浅谈Struts2多文件上传思路以及实现

 upload.jsp
< %@ page contentType="text/html;charset=gb2312" %>
< A href="mailto:%@taglib">%@taglib< /A> prefix="s" uri="/struts-tags"%>
< HTML xhtml? 1999 www.w3.org http: xmlns="< A href=">http://www.w3.org/1999/xhtml< /A>">
< HEAD>




< ?xml:namespace prefix = s />< s:fielderror>< /s:fielderror>


< FORM encType=multipart/form-data method=post action=upload.action>
文件标题< INPUT name=title>

        第一个上传文件:< INPUT type=file name=upload>

           第二个上传文件:< INPUT type=file name=upload>

           第三个上传文件:< I name="upload" type="file" NPUT>

< INPUT value=上传 type=submit>
< /FORM>

package com.wing.study.upload;

import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.ServletActionContext;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileInputStream;
public class UploadAction extends ActionSupport
{
   private String title;
   private File[] upload;
   private String[] uploadContentType;
   private String[] uploadFileName;
   private String savePath;
   public void setSavePath(String value)
   {
    this.savePath=value;
   }
   public String getSavePath()
   {
    return ServletActionContext.getRequest().getRealPath(savePath);
   }
   public void setUpload(File[] upload)
   {
    this.upload=upload;
   }
   public File[] getUpload()
   {
    return upload;
   }
   public void setTitle(String title)
   {
    this.title=title;
   }
   public String getTitle()
   {
    return title;
   }
   public void setUploadContentType(String[] uploadContentType)
   {
    this.uploadContentType=uploadContentType;
   }
   public String[] getUploadContentType()
   {
    return (this.uploadContentType);
   }
   public void setUploadFileName(String[] uploadFileName)
   {
    this.uploadFileName=uploadFileName;
   }
   public String[] getUploadFileName()
   {
    return (this.uploadFileName);
   }
   public String execute() throws Exception
{
    for(int i=0;i    { 
   FileOutputStream fos = new FileOutputStream(getSavePath() 
+ "\\" + getUploadFileName()[i]);
   FileInputStream fis = new FileInputStream(getUpload()[i]);
   byte[] buffer = new byte[1024];
   int len = 0;
   while ((len = fis.read(buffer)) > 0)
   {
    fos.write(buffer , 0 , len);
   }
    }
       return SUCCESS;
}
}

< ?xml version="1.0" encoding="UTF-8"?>

    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "< A href="http://struts.apache.org/dtds/struts-2.0.dtd">
http://struts.apache.org/dtds/struts-2.0.dtd">
< STRUTS>
    < CONSTANT value="globalMessages" name="struts.custom.i18n.resources" />
< CONSTANT value="GBK" name="struts.i18n.encoding" />
< PACKAGE name="com" extends="struts-default">
   < ACTION class=com.wing.study.upload.UploadAction name="upload">
   < INTERCEPTOR-REF name="fileUpload">
    < PARAM name="allowedTypes">image/bmp,image/jpeg,image/gif,image/png< /PARAM>
    < PARAM name="maximumSize">202400< /PARAM>
    < /INTERCEPTOR-REF>
    < INTERCEPTOR-REF name="defaultStack" />
            < PARAM name="savePath">/upload< /PARAM> 
            < RESULT name="input">/upload.jsp< /RESULT>        
    < RESULT>/succ.jsp< /RESULT> 
   < /ACTION>  
< /PACKAGE>
< /STRUTS>

< %@ page language="java" contentType="text/html; charset=GBK"%>
<< A href="mailto:%@taglib">%@taglib< /A> prefix="s" uri="/struts-tags"%>
< HTML>
    
        
    
    
        上传成功!

   文件标题:< ?xml:namespace prefix = s />< s:property value=" + title">< /s:property>

                    第一个文件为："/>

                     第二个文件为："/>

                     第三个文件为："/>