Hello i need add native css and js script into vaadin application:
i wondering something like that:
@SuppressWarnings("serial")
@WebServlet(name = "Sample Application",
initParams = {
@WebInitParam(name = "application",
value = "com.example.noxml.EntryPoint")
},
urlPatterns = {"/*"})
public class EE6ApplicationServlet extends ApplicationServlet {
@Override
protected void writeAjaxPageHtmlHeader(BufferedWriter page, String title, String themeUri) throws IOException {
super.writeAjaxPageHtmlHeader(page, title, themeUri);
page.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"[b]
[color=#e83535]
/css
[/color]
[/b]\" />");//add link into header
}
}
So my example Css-style page :
<%@ page language="java" contentType="text/css; charset=UTF-8" pageEncoding="UTF-8" %>
.MainColumn
{
width: ${width}
font-size: ${fontsize}
}
and my controller who send file when url = /css
@WebServlet(name = "Sample",
urlPatterns = {"/css"})
public class ShopCssServlet extends ApplicationServlet
{
private static final long serialVersionUID = 1L;
private static final String CSS_PAGE = "/WEB-INF/mystyle.jsp";
public String width ;
public String fontsize;
@Override
public void init() throws ServletException
{
super.init();
fontsize = 12+""; // get value from database but for example initialize default value
width = 34 + "";
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
super.doGet(req, resp);
req.setAttribute("fontsize", fontsize);
req.setAttribute("width", width);
getServletContext().getRequestDispatcher(CSS_PAGE).forward(req, resp);
}
}
But its not working i need tool that i can set css styles using databases values … so its complicated . I use this trick before when i write in jsp … and its working very well but in vaadin i cant configure it …
i thing its not working because when i click in firefox ‘view page source’ i havent got this link in head ?? so how can i add info in header using vaadin ??