How to navigate from a Servlet to a WebDynpro?

Question

Hi together,
I've the following Problem:
On the same EP, there are 2 deployed components:
- a WebDynpro-Application with several Views, each in a separate iView
- a Servlet
Question:
How can i navigate from the Servlet to one special iView or CustomController of the WebDynpro-Application passing a Parameter?
I've tried to navigate using the WDPortalNavigation.navigateAbsolute()-Method, but when I create the Target-Url using the following Code, my Debugger leaves the Code uncontrolled:
deployableObjectPart = WDDeployableObject.getDeployableObjectPart("vendor/App", "webdynproApp",WDDeployableObjectPartType.APPLICATION);
urlToTargetApp =     WDURLGenerator.getApplicationURL(deployableObjectPart);
Some Ideas?
Regard
Thomas

Answer 1

Hi Thomas,
I think you may have to use session concept here.
check with following code
you can use the following code to set value to the parameter.
HttpServletRequest request = ((IWebContextAdapter) WDWebContextAdapter.getWebContextAdapter()).getHttpServletRequest();
HttpSession session = request.getSession(true);
session.putValue("col_id", <value>);
This code below is used to get parameter value.
HttpServletRequest request = ((IWebContextAdapter) WDWebContextAdapter.getWebContextAdapter()).getHttpServletRequest();
HttpSession session = request.getSession(true);
String Col_id =(String)session.getValue("col_id");
Let's say the pcd location of the target page is
pcd://portal_content/com.sap.pct/specialist/com.sap.test.pages/com.sap.test.target_pg
In the event handler for the onAction event of the button
String appParams = "ApplicationParameter=<your parameter name>=" + <put your value here>;
WDPortalNavigation.navigateAbsolute(
"ROLES://portal_content/com.sap.pct/specialist/com.sap.test.pages/com.sap.test.target_pg",
WDPortalNavigationMode.SHOW_INPLACE,
WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS,
appParams,
null,
true,
true);
For more details you check the following URL. it describes on how to navigate from html/servelt to portal iview.
Passing value from page to WD
Reward points if it helps
Regards
Praveen