VereMVC 之多文件上传

最新推荐文章于 2021-03-14 18:34:52 发布

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本文介绍如何在Eclipse中创建一个动态Web项目，并实现文件上传功能。具体步骤包括：新建项目、创建JSP页面、编写Java Action处理上传逻辑及配置VereMVC.xml等。

http://www.verejava.com/?id=1699102397933

1.打开 Eclipse 新建一个 test 项目   Eclipse -> File -> New -> Dynamic Web Project 


2.在 test/WebContent  下面新建一个 fileupload.jsp 文件 

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="java.util.List" %>
<%@ page import="java.io.File" %>
<%
List<File> fileList=null;
if(request.getAttribute("fileList")!=null)
{
	fileList=(List<File>)request.getAttribute("fileList");
}
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<%
for(int i=0;fileList!=null && i<fileList.size();i++)
{
	File picture=fileList.get(i);
%>
 <img src="upload/<%=picture.getName() %>" />
<%
}
%>

 <form action="fileupload!add" method="post"  enctype="multipart/form-data" >
 	<input type="file" name="picture" />
 	<input type="file" name="picture2" />
 	
 	<input type="submit" name="submit" value="submit" />
 </form>
</body>
</html>



3.在 test/src  下面新建一个 com.test.action.FileUploadAction 类 

package com.test.action;

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

import javax.servlet.http.HttpServletRequest;

import com.vere.mvc.ServletActionContext;
import com.vere.mvc.util.CFile;
import com.vere.mvc.util.CParam;

public class FileUploadAction {
	
	public String execute()
	{
		
		return "success";
	}
	
	public String add()
	{
		HttpServletRequest request=ServletActionContext.getRequest();

		List<File> fileList=CParam.getFileList(request);
		
		for(int i=0;i<fileList.size();i++)
		{
			File picture=fileList.get(i);
			String dest=request.getRealPath("/upload")+"/"+picture.getName();
			CFile.save(picture,dest);
			
		}
		
		
		request.setAttribute("fileList", fileList);
		return execute();
	}

}



4.在 test/src/VereMVC.xml  里面配置Action 

<?xml version="1.0" encoding="UTF-8"?>
<VereMVC>
	<constant name="charset"  value="utf-8" />
	<constant name="developMode"  value="true" />
	<constant name="language"  value="en_US" />
	

    <action name="fileupload" class="com.test.action.FileUploadAction">
      <result name="success">/fileupload.jsp</result>
    </action>
</VereMVC>



5.在 浏览器地址栏输入 http://localhost/test/fileupload

http://www.verejava.com/?id=1699102397933