Struts2多文件上传

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多文件上传和单文件上传基本一样，只是变成了数组。类不要忘了建立get set方法。上传文件jsp页面大头像上传：<input type="file" name="mypic"/><br/>
小头像上传：<input type="file" name="mypic"/><br/>，那个file那个name属性的名字要和实体类的

private String uploader;// 上传者
private File[] mypic;// 上传文件
private String[] mypicContentType;// 上传文件类型
private String[] mypicFileName;// 上传文件的文件名
// 定义服务器上传路径

Action类

package Action;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import org.apache.struts2.ServletActionContext;public class UploadAction {// 定义请求参数private String uploader;// 上传者private File[] mypic;// 上传文件private String[] mypicContentType;// 上传文件类型private String[] mypicFileName;// 上传文件的文件名// 定义服务器上传路径private String savePath; public String getUploader() {return uploader;}public void setUploader(String uploader) {this.uploader = uploader;}public File[] getMypic() {return mypic;}public void setMypic(File[] mypic) {this.mypic = mypic;}public String[] getMypicContentType() {return mypicContentType;}public void setMypicContentType(String[] mypicContentType) {this.mypicContentType = mypicContentType;}public String[] getMypicFileName() {return mypicFileName;}public void setMypicFileName(String[] mypicFileName) {this.mypicFileName = mypicFileName;}public String getSavePath() {return savePath;}public void setSavePath(String savePath) {this.savePath = savePath;}public String load() throws Exception {// 获取服务器保存路径绝对地址String adsSavePath = ServletActionContext.getServletContext().getRealPath(savePath);try {//循环处理多按个文件上传for (int i = 0; i < mypic.length; i++) {// 使用文件读写实现文件上传FileInputStream fis = new FileInputStream(mypic[i]);FileOutputStream fos = new FileOutputStream(adsSavePath+ File.separator + mypicFileName[i]);byte[] b = new byte[fis.available()];fis.read();fos.write(b);// 关闭流fis.close();fos.flush();fos.close();}} catch (Exception e) {e.printStackTrace();return "error";}return "success";}}

struts.xml

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"><struts>   <package name="default" namespace="/"  extends="struts-default">     <action name="upload" class="Action.UploadAction" method="load">      <param name="savePath">/upload</param>      <result name="success">success.jsp</result>      <result name="error">error.jsp</result>     </action>   </package></struts>

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>下载页面</title>   </head>    <body>      <form action="upload.action" method="post" enctype="multipart/form-data">      上传者：<input type="text" name="uploader"/><br/>      大头像上传：<input type="file" name="mypic"/><br/>      小头像上传：<input type="file" name="mypic"/><br/>    <input type="submit" value="上传"/><br/>     </form>  </body></html>

上传成功页面

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>    <!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>文件上传成功页面</title></head><body>   恭喜：${uploader }上传成功<br/>   文件上传列表：   <c:forEach var="f" items="${mypicFileName}">        <li>${f}</li>   </c:forEach></body></html>

上传失败页面

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