SWFupload+servlet 实现多图片上传
2014-11-26 14:33
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原文地址：
SWFupload+servlet 实现多图片上传
博客分类：SWFupload
SWFuploadservlet多图片上传进度条鼠标拖动层
目标
1.使用 swfuplaod3.5+servlet 实现多图片上传
效果图:
注:
1. 里面有遮罩层
2. 谈出的层可以拖动
3. 加入了进度条
4. 里面采用jquery 注意引用js
5. google. firefox ie 测试通过
6. 在"允许用户同时上传 20 张图片，单张图片容量不超过1 MB" 上面有个 错误信息层(用于显示上传结果,加载swfupload失败 等详情分析handlers.js)
7. 处理 swfupload 兼容 ie9 上传按钮不出来 问题 ;
8. 红色框:功能主要是在KindEditor中使用(handlers.js 中给注释了)
目录:
需要的jar
commons-fileupload-1.2.jar
commons-io-1.3.2.jar
index.jsp
Html代码
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ page isELIgnored="false" %>
<%
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>文件上传工具V2.1</title>
<link href="${pageContext.request.contextPath}/css/default.css" rel="stylesheet"type="text/css" />
<script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-latest.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/js/swfupload.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/js/handlers.js"></script>
<script type="text/javascript">
var contextPath="${pageContext.request.contextPath}";
function startLoad(){
var url=contextPath+"/servlet/FileUploadServlet.htm?jsessionId=${pageContext.session.id}"; //处理上传的servlet
var sizeLimit="1 MB";// 文件的大小 注意: 中间要有空格
var types="*.jpg;*.jpeg;*.gif"; //注意是 " ; " 分割
var typesdesc="web iamge file"; //这里可以自定义
var uploadLimit=20; //上传文件的 个数
initSwfupload(url,sizeLimit,types,typesdesc,uploadLimit);
}
</script>
</head>
<body>
<center>
<input type="button" onclick="startLoad()" value="批量图片上传"/></center>
</body>
</html>
handlers.js
Java代码
var swfu;
var insertAllStatus=true; //全部插入按钮的状态
//初始化 swf
function initSwfupload(url,sizeLimit,types,typsdesc,uploadLimit){
//初始化界面
init(uploadLimit,sizeLimit);
//初始化 swfupload
var settings={
// Flash Settings flash9_url :"http://192.168.1.115:8080/bjsearch/js/plugins/multiimage/js/swfupload_fp9.swf",
flash_url : contextPath+"/js/swfupload.swf",
file_post_name:"filedata",
upload_url: url,// contextPath+"/servlet/FileUploadServlet.htm?jsessionId=${pageContext.session.id}",
post_params: {"name" : "test"},
// File Upload Settings
file_size_limit : sizeLimit, // 1000MB
file_types : types, //*.*
file_types_description : typsdesc,//"Web Image Files",
file_upload_limit : uploadLimit,//20
file_queue_limit : 0,
file_queue_error_handler : fileQueueError,
file_dialog_complete_handler : fileDialogComplete,//选择好文件后提交
file_queued_handler : fileQueued,
swfupload_load_failed_handler : swfUploadLoadFailed, //swf 加载失败
swfupload_loaded_handler : swfUploadLoaded, //swf 加载完成
upload_start_handler: uploadStart,
upload_progress_handler : uploadProgress,
upload_error_handler : uploadError,
upload_success_handler : uploadSuccess,
upload_complete_handler : uploadComplete,
// Button Settings
button_image_url : contextPath+"/images/select-files-zh_CN.png",
button_placeholder_id : "buttonPlaceholder",
button_width: 72,
button_height: 23,
button_text : '<span style="display:block;"></span>',
custom_settings : {
photoContainer_Id : "photoContainer", //图片的容器id
btnUpload_ID : "btnUpload", //上传按钮
insertAll_Id : "insertAll", //全部插入
clearAll_Id : "clearAll", //全部清空
errorMsg_Id : "errorMsg", //错误信息
errorMsg_fadeOutTime: 2000 //错误信息谈出的时间
},
// Debug Settings
debug: false, //是否显示调试窗口
auto_upload:false
};
try{
//等 1秒后初始化 swf
setTimeout(function (){swfu = new SWFUpload(settings);},1000);
}catch (ex) {
var message='<div id="divAlternateContent" style="background-color: #FFFF66; text-align:center;">'
+'<font color="red">工具加载失败,请刷新再试!</div>';
addErrorMsg(message,false);
this.debug(ex);
}
}
//初始化 界面
function init(uploadLimit,sizeLimit){
if($(".ke-dialog-upload").length>0){
$(".ke-dialog-upload").remove();
}
var uploadbody='<div id="uploadBody" class="ke-dialog-upload">'
+'<div id="uploadHead" class="ke-dialog-upload-head">'
+' <div style="float: left">批量图片上传</div><div id="iconClose" class="ke-dialog-icon-close" title="关闭"></div><div style="clear: both"></div>'
+' </div>'
+' <!--content-->'
+' <div class="ke-dialog-content">'
+' <div class="ke-dialog-content-head">'
+' <div id="errorMsg" class="ke-dialog-content-error"></div>'
+' <div id="swfbuttonParent" class="ke-swfupload-button"><span id="buttonPlaceholder" /></div>'
+' <div class="ke-inline-block ke-swfupload-desc">允许用户同时上传 <font color="red">'+uploadLimit+'</font> 张图片，单张图片容量不超过<font color="red">'+sizeLimit+'</font></div>'
+' <div class="ke-button-common ke-button-outer ke-swfupload-startupload"><input id="btnUpload" type="button" class="ke-button-common ke-button" value="开始上传"></div>'
+' <div style="clear: both;"></div>'
+' </div>'
+' <div id="photoContainer" class="ke-swfupload-body">'
+' </div>'
+' </div>'
+' <!--bottom-->'
+' <div class="ke-dialog-footer">'
+' <span class="ke-button-common ke-button-outer" title="全部插入"><input id="insertAll" class="ke-button-common ke-button" type="button" value="全部插入"></span>'
+' <span class="ke-button-common ke-button-outer" title="全部清空"><input id="clearAll" class="ke-button-common ke-button" type="button" value="全部清空"></span>'
+' <span class="ke-button-common ke-button-outer" title="取消"><input id="btncancel" class="ke-button-common ke-button" type="button" value="取消"></span></div>'
+' </div> '
+'<div style="display: block; width: 1903px; height: 12702px; position: absolute; left: 0px; top: 0px; z-index: 811212;" class="ke-dialog-mask"></div>';
$('body').append(uploadbody);
$("#iconClose").bind("click",{uploadBodyId:'uploadBody'},iconClose);
$("#btncancel").bind("click",{uploadBodyId:'uploadBody'},iconClose);
//处理 鼠标拖动层
var dragging = false;
var iX, iY;
$("#uploadHead").mousedown(function(e) {
dragging = true;
iX = e.clientX - this.offsetParent.offsetLeft;
iY = e.clientY - this.offsetParent.offsetTop;
return false;
});
document.onmousemove = function(e) {
if (dragging) {
var e = e || window.event;
var oX = e.clientX - iX;
var oY = e.clientY - iY;
$("#uploadBody").css({"left":oX<0?0:oX + "px", "top":oY<0?0:oY + "px"});
return false;
}
};
$(document).mouseup(function(e) {
dragging = false;
e.cancelBubble = true;
});
}
/**
* 当文件选择对话框关闭消失时，如果选择的文件成功加入上传队列，
* 那么针对每个成功加入的文件都会触发一次该事件（N个文件成功加入队列，就触发N次此事件）。
* @param {} file
* id : string, // SWFUpload控制的文件的id,通过指定该id可启动此文件的上传、退出上传等
* index : number, // 文件在选定文件队列（包括出错、退出、排队的文件）中的索引，getFile可使用此索引
* name : string, // 文件名，不包括文件的路径。
* size : number, // 文件字节数
* type : string, // 客户端操作系统设置的文件类型
* creationdate : Date, // 文件的创建时间
* modificationdate : Date, // 文件的最后修改时间
* filestatus : number // 文件的当前状态，对应的状态代码可查看SWFUpload.FILE_STATUS
*/
// 关闭 /取消 按钮 事件
function iconClose(event){
if(typeof swfu != 'undefined' || swfu!=null){
swfu.destroy();
}
$("#"+event.data.uploadBodyId).remove();
$(".ke-dialog-mask").remove();
insertAllStatus=true;
}
//全部清空
function clearUpload(){
$("div[id^='SWFUpload_']").each(function(i,obj){
deleteFile($(obj).attr('id'));
});
}
// 全部插入
function insertAllevent(){
//alert(swfu.getStats().successful_uploads);//successful_uploads
$("img[data-status='0']").each(function(i,obj){
var showimg = new Image();
showimg.src=$(obj).attr("src");
var width = showimg.width;
var height = showimg.height;
var title=$(obj).attr("title");
var url=$(obj).attr("src");
//KE.plugin['multiimage'].insert("ArticleBody",url, title,width,height,"0","");
});
$("#iconClose").trigger("click");
}
// 添加错误信息
function addErrorMsg(message,isFadeOut){
$("#"+swfu.customSettings.errorMsg_Id).empty().html(message);
if(isFadeOut){
setTimeout(function () {
$("#"+swfu.customSettings.errorMsg_Id).children().fadeOut(1000);
},parseInt(swfu.customSettings.errorMsg_fadeOutTime));
}
}
//鼠标 移入 移出的 背景效果
function photoMouseOver(){
$(this).addClass("ke-on");
}
function photoMouseOut(obj){
$(this).removeClass("ke-on");
}
//swf 准备加载 为使用
function swfUploadPreLoad() {
var self = this;
var loading = function () {
var longLoad = function () {
document.getElementById("divLoadingContent").style.display = "none";
document.getElementById("divLongLoading").style.display = "";
};
this.customSettings.loadingTimeout = setTimeout(function () {
longLoad.call(self)
},
15 * 1000
);
};
this.customSettings.loadingTimeout = setTimeout(function () {
loading.call(self);
},
1*1000
);
}
//swf 加载失败
function swfUploadLoadFailed() {
//clearTimeout(this.customSettings.loadingTimeout);
var message='<div id="divAlternateContent" style="background-color: #FFFF66; text-align:center;">'
+'<font color="red">请安装或者升级您的Flash插件!</font></div>';
addErrorMsg(message,false);
}
//swf 加载 完成
function swfUploadLoaded() {
//var self = this;
//clearTimeout(this.customSettings.loadingTimeout);
addErrorMsg("",false);
$("#"+this.customSettings.btnUpload_ID).click(function (){swfu.startUpload()});
}
//每次被加入 到列队中
function fileQueued(file){
addReadyFileInfo(file.id,file.name,"等待上传");
}
//文件对话框选择完成
function fileDialogComplete(numFilesSelected, numFilesQueued) {
try {
if (numFilesQueued > 0) {
$("#"+this.customSettings.clearAll_Id).bind("click",clearUpload);
}
if(this.settings.auto_upload){//是否要上传
this.startUpload();
}
} catch (ex) {
this.debug(ex);
}
}
//都加入列队中 的错误信息
function fileQueueError(file, errorCode, message) {
try {
switch (errorCode) {
case SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED:
message = "<font color='red'>数量超过"+swfu.getSetting('file_upload_limit')+"张啦!</font>";
break;
case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
message = "<font color='red'>文件超过"+swfu.getSetting('file_size_limit')+"啦!</font>";
break;
case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
message = "<font color='red'>文件不能为空哦!";
case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
message = "<font color='red'>文件格式只能为"+swfu.getSetting('fileTypes')+"!</font>";
break;
default:
message="<font color='red'>选择文件发生错误!"+"</font>";
return;
}
addErrorMsg(message,true);
//addReadyFileInfo(file.id,file.name,"上传错误")+"</font>";
} catch (ex) {
this.debug(ex);
}
}
// 开始上传
function uploadStart(file){
$("#"+file.id).find(".ke-progressbar").css("display","block");
$("#"+file.id).find(".ke-message").css("display","none");
}
// 上传的进度
function uploadProgress(file, bytesLoaded) {
try {
var percent = Math.ceil((bytesLoaded / file.size) * 100);
if(percent>100){
percent=100;
}
var progress = new FileProgress(file);
progress.setProgress(percent);
if (percent === 100) {
//progress.setStatus("建缩略图...");//正在创建缩略图...
//progress.toggleCancel(false, this);
}else {
progress.setStatus("正在上传...");
progress.toggleCancel(true, this);
}
}catch (ex) {
this.debug(ex);
}
}
// 上传到服务器后 的放回信息
function uploadSuccess(file, serverData) {
try {
var progress = new FileProgress(file);
var data = eval("(" + serverData + ")");
$("#"+file.id).find(".ke-img").attr("data-status",data.status);
if (data.status == 0 || data.status == "0") {
$("#"+file.id).find(".ke-img").attr("src",contextPath+data.message);
progress.setStatus("上传成功");
progress.toggleCancel();
if(insertAllStatus){
if(swfu.getStats().successful_uploads>0){
$("#"+swfu.customSettings.insertAll_Id).bind("click",insertAllevent);
}
insertAllStatus=false;
}
return;
}else if(data.status == 1 || data.status == "1"){
progress.setStatus("上传失败");
}else if(data.status == 2 || data.status == "2"){
progress.setStatus("格式不对");
}else if(data.status == 3 || data.status == "3"){
progress.setStatus("文件超大");
}else if(data.status == 4 || data.status == "4"){
progress.setStatus("文件为空");
}else if(data.status == 5 || data.status == "6"){
progress.setStatus("路径不对");
}else{
progress.setStatus("上传失败");
}
progress.toggleCancel(false);
} catch (ex) {
this.debug(ex);
}
}
// 选择文件后 添加到 操作层中
function addReadyFileInfo(fileid,fileName,message){
var photoDiv='<div class="ke-inline-block ke-item" id="'+fileid+'">'
+'<div class="ke-inline-block ke-photo" style="height:80px; width:80px;">'
+'
'+' <span class="ke-delete"></span>'
+' <div class="ke-status">'
+' <div class="ke-progressbar" style="display: none;">'
+' <div class="ke-progressbar-bar">'
+' <div class="ke-progressbar-bar-inner"></div>'
+' </div>'
+' <div class="ke-progressbar-percent">0%</div>'
+' </div>'
+' <div class="ke-message">'+message+'</div>'
+' </div>'
+' </div>'
+' <div class="ke-name" alt="'+fileName+'">'+fileName+'</div>'
+'</div>';
$("#"+swfu.customSettings.photoContainer_Id).append(photoDiv);
$("#"+fileid).find(".ke-photo").bind("mouseover",photoMouseOver).bind("mouseout",photoMouseOut);
$("#"+fileid).find(".ke-delete").bind("click",function(){deleteFile(fileid)});
}
// 删除 单个文件
function deleteFile(fileId){
$("#"+fileId).remove();
swfu.cancelUpload(fileId,false);
}
// 单个 文件上传完
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.startUpload();
}
} catch (ex) {
this.debug(ex);
}
}
//上传的错误
function uploadError(file, errorCode, message) {
var message = "<font color='red'>文件上传出错!</font>";
var progress = new FileProgress(file);
var flag=false;
try {
switch (errorCode) {
case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
progress.setStatus("取消上传");
progress.toggleCancel(false);
break;
case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
progress.setStatus("停止上传");
progress.toggleCancel(true);
case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
progress.setStatus("文件超大");
progress.toggleCancel(false);
break;
default:
addErrorMsg(message,true);
break;
}
//addFileInfo(file.id,imageName);
} catch (ex3) {
this.debug(ex3);
}
}
// 根据 src 添加 图片
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);
}
}
/* ******************************************
* This event comes from the Queue Plugin
* ****************************************** */
function queueComplete(numFilesUploaded) {
//this.getStats().successful_uploads;
}
/* ******************************************
* FileProgress Object
* Control object for displaying file info
* ****************************************** */
function FileProgress(file) {
var fileID = file.id;
this.fileProgressWrapper = $("#"+file.id).find(".ke-status"); //document.getElementById(this.fileProgressID);
if (!this.fileProgressWrapper) {
fadeIn(this.fileProgressWrapper, 0);
}
}
FileProgress.prototype.setProgress = function (percentage) {
$(this.fileProgressWrapper).find(".ke-progressbar-bar-inner").css("width",percentage + "%");
$(this.fileProgressWrapper).find(".ke-progressbar-percent").text(percentage + "%");
};
FileProgress.prototype.setComplete = function () {
$(this.fileProgressWrapper).find(".ke-progressbar-bar-inner").css("width","");
};
FileProgress.prototype.setCancelled = function () {
$(this.fileProgressWrapper).find(".ke-progressbar-bar-inner").css("width","");
};
FileProgress.prototype.setStatus = function (status) {
$(this.fileProgressWrapper).find(".ke-message").text(status);
};
FileProgress.prototype.toggleCancel = function (show) {
if(typeof show =='undefined'){
$(this.fileProgressWrapper).find(".ke-progressbar").css("display", "none");
$(this.fileProgressWrapper).find(".ke-message").css("display","none";)
}else{
$(this.fileProgressWrapper).find(".ke-progressbar").css("display", show ? "block" : "none");
$(this.fileProgressWrapper).find(".ke-message").css("display", show ? "none" : "block");
}
};
//处理 ie 9 的兼容性 找到这个方法 修改下就可以了
swfuplaod.js
Java代码
// Private: getFlashHTML generates the object tag needed to embed the flash in to the document
SWFUpload.prototype.getFlashHTML = function () {
// Flash Satay object syntax: http://www.alistapart.com/articles/flashsatay
var classid = '';
if (KindEditor.IE && KindEditor.V > 8) {
classid = ' classid = "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"';
}
return ['<object id="', this.movieName, '"' + classid + ' type="application/x-shockwave-flash" data="', this.settings.flash_url, '" width="', this.settings.button_width, '" height="', this.settings.button_height, '" class="swfupload">',
'<param name="wmode" value="', this.settings.button_window_mode, '" />',
'<param name="movie" value="', this.settings.flash_url, '" />',
'<param name="quality" value="high" />',
'<param name="menu" value="false" />',
'<param name="allowScriptAccess" value="always" />',
'<param name="flashvars" value="' + this.getFlashVars() + '" />',
'</object>'].join("");
};
//简单的处理 文件上传
FileUploadServlet.java
Java代码
package com.sh.common;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Iterator;
import java.util.List;
import java.util.UUID;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import com.sun.org.apache.xml.internal.security.exceptions.Base64DecodingException;
import com.sun.org.apache.xml.internal.security.utils.Base64;
public class FileUploadServlet extends HttpServlet {
private static final int UPLOAD_SUCCSSS=0; // "上传文件成功！",
private static final int UPLOAD_FAILURE=1; // "上传文件失败！"),
private static final int UPLOAD_TYPE_ERROR=2; // "上传文件类型错误！"),
private static final int UPLOAD_OVERSIZE=3; // "上传文件过大！"),
private static final int UPLOAD_ZEROSIZE=4; // "上传文件为空！"),
private static final int UPLOAD_NOTFOUND=5; // "上传文件路径错误！")
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html; charset=UTF-8");
PrintWriter out=response.getWriter();
String rootPath = request.getParameter("rootPath");
String param = request.getParameter("param");
if(rootPath == null) rootPath = "";
rootPath = rootPath.trim();
if(rootPath.equals("")){
rootPath = this.getServletContext().getRealPath("");
}
//上传操作
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setHeaderEncoding("UTF-8");
try{
List items = upload.parseRequest(request);
if(null != items){
Iterator itr = items.iterator();
while(itr.hasNext()){
FileItem item = (FileItem)itr.next();
if(item.isFormField()){
continue;
}else{
//以当前精确到秒的日期为上传的文件的文件名
SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddkkmmss");
String path="/files";
File savedFile = new File(rootPath+path,item.getName());
item.write(savedFile);
out.print("{status:"+this.UPLOAD_SUCCSSS+",message:'"+path+"/"+item.getName()+"'}");
}
}
}
}catch(Exception e){
e.printStackTrace();
}
}
/**
* new文件名= 时间 + 全球唯一编号
* @param fileName old文件名
* @return new文件名
*/
private String generateFileName(String fileName) {
String uuid=UUID.randomUUID().toString();
int position = fileName.lastIndexOf(".");
String extension = fileName.substring(position);
return uuid + extension;
}
}
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