Struts file upload (multiple files)

No. 01 Step: Configure Web. xml

<?xml version= "1.0" encoding= "UTF-8"? ><web-app version= "2.4"xmlns= "HTTP://JAVA.SUN.COM/XML/NS/J2EE"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation= "Http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd "><filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.strutsprepareandexecutefilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pat Tern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>index.jsp</we Lcome-file> </welcome-file-list></web-app>

No. 02 Step: Writing The Action class

 Packagecom.self.action;ImportJava.io.File;Importorg.apache.commons.io.FileUtils;ImportOrg.apache.struts2.ServletActionContext;ImportCom.opensymphony.xwork2.ActionContext;/**File Upload **/ Public classFileUpload {Privatefile[] Image;//get the uploaded file    PrivateString[] Imagefilename;//gets the name of the uploaded file, naming the rule: page property name +filename    PrivateString[] Imagecontenttype;//get the type of upload file         PublicFileUpload () {}/**Upload Method **/     PublicString UploadFile () {Try{String Realpath=servletactioncontext.getservletcontext (). Getrealpath ("/images"); System.out.println ("Project Path (/images path, File save path):" +Realpath); if(image!=NULL) {System.out.println ("Already got upload file!" "); File Parentfile=NewFile (Realpath);//Specify file Save path            if(!parentfile.exists ()) {//save path does not exist, createParentfile.mkdirs (); }             for(inti=0;i<image.length;i++) {File saveFile=NewFile (Parentfile,imagefilename[i]);//parentfile: Save path, Imagefilename: Save file nameFileutils.copyfile (Image[i], saveFile);//Copy the uploaded image to SaveFile} actioncontext.getcontext (). Put ("Message", "Saved successfully!" "); }        } Catch(Exception e) {e.printstacktrace (); }        return"Tsuccess"; }     Publicfile[] GetImage () {returnimage; }     Public voidsetimage (file[] image) { This. Image =image; }     Publicstring[] Getimagefilename () {returnImagefilename; }     Public voidsetimagefilename (string[] imagefilename) { This. Imagefilename =Imagefilename; }     Publicstring[] Getimagecontenttype () {returnImagecontenttype; }     Public voidSetimagecontenttype (string[] imagecontenttype) { This. Imagecontenttype =Imagecontenttype; }}

No. 03 Step: Configure Struts.xml

<?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>    <constant name= "struts.action.extension" value= "do,action"/>        <package  extends= "Struts-default" >        class= "Com.self.action.FileUpload" method= "{1}" >            <result name= "tsuccess" >                /outdata.jsp            </result>        </action>    </Package ></struts>

No. 04 Step: Writing The interface

Import= "java.util.*" pageencoding= "Utf-8"%>          file 1:<input type= "file" Name= " Image >           file 2:<input type= "file" name= "image" >           Files 3:<input type= "file" Name= " Image >          <BR>          <input type= "Submit" value= "Upload file" >      </form>  </body> 
No. 05 Step: Precautions
Please refer to the following: Struts file upload (single file)
No. 06 Step: Import the Package
Struts file upload (multiple files)