Java Reference
In-Depth Information
In c11/EnterShipInfoJSP before the form, insert an
if
tag with a test that checks if the
request type is a post.
12.
13.
Change c11/EnterShipInfoJSP, so that if the request is a post, the crtShipBean tags are
executed with the
source
attribute specified as
request
. (Make sure the tags prefixes are
TNT.)
14.
Change c11/EnterShipInfoJSP, so that after the ShipBean is created the insShip tags are
executed and a JSP
forward
to ConfirmIns.jsp is executed.
The Shipment application never had an extractor class (as the employee application did). Therefore, the
CrtShipBean class will perform that function (i.e., retrieve the Shipment information from the request and populate
the
Shipment
object properties). The Java Resources/ src/c11/CrtShipBean's doStartTag method needs to be
overridden to do the following:
If the
source
attribute is equal to request:
A.
Create a null
Shipment
object.
B.
Retrieve the shipment information (from the request parameter values) and set the
appropriate shipment properties.
If the
source
attribute is equal to database:
A.
Create a
Shipment
object using the shipment number entered in shipNumTF
Then, in either case, define the
Shipment
object as a session attribute called ShipBean.
15.
To do the above, add the following class variables definitions to CrtShipBean:
private
String source =
null
;
Shipment ship;
16.
Create a getter and setter for the variable source.
17.
Override the doStartTag method and add the following statements to the doStartTag
method:
if (source == "request"){
ship = new Shipment();
ship.setShipmentNum(pageContext.getRequest().getParameter("shipNumTF").toString());
ship.setSupplierName(pageContext.getRequest().getParameter("suppNameTF").toString());
ship.setRcvMon(pageContext.getRequest().getParameter("MonthDDM").toString());
ship.setRcvDay(pageContext.getRequest().getParameter("DayDDM").toString());
ship.setRcvYear(pageContext.getRequest().getParameter("YearDDM").toString());
ship.setRcvHour(pageContext.getRequest().getParameter("HourDDM").toString());
ship.setRcvMin(pageContext.getRequest().getParameter("MinuteDDM").toString());
ship.setRcvAMPM(pageContext.getRequest().getParameter("AMPMDDM").toString());
ship.setEmployeeNum(pageContext.getRequest().getParameter("empNumTF").toString()); }
if
(source == "database"){
ship =
new
Shipment(pageContext.getRequest().getParameter(" shipNumTF").toString()); }
pageContext.getSession().setAttribute("ShipBean", ship);
18.
Override the Java Resources/src/c11/InsertShip doStartTag method to get the ShipBean
(using the
PageContext
object) and execute its doInsert method.
