uploadify3.2+struts2文件上传
HTML页面
<!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><!-- 引入uploadify需要的css文件 --><link rel="stylesheet" type="text/css" href="css/uploadify.css"/></head><body> <!-- 上传按钮 --> <input type="file" id="upload-button" /> <!-- 上传 这里*也可以重写你需要的参数 --> <a href="javascript:$('#upload-button').uploadify('upload','*')">开始上传</a> <!-- 引入需要的JS文件 --><script type="text/javascript" src="js/jquery-1.8.2.js"></script><script type="text/javascript" src="js/jquery.uploadify.js"></script><script type="text/javascript" src="js/upload.js"></script></body></html>
JS
$('#upload-button').uploadify({ 'width': '265', 'height': '65', 'buttonText': '上传图片', 'auto': false, //不自动提交 'swf': 'images/uploadify.swf', //falsh上传图片 'uploader': 'upload.do', //上传处理，连接后台 'fileTypeDesc': 'Supported File Format', //文件类型描述 'fileTypeExts': '*.jpg;*.jpge;*.gif;*.png', //上传文件类型 'fileSizeLimit': '10MB', //文件最大大小 'fileObjName': 'file', //后台接受文件对象名，保持一致 'formData':{'id':1,'name':'irwin'}, //测试附加数据 'onSelectError': function(file, errorCode, errorMsg){ //file选择失败后触发 alert(errorMsg); }, 'onFallback': function(){ //flash报错触发 alert("请您先安装flash控件"); }, 'onUploadSuccess': function(file, data, response){ //上传成功后触发 if("sizeError" == data){ alert("文件大小不能超过10M"); } else if("typeError" == data){ alert("不支持的文件类型"); } }});Struts代码，action
package com.rying.dms.web.action;import java.io.File;import java.io.PrintWriter;import javax.servlet.http.HttpServletResponse;import org.apache.log4j.Logger;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;import com.rying.dms.util.UploadUtil;public class UploadAction extends ActionSupport{ private static Logger logger = Logger.getLogger(UploadAction.class); private static final long serialVersionUID = -3455411632907896807L; private File file; private String fileFileName; @Override public String execute(){ PrintWriter out = null; try { HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/html;charset=utf-8"); out = response.getWriter(); //test参数用来测试的路径名 UploadUtil.upload("test", file, fileFileName); } catch (Exception e) { logger.error("upload files error",e); out.print(e.getMessage()); } return null; } public File getFile() { return file; } public void setFile(File file) { this.file = file; } public String getFileFileName() { return fileFileName; } public void setFileFileName(String fileFileName) { this.fileFileName = fileFileName; }}上传Util类代码，配置文件
配置文件：
#server pathdocBase=D:\\uploadfileType=jpg,bmp,gif,png,jpeg,doc,pdf,exe,docx,avi,mp4,mp3,rmvb,3gp,swf#the size is KBmaxSize=10240#Thumbnail paththumbnailPath=thumbnailthumbnailWidth=100thumbnailHeight=80
Util工具类：
package com.rying.dms.util;import java.awt.Image;import java.awt.image.BufferedImage;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.util.Properties;import java.util.UUID;import javax.imageio.ImageIO;import org.apache.log4j.Logger;import com.rying.dms.exception.UploadException;import com.rying.dms.exception.UploadSizeException;import com.rying.dms.exception.UploadTypeException;import com.sun.image.codec.jpeg.JPEGCodec;import com.sun.image.codec.jpeg.JPEGEncodeParam;import com.sun.image.codec.jpeg.JPEGImageEncoder;public class UploadUtil { private static Logger logger = Logger.getLogger(UploadUtil.class); //这里定义一些错误信息的常量 private static final String SIZE_ERROR = "sizeError"; private static final String TYPE_ERROR = "typeError"; private static final String UPLOAD_ERROR = "uploadError"; private static String maxSize; private static String fileType; private static String docBase; private static String thumbnailPath; private static String thumbnailWidth; private static String thumbnailHeight; /** * Upload file util * * @author Irwin.Ai * @throws UploadTypeException, UploadSizeException */ public static void upload(String folderPath,File file, String fileName) throws UploadException, UploadTypeException, UploadSizeException { FileInputStream fis = null; FileOutputStream fos = null; try { //读取配置文件 fis = new FileInputStream(Thread.currentThread().getContextClassLoader().getResource("/").getPath().replace("%20", " ") + "/upload.properties"); Properties pro = new Properties(); pro.load(fis); docBase = pro.getProperty("docBase"); maxSize = pro.getProperty("maxSize"); fileType = pro.getProperty("fileType"); thumbnailPath = pro.getProperty("thumbnail"); thumbnailWidth = pro.getProperty("thumbnailWidth"); thumbnailHeight = pro.getProperty("thumbnailHeight"); //验证文件类型 String fileExt = ""; // 获得文件扩展名 if (fileName.lastIndexOf(".") >= 0) { fileExt = fileName.substring(fileName.lastIndexOf(".") + 1); } // 验证文件类型 logger.info("file extend name = " + fileExt + ", support file type = " + fileType); if (("," + fileType.toLowerCase() + ",").indexOf("," + fileExt.toLowerCase() + ",") < 0) { logger.warn("文件类型错误"); //类型验证错误，抛出异常，在action层捕获到，前台根据错误信息判断显示错误信息 throw new UploadTypeException(TYPE_ERROR, new UploadTypeException()); } //验证文件大小 fis = new FileInputStream(file); Integer size = fis.available(); logger.info("file size = " + (size / 1024) + ", max size = " + maxSize); if (size > Integer.parseInt(maxSize) * 1024) { logger.warn("文件大小不能超过10M"); throw new UploadSizeException(SIZE_ERROR, new UploadSizeException()); } //创建文件目录 //重命名文件 String newFileName = UUID.randomUUID().toString(); //保存路径 String saveDir = docBase + "/" + folderPath; //目录不存在则创建 File fileDir = new File(saveDir); if (!fileDir.exists()) { fileDir.mkdirs(); } //保存文件到服务器 //文件保存路径 String savePath = saveDir + "/" + newFileName + "." + fileExt; logger.info("save path = " + savePath); fos = new FileOutputStream(savePath); byte buffer[] = new byte[size]; int len = 0; while ((len = fis.read(buffer)) > 0) { fos.write(buffer, 0, len); } //保存文件到数据库 //-------------------------- } catch (IOException e){ logger.error(UPLOAD_ERROR, e); throw new UploadException(UPLOAD_ERROR, e); } finally { try { if(null != fos){ fos.flush(); fos.close(); } if(null != fis){ fis.close(); } } catch (IOException e) { logger.error("close stream error"); } } } //创建缩略图 public static void createThumbnail(File file, String fileExt) throws UploadException { try { Image img = ImageIO.read(file); BufferedImage image = new BufferedImage( Integer.parseInt(thumbnailWidth), Integer.parseInt(thumbnailHeight), BufferedImage.TYPE_INT_RGB); image.getGraphics().drawImage(img, 0, 0, Integer.parseInt(thumbnailWidth), Integer.parseInt(thumbnailHeight), null); String saveDir = docBase + "/" + thumbnailPath; File fileDir = new File(saveDir); if (!fileDir.exists()) { fileDir.mkdirs(); } String newFileName = file.getName(); String savePath = saveDir + "/" + newFileName + "." + fileExt; FileOutputStream fos = new FileOutputStream(savePath); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(fos); JPEGEncodeParam param = JPEGCodec.getDefaultJPEGEncodeParam(image); param.setQuality(1f, true); encoder.encode(image, param); fos.close(); } catch (Exception e) { logger.error("create thumbnail error." + e); throw new UploadException("create thumbnail error." + e); } }}页面效果：
