Initiate STD ESS for a specified PERNR

Question

We have a requirement to call standard ESS address maintenance java webdynpro application in our custom abap webdynpro application for a PERNR which is different than the login user.
We are able to launch this application using following code.
Navigate to portal link with parameters
    CALL METHOD lo_portal_manager->navigate_absolute
      EXPORTING
         navigation_target   = <standard java application pcd link in portal>
         navigation_mode     = if_wd_portal_integration=>co_show_inplace
         post_parameters     = abap_true
         business_parameters = lt_portal_parameters
         launcher_parameters = lt_portal_parameters.
But I am not able to find the parameter name through which we can pass the PERNR number to launch for particular employee(other than login employee).
Has anyone used or worked on the similar application? Can you share the parameter name used to pass the PERNR.
When we call any java webdynpro application through portal the first method it will execute will be windowsu2019 default () method. Can anybody give me list of all parameters that are used in this method also helpful to solve my problem?
Our requirement is to have WD Abap page through which HR administrator can initiate standard services for employees under his/her control. He/She will specify the PERNR and try to invoke the Std ESS Application. We are able to launch the page for self but we want to launch it for a different employee by passing a PERNR

Answer 1

hi ,
1 create a input field , bind it to a context attribute
2 using code wizard (control +f7) , read the context attribute value by using get_attribute method
choose the radio button read context node/attribute
DATA lo_nd_cn_node TYPE REF TO if_wd_context_node.
    DATA lo_el_cn_node TYPE REF TO if_wd_context_element.
    DATA ls_cn_node TYPE wd_this->element_cn_node .
    DATA lv_attr  LIKE ls_city-ca_attr.
*   navigate from <CONTEXT> to <CN_NODE> via lead selection
    lo_nd_node = wd_context->get_child_node( name = wd_this->wdctx_ca_attr).
*   get element via lead selection
    lo_el_cn_node = lo_nd_cn_node->get_element(  ).
*   get single attribute
    lo_el_cn_node->get_attribute(
      EXPORTING
        name =  `CA_ATTR`
      IMPORTING
        value = lv_attr ).
3 now u have got the value which user has entered in lv_attr
4 Put if condition
DATA : lv_username type string .
lv_username = SY-UNAME.
IF lv_attr NE lv_username.
//ur logic to call standard ESS address maintenance java webdynpro application
ENDIF.
regards,
amit