第十七章多文件上传

最新推荐文章于 2025-08-22 15:07:29 发布

转载最新推荐文章于 2025-08-22 15:07:29 发布 · 342 阅读

文章标签：

#file #image #string #input #exception #html

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多文件上传页面：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'employeeAdd.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">
  </head>
  
  <body>
    <form action="${pageContext.request.contextPath}/control/employee/list_execute.action" enctype="multipart/form-data" method="post">
    	文件1:<input type="file" name="image"><br/>
    	文件2:<input type="file" name="image"><br/>
    	文件3:<input type="file" name="image"><br/>
    	<input type="submit" value="上传"/>
    </form>
  </body>
</html>

action处理：

package cn.itcast.action;

import java.io.File;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;


public class HelloWorldAction {
	private File[] image;
	private String[] imageFileName; //imageFileName固定写法 FileName后缀可得到image的文件名

	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 addUI(){
		return "success";
	}

	public String execute() throws Exception{
		
		String realpath = ServletActionContext.getServletContext().getRealPath("/images");
		System.out.println(realpath);
		if(image!=null){
			File savedir = new File(realpath);
			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);
			}
			ActionContext.getContext().put("message", "上传成功");
		}
		return "success";
	}
}