HTML and CSS Reference
In-Depth Information
@FormParam
(
"email"
)
String
email
,
@FormParam
(
"phoneNumber"
)
String
phone
)
{
...
//Create a new member class from fields
Member
member
=
new
Member
();
member
.
setName
(
name
);
member
.
setEmail
(
email
);
member
.
setPhoneNumber
(
phone
);
try
{
//Fire the CDI event
memberEventSrc
.
fire
(
member
);
Finally, we set up the WebSocket JavaScript client and safely avoid using the
eval()
method to execute the received JavaScript.
...
var
location
=
"ws://192.168.1.101:8081/"
this
.
_ws
=
new
WebSocket
(
location
);
....
_onmessage
:
function
(
m
)
{
if
(
m
.
data
)
{
//check to see if this message is a CDI event
if
(
m
.
data
.
indexOf
(
'cdievent'
)
>
0
){
try
{
//$('log').innerHTML = m.data;
//avoid use of eval...
var
event
=
(
m
.
data
);
event
=
(
new
Function
(
"return "
+
event
))();
event
.
cdievent
.
fire
();
}
catch
(
e
){
alert
(
e
);
}
}
else
{
//... append data in the DOM
}
}
},
Here is the JavaScript code that listens for the CDI event and executes the necessary
client-side code:
window
.
addEventListener
(
'memberEvent'
,
function
(
e
)
{
alert
(
e
.
name
+
' just registered!'
);
},
false
);
As you can see, this is a very prototyped approach to achieve a running WebSocket
server, but it's a step forward in adding a usable programming layer on top of the Web‐
Socket protocol.
