多文件上传————>struts2

来源：互联网发布：小米mix2全球网络制式编辑：程序博客网时间：2024/06/10 13:14

关键就是在Action中，针对的File必须写成数组形式或者说是List形式

package com.bird.action;
import java.io.File;
import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
public class FileUpload {
       private File[] image;//获取上传文件
       private String[] imageFileName;//获取上传文件名称
       private String[] imageContentType;//获取上传文件类型
       public File[] getImage() {
              return image;
       }
       public void setImage(File[] image) {
              this.image = image;
       }
       public String[] getImageFileName() {
              return imageFileName;
       }
       public void setImageFileName(String[] imageFileName) {
              this.imageFileName = imageFileName;
       }
       public String[] getImageContentType() {
              return imageContentType;
       }
       public void setImageContentType(String[] imageContentType) {
              this.imageContentType = imageContentType;
       }
       public String execute() throws Exception{
              String path = ServletActionContext.getServletContext().getRealPath("/images");
              System.out.println(path);

              if(image != null){
                     File savedir = new File(path);
                     if(!savedir.exists()) savedir.mkdirs();
                     for(int i = 0; i < image.length; i++){
                            File saveFile = new File(savedir,imageFileName[i]);
                            FileUtils.copyFile(image[i], saveFile);
                     }
              }
              return "success";
       }
}

再看一下表单的实现，
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <title>My JSP 'fileUpload.jsp' starting page</title>
</head>
<body>
    <form action="${pageContext.request.contextPath }/test/fileupload.action" enctype="multipart/form-data" method="post">
        选择文件1:<input type="file" name="image">
        选择文件2:<input type="file" name="image">
        选择文件3:<input type="file" name="image">
        <input type="submit" value="上传">
    </form>
</body>
</html>

需要几个文件弄一个就行了，其实很简单。