How to send Variable from a web dynpro abap application to anthor

HI all:
    I have two web dynpro abap applications .
    I want to send a Variable from a web dynpro abap application to another web dynpro abap application using post method.
    Because, now I have used append_field_url to send Variable,but this method will display the Variable in the URL.
    I do not need this result.
    I need the Variable from a web dynpro abap application to another web dynpro abap application and the Variable will not display in the URL.
    Can you give me an example?
    Thanks.

HI Nawal Kishor Mittal :
I have tried your method,but I can not get the value of variable.
My code is as follows:
The first web dynpro abap application:
DATA:BEGIN OF l_send,
     l_value TYPE string,
     END OF l_send.
l_send-l_value = '400001'.
EXPORT l_send-l_value FROM l_send TO SHARED MEMORY indx(aa) ID 'YTEST_MATNR'.
The second web dynpro abap application:
DATA:BEGIN OF m_send,
     s_value TYPE string,
     END OF m_send.
IMPORT m_send-s_value TO m_send FROM SHARED BUFFER indx(aa) ID 'YTEST_MATNR'.
DELETE FROM MEMORY ID 'YTEST_MATNR'.
Thanks.

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