Java Servlet-打印到Eclipse控制台

Question

I'd like to test my servlet by printing the results to the console. System.out.println does not seen to work for a servlet. Does anyone know how I can achieve this? Main purpose is for debugging at a later stage.

public class GetAllStaff extends HttpServlet {

private static final long serialVersionUID = 1L;

static StaffDAO dao = new StaffDAO();
static ArrayList<Staff> sList = null;

public void doGet(HttpServletRequest request,
        HttpServletResponse response)
                throws ServletException, IOException {

    sList = dao.getAllStaff();

    for (int i = 0; i < sList.size(); i++)
    {

    }
  }

Answer 1

You could use

ServletContext context = getServletContext( );
context.log("This is a log item");

The logs are not printed in Eclipse console but can be found at logs folder of servlet container (say Apache Tomcat)

Reference: http://www.tutorialspoint.com/servlets/servlets-debugging.htm

Answer 2

You may want to print everything on a browser with the following code?

PrintWriter out = res.getWriter();
out.println("Some information on the browser...");

PS I tried System.out.println("something"); in my IDE (Intellij), the result showed up in the console.