With all required libraries
Download: struts-ajax-crud.zip
File size:2.24 MB
Download: struts-ajax-crud.zip
File size:2.24 MB
Showing posts with label Struts Code. Show all posts
Showing posts with label Struts Code. Show all posts
Downloading File in struts using DownloadAction, Struts Download File Action, Download Code for file download in struts.
Implementing a DownloadAction
You need to extend org.apache.struts.actions.DownloadAction and implement the getStreamInfo() method. Optionally you can also override the getBufferSize() method if you require a different buffer size from the default.
Implement the getStreamInfo() Method
The getStreamInfo() method returns a StreamInfo object - which is an inner interface of the DownloadAction. The DownloadAction provides two concrete implementations (static inner classes) of the StreamInfo interface:
* FileStreamInfo - Simplifies downloading of a file from disk - need to pass a java.io.File object to the constructor along with the content type.
* ResourceStreamInfo - simplifies downloading of a web application resource - need to pass the ServletContext, path and content type to its constructor.
In the examples below referring by link, I have also provided a Byte array implementation of the StreamInfo interface. Implement the getBufferSize() Method.
The DownloadAction, by default, returns a buffer size of 4096. Optionally, this may be overriden to customize the size of the buffer used to transfer the file.
Link Shows here below is having three examples:
* using a File
* using a web application resource
* using a byte array.
File size:5.73 KB
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