Passing HashMap object from one jsp to another

[pratapsiva sivakumar]

Sir,
I have created a HashMap object in one jsp page.i want to pass the HashMap Object to another jsp page.How to do it with an example please?

[Balu Sadhasivam]

Pratap,

If both jsp belong to same request , use JSTL <c:set> to set in "request scope" and forward to the other jsp. If its part of next request , then store it in "session scope".

[samuel soundra rajan]

if you want that hashtable to multible pages, then add it to session object

session.setAttribute("hashSesObject",hashTableObj);

second page you can get the object by using.

HashTable hashTableObj = (HashTable)session.getAttribute("hashSesObject")

[Sean Clark]

Hey,

you can use the <c:set> tag to set it in session scope as well.
Try to avoid using java scriptlets as shown above inside your JSPs as it can make them quite unreadable.

Sean

[Ketan Parikh]

I think from above posts you must have got your answer.

I want to include one more thing which may be helpful to you. If you are not updating your hashMap on different jsps, it is good idea to set read only hashMap in Session Or Request Object.

Collections.unmodifiableMap(map)