Liferay 6.1 provides Custom Fileds for Pages , set viewCount as a Custom Field and update it using a servicePreAction Hook.

public class CustomServicePreAction extends Action {

    /**
     * This Method is used for Creating the Map Variable of the Pages
     *
     * @param HttpServletRequest
     * @param HttpServletResponse
     */
    @Override
    public void run(HttpServletRequest req, HttpServletResponse res)
            throws ActionException {
              ThemeDisplay themeDisplay = (ThemeDisplay) req
                .getAttribute(WebKeys.THEME_DISPLAY);
        if (!themeDisplay.getURLCurrent().contains("control_panel")) {
            Layout layout = themeDisplay.getLayout();
            try {
                    setupExpandos(layout);
                } catch (Exception e) {
                  
                }
            }
    
    }

    protected void setupExpandos(Layout layout) throws Exception {
        
        
        ExpandoTable table = null;
        try {
            table = ExpandoTableLocalServiceUtil.addTable(layout.getCompanyId(), Layout.class.getName(),ExpandoTableConstants.DEFAULT_TABLE_NAME);
        } catch (DuplicateTableNameException dtne) {
            table = ExpandoTableLocalServiceUtil.getTable(layout.getCompanyId(), Layout.class.getName(),ExpandoTableConstants.DEFAULT_TABLE_NAME);
        }
         String column = "viewCount";
         ExpandoColumn expcolumn = null;
         try {
              expcolumn = ExpandoColumnLocalServiceUtil.addColumn(table.getTableId(), column,ExpandoColumnConstants.LONG,0L);
         }
         catch (DuplicateColumnNameException dcne)
         {
               expcolumn =        ExpandoColumnLocalServiceUtil.getColumn(layout.getCompanyId(),PortalUtil.getClassNameId(Layout.class.getName()), table.getName(), column);
         }
        long count = Long.valueOf(ExpandoValueLocalServiceUtil.getData(layout.getCompanyId(),Layout.class.getName(),      table.getName(), expcolumn.getName() , layout.getPrimaryKey(),0L));
        ExpandoValueLocalServiceUtil.addValue(layout.getCompanyId(),Layout.class.getName(), table.getName(), expcolumn.getName() , layout.getPrimaryKey(),count+1L);

    }

  
}