Use CF add password to excel

Question

Use poi how to add password to excel file.
http://kickjava.com/src/org/apache/poi/hssf/model/Workbook.java.htm
http://jakarta.apache.org/poi/apidocs/org/apache/poi/hssf/record/RecordInputStream.html
I am use this component for read and write excel
<!---
* Application: Excel workbook Component 0.1
* File Name: CFWorkbook.cfc
* CFC Component Name: CFWorkbook
* Created By: Wayne Deng
http://blog.waynedeng.com
* Created: 2006-3-5
* Description: A excel workbook component based on
HSSFWorkbook
http://jakarta.apache.org/poi/hssf/
--->
<cfcomponent name="CFWorkbook">
<cfscript>
this.HSSFWorkbook = "";
this.WorkSheets = ArrayNew(1);
</cfscript>
<cffunction name="init" access="public" output="false">
<cfset this.HSSFWorkbook =
createObject("java","org.apache.poi.hssf.usermodel.HSSFWorkbook").init()/>
<cfreturn this />
</cffunction>
<cffunction name="createSheet" access="public"
returntype="CFWorkSheet">
<cfargument name="sheetName" type="string"
required="false" default="">
<cfset var workSheet =
createObject("component","CFWorksheet").init(this)>
<cfset workSheet.sheetNumber =
ArrayLen(this.WorkSheets)>
<cfset this.WorkSheets[ArrayLen(this.WorkSheets)+1] =
workSheet>
<cfif arguments.sheetName neq ''>
<cfset setSheetName(workSheet.sheetNumber,
arguments.sheetName)>
</cfif>
<cfreturn workSheet>
</cffunction>
<cffunction name="setSheetName" access="public"
returntype="void">
<cfargument name="sheetNum" type="numeric"
required="true">
<cfargument name="sheetName" type="string"
required="true">
<cfset
this.HSSFWorkbook.setSheetName(JavaCast("int",arguments.sheetNum),
arguments.sheetName, this.HSSFWorkbook.encoding_utf_16)/>
</cffunction>
<cffunction name="saveToFile" access="public"
returntype="void">
<cfargument name="filePath" type="string"
required="true">
<cfset var fileOutStream =
createObject("java","java.io.FileOutputStream").init(arguments.filePath)/>
<cfset this.HSSFWorkbook.write(fileOutStream)/>
<cfset fileOutStream.close()/>
</cffunction>
<cffunction name="loadFile" access="public"
output="false">
<cfargument name="filePath" type="string"
required="true">
<cfset var fileIn =
createObject("java","java.io.FileInputStream").init(arguments.filePath)/>
<cfset var fs =
createObject("java","org.apache.poi.poifs.filesystem.POIFSFileSystem").init(fileIn)/>
<cfset var i = 0>
<cfset var workSheet = "">
<cfset this.HSSFWorkbook =
createObject("java","org.apache.poi.hssf.usermodel.HSSFWorkbook").init(fs)/>
<cfset this.WorkSheets = ArrayNew(1)>
<cfloop from="0"
to="#this.HSSFWorkbook.getNumberOfSheets()#" index="i">
<cfset workSheet =
createObject("component","CFWorksheet").init(this)>
<cfset workSheet.sheetNumber = i>
<cfset workSheet.HSSFWorksheet =
this.HSSFWorkbook.getSheetAt(JavaCast("int",i))>
<cfset this.WorkSheets[i+1] = workSheet>
</cfloop>
</cffunction>
<cffunction name="getColorIndex" access="public"
returntype="numeric">
<cfargument name="ColorName" required="true" type="string"
hint="">
<cfif arguments.ColorName neq ''>
<cfreturn
createObject("java","org.apache.poi.hssf.util.HSSFColor$#ucase(arguments.ColorName)#").ge tIndex()
/>
<cfelse>
<cfreturn 0>
</cfif>
</cffunction>
</cfcomponent>

Answer 1

You would have to get into the VBA programming in order to do
this. Why don't you just have a login function for the page with
these CFCs? That would restrict access to the Excel file.