图片文件上传
文件的上传其实不用加COPY（）方法，在Struts文件中已经设置了上传文件的位置为才C:\目录下，COPY（）方法起到了把文件复制到指定的文件目录。
import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import java.util.Date;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;public class UpLoadAction extends ActionSupport {private static final long serialVersionUID = 572146812454l;private static final int BUFFER_SIZE = 16 * 1024;private File myFile;private String imageFileName;/** * 初始化页面 */@Overridepublic String execute() {return "input";}/** * 上传照片 * @return */public String upload(){imageFileName = new Date().getTime() +Math.random()+".jpg";File imageFile = new File(ServletActionContext.getServletContext().getRealPath("/Images") + "/" + imageFileName);copy(myFile, imageFile);return "success";}/** * copy图片文件 * @param src * @param dst */private static void copy(File src, File dst) {try {InputStream in = null;OutputStream out = null;try {in = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE);out = new BufferedOutputStream(new FileOutputStream(dst), BUFFER_SIZE);byte[] buffer = new byte[BUFFER_SIZE];while (in.read(buffer) > 0) {out.write(buffer);}} finally {if (null != in) {in.close();}if (null != out) {out.close();}}} catch (Exception e) {e.printStackTrace();}}public void setMyFile(File myFile) {this.myFile = myFile;}public String getImageFileName() {return imageFileName;}}<%@ page language ="java" contentType ="text/html;charset=utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style type="text/css">body {margin-left: 0px;margin-top: 0px;background-color:#ECF8FF;}</style></head> <body><form action ="../HR_WEB/UpLoadAction!upload.action" method ="POST" enctype ="multipart/form-data"> <table width="179" height="188" border="0" cellpadding="0" cellspacing="0" ><tr> <td align="center" bgcolor="#ECF8FF"><img name="照片" src ='<%=request.getContextPath() %>/Images/<s:property value ="imageFileName" /> ' width="90" height="150" /></td> </tr> <tr> <td align="center" bgcolor="#ECF8FF"><input name="myFile" type="file" size="15"/></td> </tr> <tr> <td align="center" bgcolor="#ECF8FF"><input type="submit" value="上传"/></td> </tr> </table></form></body> </html><?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><constant name="struts.multipart.saveDir" value="c:\"></constant><package name="HR_WEB" extends="struts-default" namespace="/HR_WEB"><!-- 照片上传 --><action name="UpLoadAction" class="hr.recruitment.action.UpLoadAction"><result name="input">/recruit/FileUpload.jsp</result><result name="success">/recruit/FileUpload.jsp</result></action></package></struts>