FileDocCategorySizeDatePackage
HelloMIME.javaAPI DocExample1819Tue Jun 08 11:26:42 BST 2004None

HelloMIME

public class HelloMIME extends HttpServlet

Fields Summary
private static final int
TEXT_TYPE
private static final int
IMAGE_TYPE
Constructors Summary
Methods Summary
private voidcopyStream(java.io.InputStream in, java.io.OutputStream out)

        int bytes;
        byte[] b = new byte[4096];
        
        while ((bytes = in.read(b, 0, b.length)) != -1) {
            out.write(b, 0, bytes);
            out.flush();
        }
public voiddoGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)


        
		        
           

        String greeting = "Hello World!";
        int majorType = TEXT_TYPE;
        String type = request.getParameter("type");
        if ("plain".equals(type)) {
            response.setContentType("text/plain");
        }
        else if ("html".equals(type)) {
            response.setContentType("text/html");
            greeting = "<html><body><h1>" + greeting +
                "</h1></body></html>";
        }
        else if ("image".equals(type)) {
            response.setContentType("image/gif");
            majorType = IMAGE_TYPE;
        }
        else {
            response.sendError(HttpServletResponse.SC_BAD_REQUEST, 
			       "Please specify a valid response type");
            return;
        }

        if (majorType == TEXT_TYPE) {
            PrintWriter out = response.getWriter();
            out.println(greeting);
        }
        else {
            OutputStream os = response.getOutputStream();
            ServletContext application = getServletContext();
            InputStream is = 
                application.getResourceAsStream("/ora.gif");
            copyStream(is, os);
        }