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jsp\struts1.2\struts2 中文件上传

JSPStrutsServletJavaApache 
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刚刚做了三个文件上传的Demo
a.在jsp中简单利用Commons-fileupload组件实现
b.在struts1.2中实现
c.在sturts2中实现
现在把Code与大家分享一下..
注:此为三个简单Demo,仅供练习用,并没有做太多上传限制
如有兴趣可以自行查看相关文档说明

一.在JSP环境中利用Commons-fileupload组件实现文件上传
   1.页面upload.jsp清单如下:

Java代码 复制代码 收藏代码
  1. <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>   
  2.   
  3. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">   
  4. <html>   
  5.   <head>   
  6.     <title>The FileUpload Demo</title>   
  7.   </head>   
  8.      
  9.   <body>   
  10.     <form action="UploadFile" method="post" enctype="multipart/form-data">   
  11.         <p><input type="text" name="fileinfo" value="">文件介绍</p>   
  12.         <p><input type="file" name="myfile" value="浏览文件"></p>   
  13.         <p><input type="submit" value="上 传"></p>   
  14.     </form>   
  15.   </body>   
  16. </html>  
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>The FileUpload Demo</title>
  </head>
  
  <body>
    <form action="UploadFile" method="post" enctype="multipart/form-data">
    	<p><input type="text" name="fileinfo" value="">文件介绍</p>
    	<p><input type="file" name="myfile" value="浏览文件"></p>
    	<p><input type="submit" value="上 传"></p>
    </form>
  </body>
</html>


注意:在上传表单中,既有普通文本域也有文件上传域

2.FileUplaodServlet.java清单如下:

Java代码 复制代码 收藏代码
  1. package org.chris.fileupload;   
  2.   
  3. import java.io.File;   
  4. import java.io.IOException;   
  5. import java.util.Iterator;   
  6. import java.util.List;   
  7.   
  8. import javax.servlet.ServletException;   
  9. import javax.servlet.http.*;   
  10.   
  11. import org.apache.commons.fileupload.FileItem;   
  12. import org.apache.commons.fileupload.FileItemFactory;   
  13. import org.apache.commons.fileupload.disk.DiskFileItemFactory;   
  14. import org.apache.commons.fileupload.servlet.ServletFileUpload;   
  15.   
  16. public class FileUplaodServlet extends HttpServlet {   
  17.   
  18.     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {   
  19.         doPost(request, response);   
  20.     }   
  21.   
  22.     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {   
  23.            
  24.         request.setCharacterEncoding("UTF-8");   
  25.            
  26.         //文件的上传部分   
  27.         boolean isMultipart = ServletFileUpload.isMultipartContent(request);   
  28.            
  29.         if(isMultipart)   
  30.         {   
  31.             try {   
  32.                 FileItemFactory factory = new DiskFileItemFactory();   
  33.                 ServletFileUpload fileload = new ServletFileUpload(factory);   
  34.                    
  35. //               设置最大文件尺寸，这里是4MB       
  36.                 fileload.setSizeMax(4194304);   
  37.                 List<FileItem> files = fileload.parseRequest(request);   
  38.                 Iterator<FileItem> iterator = files.iterator();      
  39.                 while(iterator.hasNext())   
  40.                 {   
  41.                     FileItem item = iterator.next();   
  42.                     if(item.isFormField())   
  43.                     {   
  44.                         String name = item.getFieldName();   
  45.                         String value = item.getString();   
  46.                         System.out.println("表单域名为: " + name + "值为: " + value);   
  47.                     }else  
  48.                     {   
  49.                         //获得获得文件名，此文件名包括路径   
  50.                         String filename = item.getName();   
  51.                         if(filename != null)   
  52.                         {   
  53.                             File file = new File(filename);   
  54.                             //如果此文件存在   
  55.                             if(file.exists()){   
  56.                                 File filetoserver = new File("d:\\upload\\",file.getName());   
  57.                                 item.write(filetoserver);   
  58.                                 System.out.println("文件 " + filetoserver.getName() + " 上传成功!!");   
  59.                             }   
  60.                         }   
  61.                     }   
  62.                 }   
  63.             } catch (Exception e) {   
  64.                 System.out.println(e.getStackTrace());   
  65.             }   
  66.         }   
  67.     }   
  68. }  
package org.chris.fileupload;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.*;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

public class FileUplaodServlet extends HttpServlet {

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		request.setCharacterEncoding("UTF-8");
		
		//文件的上传部分
		boolean isMultipart = ServletFileUpload.isMultipartContent(request);
		
		if(isMultipart)
		{
			try {
				FileItemFactory factory = new DiskFileItemFactory();
				ServletFileUpload fileload = new ServletFileUpload(factory);
				
//				 设置最大文件尺寸，这里是4MB    
				fileload.setSizeMax(4194304);
				List<FileItem> files = fileload.parseRequest(request);
				Iterator<FileItem> iterator = files.iterator();	
				while(iterator.hasNext())
				{
					FileItem item = iterator.next();
					if(item.isFormField())
					{
						String name = item.getFieldName();
						String value = item.getString();
						System.out.println("表单域名为: " + name + "值为: " + value);
					}else
					{
						//获得获得文件名，此文件名包括路径
						String filename = item.getName();
						if(filename != null)
						{
							File file = new File(filename);
							//如果此文件存在
							if(file.exists()){
								File filetoserver = new File("d:\\upload\\",file.getName());
								item.write(filetoserver);
								System.out.println("文件 " + filetoserver.getName() + " 上传成功!!");
							}
						}
					}
				}
			} catch (Exception e) {
				System.out.println(e.getStackTrace());
			}
		}
	}
}


3.web.xml清单如下:

Java代码 复制代码 收藏代码
  1. <?xml version="1.0" encoding="UTF-8"?>   
  2. <web-app version="2.4"    
  3.     xmlns="http://java.sun.com/xml/ns/j2ee"    
  4.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    
  5.     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee    
  6.     http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">   
  7.        
  8.     <servlet>   
  9.         <servlet-name>UploadFileServlet</servlet-name>   
  10.         <servlet-class>   
  11.             org.chris.fileupload.FileUplaodServlet   
  12.         </servlet-class>   
  13.     </servlet>   
  14.   
  15.     <servlet-mapping>   
  16.         <servlet-name>UploadFileServlet</servlet-name>   
  17.         <url-pattern>/UploadFile</url-pattern>   
  18.     </servlet-mapping>   
  19.        
  20.     <welcome-file-list>   
  21.         <welcome-file>/Index.jsp</welcome-file>   
  22.     </welcome-file-list>   
  23.        
  24. </web-app>  
<?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">
	
	<servlet>
		<servlet-name>UploadFileServlet</servlet-name>
		<servlet-class>
			org.chris.fileupload.FileUplaodServlet
		</servlet-class>
	</servlet>

	<servlet-mapping>
		<servlet-name>UploadFileServlet</servlet-name>
		<url-pattern>/UploadFile</url-pattern>
	</servlet-mapping>
	
	<welcome-file-list>
		<welcome-file>/Index.jsp</welcome-file>
	</welcome-file-list>
	
</web-app>



二.在strut1.2中实现
1.上传页面file.jsp 清单如下:

Java代码 复制代码 收藏代码
  1. <%@ page language="java" pageEncoding="ISO-8859-1"%>   
  2. <%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>    
  3. <%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>   
  4.     
  5. <html>    
  6.     <head>   
  7.         <title>JSP for FileForm form</title>   
  8.     </head>   
  9.     <body>   
  10.         <html:form action="/file" enctype="multipart/form-data">   
  11.         <html:file property="file1"></html:file>   
  12.             <html:submit/><html:cancel/>   
  13.         </html:form>   
  14.     </body>   
  15. </html>  
<%@ page language="java" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%> 
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
 
<html> 
	<head>
		<title>JSP for FileForm form</title>
	</head>
	<body>
		<html:form action="/file" enctype="multipart/form-data">
		<html:file property="file1"></html:file>
			<html:submit/><html:cancel/>
		</html:form>
	</body>
</html>



2.FileAtion.java的清单如下:

Java代码 复制代码 收藏代码
  1. /*  
  2.  * Generated by MyEclipse Struts  
  3.  * Template path: templates/java/JavaClass.vtl  
  4.  */  
  5. package action;   
  6.   
  7. import java.io.*;   
  8.   
  9. import javax.servlet.http.HttpServletRequest;   
  10. import javax.servlet.http.HttpServletResponse;   
  11. import org.apache.struts.action.Action;   
  12. import org.apache.struts.action.ActionForm;   
  13. import org.apache.struts.action.ActionForward;   
  14. import org.apache.struts.action.ActionMapping;   
  15. import org.apache.struts.upload.FormFile;   
  16.   
  17. import form.FileForm;   
  18.   
  19. /**   
  20.  * @author Chris  
  21.  * Creation date: 6-27-2008  
  22.  *   
  23.  * XDoclet definition:  
  24.  * @struts.action path="/file" name="fileForm" input="/file.jsp"  
  25.  */  
  26. public class FileAction extends Action {   
  27.     /*  
  28.      * Generated Methods  
  29.      */  
  30.   
  31.     /**   
  32.      * Method execute  
  33.      * @param mapping  
  34.      * @param form  
  35.      * @param request  
  36.      * @param response  
  37.      * @return ActionForward  
  38.      */  
  39.     public ActionForward execute(ActionMapping mapping, ActionForm form,   
  40.             HttpServletRequest request, HttpServletResponse response) {   
  41.         FileForm fileForm = (FileForm) form;   
  42.         FormFile file1=fileForm.getFile1();   
  43.         if(file1!=null){   
  44.             //上传路径   
  45.             String dir=request.getSession(true).getServletContext().getRealPath("/upload");   
  46.             OutputStream fos=null;   
  47.             try {   
  48.                 fos=new FileOutputStream(dir+"/"+file1.getFileName());   
  49.                 fos.write(file1.getFileData(),0,file1.getFileSize());   
  50.                 fos.flush();   
  51.             } catch (Exception e) {   
  52.                 // TODO Auto-generated catch block   
  53.                 e.printStackTrace();   
  54.             }finally{   
  55.                 try{   
  56.                 fos.close();   
  57.                 }catch(Exception e){}   
  58.             }   
  59.         }   
  60.         //页面跳转   
  61.         return mapping.findForward("success");   
  62.     }   
  63. }  
/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package action;

import java.io.*;

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;

import form.FileForm;

/** 
 * @author Chris
 * Creation date: 6-27-2008
 * 
 * XDoclet definition:
 * @struts.action path="/file" name="fileForm" input="/file.jsp"
 */
public class FileAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		FileForm fileForm = (FileForm) form;
		FormFile file1=fileForm.getFile1();
		if(file1!=null){
			//上传路径
			String dir=request.getSession(true).getServletContext().getRealPath("/upload");
			OutputStream fos=null;
			try {
				fos=new FileOutputStream(dir+"/"+file1.getFileName());
				fos.write(file1.getFileData(),0,file1.getFileSize());
				fos.flush();
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}finally{
				try{
				fos.close();
				}catch(Exception e){}
			}
		}
		//页面跳转
		return mapping.findForward("success");
	}
}



3.FileForm.java的清单如下:

Java代码 复制代码 收藏代码
  1. package form;   
  2.   
  3. import javax.servlet.http.HttpServletRequest;   
  4. import org.apache.struts.action.ActionErrors;   
  5. import org.apache.struts.action.ActionForm;   
  6. import org.apache.struts.action.ActionMapping;   
  7. import org.apache.struts.upload.FormFile;   
  8.   
  9. /**   
  10.  * @author Chris  
  11.  * Creation date: 6-27-2008  
  12.  *   
  13.  * XDoclet definition:  
  14.  * @struts.form name="fileForm"  
  15.  */  
  16. public class FileForm extends ActionForm {   
  17.     /*  
  18.      * Generated Methods  
  19.      */  
  20.     private FormFile file1;   
  21.     /**   
  22.      * Method validate  
  23.      * @param mapping  
  24.      * @param request  
  25.      * @return ActionErrors  
  26.      */  
  27.     public ActionErrors validate(ActionMapping mapping,   
  28.             HttpServletRequest request) {   
  29.         // TODO Auto-generated method stub   
  30.         return null;   
  31.     }   
  32.   
  33.     /**   
  34.      * Method reset  
  35.      * @param mapping  
  36.      * @param request  
  37.      */  
  38.     public void reset(ActionMapping mapping, HttpServletRequest request) {   
  39.         // TODO Auto-generated method stub   
  40.     }   
  41.   
  42.     public FormFile getFile1() {   
  43.         return file1;   
  44.     }   
  45.   
  46.     public void setFile1(FormFile file1) {   
  47.         this.file1 = file1;   
  48.     }   
  49. }  
package form;

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 Chris
 * Creation date: 6-27-2008
 * 
 * XDoclet definition:
 * @struts.form name="fileForm"
 */
public class FileForm extends ActionForm {
	/*
	 * Generated Methods
	 */
	private FormFile file1;
	/** 
	 * Method validate
	 * @param mapping
	 * @param request
	 * @return ActionErrors
	 */
	public ActionErrors validate(ActionMapping mapping,
			HttpServletRequest request) {
		// TODO Auto-generated method stub
		return null;
	}

	/** 
	 * Method reset
	 * @param mapping
	 * @param request
	 */
	public void reset(ActionMapping mapping, HttpServletRequest request) {
		// TODO Auto-generated method stub
	}

	public FormFile getFile1() {
		return file1;
	}

	public void setFile1(FormFile file1) {
		this.file1 = file1;
	}
}


4.struts-config.xml的清单如下:

Java代码 复制代码 收藏代码
  1. <?xml version="1.0" encoding="UTF-8"?>   
  2. <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">   
  3.   
  4. <struts-config>   
  5.   <data-sources />   
  6.   <form-beans >   
  7.     <form-bean name="fileForm" type="form.FileForm" />   
  8.   
  9.   </form-beans>   
  10.   
  11.   <global-exceptions />   
  12.   <global-forwards />   
  13.   <action-mappings >   
  14.     <action   
  15.       attribute="fileForm"  
  16.       input="/file.jsp"  
  17.       name="fileForm"  
  18.       path="/file"  
  19.       type="action.FileAction"  
  20.       validate="false">   
  21.        <forward name="success" path="/file.jsp"></forward>   
  22.       </action>   
  23.   
  24.   </action-mappings>   
  25.   
  26.   <message-resources parameter="ApplicationResources" />   
  27. </struts-config>  
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>
  <data-sources />
  <form-beans >
    <form-bean name="fileForm" type="form.FileForm" />

  </form-beans>

  <global-exceptions />
  <global-forwards />
  <action-mappings >
    <action
      attribute="fileForm"
      input="/file.jsp"
      name="fileForm"
      path="/file"
      type="action.FileAction"
      validate="false">
       <forward name="success" path="/file.jsp"></forward>
      </action>

  </action-mappings>

  <message-resources parameter="ApplicationResources" />
</struts-config>


5.web.xml代码清单如下:

Java代码 复制代码 收藏代码
  1. <?xml version="1.0" encoding="UTF-8"?>   
  2. <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">   
  3.   <servlet>   
  4.     <servlet-name>action</servlet-name>   
  5.     <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>   
  6.     <init-param>   
  7.       <param-name>config</param-name>   
  8.       <param-value>/WEB-INF/struts-config.xml</param-value>   
  9.     </init-param>   
  10.     <init-param>   
  11.       <param-name>debug</param-name>   
  12.       <param-value>3</param-value>   
  13.     </init-param>   
  14.     <init-param>   
  15.       <param-name>detail</param-name>   
  16.       <param-value>3</param-value>   
  17.     </init-param>   
  18.     <load-on-startup>0</load-on-startup>   
  19.   </servlet>   
  20.   <servlet-mapping>   
  21.     <servlet-name>action</servlet-name>   
  22.     <url-pattern>*.do</url-pattern>   
  23.   </servlet-mapping>   
  24. </web-app>  
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
      <param-name>debug</param-name>
      <param-value>3</param-value>
    </init-param>
    <init-param>
      <param-name>detail</param-name>
      <param-value>3</param-value>
    </init-param>
    <load-on-startup>0</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
</web-app>



三.在struts2中实现(以图片上传为例)
1.FileUpload.jsp代码清单如下:

Java代码 复制代码 收藏代码
  1. <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>   
  2. <%@ taglib prefix="s" uri="/struts-tags" %>   
  3. <html>   
  4.   <head>   
  5.     <title>The FileUplaodDemo In Struts2</title>   
  6.   </head>   
  7.      
  8.   <body>   
  9.     <s:form action="fileUpload.action" method="POST" enctype="multipart/form-data">   
  10.         <s:file name="myFile" label="MyFile" ></s:file>   
  11.         <s:textfield name="caption" label="Caption"></s:textfield>   
  12.         <s:submit label="提交"></s:submit>   
  13.     </s:form>   
  14.   </body>   
  15. </html>  
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
  <head>
  	<title>The FileUplaodDemo In Struts2</title>
  </head>
  
  <body>
    <s:form action="fileUpload.action" method="POST" enctype="multipart/form-data">
    	<s:file name="myFile" label="MyFile" ></s:file>
    	<s:textfield name="caption" label="Caption"></s:textfield>
    	<s:submit label="提交"></s:submit>
    </s:form>
  </body>
</html>



2.ShowUpload.jsp的功能清单如下:

Java代码 复制代码 收藏代码
  1. <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>   
  2. <%@ taglib prefix="s" uri="/struts-tags" %>   
  3. <html>   
  4.   <head>   
  5.     <title>ShowUpload</title>   
  6.   </head>   
  7.      
  8.   <body>   
  9.     <div style ="padding: 3px; border: solid 1px #cccccc; text-align: center" >    
  10.         <img src ='UploadImages/<s:property value ="imageFileName"/> '/>   
  11.         <br />    
  12.         <s:property value ="caption"/>    
  13.     </div >    
  14.   </body>   
  15. </html>  
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
  <head>
    <title>ShowUpload</title>
  </head>
  
  <body>
    <div style ="padding: 3px; border: solid 1px #cccccc; text-align: center" > 
        <img src ='UploadImages/<s:property value ="imageFileName"/> '/>
        <br /> 
        <s:property value ="caption"/> 
    </div > 
  </body>
</html>



3.FileUploadAction.java的代码清单如下 :

Java代码 复制代码 收藏代码
  1. package com.chris;   
  2.   
  3. import java.io.*;   
  4. import java.util.Date;   
  5.   
  6. import org.apache.struts2.ServletActionContext;   
  7.   
  8.   
  9. import com.opensymphony.xwork2.ActionSupport;   
  10.   
  11. public class FileUploadAction extends ActionSupport{   
  12.   
  13.      private static final long serialVersionUID = 572146812454l ;   
  14.      private static final int BUFFER_SIZE = 16 * 1024 ;   
  15.        
  16.      //注意，文件上传时<s:file/>同时与myFile，myFileContentType,myFileFileName绑定   
  17.      //所以同时要提供myFileContentType,myFileFileName的set方法   
  18.         
  19.      private File myFile;   //上传文件   
  20.      private String contentType;//上传文件类型   
  21.      private String fileName;   //上传文件名   
  22.      private String imageFileName;   
  23.      private String caption;//文件说明，与页面属性绑定   
  24.        
  25.      public void setMyFileContentType(String contentType)  {   
  26.          System.out.println("contentType : " + contentType);   
  27.          this .contentType = contentType;   
  28.     }    
  29.        
  30.      public void setMyFileFileName(String fileName)  {   
  31.          System.out.println("FileName : " + fileName);   
  32.          this .fileName = fileName;   
  33.     }    
  34.            
  35.      public void setMyFile(File myFile)  {   
  36.          this .myFile = myFile;   
  37.     }    
  38.        
  39.      public String getImageFileName()  {   
  40.          return imageFileName;   
  41.     }    
  42.        
  43.      public String getCaption()  {   
  44.          return caption;   
  45.     }    
  46.     
  47.       public void setCaption(String caption)  {   
  48.          this .caption = caption;   
  49.     }    
  50.        
  51.      private static void copy(File src, File dst)  {   
  52.          try  {   
  53.             InputStream in = null ;   
  54.             OutputStream out = null ;   
  55.              try  {                   
  56.                 in = new BufferedInputStream( new FileInputStream(src), BUFFER_SIZE);   
  57.                 out = new BufferedOutputStream( new FileOutputStream(dst), BUFFER_SIZE);   
  58.                  byte [] bu
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