Redirecting user default landing page in liferay

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Define "Default Landing Page" in Control Panel ---> Portal setting 

 and put below logic in your class

 String defaultPagePath = PrefsPropsUtil.getString(themeDisplay.getCompanyId(), 
PropsKeys.DEFAULT_LANDING_PAGE_PATH);

 response.sendRedirect(defaultPagePath);

 The above redirtects to the page where you have defined the value in the portal setting.

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