您的位置：首页 > 其它

webupload 上传插件-图片上传

2016-06-17 17:28 344 查看
一、遇到的问题

 1.选择图按钮生成的关键

      在实例化webuoloader时，通过pick属性，指明id确定

<div id="filePicker"></div>
<p>或将照片拖到这里，单次最多可选300张</p>
</div>

uploader = WebUploader.create({
pick: {
id: '#filePicker',
label: '点击选择图片'
}

})


 2.上传到服务器的配置关键

      上传的时候需要webuploader的swf文件以及上传服务器的url 

     

uploader = WebUploader.create({
   swf: '/test/js/Uploader.swf',//uploader.swf文件的位置
   server: '/test!uploadHeadPic',//上传的路径：服务器地址比如http://localhost:8080或者相对路径即方法的url

})


 3.structs拦截action的方式

   ssh框架 structs拦截action 比较

   <constantname="struts.action.extension"value="do,action,"></constant>需要struts2处理请求后缀，该属性默认值是action,即所有请求*.action由struts2处理。


*.jsp 一般和*.action同时配置，避免直接访问jsp页面时找不到

 /* 拦截所有的请求 当做action


 二、实现代码

1.html

<%@ page contentType="text/html;charset=UTF-8" language[/b]="java" %>
<html>
<head>
<title>WebUploader演示</title>
<link rel="stylesheet" type="text/css" href="/test/js/webuploader.css" />
<link rel="stylesheet" type="text/css" href="/test/pictureUp/style.css" />
</head>
<body>
<div id="wrapper">
<div id="container">
<!--头部，相册选择和格式选择-->
<div id="uploader">
<div class="queueList">
<div id="dndArea" class="placeholder">
<div id="filePicker"></div>
<p>或将照片拖到这里，单次最多可选300张</p>
</div>
</div>
<div class="statusBar" style="display:none;">
<div class="progress">
<span class="text">0%</span>
<span class="percentage"></span>
</div><div class="info"></div>
<div class="btns">
<div id="filePicker2"></div><div class="uploadBtn">开始上传</div>
</div>
</div>
</div>
</div>
</div>
<script type="text/javascript" src="/test/js/jquery.js"></script>
<script type="text/javascript" src="/test/js/webuploader.js"></script>
<script type="text/javascript" src="/test/pictureUp/upload.js"></script>
</body>
</html>

2.js代码  css代码（style.css和upload.js自己写）

/* ----------------Reset Css--------------------- */
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li,
fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure, footer, header, hgroup, menu, nav, section, summary,
time, mark, audio, video, input {
margin: 0;
padding: 0;
border: none;
outline: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}

html, body, form, fieldset, p, div, h1, h2, h3, h4, h5, h6 {
-webkit-text-size-adjust: none;
}

article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
display: block;
}

body {
font-family: arial, sans-serif;
}

ol, ul {
list-style: none;
}

blockquote, q {
quotes: none;
}

blockquote:before, blockquote:after, q:before, q:after {
content: '';
content: none;
}

ins {
text-decoration: none;
}

del {
text-decoration: line-through;
}

table {
border-collapse: collapse;
border-spacing: 0;
}

/* ------------ */
#wrapper {
width: 980px;
margin: 0 auto;

margin: 1em;
width: auto;
}

#container {
border: 1px solid #dadada;
color: #838383;
font-size: 12px;
margin-top: 10px;
background-color: #FFF;
}

#uploader .queueList {
margin: 20px;
}

.element-invisible {
position: absolute !important;
clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
clip: rect(1px, 1px, 1px, 1px);
}

#uploader .placeholder {
border: 3px dashed #e6e6e6;
min-height: 238px;
padding-top: 158px;
text-align: center;
background: url(./image.png) center 93px no-repeat;
color: #cccccc;
font-size: 18px;
position: relative;
}

#uploader .placeholder .webuploader-pick {
font-size: 18px;
background: #00b7ee;
border-radius: 3px;
line-height: 44px;
padding: 0 30px;
color: #fff;
display: inline-block;
margin: 20px auto;
cursor: pointer;
box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}

#uploader .placeholder .webuploader-pick-hover {
background: #00a2d4;
}

#uploader .placeholder .flashTip {
color: #666666;
font-size: 12px;
position: absolute;
width: 100%;
text-align: center;
bottom: 20px;
}

#uploader .placeholder .flashTip a {
color: #0785d1;
text-decoration: none;
}

#uploader .placeholder .flashTip a:hover {
text-decoration: underline;
}

#uploader .placeholder.webuploader-dnd-over {
border-color: #999999;
}

#uploader .placeholder.webuploader-dnd-over.webuploader-dnd-denied {
border-color: red;
}

#uploader .filelist {
list-style: none;
margin: 0;
padding: 0;
}

#uploader .filelist:after {
content: '';
display: block;
width: 0;
height: 0;
overflow: hidden;
clear: both;
}

#uploader .filelist li {
width: 110px;
height: 110px;
background: url(./bg.png) no-repeat;
text-align: center;
margin: 0 8px 20px 0;
position: relative;
display: inline;
float: left;
overflow: hidden;
font-size: 12px;
}

#uploader .filelist li p.log {
position: relative;
top: -45px;
}

#uploader .filelist li p.title {
position: absolute;
top: 0;
left: 0;
width: 100%;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
top: 5px;
text-indent: 5px;
text-align: left;
}

#uploader .filelist li p.progress {
position: absolute;
width: 100%;
bottom: 0;
left: 0;
height: 8px;
overflow: hidden;
z-index: 50;
}

#uploader .filelist li p.progress span {
display: none;
overflow: hidden;
width: 0;
height: 100%;
background: #1483d8 url(./progress.png) repeat-x;

-webit-transition: width 200ms linear;
-moz-transition: width 200ms linear;
-o-transition: width 200ms linear;
-ms-transition: width 200ms linear;
transition: width 200ms linear;

-webkit-animation: progressmove 2s linear infinite;
-moz-animation: progressmove 2s linear infinite;
-o-animation: progressmove 2s linear infinite;
-ms-animation: progressmove 2s linear infinite;
animation: progressmove 2s linear infinite;

-webkit-transform: translateZ(0);
}

@-webkit-keyframes progressmove {
0% {
background-position: 0 0;
}
100% {
background-position: 17px 0;
}
}

@-moz-keyframes progressmove {
0% {
background-position: 0 0;
}
100% {
background-position: 17px 0;
}
}

@keyframes progressmove {
0% {
background-position: 0 0;
}
100% {
background-position: 17px 0;
}
}

#uploader .filelist li p.imgWrap {
position: relative;
z-index: 2;
line-height: 110px;
vertical-align: middle;
overflow: hidden;
width: 110px;
height: 110px;

-webkit-transform-origin: 50% 50%;
-moz-transform-origin: 50% 50%;
-o-transform-origin: 50% 50%;
-ms-transform-origin: 50% 50%;
transform-origin: 50% 50%;

-webit-transition: 200ms ease-out;
-moz-transition: 200ms ease-out;
-o-transition: 200ms ease-out;
-ms-transition: 200ms ease-out;
transition: 200ms ease-out;
}

#uploader .filelist li img {
width: 100%;
}

#uploader .filelist li p.error {
background: #f43838;
color: #fff;
position: absolute;
bottom: 0;
left: 0;
height: 28px;
line-height: 28px;
width: 100%;
z-index: 100;
}

#uploader .filelist li .success {
display: block;
position: absolute;
left: 0;
bottom: 0;
height: 40px;
width: 100%;
z-index: 200;
background: url(./success.png) no-repeat right bottom;
}

#uploader .filelist div.file-panel {
position: absolute;
height: 0;
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0, startColorstr='#80000000', endColorstr='#80000000') \0;
background: rgba(0, 0, 0, 0.5);
width: 100%;
top: 0;
left: 0;
overflow: hidden;
z-index: 300;
}

#uploader .filelist div.file-panel span {
width: 24px;
height: 24px;
display: inline;
float: right;
text-indent: -9999px;
overflow: hidden;
background: url(./icons.png) no-repeat;
margin: 5px 1px 1px;
cursor: pointer;
}

#uploader .filelist div.file-panel span.rotateLeft {
background-position: 0 -24px;
}

#uploader .filelist div.file-panel span.rotateLeft:hover {
background-position: 0 0;
}

#uploader .filelist div.file-panel span.rotateRight {
background-position: -24px -24px;
}

#uploader .filelist div.file-panel span.rotateRight:hover {
background-position: -24px 0;
}

#uploader .filelist div.file-panel span.cancel {
background-position: -48px -24px;
}

#uploader .filelist div.file-panel span.cancel:hover {
background-position: -48px 0;
}

#uploader .statusBar {
height: 63px;
border-top: 1px solid #dadada;
padding: 0 20px;
line-height: 63px;
vertical-align: middle;
position: relative;
}

#uploader .statusBar .progress {
border: 1px solid #1483d8;
width: 198px;
background: #fff;
height: 18px;
position: relative;
display: inline-block;
text-align: center;
line-height: 20px;
color: #6dbfff;
position: relative;
margin-right: 10px;
}

#uploader .statusBar .progress span.percentage {
width: 0;
height: 100%;
left: 0;
top: 0;
background: #1483d8;
position: absolute;
}

#uploader .statusBar .progress span.text {
position: relative;
z-index: 10;
}

#uploader .statusBar .info {
display: inline-block;
font-size: 14px;
color: #666666;
}

#uploader .statusBar .btns {
position: absolute;
top: 10px;
right: 20px;
line-height: 40px;
}

#filePicker2 {
display: inline-block;
float: left;
}

#uploader .statusBar .btns .webuploader-pick,
#uploader .statusBar .btns .uploadBtn,
#uploader .statusBar .btns .uploadBtn.state-uploading,
#uploader .statusBar .btns .uploadBtn.state-paused {
background: #ffffff;
border: 1px solid #cfcfcf;
color: #565656;
padding: 0 18px;
display: inline-block;
border-radius: 3px;
margin-left: 10px;
cursor: pointer;
font-size: 14px;
float: left;
}

#uploader .statusBar .btns .webuploader-pick-hover,
#uploader .statusBar .btns .uploadBtn:hover,
#uploader .statusBar .btns .uploadBtn.state-uploading:hover,
#uploader .statusBar .btns .uploadBtn.state-paused:hover {
background: #f0f0f0;
}

#uploader .statusBar .btns .uploadBtn {
background: #00b7ee;
color: #fff;
border-color: transparent;
}

#uploader .statusBar .btns .uploadBtn:hover {
background: #00a2d4;
}

#uploader .statusBar .btns .uploadBtn.disabled {
pointer-events: none;
opacity: 0.6;
}

js

(function( $ ){
// 当domReady的时候开始初始化
$(function() {
var $wrap = $('#uploader'),

// 图片容器
$queue = $( '<ul class="filelist"></ul>' )
.appendTo( $wrap.find( '.queueList' ) ),

// 状态栏，包括进度和控制按钮
$statusBar = $wrap.find( '.statusBar' ),

// 文件总体选择信息。
$info = $statusBar.find( '.info' ),

// 上传按钮
$upload = $wrap.find( '.uploadBtn' ),

// 没选择文件之前的内容。
$placeHolder = $wrap.find( '.placeholder' ),

$progress = $statusBar.find( '.progress' ).hide(),

// 添加的文件数量
fileCount = 0,

// 添加的文件总大小
fileSize = 0,

// 优化retina, 在retina下这个值是2
ratio = window.devicePixelRatio || 1,

// 缩略图大小
thumbnailWidth = 110 * ratio,
thumbnailHeight = 110 * ratio,

// 可能有pedding, ready, uploading, confirm, done.
state = 'pedding',

// 所有文件的进度信息，key为file id
percentages = {},
// 判断浏览器是否支持图片的base64
isSupportBase64 = ( function() {
var data = new Image();
var support = true;
data.onload = data.onerror = function() {
if( this.width != 1 || this.height != 1 ) {
support = false;
}
}
data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
return support;
} )(),

// 检测是否已经安装flash，检测flash的版本
flashVersion = ( function() {
var version;

try {
version = navigator.plugins[ 'Shockwave Flash' ];
version = version.description;
} catch ( ex ) {
try {
version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
.GetVariable('$version');
} catch ( ex2 ) {
version = '0.0';
}
}
version = version.match( /\d+/g );
return parseFloat( version[ 0 ] + '.' + version[ 1 ], 10 );
} )(),

supportTransition = (function(){
var s = document.createElement('p').style,
r = 'transition' in s ||
'WebkitTransition' in s ||
'MozTransition' in s ||
'msTransition' in s ||
'OTransition' in s;
s = null;
return r;
})(),

// WebUploader实例
uploader;

if ( !WebUploader.Uploader.support('flash') && WebUploader.browser.ie ) {

// flash 安装了但是版本过低。
if (flashVersion) {
(function(container) {
window['expressinstallcallback'] = function( state ) {
switch(state) {
case 'Download.Cancelled':
alert('您取消了更新！')
break;

case 'Download.Failed':
alert('安装失败')
break;

default:
alert('安装已成功，请刷新！');
break;
}
delete window['expressinstallcallback'];
};

var swf = './expressInstall.swf';
// insert flash object
var html = '<object type="application/' +
'x-shockwave-flash" data="' +  swf + '" ';

if (WebUploader.browser.ie) {
html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
}

html += 'width="100%" height="100%" style="outline:0">'  +
'<param name="movie" value="' + swf + '" />' +
'<param name="wmode" value="transparent" />' +
'<param name="allowscriptaccess" value="always" />' +
'</object>';

container.html(html);

})($wrap);

// 压根就没有安转。
} else {
$wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
}

return;
} else if (!WebUploader.Uploader.support()) {
alert( 'Web Uploader 不支持您的浏览器！');
return;
}
// 实例化
uploader = WebUploader.create({
pick: {
id: '#filePicker',
label: '点击选择图片'
},
formData: {
uid: 123
},
dnd: '#dndArea',
paste: '#uploader',
swf: '/test/js/Uploader.swf',
chunked: false,
chunkSize: 512 * 1024,
server: '/test!upload',
// runtimeOrder: 'flash',
// accept: {
//     title: 'Images',
//     extensions: 'gif,jpg,jpeg,bmp,png',
//     mimeTypes: 'image/*'
// },
// 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
disableGlobalDnd: true,
fileNumLimit: 300,
fileSizeLimit: 200 * 1024 * 1024,    // 200 M
fileSingleSizeLimit: 50 * 1024 * 1024    // 50 M
});
// 拖拽时不接受 js, txt 文件。
uploader.on( 'dndAccept', function( items ) {
var denied = false,
len = items.length,
i = 0,
// 修改js类型
unAllowed = 'text/plain;application/javascript ';

for ( ; i < len; i++ ) {
// 如果在列表里面
if ( ~unAllowed.indexOf( items[ i ].type ) ) {
denied = true;
break;
}
}

return !denied;
});

// uploader.on('filesQueued', function() {
//     uploader.sort(function( a, b ) {
//         if ( a.name < b.name )
//           return -1;
//         if ( a.name > b.name )
//           return 1;
//         return 0;
//     });
// });

// 添加“添加文件”的按钮，
uploader.addButton({
id: '#filePicker2',
label: '继续添加'
});

uploader.on('ready', function() {
window.uploader = uploader;
});

// 当有文件添加进来时执行，负责view的创建
function addFile( file ) {
var $li = $( '<li id="' + file.id + '">' +
'<p class="title">' + file.name + '</p>' +
'<p class="imgWrap"></p>'+
'<p class="progress"><span></span></p>' +
'</li>' ),

$btns = $('<div class="file-panel">' +
'<span class="cancel">删除</span>' +
'<span class="rotateRight">向右旋转</span>' +
'<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ),
$prgress = $li.find('p.progress span'),
$wrap = $li.find( 'p.imgWrap' ),
$info = $('<p class="error"></p>'),

showError = function( code ) {
alert(code)
switch( code ) {
case 'exceed_size':
text = '文件大小超出';
break;

case 'interrupt':
text = '上传暂停';
break;

default:
text = '上传失败，请重试';
break;
}

$info.text( text ).appendTo( $li );
};

if ( file.getStatus() === 'invalid' ) {
showError( file.statusText );
} else {
// @todo lazyload
$wrap.text( '预览中' );
uploader.makeThumb( file, function( error, src ) {
var img;

if ( error ) {
$wrap.text( '不能预览' );
return;
}

if( isSupportBase64 ) {
img = $('<img src="'+src+'">');
$wrap.empty().append( img );
} else {
$.ajax('../../server/preview.php', {
method: 'POST',
data: src,
dataType:'json'
}).done(function( response ) {
if (response.result) {
img = $('<img src="'+response.result+'">');
$wrap.empty().append( img );
} else {
$wrap.text("预览出错");
}
});
}
}, thumbnailWidth, thumbnailHeight );

percentages[ file.id ] = [ file.size, 0 ];
file.rotation = 0;
}

file.on('statuschange', function( cur, prev ) {
if ( prev === 'progress' ) {
$prgress.hide().width(0);
} else if ( prev === 'queued' ) {
$li.off( 'mouseenter mouseleave' );
$btns.remove();
}

// 成功
if ( cur === 'error' || cur === 'invalid' ) {
console.log( file.statusText );
showError( file.statusText );
percentages[ file.id ][ 1 ] = 1;
} else if ( cur === 'interrupt' ) {
showError( 'interrupt' );
} else if ( cur === 'queued' ) {
percentages[ file.id ][ 1 ] = 0;
} else if ( cur === 'progress' ) {
$info.remove();
$prgress.css('display', 'block');
} else if ( cur === 'complete' ) {
$li.append( '<span class="success"></span>' );
}

$li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
});

$li.on( 'mouseenter', function() {
$btns.stop().animate({height: 30});
});

$li.on( 'mouseleave', function() {
$btns.stop().animate({height: 0});
});

$btns.on( 'click', 'span', function() {
var index = $(this).index(),
deg;

switch ( index ) {
case 0:
uploader.removeFile( file );
return;

case 1:
file.rotation += 90;
break;

case 2:
file.rotation -= 90;
break;
}

if ( supportTransition ) {
deg = 'rotate(' + file.rotation + 'deg)';
$wrap.css({
'-webkit-transform': deg,
'-mos-transform': deg,
'-o-transform': deg,
'transform': deg
});
} else {
$wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');
// use jquery animate to rotation
// $({
//     rotation: rotation
// }).animate({
//     rotation: file.rotation
// }, {
//     easing: 'linear',
//     step: function( now ) {
//         now = now * Math.PI / 180;

//         var cos = Math.cos( now ),
//             sin = Math.sin( now );

//         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
//     }
// });
}

});

$li.appendTo( $queue );
}

// 负责view的销毁
function removeFile( file ) {
var $li = $('#'+file.id);

delete percentages[ file.id ];
updateTotalProgress();
$li.off().find('.file-panel').off().end().remove();
}

function updateTotalProgress() {
var loaded = 0,
total = 0,
spans = $progress.children(),
percent;

$.each( percentages, function( k, v ) {
total += v[ 0 ];
loaded += v[ 0 ] * v[ 1 ];
} );

percent = total ? loaded / total : 0;

spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
updateStatus();
}

function updateStatus() {
var text = '', stats;

if ( state === 'ready' ) {
text = '选中' + fileCount + '张图片，共' +
WebUploader.formatSize( fileSize ) + '。';
} else if ( state === 'confirm' ) {
stats = uploader.getStats();
if ( stats.uploadFailNum ) {
text = '已成功上传' + stats.successNum+ '张照片至XX相册，'+
stats.uploadFailNum + '张照片上传失败，<a class="retry" href="#">重新上传</a>失败图片或<a class="ignore" href="#">忽略</a>'
}

} else {
stats = uploader.getStats();
text = '共' + fileCount + '张（' +
WebUploader.formatSize( fileSize )  +
'），已上传' + stats.successNum + '张';

if ( stats.uploadFailNum ) {
text += '，失败' + stats.uploadFailNum + '张';
}
}

$info.html( text );
}

function setState( val ) {
var file, stats;

if ( val === state ) {
return;
}

$upload.removeClass( 'state-' + state );
$upload.addClass( 'state-' + val );
state = val;

switch ( state ) {
case 'pedding':
$placeHolder.removeClass( 'element-invisible' );
$queue.hide();
$statusBar.addClass( 'element-invisible' );
uploader.refresh();
break;

case 'ready':
$placeHolder.addClass( 'element-invisible' );
$( '#filePicker2' ).removeClass( 'element-invisible');
$queue.show();
$statusBar.removeClass('element-invisible');
uploader.refresh();
break;

case 'uploading':
$( '#filePicker2' ).addClass( 'element-invisible' );
$progress.show();
$upload.text( '暂停上传' );
break;

case 'paused':
$progress.show();
$upload.text( '继续上传' );
break;

case 'confirm':
$progress.hide();
$( '#filePicker2' ).removeClass( 'element-invisible' );
$upload.text( '开始上传' );

stats = uploader.getStats();
if ( stats.successNum && !stats.uploadFailNum ) {
setState( 'finish' );
return;
}
break;
case 'finish':
stats = uploader.getStats();
if ( stats.successNum ) {
alert( '上传成功' );
} else {
// 没有成功的图片，重设
state = 'done';
location.reload();
}
break;
}

updateStatus();
}

uploader.onUploadProgress = function( file, percentage ) {
var $li = $('#'+file.id),
$percent = $li.find('.progress span');

$percent.css( 'width', percentage * 100 + '%' );
percentages[ file.id ][ 1 ] = percentage;
updateTotalProgress();
};

uploader.onFileQueued = function( file ) {
fileCount++;
fileSize += file.size;

if ( fileCount === 1 ) {
$placeHolder.addClass( 'element-invisible' );
$statusBar.show();
}

addFile( file );
setState( 'ready' );
updateTotalProgress();
};

uploader.onFileDequeued = function( file ) {
fileCount--;
fileSize -= file.size;

if ( !fileCount ) {
setState( 'pedding' );
}

a74c
removeFile( file );
updateTotalProgress();

};

uploader.on( 'all', function( type ) {
var stats;
switch( type ) {
case 'uploadFinished':
setState( 'confirm' );
break;

case 'startUpload':
setState( 'uploading' );
break;

case 'stopUpload':
setState( 'paused' );
break;

}
});

uploader.onError = function( code ) {
alert( 'Eroor: ' + code );
};

$upload.on('click', function() {
if ( $(this).hasClass( 'disabled' ) ) {
return false;
}

if ( state === 'ready' ) {
uploader.upload();
} else if ( state === 'paused' ) {
uploader.upload();
} else if ( state === 'uploading' ) {
uploader.stop();
}
});

$info.on( 'click', '.retry', function() {
uploader.retry();
} );

$info.on( 'click', '.ignore', function() {
alert( 'todo' );
} );

$upload.addClass( 'state-' + state );
updateTotalProgress();
});

})( jQuery );

3.后台接受

public class UploadAction extends ActionSupport {
//接收文件 名称需要和表单name名称一致
private File image;
//上传多个图片文件
private File[] images;
//上传文件类型[image]为表单name名称,ContentType为固定写法
private String imageContentType;
private String[] imagesContentType;
//上传文件名称[image]为表单name名称,FileName为固定写法
private String imageFileName;
private String[] imagesFileName;

//上传一个文件
public String upload(){
//将长传的文件存储到images文件夹下,首先根据images名称得到具体路径
String realPath = ServletActionContext.getServletContext().getRealPath("images");
File file = new File(new File(realPath),imageFileName);
//如果输入为空 没选择图片的话
if(image != null){
//判断文件夹存不存在
if(!file.getParentFile().exists()){
file.getParentFile().mkdir();
//创建一个文件夹
}
try {
FileUtils.copyFile(image, file);
super.addActionError("上传成功");
} catch (IOException e) {
super.addActionError("上传失败");
e.printStackTrace();
}
}
return SUCCESS;
}
//上传多个文件
public String manyUpload(){
//将长传的文件存储到images文件夹下,首先根据images名称得到具体路径
String realPath = ServletActionContext.getServletContext().getRealPath("images");
System.out.println(realPath);
File file =null;
if(images != null){
try {
for (int i = 0; i <images.length ; i++) {
file = new File(new File(realPath),imagesFileName[i]);
FileUtils.copyFile(images[i], file);
}
super.addActionError("上传成功");
} catch (IOException e) {
super.addActionError("上传失败");
e.printStackTrace();
}
}
return SUCCESS;
}

public File getImage() {
return image;
}
public void setImage(File image) {
this.image = image;
}
public String getImageContentType() {
return imageContentType;
}
public void setImageContentType(String imageContentType) {
this.imageContentType = imageContentType;
}
public String getImageFileName() {
return imageFileName;
}
public void setImageFileName(String imageFileName) {
this.imageFileName = imageFileName;
}
public File[] getImages() {
return images;
}
public void setImages(File[] images) {
this.images = images;
}
public String[] getImagesContentType() {
return imagesContentType;
}
public void setImagesContentType(String[] imagesContentType) {
this.imagesContentType = imagesContentType;
}
public String[] getImagesFileName() {
return imagesFileName;
}
public void setImagesFileName(String[] imagesFileName) {
this.imagesFileName = imagesFileName;
}

}

  
                                            

                                        

                        
                        内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 点击这里给我发消息 
                    

                    

                    

                        

                         标签： 
                                                

                        

                    


                

            


            

                
相关文章推荐

                

                
            

        

        

            

            
            

                

                    
新的分享

                    

                        
                    

                

            


            

                

                    
章节导航