struts2 implement file upload download (download support chinese file name) code

struts2 Implement File Upload:

Action Code:

Package Com.action;import Java.io.file;import Java.io.fileinputstream;import java.io.fileoutputstream;import Java.io.inputstream;import Java.io.outputstream;import Org.apache.struts2.servletactioncontext;import Com.opensymphony.xwork2.actionsupport;public class Fileuploadaction extends baseaction{/** * */private static final Long serialversionuid = 1l;/** * files stored in temporary folder after uploading */private file <span style= "color: #ff0000;" >file;</span>/** * File name */private String <span style= "color: #ff0000;" >filefilename</span>;/** * file MIME type */private string<span style= "color: #ff0000;" > filecontenttype</span>;/** * Saved path */private string Savepath;public string Getsavepath () {return savepath;} public void Setsavepath (String savepath) {this.savepath = Savepath;} Public file GetFile () {return file;} public void Setfile (file file) {this.file = file;} Public String Getfilefilename () {return filefilename;} public void Setfilefilename (String filefilename) {this.filefilename = Filefilename;} Public String Getfilecontenttype () {return filecontenttype;} public void Setfilecontenttype (String filecontenttype) {this.filecontenttype = Filecontenttype;} Public String Execute () throws exception{string root = Servletactioncontext.getservletcontext (). Getrealpath (Savepath)        ;        InputStream is = new FileInputStream (file);                        OutputStream OS = new FileOutputStream (new File (Root, Filefilename));        byte[] buffer = new BYTE[500];                @SuppressWarnings ("unused") int length = 0;        while ( -1! = (length = is.read (buffer, 0, buffer.length))) {os.write (buffer);        } os.close ();                        Is.close (); return SUCCESS;}}

Struts2.xml configuration information:

<?xml version= "1.0" encoding= "UTF-8"? ><! DOCTYPE struts public        "-//apache software foundation//dtd struts Configuration 2.0//en"        "/http Struts.apache.org/dtds/struts-2.0.dtd ">          <struts><package name=" FileUpload "extends=" Struts-default "namespace="/"><action name=" fileupload_* "class=" com.action.FileUploadAction "method=" {1} " >           <param name= "Savepath" >/upload</param>//Note Build a upload folder in the current project          <result>/login.jsp </result> </action></package></struts>

JSP page for file upload:

<form action= "Fileupload.action" method= "post" enctype= "Multipart/form-data" >        file: <input type= "File" Name= "File"/><br>        <input type= "Submit" value= "Submit"/>    </form>

struts2 implement file download source code:support Chinese file nameNote: The size of the download file setting problem, the default is 2M. can be set in Struts.properties struts.multipart.maxsize=10485760 (10M size according to your own situation)Code for Action:

Package Com.action;import Java.io.ioexception;import Java.io.inputstream;import Org.apache.struts2.servletactioncontext;public class Filedownloadaction extends baseaction{/** *  */private Static final Long Serialversionuid = 1l;/** * File name */private string Filename;public string GetFileName () throws Ioexceptio n {<span style= "color: #ff0000;" >return  New String (Filename.getbytes (), "iso8859-1");//transcoding to enable it to support Chinese, otherwise cannot display the file name of the middle character </span>}public void Setfilename (String fileName) {this.filename = FileName;;} public InputStream getInputStream () throws exception{return Se Rvletactioncontext.getservletcontext (). getResourceAsStream (FileName);     }     Public String Execute () throws Exception{return SUCCESS;}}

Download the Struts2.xml configuration information:

<action name= "Download" class= "com.action.FileDownloadAction" ><result type= "stream" Name= "Success" > <param name= "contentdisposition" >attachment;filename= "${filename}" </param><param name= " ContentType ">application/octet-stream;charset=iso8859-1</param><param name=" InputName "><span style= "COLOR: #ff0000;" >InputStream</span></param>//inputstream is an action in <span style= "font-family:arial; font-size:14px; line-height:26px; " >getinputstream () method remove get, to be consistent </span><param name= "buffersize" >10485760</param>//file size (10M) </result></action>

JSP page:

<a href= "download.action?filename=upload/remember 11er.mp3" > click Download </a>

struts2 implement file upload download (download support chinese file name) code