Application Object In Servlets

First off, I'm new to writing servlets so forgive my ignorance...
How do I get the application object within the init method of an HttpServlet? I want to call some methods on it (e.g. getRealPath) but I get compile errors because I'm not sure how to get the application object.

public void init(ServletConfig config) {
ServletContext sc = config.getServletContext();
String path = sc.getRealPath("/"); // or something like that
}

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How to get an ArrayList Object in servlet from JSP?
hi all
please give the solution for this without using session and application...
In test1.jsp file
i am setting values for my setter methods using <jsp:usebean> <jsp:setproperty> tags as shown below.
After that i am adding the usebean object to array list, then using request.setAttribute("arraylist object")
---------Code----------
<jsp:useBean id="payment" class="com.common.PaymentHandler" scope="request" />
<jsp:setProperty name="payment" property="strCreditCardNo" param="creditCardNumber" />
<%-- <jsp:setProperty name="payment" property="iCsc" param="securityCode" /> --%>
<jsp:setProperty name="payment" property="strDate" param="expirationDate" />
<jsp:setProperty name="payment" property="strCardType" param="creditCardType" />
<%--<jsp:setProperty name="payment" property="cDeactivate" param="deactivateBox" />
<jsp:setProperty name="payment" property="fAmount" param="depositAmt" />
<jsp:setProperty name="payment" property="fAmount" param="totalAmtDue" /> --%>
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<%
lis.add(payment);
%>
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<%
request.setAttribute("lis1",lis);
%>
-----------Code in JSP-----------------
In testServlet.java
i tried to get the arraylist object in servlet using request.getAttribute
But I unable to get that arrayObject in servlet.....
So if any one help me out in this, it will be very helpfull to me..
Thanks in Advance
Edward

Hi,
Im also facing the similar problen
pls anybody help..
thax in advance....
Litty

The "application" object

the "application" object can be called within a JSP file.
What if I wanna call it within a JavaBean class? How do I instantiate it?

The application object is the servletcontext that is passed to the servlet/JSP by the server during initialization. If you want to use it in a JavaBean you'll have to pass it in.
<jsp:useBean id="myBean" scope="session" class="beans.MyBean" />
<% myBean.setApplication(application); %>
and in MyBean
import javax.servlet.*;
public class MyBean {
   ServletContext sc;
   public MyBean() { }
   public void setApplication(ServletContext inSC) { this.sc = inSC; }
}

Extracting URL From Application Object

If I type http://mymachine.com/myapp?a=aaa&b=bbb in my browser (to access application "myapp") how do I extract just the http://mymachine.com/myapp part from the application object? I would have figured that the code below would allow me to construct that string but these methods instead return the stuff in comments...
URL theURL = application.getResource("/");
theURL.getProtocol(); // jndi
theURL.getHost(); // null
theURL.getPort(); // -1
theURL.getFile(); // org.apache.naming.resources.FileDirContext@!8bf135
URL theURL = application.getResource("/myapp");
theURL.getProtocol(); // null pointer exception
theURL.getHost(); // null pointer exception
theURL.getPort(); // null pointer exception
theURL.getFile(); // null pointer exception

tech note... HttpUtils is depricated for newer Servlet APIs (2.3+). Instead, you would use the same methods in the HttpServletRequest:
URL theURL = new URL(request.getRequestURL().toString());

Invalid method "Save As" from Excel application object

I have Windows 2000 and Excel 2002 installed on my machine.
I down loaded "renamed Excel 2000 workbook.vi" from NI website. Relinked ref num to Excel application object but get the error of invalid method (Save As). Tried to relink invoke node to Save As by selecting method from drop down menu. However this method is not on the list. Tried other excel objects but can not find "Save As" method. Has this been removed/moved?

I was able to correct the error by relinking the Workbooks->Open to Open. This changes the subsequent Invoke Node from IAppEvents to _Workbook. There you will find the Save As method.
Michael
www.abcdefirm.com
Michael Munroe, ABCDEF
Certified LabVIEW Developer, MCP
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I need to get the Excel.application object from a window handle using AccessibleObjectFromWindow. I can't seem to make the code work. First, I successfully search for the XLMAIN windows. Then, when I get a handle, I execute the AccessibleObjectFromWindow
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If it is an error value, I believe that one or more arguments are in error. My best guess at present is that the GUID argument is incorrect. I have tried two GUID values: {00020400-0000-0000-C000-000000000046} and {90140000-0016-0409-0000-0000000FF1CE}.
I have seen both used in conjunction with OBJID_NATIVEOM. Neither one seems to work. I really would prefer not to use the second one as it has an Excel major and minor version number. I would hate to have to change this code, if a new minor version appeared.
The attached code has been commented to show which parts have been shown to work and which not. I'm at my wits end and really need help.
Thanks
'This module is located in Access 2010, but this is an Excel question.
Option Compare Database
Option Explicit
' Module-Level Declarations
'The GetDesktopWindow function and FindWindowEx function work just fine.
Public Declare Function GetDesktopWindow Lib "user32" () As Long
Public Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" _
(ByVal hWnd1 As Long, _
ByVal hWnd2 As Long, _
ByVal lpsz1 As String, _
ByVal lpsz2 As String) _
As Long
'I'm not getting the expected output from this function (see below)
Private Declare Function AccessibleObjectFromWindow& Lib "oleacc.dll" _
(ByVal hwnd&, _
ByVal dwId&, _
riid As GUID, _
xlwb As Object)
Type GUID
lData1 As Long
iData2 As Integer
iData3 As Integer
aBData4(0 To 7) As Byte
End Type
Function ExcelInstances() As Long
' Procedure-Level Declarations
' Value of OBJID_NATIVEOM verified by checking list of Windows API constants _
on this site: http://www.lw-tech.com/q1/base.htm
Const OBJID_NATIVEOM = &HFFFFFFF0
Dim hWndDesk As Long 'Desktop window
Dim hWndXL As Long 'Child window
Dim objExcelApp As Object 'Final result wanted: Excel application object
'Following variable (xlapp) to be set by AccessibleObjectFromWindow function
Dim xlapp As Object
Dim IDispatch As GUID 'GUID used in call to AccessibleObjectFrom Window function
'Set up GUID to be used for all instances of Excel that are found
Dim tmp1 As Variant 'Return value from AccessibleObjectFromWindow
' Executable Statements
SetIDispatch IDispatch
IDispatch = IDispatch
'Get a handle to the desktop
hWndDesk = GetDesktopWindow 'This seems to work
Do
'Get the next Excel window
'The following statement seems to work. We are finding and counting _
correctly all the instances of Excel. hWndXL is non-zero for each _
instance of Excel
hWndXL = FindWindowEx(GetDesktopWindow, hWndXL, "XLMAIN", vbNullString)
'If we got one, increment the count
If hWndXL > 0 Then
'This works. We correctly count all _
instances of Excel
ExcelInstances = ExcelInstances + 1
'Here is the problem. The following statement executes and returns a value of _
-2147467262. xlapp, which is passed by reference to AccessibleObjectFromWindow, _
is set to nothing. It should be set to the object for Excel.application. _
I believe that this value is not an object. I tried to reference tmp1. in the _
immediate window. There was no Intellisense.
'I think that the function in returning an error value, but I can't figure _
out what it is. I believe that AccessibleObjectFromWindow returns error _
values, but I don't know where to find their values so I can interpret the _
function's results.
'As best I can tell, the hWndXL parameter is correct. It is the handle for _
an instance of Excel. OBJID_NATIVEOM is set correctly (see constant declaration _
above). xlapp is passed by reference as a non-initialized object variable, which _
will be set by AccessiblObjectFromWindow. IDispatch may be the problem. It is set _
as shown below in the procedure SetIDispatch(ByRef ID As GUID). This procedure _
appears to work. I can see that IDispatch is set as I intended and correctly _
passed to AccessibleObjectFromWindow.
tmp1 = AccessibleObjectFromWindow(hWndXL, OBJID_NATIVEOM, IDispatch, xlapp)
'Need to write code to test tmp1 for error. If none, then set objExcelApp = _
object. Also, I exect xlapp to be set to Excel.application
End If
'Loop until we've found them all
Loop Until hWndXL = 0
End Function
Private Sub SetIDispatch(ByRef ID As GUID)
'Defines the IDispatch variable. The interface _
ID is {90140000-0016-0409-0000-0000000FF1CE}.
'NOT USING {00020400-0000-0000-C000-000000000046}, _
which could be the problem
'9 is release version - first version shipped (initial release)
'0 is release type - retail/oem
'14 is major version
'0000 is minor version
'0016 is product ID - MS Excel 2010
'0409 is language identifier - English
'0 is x86 or x64 - this is x86
'000 reserved
'0 is debug/ship
'000000FF1CE is office family ID
With ID
.lData1 = &H90140000
.iData2 = &H16
.iData3 = &H409
.aBData4(0) = &H0
.aBData4(1) = &H0
.aBData4(2) = &H0
.aBData4(3) = &H0
.aBData4(4) = &H0
.aBData4(5) = &HF
.aBData4(6) = &HF1
.aBData4(7) = &HCE
End With
End Sub
DaveInCalabasas

I don't think you can return a reference to Excel's main window like that as you are attempting to do.
Ref:
http://msdn.microsoft.com/en-us/library/windows/desktop/dd317978(v=vs.85).aspx
It's relatively straightforward to return any workbook's window in any given instance, and in turn it's parent Excel app. Try the following and adapt as required (and include error handling) -
Option Explicit
Private Declare Function FindWindowEx Lib "User32" Alias "FindWindowExA" _
(ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, _
ByVal lpsz2 As String) As Long
Private Declare Function IIDFromString Lib "ole32" _
(ByVal lpsz As Long, ByRef lpiid As GUID) As Long
Private Declare Function AccessibleObjectFromWindow Lib "oleacc" _
(ByVal hWnd As Long, ByVal dwId As Long, ByRef riid As GUID, _
ByRef ppvObject As Object) As Long
Private Type GUID
Data1 As Long
Data2 As Integer
Data3 As Integer
Data4(7) As Byte
End Type
Private Const S_OK As Long = &H0
Private Const IID_IDispatch As String = "{00020400-0000-0000-C000-000000000046}"
Private Const OBJID_NATIVEOM As Long = &HFFFFFFF0
Sub test()
Dim i As Long
Dim hWinXL As Long
Dim xlApp As Object ' Excel.Application
Dim wb As Object ' Excel.Workbook
hWinXL = FindWindowEx(0&, 0&, "XLMAIN", vbNullString)
While hWinXL > 0
i = i + 1
Debug.Print "Instance_" & i; hWinXL
If GetXLapp(hWinXL, xlApp) Then
For Each wb In xlApp.Workbooks
Debug.Print , wb.Name
Next
End If
hWinXL = FindWindowEx(0, hWinXL, "XLMAIN", vbNullString)
Wend
End Sub
'Function GetXLapp(hWinXL As Long, xlApp As Excel.Application) As Boolean
Function GetXLapp(hWinXL As Long, xlApp As Object) As Boolean
Dim hWinDesk As Long, hWin7 As Long
Dim obj As Object
Dim iid As GUID
Call IIDFromString(StrPtr(IID_IDispatch), iid)
hWinDesk = FindWindowEx(hWinXL, 0&, "XLDESK", vbNullString)
hWin7 = FindWindowEx(hWinDesk, 0&, "EXCEL7", vbNullString)
If AccessibleObjectFromWindow(hWin7, OBJID_NATIVEOM, iid, obj) = S_OK Then
Set xlApp = obj.Application
GetXLapp = True
End If
End Function
Note as written if an instance does not have any loaded workbooks a reference will not be returned (though a workbook can be added using DDE, but convoluted!)
FWIW there are two other very different approaches to grab all running Excel instances though something along the lines of the above is simplest.
Peter Thornton

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[email protected],
> I got the error of 1603 when I ran Office 2003 MSI package through NAL
>
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- Anders Gustafsson, Engineer, CNE6, ASE
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Novell does not monitor these forums officially.
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Hi,
I hava a .jsp page and an import statement to a .java file. How can I access the application object in this .java file?
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The only way to get a hold of the application object would be to pass it to java code as a parameter to a method.
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helge

Helge,
It appears that in the past few days you have not received a response to your
posting. That concerns us, and has triggered this automated reply.
Has your problem been resolved? If not, you might try one of the following options:
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William Wilstroth

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Application object content search across multiple (many) objects

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> Hi guys,
>
> I have about 500 application objects and one of these is pushing through
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>
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Objects through servlet

How to pass the object through servlet?

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i am using the 'Outlook.Application' object to create a new outlook email item in my ABAP code. everything is fine except when i'm creating an attachment, i don't know how to attach a file to my email. My code look like this.
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thanks guys.
i found the answer. here it is.
CALL METHOD OF lr_at 'Add'
EXPORTING #1 = 'C:\eraseable.xls'.

Application Object In Servlets

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