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problem when trying code from HFSJ

Vierda Mila

Ranch Hand

Posts: 61

posted 8 years ago

Hi all,

I'm just trying code in HFSJ page 346-347 with a little modifications.
my code as per below

Person.java

MyServlet.java

Test.jsp

all above code compiled perfectly but when I run, it throw null pointer exception.
I realized in Person.java, I don't define name variable. Does it the cause of NPE?? but I think it should read the name from MyServlet.java when I call setName method.

What did I miss here? thank you for any reply.

regards,
-Vierda Mila-

SCJP 5

Deepak Bala

Bartender

Posts: 6663

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posted 8 years ago

The code request.getAttribute ("person") must by itself be returning null. If name were null you would see 'Person is: null' when Person is: <%= p.getName() %> is executed.

Do you have a related stack trace ? You are reaching the JSP through the servlet right ?

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Vierda Mila

Ranch Hand

Posts: 61

posted 8 years ago

Hi Deepak,

thanks for your prompt reply and ouch...silly me, yeah I forgot to run the servlet first

will be careful next time

regards,
-Vierda Mila-

SCJP 5

problem when trying code from HFSJ

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