Neil,
If you want to save the byte array, save it into the database, then just write
a caching proxy that maps a URL to the dispatcher. That is, use
SoftReferenceCache to cache the database read so that the next time the image
is requested there is no database hit.
This has been discussed a fair few times on the list if i remember rightly, so
best off searching the archives if your not sure where to start.
Cheers, Tim
On 15 Nov 2009, at 04:16, Neil.Lv wrote:
>
>
> I want to save the images to a directory, because this images will
> be used in the flash params.
>
> This file path will be used in the javascript code .
> ###
> var imag=new Array();
> imag[3]="/images/01.jpg";
> ###
>
> Cheers,
> Neil
>
> On Nov 15, 12:05 pm, "Neil.Lv" <anim...@gmail.com> wrote:
>> Hi all,
>>
>> Thanks for your tips, and I have some silly question about this.
>>
>> 1:) a directory that's not part of the app's exploded WAR file
>>
>> The direcotry tree like this, and Where is i can create a well
>> defined directory
>> that's not part of the app's exploded WAR file ? I'm not familiar
>> with this.
>>
>> ###
>> demo
>> --src
>> --main
>> --resources
>> --i18n
>> --props
>> --scala
>> --webapp
>> --test
>> --target
>> ###
>>
>> 2:) If I store images to the RDBMS, and how can it be shown in the
>> webpage ?
>> ###
>> FileParamHolder(_, mime, name, data)
>> ....
>> item.receipt(data).receiptMime(mime) // ( Array[Byte] that saved
>> into database )
>> ###
>>
>> :)
>>
>> Thanks very much !
>>
>> Cheers,
>> Neil
>>
>> On Nov 15, 5:43 am, David Pollak <feeder.of.the.be...@gmail.com>
>> wrote:
>>
>>> On Sat, Nov 14, 2009 at 10:25 AM, Neil.Lv <anim...@gmail.com> wrote:
>>
>>>> Tim,
>>
>>>> haha, yeah.
>>
>>>> I use this code to get the images folder(the full path) of the app.
>>
>>>> LiftRules.getResource("/images/").open_!.toString.substring(6)
>>>> (The code is so redundant !)
>>>> -> G:\project\demo\src\main\webapp\images\
>>
>>> You cannot rely on being able to write to a directory in an application.
>>> This is dependent on how the specific web app container handles things, but
>>> I would strongly suggest you write images to a directory that's not part of
>>> the app's exploded WAR file. And "strongly" is a very weak description of
>>> how forceful I'm being about this. This kind of code may change behaviour
>>> between your dev box and production, between versions of your app container.
>>
>>> If you want to store images to serve, either use a well defined directory
>>> outside your WAR file or put stuff in your RDBMS or put stuff up on Amazon
>>> (like Twitter does with images). Amazon has much better infrastructure for
>>> dealing with serving static content than just about anyone else.
>>
>>>> :)
>>
>>>> Thank you very much !
>>
>>>> Cheers,
>>>> Neil
>>
>>>> On Nov 15, 1:50 am, Timothy Perrett <timo...@getintheloop.eu> wrote:
>>>>> Hmm, I guess you must be new to the JVM - you cant write a file inside a
>>>> WAR file; it does not work like that.
>>
>>>>> You'll need to write to a fully qualified path (as per my example).
>>
>>>>> Cheers, tim
>>
>>>>> On 14 Nov 2009, at 17:34, Neil.Lv wrote:
>>
>>>>>> It show this error message:
>>
>>>>>> ERROR - java.io.FileNotFoundException: \images\003.jpg
>>
>>>>>> ######### this is the code
>>
>>>>>> val receiptOk = fileHolder match {
>>>>>> case Full(FileParamHolder(_, null, _, _)) => true
>>>>>> case Full(FileParamHolder(_, mime, name, data))
>>>>>> if mime.startsWith("image/") => {
>>>>>> var buff = new java.io.BufferedInputStream(new ByteArrayInputStream
>>>>>> (data))
>>>>>> try {
>>>>>> var fos = new java.io.FileOutputStream(new File("/images/" +
>>>>>> name))
>>>>>> var in = 0
>>>>>> do {
>>>>>> in = buff.read()
>>>>>> if (in != -1){
>>>>>> fos.write(in)
>>>>>> }
>>>>>> } while((in != -1))
>>>>>> fos = null
>>>>>> in = 0
>>>>>> } catch {
>>>>>> case e => Log.error(e)
>>>>>> } finally {
>>>>>> buff.close()
>>>>>> }
>>>>>> buff = null
>>>>>> true
>>>>>> }
>>>>>> case Full(_) => {
>>>>>> S.error(S.??("invalid.receipt.attachment"))
>>>>>> false
>>>>>> }
>>>>>> case _ => true
>>>>>> }
>>
>>>>>> #########
>>
>>>>>> Maybe this code is wrong ?
>>
>>>>>> new File("/images/" + name)
>>
>>>>>> I want to save it in the main\webapp\images\ folder.
>>>>>> -> main\webapp\images\ 003.jpg
>>
>>>>>> :)
>>
>>>>>> Cheers,
>>>>>> Neil
>>
>>>>>> On Nov 15, 12:23 am, Timothy Perrett <timo...@getintheloop.eu> wrote:
>>>>>>> Neil,
>>
>>>>>>> Try something like:
>>
>>>>>>> var buff = new java.io.BufferedInputStream(input)
>>>>>>> try {
>>>>>>> var fos = new java.io.FileOutputStream(new File("/some/root/
>>>>>>> filepath/" + image_hash_filename))
>>>>>>> var in = 0
>>>>>>> do {
>>>>>>> in = buff.read()
>>>>>>> if (in != -1){
>>>>>>> fos.write(in)
>>>>>>> }
>>>>>>> } while((in != -1))
>>>>>>> fos = null
>>>>>>> in = 0} catch {
>>
>>>>>>> case e => Log.error(e)
>>
>>>>>>> } finally {
>>>>>>> buff.close()
>>>>>>> }
>>>>>>> buff = null
>>>>>>> }
>>
>>>>>>> In my case, I had the data as an input stream - manipulate this code
>>>>>>> to take it however you need.
>>
>>>>>>> Cheers, Tim
>>
>>>>>>> On Nov 14, 7:55 am, "Neil.Lv" <anim...@gmail.com> wrote:
>>
>>>>>>>> Here is some code , but it's wrong!
>>
>>>>>>>> --> java.io.FileNotFoundException: \images\1.jpeg
>>
>>>>>>>> if mime.startsWith("image/") => {
>>>>>>>> try{
>>>>>>>> var file: File = new File("/images/1.jpeg");
>>>>>>>> var fos:FileOutputStream = new FileOutputStream(file);
>>>>>>>> fos.write(data)
>>>>>>>> } catch {
>>>>>>>> case e => println("exception: " + e)
>>>>>>>> }
>>>>>>>> e.receipt(data).receiptMime(mime)
>>>>>>>> true
>>>>>>>> }
>>
>>>>>>>> I don't know how to write the code in the try catch statement.
>>
>>>>>>>> Does anyone can help me ?~
>>
>>>>>>>> Thanks very much !
>>
>>>>>>>> Cheers,
>>>>>>>> Neil
>>
>>>>>>>> On Nov 14, 1:58 pm, "Neil.Lv" <anim...@gmail.com> wrote:
>>
>>>>>>>>> Hi all,
>>
>>>>>>>>> How to save the uploaded image into the folder via fileUpload in
>>>>>>>>> Lift?
>>
>>>>>>>>> I don't want to save it in the database, the example code in the
>>>>>>>>> Pocketchangeapp
>>
>>>>>>>>> ###
>>>>>>>>> val receiptOk = fileHolder match {
>>>>>>>>> case Full(FileParamHolder(_, null, _, _)) => true
>>>>>>>>> case Full(FileParamHolder(_, mime, _, data))
>>>>>>>>> if mime.startsWith("image/") => {
>>>>>>>>> // How can i save the data into a image in the folder.
>>>>>>>>> e.receipt(data).receiptMime(mime)
>>>>>>>>> true
>>>>>>>>> }
>>>>>>>>> case Full(_) => {
>>>>>>>>> S.error("Invalid receipt attachment")
>>>>>>>>> false
>>>>>>>>> }
>>>>>>>>> case _ => true
>>>>>>>>> }
>>>>>>>>> ###
>>
>>>>>>>>> To save the image into the webapp\images folder, and it's shown
>>>>>>>>> just use this link:
>>>>>>>>> /images/img1.jpg
>>
>>>>>>>>> Thanks for any suggestion!
>>
>>>>>>>>> Cheers,
>>>>>>>>> Neil
>>
>>> --
>>> Lift, the simply functional web frameworkhttp://liftweb.net
>>> Beginning Scalahttp://www.apress.com/book/view/1430219890
>>> Follow me:http://twitter.com/dpp
>>> Surf the harmonics
> >
>
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