BBjFileUpload

Creation Path

BBjServletEvent

+-- BBjHttpRequest

+-- BBjFileUpload

Description

In BBj 14.0 and higher, BBjFileUpload contains all of the information related to files uploaded to a BBjServlet.

Creation

A BBjFileUpload object is obtained with the following BBjHttpRequest methods:

Return Value	Method
BBjFileUpload	getFileUpload(string name)
BBjVector	getFileUploads()

Methods of BBjFileUpload

Return Value	Method
long	getContentLength()
string	getContentType()
string	getFieldName()
string	getOriginalName()
string	getTempName()

Remarks

The example below demonstrates how to upload files to a servlet. When the servlet is executed, the uploaded files are stored temporarily and it is the responsibility of the developer to copy the files during the servlet execution cycle. All the files are removed when the servlet execution ends.

The form used for the HTTP Post needs to specify: enctype='multipart/form-data'

The form elements should have unique name identifiers which can be used with the getFileUpload(string name) method.

Example

Copy

BBjFileUpload Example

REM Obtain the instance of the BBjAPI object
LET myAPI!=BBjAPI()
data! = BBjAPI().getServletData(err=publish)

MyServlet! = new MyServlet()
 
data!.setCallback(data!.ON_WEB_CONNECTION, myServlet!, "myMethod")
 
PROCESS_EVENTS
 
class public MyServlet
  method public void myMethod(BBjServletEvent p_event!)
    LET chan = UNT
    request! = p_event!.getHttpRequest()
    response! = p_event!.getHttpResponse()
    response!.setContentType("text/html")
    open(chan)"JSERVLET"
    print(chan)"<html><body><h1>Hello BBj!</h1>"
    declare auto BBjVector files!
    files! = request!.getFileUploads()
    sz = files!.size()
    if sz then
      declare BBjFileUpload uploadFile!
      print(chan)"There were " + str(sz) + " files uploaded.<br>"
      for i=0 to sz-1
        uploadFile! = cast(BBjFileUpload,files!.get(i))
        print(chan)"Field:" + uploadFile!.getFieldName()
        print(chan)"- Name:"+ uploadFile!.getOriginalName()
        print(chan)"- Temp Name:"+ uploadFile!.getTempName()
        print(chan)"- Type:"+ uploadFile!.getContentType()
        print(chan)"- Size:"
        print(chan)uploadFile!.getContentLength()
        print(chan)"<br>"
      next i
    else
      print(chan)"There were no files uploaded, please upload some:<br>"
      print(chan)"<form id='upload' method='post' action='upload' enctype='multipart/form-data' >"
      print(chan)"<input id='file1' name='file1' type='file' /><br>"
      print(chan)"<input id='file2' name='file2' type='file' /><br>"
      print(chan)"<input id='file3' name='file3' type='file' /><br>"
      print(chan)"<input type='submit' value='submit' id='submit' />"
      print(chan)"</form>"
 
    fi
    print(chan)"</body></html>"
    close(chan)
  methodend
classend

publish:

admin! = BBjAPI().getAdmin("admin", "admin123")
registry! = admin!.getServletRegistry()
config! = BBjAPI().getConfig()
appServer! = admin!.getWebAppServer()

application! = appServer!.makeEmptyAppConfig()
application!.setProgramName(pgm(-1))
application!.setWorkingDirectory(dsk("")+dir(""))
application!.setConfigFile( BBjAPI().getConfig().getCurrentCommandLineObject().getConfigFile())
application!.setClasspathName(BBjAPI().getConfig().getCurrentCommandLineObject().getOriginalClasspathName())

bridgeurl$="/upload"
registry!.unpublish(bridgeurl$, err=*next)
registry!.publish(bridgeurl$, application!)

release