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MyJsp.jsp
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MyJsp.jsp
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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page contentType="text/html;charset=UTF-8" %>
<%@ include file="/webpage/include/taglib.jsp"%>
<html>
<head>
<title>My JSP 'MyJsp.jsp' starting page</title>
<script type="text/javascript" src="${pageContext.request.contextPath}/static/webuploader/jquery-1.10.2.min.js"></script>
<script src="${pageContext.request.contextPath}/static/webuploader/md5.js" type="text/javascript" charset="utf-8"></script>
<script src="${pageContext.request.contextPath}/static/webuploader/webuploader.js" type="text/javascript" charset="utf-8"></script>
<link rel="stylesheet" href="${pageContext.request.contextPath}/static/webuploader/webuploader.css" />
<style type="text/css">
.itemDel, .itemStop, .itemUpload{
margin-left: 15px;
color: blue;
cursor: pointer;
}
#theList{
width: 80%;
min-height: 100px;
border: 1px solid red;
}
#theList .itemStop{
display: none;
}
</style>
</head>
<body>
<div id="uploader">
<ul id="theList"></ul>
<div id="picker">选择文件</div>
</div>
<script type="text/javascript">
var userid = "chenzhao";
var userInfo = {userId:userid, md5:""}; //用户会话信息
var chunkSize = 10*1024 * 1024; //分块大小
var uniqueFileName = null; //文件唯一标识符
var md5Mark = null;
WebUploader.Uploader.register({
"before-send-file": "beforeSendFile"
, "before-send": "beforeSend"
, "after-send-file": "afterSendFile"
}, {
beforeSendFile: function(file){
//秒传验证
//
var task = new $.Deferred();
var start = new Date().getTime();
(new WebUploader.Uploader()).md5File(file, 0, 10*1024*1024).progress(function(percentage){
console.log(percentage);
}).then(function(val){
console.log("总耗时: "+((new Date().getTime()) - start)/1000);
md5Mark = val;
userInfo.md5 = val;
$.ajax({
type: "POST"
, url: "${ctx}/webUp/check.do"
, data: {
status: "md5Check"
, md5: val
}
, cache: false
, timeout: 1000 //todo 超时的话，只能认为该文件不曾上传过
, dataType: "json"
}).then(function(data, textStatus, jqXHR){
//console.log(data);
if(data.ifExist){ //若存在，这返回失败给WebUploader，表明该文件不需要上传
task.reject();
uploader.skipFile(file);
file.path = data.path;
UploadComlate(file);
}else{
task.resolve();
//拿到上传文件的唯一名称，用于断点续传
uniqueFileName = md5(''+userInfo.userId+file.name+file.type+file.lastModifiedDate+file.size);
}
}, function(jqXHR, textStatus, errorThrown){ //任何形式的验证失败，都触发重新上传
task.resolve();
//拿到上传文件的唯一名称，用于断点续传
uniqueFileName = md5(''+userInfo.userId+file.name+file.type+file.lastModifiedDate+file.size);
});
});
return $.when(task);
}
, beforeSend: function(block){
//分片验证是否已传过，用于断点续传
var task = new $.Deferred();
$.ajax({
type: "POST"
, url:"${ctx}/webUp/check.do"
, data: {
status: "chunkCheck"
, name: uniqueFileName
, chunkIndex: block.chunk
, size: block.end - block.start
}
, cache: false
, timeout: 1000 //todo 超时的话，只能认为该分片未上传过
, dataType: "json"
}).then(function(data, textStatus, jqXHR){
if(data.ifExist){ //若存在，返回失败给WebUploader，表明该分块不需要上传
task.reject();
}else{
task.resolve();
}
}, function(jqXHR, textStatus, errorThrown){ //任何形式的验证失败，都触发重新上传
task.resolve();
});
return $.when(task);
}
, afterSendFile: function(file){
var chunksTotal = 0;
if((chunksTotal = Math.ceil(file.size/chunkSize)) > 1){
// 合并请求
var task = new $.Deferred();
$.ajax({
type: "POST"
, url: "${ctx}/webUp/check.do"
, data: {
status: "chunksMerge"
, name: uniqueFileName //临时文件名，唯一
, chunks: chunksTotal
, ext: file.name //真实文件名
, md5: md5Mark
}
, cache: false
, dataType: "json"
}).then(function(data, textStatus, jqXHR){
// todo 检查响应是否正常
task.resolve();
file.path = data.path;
UploadComlate(file);
}, function(jqXHR, textStatus, errorThrown){
task.reject();
});
return $.when(task);
}else{
UploadComlate(file);
}
}
});
var uploader = WebUploader.create({
swf: "${pageContext.request.contextPath}/static/webuploader-0.1.5/Uploader.swf",
server: "${ctx}/webUp/fileUpload.do",
pick: "#picker",
multiple:true,
//resize: false,
dnd: "#theList",
//paste: document.body,
//disableGlobalDnd: true,
thumb: {
width: 100
, height: 100
, quality: 70
, allowMagnify: true
, crop: true
//, type: "image/jpeg"
},
// , compress: {
// quality: 90
// , allowMagnify: false
// , crop: false
// , preserveHeaders: true
// , noCompressIfLarger: true
// ,compressSize: 100000
// }
compress: false,
prepareNextFile: true,
chunked: true,
chunkSize: chunkSize,
threads: true,
formData: function(){return $.extend(true, {}, userInfo);},
fileNumLimit: 1,
fileSingleSizeLimit: 10 * 1024 * 1024 * 1024,
duplicate: true
});
uploader.on("fileQueued", function(file){
$("#theList").append('<li id="'+file.id+'">' +
'<img /><span>'+file.name+'</span><span class="itemUpload">上传</span><span class="itemStop">暂停</span><span class="itemDel">删除</span>' +
'<div class="percentage"></div>' +
'</li>');
var $img = $("#" + file.id).find("img");
uploader.makeThumb(file, function(error, src){
if(error){
$img.replaceWith("<span>不能预览</span>");
}
$img.attr("src", src);
});
});
$("#theList").on("click", ".itemUpload", function(){
uploader.upload();
//"上传"-->"暂停"
$(this).hide();
$(".itemStop").show();
});
$("#theList").on("click", ".itemStop", function(){
uploader.stop(true);
//"暂停"-->"上传"
$(this).hide();
$(".itemUpload").show();
});
//todo 如果要删除的文件正在上传（包括暂停），则需要发送给后端一个请求用来清除服务器端的缓存文件
$("#theList").on("click", ".itemDel", function(){
uploader.removeFile($(this).parent().attr("id")); //从上传文件列表中删除
$(this).parent().remove(); //从上传列表dom中删除
});
uploader.on("uploadProgress", function(file, percentage){
$("#" + file.id + " .percentage").text(percentage * 100 + "%");
});
function UploadComlate(file){
console.log(file);
$("#" + file.id + " .percentage").text("上传完毕");
$(".itemStop").hide();
$(".itemUpload").hide();
$(".itemDel").hide();
}
</script>
</body>
</html>