如何使用 java servlet 为现有网页提供服务

Question

I've been through a few tutorials for java servlets and they all show how to display a web page generating in the java code using a servlet. How can I display an existing html page using a servlet?

I figure I need to do something with HttpServletRequest.getRequestDispatcher but not sure exactly what?

Answer 1

you can do this in two ways:

1. Request dispatcher

   ServletContext context= getServletContext(); RequestDispatcher rd= context.getRequestDispatcher("/somePage.html"); rd.forward(request, response);

2. Response sendRedirect()

   response.sendRedirect("/someUrl.html");

See the difference between the two methods here: RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()