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
