sjyun · November 30, 2017 14:59
diff --git a/Header b/Header
 package info.thecodinglive.basic;

 import javax.servlet.ServletException;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.Enumeration;

 @WebServlet(urlPatterns = "/header")
 public class HeaderServlet extends HttpServlet{
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setCharacterEncoding("UTF-8");
        resp.setContentType("text/html");
        PrintWriter out = resp.getWriter();
        out.println("<html><head><title>header 예제</title></head><body>");
        out.println("=== header 정보 ===");
        out.println("<br/>");
        Enumeration headerNames = req.getHeaderNames();
        while(headerNames.hasMoreElements()){
            String name = (String)headerNames.nextElement();
            String value = req.getHeader(name);
            out.println(name + " : " + value + "<br>");
        }
        out.println("</body></html>");
    }
 }