Prentice Hall and Sun Microsystems. Personal use only; do not redistribute.

A.17 Using Applets As Servlet Front Ends

547

File Upload Controls

  Usual form:

 (no end tag)

  Attributes: 

NAME

 (required), 

VALUE

 (ignored), 

SIZE

, 

MAXLENGTH

, 

ACCEPT

, 

ONCHANGE

, 

ONSELECT

, 

ONFOCUS

, 

ONBLUR

 (nonstandard)

  Use an 

ENCTYPE

 of 

multipart/form data

 in the 

FORM

 declaration.

Server Side Image Maps

  Usual form:

 (no end tag)

  Attributes: 

NAME

 (required), 

SRC

, 

ALIGN

  You can also provide an 

ISMAP

 attribute to a standard 

IMG

 element that 

is inside an 

Sending Data with GET and Displaying the 

Resultant Page

String someData =

name1 + "=" + URLEncoder.encode(val1) + "&" +

name2 + "=" + URLEncoder.encode(val2) + "&" +

...

nameN + "=" + URLEncoder.encode(valN);

try {

URL programURL = new URL(baseURL + "?" + someData);

getAppletContext().showDocument(programURL);

} catch(MalformedURLException mue) { ... }

Second edition of this book: www.coreservlets.com; Sequel: www.moreservlets.com.

Servlet and JSP training courses by book's author: courses.coreservlets.com.