简单的上传文件
<input type="file" name="upload"/>
package com.baitw.struts.action;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;/** * * 上传图片 * * */public class UploadImage extends ActionSupport {private String title;private File upload;private String uploadContextType;private String uploadFileName;private String savePath;public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public File getUpload() {return upload;}public void setUpload(File upload) {this.upload = upload;}public String getUploadContextType() {return uploadContextType;}public void setUploadContextType(String uploadContextType) {this.uploadContextType = uploadContextType;}public String getUploadFileName() {return uploadFileName;}public void setUploadFileName(String uploadFileName) {this.uploadFileName = uploadFileName;}public String getSavePath() {return ServletActionContext.getRequest().getRealPath(savePath);}public void setSavePath(String savePath) {this.savePath = savePath;}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubFileOutputStream fos=new FileOutputStream(getSavePath()+"\"+getUploadFileName());FileInputStream fis=new FileInputStream(getUpload());byte[] buffer=new byte[1024];int length=0;while((length=fis.read(buffer))>0){fos.write(buffer,0,length);}return "upload_success";}}<!-- 上传图片 --><action name="uploadImage" name="code"><%@ page language="java" contentType="text/html; charset=GBK"%><%@taglib prefix="s" uri="/struts-tags"%><html> <head> <title>上传成功</title> </head> <body> <img src="<s:property value="'uploadImages/'+uploadFileName"/>"/><br> </body></html>