÕs still not guarantee the cli ent will ACCEPT the cookie but weÕr e getting ahead

of ourselves.)

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as SENDING a session ID cooki

e

You never actually SEE the session

ID yourself (although you can ask the session to give it to you).

isNew() returns true if the client has not yet resp onded with this session ID.

Here we KNOW weÕre making a new session.

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We add the session ID to the end

of all the URLs in the HTML we send back in the Response.

The session ID comes back as ÒextraÓ info stuck to the end of the Request URL (The semicolon separator is vendor-speciÞ c.)+7735HVSRQVH

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DonÕt do this! ItÕs supposed to be a header!

This is right, but you donÕt do it your self. The result of

URL rewriting (you donÕt do this yourself either).

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YOU

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(He wants to conserve space

on his machine for playing

ÒThe SimsÓ with the ÒHot

DateÓ expansion pack.)

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