For implementing multiple file upload all u need to do is have and Arraylist to save file in it and render it to upload through ActionForm.
This works the same way.
1)ActionForm
2)Action classes
3)struts-config.xml
4)jsps
/*ActionForm-----UploadForm.java*/
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mypack;
import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
/**
*
* @author ANUJ ANEJA
*/
public class UploadForm extends ActionForm {
private FormFile theFile;
private ArrayList listFile;
private int index=0;
public UploadForm() {
System.out.println("uploadForm constructor");
listFile=new ArrayList();
this.index=0;
}
public FormFile getTheFile(int index)
{
return this.theFile;
}
public void setTheFile(int index,FormFile theFile )
{
System.out.println("setter");
this.theFile=theFile;
setListFile(theFile);
this.index++;
}
public ArrayList getListFile()
{
return this.listFile;
}
public void setListFile(FormFile theFile)
{
this.listFile.add(index, theFile);
}
public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
return super.validate(mapping, request);
}
}
/* uploadAction to save all the file over server*/
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mypack;
import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
/**
*
* @author ANUJ ANEJA
*/
public class UploadAction extends Action{
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
String forward="failure";
try{
UploadForm myform=(UploadForm)form;
System.out.println("Pass>>>>>>>>>"+myform);
ArrayList al=myform.getListFile();
System.out.println("Pass1111>>>>>>>>>");
System.out.println("Size of Array List:" + al.size());
System.out.println("Entering the for loop...");
for(int i=0;i<al.size();i++){
// get file from the bean
FormFile ff = (FormFile) al.get(i);
String fname = ff.getFileName();
if(fname.length()==0) {
continue;
}
System.out.println("File Name :" + fname);
System.out.println("File Name length:" + fname.length());
System.out.println("file type:" + ff.getContentType());
int size = ff.getFileSize();
// save file in the app server
//File newFile = new File(getServlet().getServletContext().getRealPath("") + "/temp/" + ff.getFileName());
File newFile=new File("c:\\upload\\"+ff.getFileName());
if(!newFile.exists()){
FileOutputStream fos = new FileOutputStream(newFile);
fos.write(ff.getFileData());
fos.close();
}
request.setAttribute("fileName["+i+"]",fname);
}
// String contentType=myfile.getContentType();
// byte b[]=myfile.getFileData();
// int size=myfile.getFileSize();
// String fileName=myfile.getFileName();
// System.out.println("file details are:");
// System.out.println("Name-"+fileName+"\nType of content-"+contentType+"\nSize-"+size);
// String filePath=getServlet().getServletContext().getRealPath("/")+"upload";
// filePath="c:\\upload";
// if(!fileName.equals(""))
// {
// File file=new File(filePath,fileName);
// if(!file.exists())
// {
// FileOutputStream fout=new FileOutputStream(file);
// fout.write(b);
// fout.flush();
// fout.close();
// }
// request.setAttribute("fileName",fileName);
// }
forward="success";
}catch(Exception e)
{
System.out.println("Exception in uploadAction"+e);
//e.printStackTrace();
}
return mapping.findForward(forward);
}
}
struts-config.xml
<form-beans>
<form-bean name="UploadForm" type="mypack.UploadForm"/>
<form-bean name="DownloadForm" type="mypack.DownloadForm"/>
</form-beans>
<action path="/uploader" type="org.apache.struts.actions.ForwardAction" parameter="/uploadFile.jsp"/>
<action path="/upload" type="mypack.UploadAction" name="UploadForm" validate="true" input="/uploadFile.jsp" scope="request">
<forward name="success" path="/download.jsp" />
<forward name="failure" path="/failure.jsp" />
</action>
<action path="/download" type="mypack.DownloadAction" input="/download.jsp" name="DownloadForm" scope="request" validate="true">
<forward name="success" path="/success.jsp" />
</action>
finally jsps::::
<%--
Document : uploadFile
Created on : Sep 10, 2010, 7:53:42 PM
Author : ANUJ ANEJA
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@taglib prefix="bean" uri="/WEB-INF/struts-bean.tld" %>
<%@taglib prefix="html" uri="/WEB-INF/struts-html.tld" %>
<html>
<head>
<script>
var fCount = 1;
function addElement() {
fCount++;
var fObject = document.getElementById('fileSection');
var text = 'File:';
var tag='<input type="file" name="theFile[' + fCount + ']" value="">';
var brk='<br>'
var o1 = document.createTextNode(text);
var o2 = document.createElement(tag);
var o3 = document.createElement(brk);
fObject.appendChild(o3);
fObject.appendChild(o1);
fObject.appendChild(o2);
fObject.appendChild(o3);
alert("fCount" + fCount);
}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<html:form action="/upload.do" method="post" enctype="multipart/form-data">
<div id="fileSection">
Select file to upload <html:file property="theFile[0]"/><br>
</div>
<html:submit>
<bean:message key="message.upload" />
</html:submit>
<html:button property="bt" onclick="addElement()">Upload More files</html:button>
</html:form>
</body>
</html>
<%--
Document : download
Created on : Sep 10, 2010, 11:55:32 PM
Author : ANUJ ANEJA
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="html" uri="/WEB-INF/struts-html.tld" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%
String fileName = (String) request.getAttribute("fileName[0]");
System.out.println("fname is::::" + fileName);
%>
<a href="upload/<%=fileName%>" >click to download</a>
<br>
<html:form action="/download.do">
<html:hidden property="fileName" value="<%=fileName%>"/>
<html:submit >Another mirror</html:submit>
</html:form>
</body>
</html>
Saturday, September 11, 2010
File uploading and downloading in struts
Here i have written a tutorial for downloading and uploading the file to and from server to any directory on server.
This contstruts.
1)ActionForms
2)Action Classes
3)struts-config.xml
4)jsp
//UploadForm.java//
package mypack;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
/**
*
* @author ANUJ ANEJA
*/
public class UploadForm extends ActionForm {
private FormFile theFile;
public UploadForm() {
System.out.println("uploadForm constructor");
}
public FormFile getTheFile()
{
return this.theFile;
}
public void setTheFile(FormFile theFile)
{
System.out.println("setter");
this.theFile=theFile;
}
public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
return super.validate(mapping, request);
}
}
//downloadForm.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mypack;
import org.apache.struts.action.ActionForm;
/**
*
* @author ANUJ ANEJAe
*/
public class DownloadForm extends ActionForm{
private String fileName;
public DownloadForm() {
System.out.println("DownloadForm constructor");
}
public String getFileName()
{
return this.fileName;
}
public void setFileName(String fileName)
{
System.out.println("setter in download called");
this.fileName=fileName;
}
}
Action Classes.
UploadAction.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mypack;
import java.io.File;
import java.io.FileOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
/**
*
* @author ANUJ ANEJA
*/
public class UploadAction extends Action{
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
String forward="failure";
try{
UploadForm myform=(UploadForm)form;
System.out.println("Pass>>>>>>>>>"+myform);
FormFile myfile=myform.getTheFile();
System.out.println("Pass1111>>>>>>>>>"+myfile);
String contentType=myfile.getContentType();
byte b[]=myfile.getFileData();
int size=myfile.getFileSize();
String fileName=myfile.getFileName();
System.out.println("file details are:");
System.out.println("Name-"+fileName+"\nType of content-"+contentType+"\nSize-"+size);
String filePath=getServlet().getServletContext().getRealPath("/")+"upload";
filePath="c:\\upload";
if(!fileName.equals(""))
{
File file=new File(filePath,fileName);
if(!file.exists())
{
FileOutputStream fout=new FileOutputStream(file);
fout.write(b);
fout.flush();
fout.close();
}
request.setAttribute("fileName",fileName);
}
forward="success";
}catch(Exception e)
{
System.out.println("Exception in uploadAction"+e);
//e.printStackTrace();
}
return mapping.findForward(forward);
}
}
struts-config.xml
<form-beans>
<form-bean name="UploadForm" type="mypack.UploadForm"/>
<form-bean name="DownloadForm" type="mypack.DownloadForm"/>
</form-beans>
<action path="/uploader" type="org.apache.struts.actions.ForwardAction" parameter="/uploadFile.jsp"/>
<action path="/upload" type="mypack.UploadAction" name="UploadForm" validate="true" input="/uploadFile.jsp" scope="request">
<forward name="success" path="/download.jsp" />
<forward name="failure" path="/failure.jsp" />
</action>
<action path="/download" type="mypack.DownloadAction" input="/download.jsp" name="DownloadForm" scope="request" validate="true">
<forward name="success" path="/success.jsp" />
</action>
JSPs
uploadFile.jsp
<%--
Document : uploadFile
Created on : Sep 10, 2010, 7:53:42 PM
Author : ANUJ ANEJA
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@taglib prefix="bean" uri="/WEB-INF/struts-bean.tld" %>
<%@taglib prefix="html" uri="/WEB-INF/struts-html.tld" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<html:form action="/upload.do" method="post" enctype="multipart/form-data">
Select file to upload <html:file property="theFile"/><br>
<html:submit>
<bean:message key="message.upload" />
</html:submit>
</html:form>
</body>
</html>
download.jsp
<%--
Document : download
Created on : Sep 10, 2010, 11:55:32 PM
Author : ANUJ ANEJA
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="html" uri="/WEB-INF/struts-html.tld" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%
String fileName = (String) request.getAttribute("fileName");
System.out.println("fname is::::" + fileName);
%>
<a href="upload/<%=fileName%>" >click to download</a>
<br>
<html:form action="/download.do">
<html:hidden property="fileName" value="<%=fileName%>"/>
<html:submit >Another mirror</html:submit>
</html:form>
</body>
</html>
This contstruts.
1)ActionForms
2)Action Classes
3)struts-config.xml
4)jsp
//UploadForm.java//
package mypack;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
/**
*
* @author ANUJ ANEJA
*/
public class UploadForm extends ActionForm {
private FormFile theFile;
public UploadForm() {
System.out.println("uploadForm constructor");
}
public FormFile getTheFile()
{
return this.theFile;
}
public void setTheFile(FormFile theFile)
{
System.out.println("setter");
this.theFile=theFile;
}
public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
return super.validate(mapping, request);
}
}
//downloadForm.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mypack;
import org.apache.struts.action.ActionForm;
/**
*
* @author ANUJ ANEJAe
*/
public class DownloadForm extends ActionForm{
private String fileName;
public DownloadForm() {
System.out.println("DownloadForm constructor");
}
public String getFileName()
{
return this.fileName;
}
public void setFileName(String fileName)
{
System.out.println("setter in download called");
this.fileName=fileName;
}
}
Action Classes.
UploadAction.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mypack;
import java.io.File;
import java.io.FileOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
/**
*
* @author ANUJ ANEJA
*/
public class UploadAction extends Action{
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
String forward="failure";
try{
UploadForm myform=(UploadForm)form;
System.out.println("Pass>>>>>>>>>"+myform);
FormFile myfile=myform.getTheFile();
System.out.println("Pass1111>>>>>>>>>"+myfile);
String contentType=myfile.getContentType();
byte b[]=myfile.getFileData();
int size=myfile.getFileSize();
String fileName=myfile.getFileName();
System.out.println("file details are:");
System.out.println("Name-"+fileName+"\nType of content-"+contentType+"\nSize-"+size);
String filePath=getServlet().getServletContext().getRealPath("/")+"upload";
filePath="c:\\upload";
if(!fileName.equals(""))
{
File file=new File(filePath,fileName);
if(!file.exists())
{
FileOutputStream fout=new FileOutputStream(file);
fout.write(b);
fout.flush();
fout.close();
}
request.setAttribute("fileName",fileName);
}
forward="success";
}catch(Exception e)
{
System.out.println("Exception in uploadAction"+e);
//e.printStackTrace();
}
return mapping.findForward(forward);
}
}
struts-config.xml
<form-beans>
<form-bean name="UploadForm" type="mypack.UploadForm"/>
<form-bean name="DownloadForm" type="mypack.DownloadForm"/>
</form-beans>
<action path="/uploader" type="org.apache.struts.actions.ForwardAction" parameter="/uploadFile.jsp"/>
<action path="/upload" type="mypack.UploadAction" name="UploadForm" validate="true" input="/uploadFile.jsp" scope="request">
<forward name="success" path="/download.jsp" />
<forward name="failure" path="/failure.jsp" />
</action>
<action path="/download" type="mypack.DownloadAction" input="/download.jsp" name="DownloadForm" scope="request" validate="true">
<forward name="success" path="/success.jsp" />
</action>
JSPs
uploadFile.jsp
<%--
Document : uploadFile
Created on : Sep 10, 2010, 7:53:42 PM
Author : ANUJ ANEJA
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@taglib prefix="bean" uri="/WEB-INF/struts-bean.tld" %>
<%@taglib prefix="html" uri="/WEB-INF/struts-html.tld" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<html:form action="/upload.do" method="post" enctype="multipart/form-data">
Select file to upload <html:file property="theFile"/><br>
<html:submit>
<bean:message key="message.upload" />
</html:submit>
</html:form>
</body>
</html>
download.jsp
<%--
Document : download
Created on : Sep 10, 2010, 11:55:32 PM
Author : ANUJ ANEJA
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="html" uri="/WEB-INF/struts-html.tld" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%
String fileName = (String) request.getAttribute("fileName");
System.out.println("fname is::::" + fileName);
%>
<a href="upload/<%=fileName%>" >click to download</a>
<br>
<html:form action="/download.do">
<html:hidden property="fileName" value="<%=fileName%>"/>
<html:submit >Another mirror</html:submit>
</html:form>
</body>
</html>
Subscribe to:
Posts (Atom)