2008-02-28

《struts2权威指南》学习笔记之struts2多文件上传--使用数组方式

上传页面：

 

<%@ page language="java" contentType="text/html; charset=GBK"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<%@ page isELIgnored="false" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>


<head>

<meta http-equiv="Content-Type" content="text/html; charset=GBK" />
<title></title>
</head>
<body>
<s:fielderror/>
<form action="upload.action" method="post" enctype="multipart/form-data">
      <input type="text" name="title" /><br>
      <input type="file" name="upload" /><br>
      <input type="file" name="upload" /><br>
      <input type="file" name="upload" /><br>
    <input value="upload" type="submit" />
</form>
</body>
</html>

 上传Action

 

package lee;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionContext;

import org.apache.struts2.ServletActionContext;
import java.io.*;

import com.opensymphony.xwork2.ActionSupport;

/**
 * @author  yeeku.H.lee kongyeeku@163.com
 * @version  1.0
 * <br>Copyright (C), 2005-2008, yeeku.H.Lee
 * <br>This program is protected by copyright laws.
 * <br>Program Name:
 * <br>Date: 
 */

public class UploadAction extends ActionSupport
{
    private String title;
    private File[] upload;
    private String[] uploadContentType;
    private String[] uploadFileName;


    //接受依赖注入的属性
    private String savePath;
    //接受依赖注入的方法
    public void setSavePath(String value)
    {
        this.savePath = value;
    }

    private String getSavePath() throws Exception 
    {
        return ServletActionContext.getRequest().getRealPath(savePath);
    }
    
    public void setTitle(String title) {
        this.title = title; 
    }

    
    public File[] getUpload() {
        return upload;
    }

    public void setUpload(File[] upload) {
        this.upload = upload;
    }

    public String[] getUploadContentType() {
        return uploadContentType;
    }

    public void setUploadContentType(String[] uploadContentType) {
        this.uploadContentType = uploadContentType;
    }

    public String[] getUploadFileName() {
        return uploadFileName;
    }

    public void setUploadFileName(String[] uploadFileName) {
        this.uploadFileName = uploadFileName;
    }

    public String getTitle() {
        return title;
    }

    @Override
    public String execute() throws Exception
    {
        System.out.println("开始上传单个文件-----------------------");
        System.out.println(getSavePath());
        System.out.println("==========" + getUploadFileName());
        System.out.println("==========" + getUploadContentType());
        System.out.println("==========" + getUpload());
        
        File[] files=this.getUpload();
        for(int i=0;i<files.length;i++){
            //以服务器的文件保存地址和原文件名建立上传文件输出流
            FileOutputStream fos = new FileOutputStream(getSavePath() + "\" + getUploadFileName()[i]);
            FileInputStream fis = new FileInputStream(files[i]);
            byte[] buffer = new byte[1024];
            int len = 0;
            while ((len = fis.read(buffer)) > 0)
            {
                fos.write(buffer , 0 , len);
            }
        }
        return SUCCESS;
    }
    



}

 

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.custom.i18n.resources" value="globalMessages"/>
    <constant name="struts.i18n.encoding" value="GBK"/>

    <package name="lee" extends="struts-default">
    
        <action name="upload" class="lee.UploadAction">
          <interceptor-ref name="fileUpload"> 
                <param name="allowedTypes">image/bmp,image/png,image/gif,image/jpeg,image/jpg</param> 
                <param name="maximumSize">2000</param> 
            </interceptor-ref> 
            <interceptor-ref name="defaultStack"/> 
            <param name="savePath">/upload</param>
            <result>/succ.jsp</result>    
            <result name="input">/upload.jsp</result>    
        </action>        
    </package>
</struts>    

 

结果显示页面：

 

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