1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 ????pageEncoding="UTF-8"%> 3 <%@taglib uri="/struts-tags" prefix="s"%> 4 <!DOCTYPE html> 5 <html> 6 ????<head> 7 ????????<meta charset="UTF-8"> 8 ????????<title>struts2的一个例子</title> 9 ????</head>10 ????<body>11 ????????<s:form action="photo.action" method="post" enctype="multipart/form-data">12 ????????????<s:textarea name="username" label="用户名"/>13 ????????????<s:file name="photo" label="请选择上传图片"/>14 ????????????<s:submit value="提交"/>15 ????????</s:form>16 ????????17 ????</body>18 </html>
1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> 3 ??<filter> 4 ????<filter-name>struts2</filter-name> 5 ????<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> 6 ??</filter> 7 ??<filter-mapping> 8 ????<filter-name>struts2</filter-name> 9 ????<url-pattern>/*</url-pattern>10 ??</filter-mapping>11 ??<display-name></display-name>12 ??<welcome-file-list>13 ????<welcome-file>index.jsp</welcome-file>14 ??</welcome-file-list>15 </web-app>
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE struts PUBLIC 3 ????"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" 4 ????"http://struts.apache.org/dtds/struts-2.3.dtd"> 5 <struts> 6 ????<constant name="struts.devMode" value="true"/> 7 ????<package name="hello" extends="struts-default" namespace="/"> 8 ????????<action name="photo" class="com.xiaostudy.web.UpPhoto" method="upPhoto"> 9 ????????????<interceptor-ref name="defaultStack">10 ????????????????<param name="fileUpload.allowedExtensions">.jpeg,.jpg,.gif,.png</param>11 ????????????</interceptor-ref>12 ????????????<result name="success">/ok.jsp</result>13 ????????????<result name="input">/err.jsp</result>14 ????????</action>15 ????</package>16 </struts>
1 package com.xiaostudy.web; 2 ?3 import java.io.File; 4 ?5 import org.apache.struts2.ServletActionContext; 6 ?7 import com.opensymphony.xwork2.ActionSupport; 8 ?9 public class UpPhoto ?extends ActionSupport {10 ????11 ????public String username;12 ????public File photo;13 ????public String photoFileName;14 ????public String photoContentType;15 ????16 ????public String upPhoto() {17 ????????18 ????????String path = ServletActionContext.getServletContext().getRealPath("/WEB-INF/files");19 ????????File file2 = new File(path);20 ????????if(!file2.exists()) {21 ????????????file2.mkdirs();22 ????????????System.out.println("创建了文件夹》》》》》》");23 ????????}24 ????????File file3 = new File(file2, photoFileName);25 ????????photo.renameTo(file3);26 ????????27 ????????System.out.println(photo);28 ????????System.out.println(file2);29 ????????System.out.println(file3);30 ????????31 ????????32 ????????return SUCCESS;33 ????}34 35 ????public String getUsername() {36 ????????return username;37 ????}38 39 ????public void setUsername(String username) {40 ????????this.username = username;41 ????}42 43 ????public File getPhoto() {44 ????????return photo;45 ????}46 47 ????public void setPhoto(File photo) {48 ????????this.photo = photo;49 ????}50 51 ????public String getPhotoFileName() {52 ????????return photoFileName;53 ????}54 55 ????public void setPhotoFileName(String photoFileName) {56 ????????this.photoFileName = photoFileName;57 ????}58 59 ????public String getPhotoContentType() {60 ????????return photoContentType;61 ????}62 63 ????public void setPhotoContentType(String photoContentType) {64 ????????this.photoContentType = photoContentType;65 ????}66 }1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 ????pageEncoding="UTF-8"%> 3 <!DOCTYPE html> 4 <html> 5 ????<head> 6 ????????<meta charset="UTF-8"> 7 ????????<title>struts2的一个例子</title> 8 ????</head> 9 ????<body>10 ????okokokok11 ????</body>12 </html>
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 ????pageEncoding="UTF-8"%> 3 <!DOCTYPE html> 4 <html> 5 <head> 6 <meta charset="UTF-8"> 7 <title>Insert title here</title> 8 </head> 9 <body>10 不是照片格式11 </body>12 </html>
struts2——上传图片格式
原文地址：https://www.cnblogs.com/xiaostudy/p/9446471.html