单文件上传
上传页面
<%@ 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="upload.action" method="post" enctype="multipart/form-data"> ???文件：<input type="file" name="upload"><br><br> ???上传者：<input type="text" name="author"> ???<input type="submit" value="上传"></form></body></html>struts.xml配置
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC ???"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" ???"http://struts.apache.org/dtds/struts-2.5.dtd"><struts><constant name="struts.devMode" value="true"></constant><package name="jiangwenwen" namespace="/" extends="struts-default"> ???<action name="upload" class="cn.jiangwenwen.action.UploadAction" method="fileUpload"> ???????<result name="success">/success.jsp</result> ???</action></package></struts>Action类
public class UploadAction ?extends ActionSupport{ ???????//存放上传的文件对象 ???private File upload; ???????//上传的文件名称 ???private String uploadFileName; ???//上传的上传者 ???private String author; ???????public String fileUpload() throws IOException { ???????????????FileInputStream fis = new FileInputStream(upload); ???????????????String path = "D://pic/"+uploadFileName; ???????????????FileOutputStream fos = new FileOutputStream(path); ???????????????int flag = 0; ???????????????while((flag=fis.read())!=-1) { ???????????fos.write(flag); ???????} ???????fis.close(); ???????fos.close(); ???????????????return SUCCESS; ???????????} ???public File getUpload() { ???????return upload; ???} ???public void setUpload(File upload) { ???????this.upload = upload; ???} ???public String getUploadFileName() { ???????return uploadFileName; ???} ???public void setUploadFileName(String uploadFileName) { ???????this.uploadFileName = uploadFileName; ???} ???public String getAuthor() { ???????return author; ???} ???public void setAuthor(String author) { ???????this.author = author; ???} ???}成功接收页面
<%@ page language="java" contentType="text/html; charset=UTF-8" ???pageEncoding="UTF-8" isELIgnored="false"%><!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><!-- 此 /pic为服务器配置的路径--><img src="/pic/${uploadFileName }"></body></html>Struts2之上传下载
原文地址：https://www.cnblogs.com/jiangwenwen1/p/9465385.html