使用swfUpload进行批量上传图片
uploadInput页面：
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>上传照片</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<link href="swfupload/default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="/tiantian/swfupload/swfupload.js"></script>
<script type="text/javascript" src="/tiantian/swfupload/handlers.js"></script>
<script type="text/javascript">
var swfu;
window.onload = function () {
swfu = new SWFUpload({
// Backend Settings
upload_url: "/tiantian/picture/upload",//上传到哪个地址
post_params: {"albumId": "${album.id}"},//传过去的参数
// File Upload Settings
file_size_limit : "20 MB", // 2MB
file_types : "*.jpg;*.jpeg;*.gif",
file_types_description : "JPG Images",
file_upload_limit : 0,
// Event Handler Settings - these functions as defined in Handlers.js
// The handlers are not part of SWFUpload but are part of my website and control how
// my website reacts to the SWFUpload events.
swfupload_preload_handler : preLoad,
swfupload_load_failed_handler : loadFailed,
file_queue_error_handler : fileQueueError,
file_dialog_complete_handler : fileDialogComplete,
upload_progress_handler : uploadProgress,
upload_error_handler : uploadError,
upload_success_handler : uploadSuccess,
upload_complete_handler : uploadComplete,
// Button Settings
button_image_url : "/tiantian/images/swfupload/SmallSpyGlassWithTransperancy_17x18.png",
button_placeholder_id : "spanButtonPlaceholder",
button_width: 180,
button_height: 18,
button_text : '<span class="button">Select Images <span class="buttonSmall">(2 MB Max)</span></span>',
button_text_style : '.button { font-family: Helvetica, Arial, sans-serif; font-size: 12pt; } .buttonSmall { font-size: 10pt; }',
button_text_top_padding: 0,
button_text_left_padding: 18,
button_window_mode: SWFUpload.WINDOW_MODE.TRANSPARENT,
button_cursor: SWFUpload.CURSOR.HAND,
// Flash Settings
flash_url : "/tiantian/swfupload/swfupload.swf",
flash9_url : "/tiantian/swfupload/swfupload_fp9.swf",
custom_settings : {
upload_target : "divFileProgressContainer"
},
//Image Resize:no,
// Debug Settings
debug: false
});
};
</script>
<style type="text/css">
#tophead {
text-align:left;
padding-left:10px;
margin-top:10px;
}
</style>
</head>
<body>
<div id="tophead">
<a href="picture/index">返回相册首页</a>
</div>
<div id="content" style="text-align: left">
<h2>${album.name}</h2>
<p>upload Images to ${album.name}</p>
<form>
<div style="width: 180px; height: 18px; border: solid 1px #7FAAFF; background-color: #C5D9FF; padding: 2px;">
<span id="spanButtonPlaceholder"></span>
</div>
</form>
<div id="divFileProgressContainer" style="height: 75px;"></div>
<div id="thumbnails"></div>
</div>
</body>
</html>
上传页面用到的handler.js文件的内容：
function preLoad() {
if (!this.support.loading) {
alert("You need the Flash Player 9.028 or above to use SWFUpload.");
return false;
}
}
function loadFailed() {
alert("Something went wrong while loading SWFUpload. If this were a real application we'd clean up and then give you an alternative");
}
function fileQueueError(file, errorCode, message) {
try {
var imageName = "error.gif";
var errorName = "";
if (errorCode === SWFUpload.errorCode_QUEUE_LIMIT_EXCEEDED) {
errorName = "You have attempted to queue too many files.";
}
if (errorName !== "") {
alert(errorName);
return;
}
switch (errorCode) {
case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
imageName = "zerobyte.gif";
break;
case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
imageName = "toobig.gif";
break;
case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
default:
alert(message);
break;
}
addImage("images/" + imageName);
} catch (ex) {
this.debug(ex);
}
}
function fileDialogComplete(numFilesSelected, numFilesQueued) {
try {
if (numFilesQueued > 0) {
this.startResizedUpload(this.getFile(0).ID, 100, 100, SWFUpload.RESIZE_ENCODING.JPEG, 100);
}
} catch (ex) {
this.debug(ex);
}
}
function uploadProgress(file, bytesLoaded) {
try {
var percent = Math.ceil((bytesLoaded / file.size) * 100);
var progress = new FileProgress(file, this.customSettings.upload_target);
progress.setProgress(percent);
progress.setStatus("Uploading...");
progress.toggleCancel(true, this);
} catch (ex) {
this.debug(ex);
}
}
function uploadSuccess(file, serverData) {
try {
var progress = new FileProgress(file, this.customSettings.upload_target);
if (serverData.substring(0, 7) === "FILEID:") {
//把上传的照片的缩略图在页面上进行显示
addImage("picture/thumbnail/" + serverData.substring(7));
// alert(serverData.substring(7)+"hello");
progress.setStatus("Upload Complete.");
progress.toggleCancel(false);
} else {
addImage("images/swfupload/error.gif");
progress.setStatus("Error.");
progress.toggleCancel(false);
alert(serverData);
}
} catch (ex) {
this.debug(ex);
}
}
function uploadComplete(file) {
try {
/* I want the next upload to continue automatically so I'll call startUpload here */
if (this.getStats().files_queued > 0) {
this.startResizedUpload(this.getFile(0).ID, 500, 500, SWFUpload.RESIZE_ENCODING.JPEG, 500);
} else {
var progress = new FileProgress(file, this.customSettings.upload_target);
progress.setComplete();
progress.setStatus("All images received.");
progress.toggleCancel(false);
}
} catch (ex) {
this.debug(ex);
}
}
function uploadError(file, errorCode, message) {
var imageName = "error.gif";
var progress;
try {
switch (errorCode) {
case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
try {
progress = new FileProgress(file, this.customSettings.upload_target);
progress.setCancelled();
progress.setStatus("Cancelled");
progress.toggleCancel(false);
}
catch (ex1) {
this.debug(ex1);
}
break;
case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
try {
progress = new FileProgress(file, this.customSettings.upload_target);
progress.setCancelled();
progress.setStatus("Stopped");
progress.toggleCancel(true);
}
catch (ex2) {
this.debug(ex2);
}
case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
imageName = "uploadlimit.gif";
break;
default:
alert(message);
break;
}
addImage("images/" + imageName);
} catch (ex3) {
this.debug(ex3);
}
}
function addImage(src) {
var newImg = document.createElement("img");
newImg.style.margin = "5px";
document.getElementById("thumbnails").appendChild(newImg);
if (newImg.filters) {
try {
newImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;
} catch (e) {
// If it is not set initially, the browser will throw an error. This will set it if it is not set yet.
newImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';
}
} else {
newImg.style.opacity = 0;
}
newImg.onload = function () {
fadeIn(newImg, 0);
};
newImg.src = src;
}
function fadeIn(element, opacity) {
var reduceOpacityBy = 5;
var rate = 30; // 15 fps
if (opacity < 100) {
opacity += reduceOpacityBy;
if (opacity > 100) {
opacity = 100;
}
if (element.filters) {
try {
element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = opacity;
} catch (e) {
// If it is not set initially, the browser will throw an error. This will set it if it is not set yet.
element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';
}
} else {
element.style.opacity = opacity / 100;
}
}
if (opacity < 100) {
setTimeout(function () {
fadeIn(element, opacity);
}, rate);
}
}
/* ******************************************
* FileProgress Object
* Control object for displaying file info
* ****************************************** */
function FileProgress(file, targetID) {
this.fileProgressID = "divFileProgress";
this.fileProgressWrapper = document.getElementById(this.fileProgressID);
if (!this.fileProgressWrapper) {
this.fileProgressWrapper = document.createElement("div");
this.fileProgressWrapper.className = "progressWrapper";
this.fileProgressWrapper.id = this.fileProgressID;
this.fileProgressElement = document.createElement("div");
this.fileProgressElement.className = "progressContainer";
var progressCancel = document.createElement("a");
progressCancel.className = "progressCancel";
progressCancel.href = "#";
progressCancel.style.visibility = "hidden";
progressCancel.appendChild(document.createTextNode(" "));
var progressText = document.createElement("div");
progressText.className = "progressName";
progressText.appendChild(document.createTextNode(file.name));
var progressBar = document.createElement("div");
progressBar.className = "progressBarInProgress";
var progressStatus = document.createElement("div");
progressStatus.className = "progressBarStatus";
progressStatus.innerHTML = " ";
this.fileProgressElement.appendChild(progressCancel);
this.fileProgressElement.appendChild(progressText);
this.fileProgressElement.appendChild(progressStatus);
this.fileProgressElement.appendChild(progressBar);
this.fileProgressWrapper.appendChild(this.fileProgressElement);
document.getElementById(targetID).appendChild(this.fileProgressWrapper);
fadeIn(this.fileProgressWrapper, 0);
} else {
this.fileProgressElement = this.fileProgressWrapper.firstChild;
this.fileProgressElement.childNodes[1].firstChild.nodeValue = file.name;
}
this.height = this.fileProgressWrapper.offsetHeight;
}
FileProgress.prototype.setProgress = function (percentage) {
this.fileProgressElement.className = "progressContainer green";
this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {
this.fileProgressElement.className = "progressContainer blue";
this.fileProgressElement.childNodes[3].className = "progressBarComplete";
this.fileProgressElement.childNodes[3].style.width = "";
};
FileProgress.prototype.setError = function () {
this.fileProgressElement.className = "progressContainer red";
this.fileProgressElement.childNodes[3].className = "progressBarError";
this.fileProgressElement.childNodes[3].style.width = "";
};
FileProgress.prototype.setCancelled = function () {
this.fileProgressElement.className = "progressContainer";
this.fileProgressElement.childNodes[3].className = "progressBarError";
this.fileProgressElement.childNodes[3].style.width = "";
};
FileProgress.prototype.setStatus = function (status) {
this.fileProgressElement.childNodes[2].innerHTML = status;
};
FileProgress.prototype.toggleCancel = function (show, swfuploadInstance) {
this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
if (swfuploadInstance) {
var fileID = this.fileProgressID;
this.fileProgressElement.childNodes[0].onclick = function () {
swfuploadInstance.cancelUpload(fileID);
return false;
};
}
};
后台进行处理的struts2 Action代码：
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.Date;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.RequestAware;
import org.apache.struts2.interceptor.SessionAware;
import com.opensymphony.xwork2.ActionSupport;
import com.tiantian.tiantian.model.Album;
import com.tiantian.tiantian.model.Picture;
import com.tiantian.tiantian.model.User;
import com.tiantian.tiantian.service.AlbumService;
import com.tiantian.tiantian.service.PictureService;
import com.tiantian.tiantian.util.ImageSizer;
import com.tiantian.tiantian.util.Pager;
import com.tiantian.tiantian.util.Util;
public class PictureAction extends ActionSupport implements RequestAware,SessionAware {
/**
*
*/
private static final long serialVersionUID = 375280356930857300L;
private PictureService pictureService;
private AlbumService albumService;
private int offset;
private int maxResults = 20;
private int totalRecords;
private int totalPage;
private Pager<Picture> pager;
private Map<String, Object> request;
private Map<String, Object> session;
private List<Picture> pictures;
private List<Album> albums;
private int albumId;
private Album album;
//upload
private File Filedata;//swfupload上传文件的默认名称
private String FiledataFileName;
private String FiledataContentType;
private String albumName;
private int id;
private Picture pic;
private String username;
public String execute() {
User currentUser = (User)session.get("user");
ifFirstIn(currentUser);//如果用户是第一次访问，则给ta添加一个默认的相册
if (Util.isNull(username))
username = currentUser.getUsername();
albums = albumService.find(username);
return SUCCESS;
}
private void ifFirstIn(User currentUser) {
int size = albumService.find(currentUser.getUsername()).size();
if (size == 0) {
Album album = new Album();
album.setOwner(currentUser);
album.setName("我的相册");
albumService.add(album);
}
}
public String myPictures() {
if (albumId > 0) {
album = albumService.findById(albumId);
Object obj = request.get("pager.offset");
if (obj != null)
offset = (Integer)obj;
pager = pictureService.find(offset, maxResults, albumId);
pictures = pager.getData();
totalRecords = pager.getTotalCount();
}
return "myPictures";
}
public String detail() {
if (id > 0) {
pic = pictureService.find(id);
if (pic != null)
pictures = pictureService.findAll(pic.getAlbum().getId());
}
return "detail";
}
public String uploadInput() {
if (albumId > 0)
album = albumService.findById(albumId);
return "uploadInput";
}
public void upload() throws IOException {
// System.out.println("albumId = "+albumId);
if (albumId > 0) {
if (Filedata != null) {
User currentUser = (User)session.get("user");
Album album = albumService.findById(albumId);
String path = ServletActionContext.getServletContext().getRealPath("/images/pics/"+currentUser.getUsername()+"/"+album.getId());
File dir = new File(path);
if (!dir.exists())
dir.mkdirs();
String fileName = geneFileName(FiledataFileName);
File dest = new File(dir,fileName);
Util.upload(Filedata, dest);
String picName = FiledataFileName.substring(0,FiledataFileName.lastIndexOf("."));
boolean flag = album.getPictures().size()==0;
Picture pic = new Picture();
pic.setUrl(fileName);
pic.setName(picName);
pic.setAlbum(album);
pictureService.add(pic);
album.getPictures().add(pic);
int id = pic.getId();
if (flag) {
int index = FiledataFileName.lastIndexOf(".");
String extension = FiledataFileName.substring(index+1);
String faceFileName = geneFileName(FiledataFileName);
String faceUrl = currentUser.getUsername()+"/"+album.getId()+"/"+geneFileName(FiledataFileName);
File dest1 = new File(dir,faceFileName);
ImageSizer.resize(Filedata, dest1, 200, extension);
album.setFaceUrl(faceUrl);
}
albumService.update(album);
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
out.print("FILEID:"+id);
}
}
}
private String geneFileName(String fileName) {
int index = fileName.lastIndexOf(".");
String extension = fileName.substring(index);
String prefix = Util.formatDate(new Date(), "yyyyMMddHHmmss");
String name = prefix + extension;
return name;
}
public void addAlbum() throws IOException {
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
String outStr = "ok";
if (!Util.isNull(albumName)) {
User owner = (User)session.get("user");
Album album = new Album();
album.setName(albumName);
album.setOwner(owner);
albumService.add(album);
} else
outStr = "操作失败！相册名称不能为空！";
out.write(outStr);
out.flush();
out.close();
}
public void delAlbum() throws IOException {
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html;charset=utf-8");
PrintWriter out = response.getWriter();
String outStr = "ok";
if (albumId > 0) {
album = albumService.findById(albumId);
albumService.del(albumId);
String path = ServletActionContext.getServletContext().getRealPath("/images/pics")+"/"+album.getOwner().getUsername()+"/"+album.getId();
File dest = new File(path);
if (dest.exists())
delDerectory(dest);
} else {
outStr = "操作错误，删除失败！";
}
out.write(outStr);
out.flush();
out.close();
}
private void delDerectory(File dir) {
File[] files = dir.listFiles();
for (File file:files) {
file.delete();
}
dir.delete();
}
public String thumbnail() throws IOException {
if (id > 0) {
pic = pictureService.find(id);
String path = ServletActionContext.getServletContext().getRealPath("/images/pics")+"/"+pic.getAlbum().getOwner().getUsername()+"/"+pic.getAlbum().getId()+"/"+pic.getUrl();
FileInputStream fis = new FileInputStream(path);
int len = fis.available();
byte bytes[] = new byte[len];
fis.read(bytes);
fis.close();
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("image/jpeg");
OutputStream os = response.getOutputStream();
os.write(bytes);
os.flush();
os.close();
}
return NONE;
}
public void del() throws IOException {
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String outStr = "ok";
if (id > 0) {
Picture pic = pictureService.find(id);
if (pic != null) {
// pic.setAlbum(null);
// pictureService.update(pic);
pictureService.del(id);
String path = ServletActionContext.getServletContext().getRealPath("/images/pics")+"/"+pic.getAlbum().getOwner().getUsername()+"/"+pic.getAlbum().getId()+"/"+pic.getUrl();
File dest = new File(path);
if (dest.exists())
dest.delete();
}
} else
outStr = "操作错误，请求的内容不存在！";
out.write(outStr);
out.flush();
out.close();
}
public PictureService getPictureService() {
return pictureService;
}
@Resource
public void setPictureService(PictureService pictureService) {
this.pictureService = pictureService;
}
public int getOffset() {
return offset;
}
public void setOffset(int offset) {
this.offset = offset;
}
public int getMaxResults() {
return maxResults;
}
public void setMaxResults(int maxResults) {
this.maxResults = maxResults;
}
public int getTotalRecords() {
return totalRecords;
}
public void setTotalRecords(int totalRecords) {
this.totalRecords = totalRecords;
}
public int getTotalPage() {
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public Pager<Picture> getPager() {
return pager;
}
public void setPager(Pager<Picture> pager) {
this.pager = pager;
}
public Map<String, Object> getRequest() {
return request;
}
public void setRequest(Map<String, Object> request) {
this.request = request;
}
public List<Picture> getPictures() {
return pictures;
}
public void setPictures(List<Picture> pictures) {
this.pictures = pictures;
}
public List<Album> getAlbums() {
return albums;
}
public void setAlbums(List<Album> albums) {
this.albums = albums;
}
public Map<String, Object> getSession() {
return session;
}
public void setSession(Map<String, Object> session) {
this.session = session;
}
public AlbumService getAlbumService() {
return albumService;
}
@Resource
public void setAlbumService(AlbumService albumService) {
this.albumService = albumService;
}
public int getAlbumId() {
return albumId;
}
public void setAlbumId(int albumId) {
this.albumId = albumId;
}
public File getFiledata() {
return Filedata;
}
public void setFiledata(File filedata) {
Filedata = filedata;
}
public String getFiledataFileName() {
return FiledataFileName;
}
public void setFiledataFileName(String filedataFileName) {
FiledataFileName = filedataFileName;
}
public String getFiledataContentType() {
return FiledataContentType;
}
public void setFiledataContentType(String filedataContentType) {
FiledataContentType = filedataContentType;
}
public String getAlbumName() {
return albumName;
}
public void setAlbumName(String albumName) {
this.albumName = albumName;
}
public Album getAlbum() {
return album;
}
public void setAlbum(Album album) {
this.album = album;
}
public int getId() {
return id;
}
public void setId(String id) {
if (!Util.isNull(id)) {
try {
this.id = Integer.parseInt(id);
} catch (NumberFormatException e) {
}
}
}
public Picture getPic() {
return pic;
}
public void setPic(Picture pic) {
this.pic = pic;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
}