ColdFusion 9.0 Resources |
cffile action = "write"DescriptionWrites a text file on the server, based on dynamic content. You can create static HTML files from the content, or log actions in a text file. Syntax<cffile action = "write" file = "full pathname" output = "content" addNewLine = "yes|no" attributes = "file attributes list" charset = "character set option" fixnewline = "yes|no" mode = "permission"> Note: You
can specify this tag’s attributes in an attributeCollection attribute
whose value is a structure. Specify the structure name in the attributeCollection attribute
and use the tag’s attribute names as structure keys.
Attributes
ExampleThis example creates a file with information a user entered in an HTML insert form: <cffile action = "write" file = "c:\files\updates\#Form.UpdateTitle#.txt" output = "Created By: #Form.FullName# Date: #Form.Date# #Form.Content#"> If the user submitted a form with the following: UpdateTitle = "FieldWork" FullName = "World B. Frueh" Date = "10/30/01" Content = "We had a wonderful time in Cambridgeport." ColdFusion would create a file named FieldWork.txt in the c:\files\updates\ directory and the file would contain the following text: Created By: World B. Frueh Date: 10/30/01 We had a wonderful time in Cambridgeport. This example shows the use of the mode attribute for UNIX. It creates the file /tmp/foo with permissions rw-r--r-- (owner = read/write, group = read, other = read): <cffile action = "write" file = "/tmp/foo" mode = 644> This example appends to the file and sets permissions to read/write (rw) for all: <cffile action = "append" destination = "/home/tomj/testing.txt" mode = 666 output = "Is this a test?"> This example uploads a file and gives it the permissions owner/group/other = read/write/execute): cffile action = "upload" fileField = "fieldname" destination = "/tmp/program.exe" mode = 777> This example uses the fixnewline attribute to changes embedded line-ending characters in xmlString, which is derived from xmlData, to operating-system specific line endings. <cfxml variable="xmlData"> <docroot> <payload type="string">This is some plain text</payload> </docroot> </cfxml> <cfset xmlString = toString(xmlData)> <cfset key = createUUID()> <cfset encString=encrypt(xmlString, key)> <cffile action="write" addnewline="yes" file="C:\ColdFusion9\wwwroot\test\store.dat" output="#encString#" fixnewline="yes"> <cffile action="read" file="C:\ColdFusion9\wwwroot\test\store.dat" variable="retrievedString"> <cfset decString=decrypt(retrievedString, key)> <cfdump var="#decString#"> <cfset newXML = xmlParse(decString)> <cfdump var="#newXML#"> ColdFusion supports using cffile to write an image, for example: <!--- Create a new cfimage. ---> <cfset myImage=ImageNew("",200,200)> <!--- Draw a square on the image. ---> <cfset ImageDrawRect(myImage,10,10,100,100)> <!--- Use cffile to write the cfimage to a JPG. ---> <cffile action="write" output="#myImage#" file="c:\cfpix\square.jpg"> |