STRUTS2 implementation file download function code sharing (filename Chinese transcoding) _java

The implementation code for the Struts2 file download function is as follows:

Action file

public class Downloadaction extends Actionsupport {/** * */private static final long Serialversionuid = 58797622317 
42395104L; private string filename;//User-requested filename private string inputpath;//The path of the download resource (set in the Struts configuration file) public void Setinputpath (String i 
Nputpath) {This.inputpath = InputPath; 
Public String Getinputpath () {return inputpath; 
public void Setfilename (String fileName) {this.filename = filename; 
Public String GetFileName () {return fileName; 
Public String DownloadFile () throws Exception {ServletContext context = Servletactioncontext.getservletcontext (); 
String Downloaddir = Context.getrealpath ("/upload"); 
String downloadFile = Context.getrealpath (InputPath); 
Prevents users from requesting unsafe resources if (!downloadfile.startswith (Downloaddir)) {return null; 
Return to "download_success";  * * * Get input stream resource/public InputStream getInputStream () throws Exception {String path = InputPath + File.separatorchar 
+ New String (Filename.getbytes ("iso-8859-1"), "UTF-8"); Return SErvletactioncontext.getservletcontext (). getResourceAsStream (path); 
* * * Get the file's default filename when downloading/* public string Getdownloadfilename () {string downloadfilename = filename; 
try {downloadfilename = Urlencoder.encode (DownloadFileName, "iso-8859-1"); 
catch (Unsupportedencodingexception e) {e.getmessage (); 
E.printstacktrace (); 
return downloadfilename;  } 
}

JSP file:

<li> 
<a href= "<%=path%>/download_downloadaction_downloadfile.action?filename=dwr.jar" > Dwr.jar file under </a> 
</li> 
<li> 
<a href= "<%=path%>/download_downloadaction_ Downloadfile.action?filename=struts2 Tutorial. pdf ">struts2 tutorial. pdf file Under </a> 

Struts.xml:

<action name= "download_*_*" class= "Com.wang.action". {1} "method=" {2} "> 
<param name=" InputPath ">/upload</param> 
<!--result type is set to stream-- > 
<result name= "download_success" type= "stream" > 
<!--MIME type--> <param name= 
" ContentType ">application/octet-stream</param> 
<!--inputname value and action gets the input stream resource's method name ( The getInputStream method is defined in the action and the return type is InputStream)--> 
<param name= "InputName" >inputStream</param> 
<!--setting files with attachments dynamic get file name (Getdownloadfilename method defined in action)--> 
<param name= "Contentdisposition" > Attachment;filename= "${downloadfilename}" </param> 
<!--set buffer size--> 
<param name= " BufferSize ">2048</param> 
</result> 

The above is a small series to introduce the STRUTS2 implementation of file download function code sharing (filename Chinese transcoding) related content, I hope to help!