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

11.1 The import Attribute

249

in Table 11.1. All three of these servers also make use of JAR files in the 

lib

subdirectory, and in all three cases you must restart the server whenever you

change files in this directory.

Table 11.1  Class Installation Directories

Automatically  Availab

Location Relative 

Reloaded 

le from 

to Installation 

When Class 

JSP 

Server

Directory

Use

Changes?

Pages?

Tomcat 3.0

webpages/WEB INF/ 

Standard location  No

Yes

classes

for servlet classes

Tomcat 3.0

classes

Alternative loca 

No

Yes

tion for servlet 

classes

JSWDK 

webpages/WEB INF/ 

Standard location  No

Yes

1.0.1

servlets

for servlet classes

JSWDK 

classes

Alternative loca 

No

Yes

1.0.1

tion for servlet 

classes

Java Web 

servlets

Location for fre 

Yes

No

Server 2.0

quently chang 

ing servlet classes

Java Web 

classes

Location for 

No

Yes

Server 2.0

infrequently 

changing servlet 

classes

Example

Listing 11.1 presents a page that uses three classes not in the standard JSP

import list: 

java.util.Date

, 

coreservlets.ServletUtilities

 (see List 

ing 8.3), and 

coreservlets.LongLivedCookie

 (see Listing 8.4). To simplify

references to these classes, the JSP page uses

<%@ page import="java.util.*,coreservlets.*" %>

Figures 11 1 and 11 2 show some typical results. 

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

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