Struts2实现文件上传-优快云博客

本文详细介绍使用Struts2框架实现文件上传的具体步骤，包括所需依赖、页面展示、控制器处理及配置文件设置等内容。

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**1.原始的servlet文件上传下载(见上一篇)
2.Struts2框架的文件上传
3.spring-Mvc框架的文件上传(见下一篇)**

Struts2实现文件上传

Struts文件上传依赖两个jar包，需要导入项目中。Common-upload.jar,common-io.jar
upload.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@taglib prefix="s" uri="/struts-tags"%>
<!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>
<script type="text/javascript" src="js/jquery-2.0.3.min.js"></script>

<hr>
<s:form action="upload/upload" method="post" enctype="multipart/form-data">
上传文件<input type="file" name="upload">
<input type="submit">
</s:form>
</body>
</html>

uploadAction

package king.zyt.controller;

import java.io.File;
import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

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

public class UploadAction {
    private String uploadFileName;//文件名
    private File upload;//存储文件
    public String getUploadFileName() {
        return uploadFileName;
    }
    public void setUploadFileName(String uploadFileName) {
        this.uploadFileName = uploadFileName;
    }
    public File getUpload() {
        return upload;
    }
    public void setUpload(File upload) {
        this.upload = upload;
    }

    public String upload(){
        HttpServletRequest request = ServletActionContext.getRequest();
        String realPath = request.getRealPath("/upload");//上传到服务器下的upload文件夹  getRealPath获取tomcat在磁盘的路径
        try {
            //FileUtils.copyFile(upload, new File("d://a.txt"));
            FileUtils.copyFile(upload, new File(realPath+"/"+uploadFileName));//拷贝文件upload 到 后面的文件
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return "upload";
    }
}

既然是Struts2框架你就别忘了配置action
struts-upload.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>

      <package name="upload" namespace="/upload" extends="struts-default">


        <action name="upload" class="king.zyt.controller.UploadAction" method="upload">

            <result name="upload">/upload_success.jsp</result>
        </action>
    </package>  




</struts>