Java Reference
In-Depth Information
<html>
<head><title>GisApplet</title></head>
<body BGCOLOR
#
"#ffffff"">
<APPLET CODE
#
"gis.client.GisApplet.class" CODEBASE
#
"."
WIDTH
#
"700" HEIGHT
#
"600">
<PARAM NAME
#
MAPLIST
VALUE
#
"RomanItaly
|
RomeEurope
|
RomeMediterraneum" >
</APPLET>
</body>
</html>
Figure 15.13
The HTML code that embeds the GIS Applet
// equal to the localhost for test purposes
String HOST
#
"127.0.0.1";
int
PORT
#
2002;
boolean
connected
#
false
;
BufferedReader input
#
null
;
PrintWriter output
#
null
;
CartographicMap mapWindow
#
new
CartographicMap ();
DataWindow dataWindow
#
null
;
public synchronized
void init() {
// loads the list of available maps from the HTML file
ArrayList mapList
#
new
ArrayList();
String mapNameList
#
getParameter("MAPLIST");
if
(mapNameList
##
null
)
return
;
StringTokenizer tokenizer
#
new
StringTokenizer(mapNameList, "
|
");
while
(tokenizer.hasMoreTokens()) {
String mapName
#
tokenizer.nextToken();
mapList.add(mapName);
}
// connect to the remote server
try
{
socket
#
new
Socket(HOST, PORT);
input
#
new
BufferedReader(
new
InputStreamReader(socket.getInputStream()));
output
#
new
PrintWriter(socket.getOutputStream(),
false
);
}
catch
(Exception e) {
e.printStackTrace();
return
;
}
// the list of available cartographic maps is shown in a
// menu of the graphical interface; when an item is
// selected, the following method is executed
