struts2框架编写文件上传的步骤

最新推荐文章于 2021-05-31 23:17:54 发布

maty_wang

最新推荐文章于 2021-05-31 23:17:54 发布

阅读量307

点赞数

分类专栏： J2EE 文章标签： Struts2之文件上传

本文链接：https://blog.youkuaiyun.com/maty_wang/article/details/79470458

版权

J2EE 专栏收录该内容

19 篇文章

订阅专栏

1.必须在form表单中添加enctype="multipart/form-data"

2.必须在action中设定三个变量upload(这个变量要对应input标签中的file类型中的name属性值)、uploadContentType、uploadFileName，并且编写这三个变量的setter方法

3.在action执行的方法中使用FileUtils.copyFile(upload, new File("d:\\"+uploadFileName));方法将上传的文件保存到特定目录中

JSP代码：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!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>
	<form action="${pageContext.request.contextPath typ}/upload.action" method="post" enctype="multipart/form-data">
		<input type="file" name="upload" /><br/>
		<input type="submit" value="上传"/>
	</form>
</body>
</html>

Action代码：

package com.maty.action;

import java.io.File;

import org.apache.commons.io.FileUtils;

import com.opensymphony.xwork2.ActionSupport;

public class FileUploadAction extends ActionSupport
{
	private File upload;
	private String uploadContentType;
	private String uploadFileName;


	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;
	}

	@Override
	public String execute() throws Exception
	{
		System.out.println("文件上传执行了...");
		FileUtils.copyFile(upload, new File("d:\\"+uploadFileName));
		return NONE; //文件上传不需要返回结果
	}
}