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本文實例為大家分享了jquery實現動態添加附件的具體代碼，供大家參考，具體內容如下
創建HTML頁面
項目中實現的原代碼，無刪減直接貼上。具體請參考“添加附件”按鈕相關操作。
注意引入：cardRansomManage.js，ajaxfileupload.js.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<#include "../ftl/includes/easyui.ftl"/>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>賬戶管理-預付卡贖回管理</title>
</head>
<body class="easyui-layout" fit="true">
<div class="w_960 mg_auto">
<div class="over_f_h">
<div class="mg_t_10 font_13">
當前位置：預付費卡綜合管理系統 > 預付卡贖回管理 >
<a class="color_000 hover_nav_link" href="${rc.contextPath}/ransom/apply" rel="external nofollow" >贖回申請</a> >
</div>
<form id="editForm" method="post" enctype="multipart/form-data">
<input type="hidden" name="isLoginUser" id="isLoginUser" value=${isLoginUser?string} />
<input type="hidden" name="orderStatus" id="orderStatus" value='${order.orderStatus!}' />
<div class="mg_t_10 bd_ccc pd_b_20">
<div class="h_30 bg_fff4c8 font_w_bold font_13 line_2p4em pd_l_10 bd_b_ccc">贖回申請</div>
<div id="toolbar" class="datagrid-toolbar" >
<a id="btnAddfile" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="javascript:addFile();">增加附件</a>
<a id="btnSave" class="easyui-linkbutton" iconCls="icon-save" plain="true" onclick="javascript:saveFile();">上傳附件并保存</a>
<@verifyRes res="/ransom/ransomInvalid?Apply">
<a id="btnSubmit" class="easyui-linkbutton" iconCls="icon-ok" plain="true" onclick="javascript:submitApply();">申 請</a>
</@verifyRes>
<@verifyRes res="/ransom/ransomInvalid?Audit">
<a id="btnAudit" class="easyui-linkbutton" iconCls="icon-ok" plain="true" onclick="javascript:submitAudit();">審 核</a>
<a id="btnRefuse" class="easyui-linkbutton" iconCls="icon-ok" plain="true" onclick="javascript:submitRefuse();">駁 回</a>
</@verifyRes>
<div class="clear"></div>
</div>
<div>
<div class="mg_auto mg_t_30 pd_l_30">
<div class="f_l w_350">
<div class="f_l mg_t_2 w_120 a_r val_input">贖回單號：</div>
<input type="text" name="orderNo" id="orderNo" value='${order.orderNo!}' disabled="disabled" class="f_l show h_20 line_1p7em w_150 required"/>
<div class="clear"></div>
</div>
<div class="clear"></div>
</div>
<div class="mg_auto mg_t_10 pd_l_30">
<div class="f_l w_350">
<div class="f_l mg_t_2 w_120 a_r val_input">申請人：</div>
<input type="text" name="createName" id="createName" value='${order.createName}' disabled="disabled" class="f_l show h_20 line_1p7em w_150 required"/>
<div class="clear"></div>
</div>
<div class="clear"></div>
</div>
<div class="mg_auto mg_t_10 pd_l_30">
<div class="f_l w_350">
<div class="f_l mg_t_2 w_120 a_r val_input">表單狀態：</div>
<select class="f_l show h_20 line_1p7em required w_150" id="orderStatus" name="orderStatus" disabled="disabled">
<option class="h_20" value="" >--全部--</option>
<#if ransomStatus??>
<#list ransomStatus as es>
<option value='${es.value!}'
<#if order.orderStatus?exists><#if order.orderStatus==es.value> selected="selected"</#if></#if>>${es.chName!""}</option>
</#list>
</#if>
</select>
<div class="clear"></div>
</div>
<div class="clear"></div>
</div>
<div id="freshdiv"></div>
<div class="mdiv" id="mdiv">
<#if order.attachment??>
<#list order.attachment as attach>
<div class="mg_auto mg_t_10 pd_l_30" >
<div class="f_l w_600">
<div class="f_l mg_t_2 w_120 a_r val_input">附件(已上傳)：</div>
<input type="text" name="attach" value="${attach.attachmentPath}" disabled="disabled" class="f_l show h_20 line_1p7em w_150 required"/>
<a href="#" rel="external nofollow" rel="external nofollow" name="rmlinkattach" onclick="rmlinkAttach('${attach.attachmentId}',this)" >刪除</a>
<a href="javascript:void(0)" rel="external nofollow" onclick="downLoadFile('${attach.attachmentId}')">下載</a>
<div class="clear"></div>
</div>
<div class="clear"></div>
</div>
</#list>
</#if>
</div>
</div>
</div>
</form>
</div>
</div>
<div id="fileTemplate" >
<div class="mg_auto mg_t_10 pd_l_30">
<div class="f_l w_600">
<div class="f_l mg_t_2 w_120 a_r val_input">附件：</div>
<input type="file" name="uploadfiles0" class="f_l show h_20 line_1p7em w_220 required" />
<a href="#" rel="external nofollow" rel="external nofollow" name="rmlink0" >刪除 </a>
<div class="clear"></div>
</div>
<div class="clear"></div>
</div>
</div>
<form action="" id="downloadform" method="post">
<input type="hidden" name="attachmentId" id="attachmentId"/>
</form>
<div id="loading" class="pos_ab pd_b_30 font_15 font_msyh bd_2_4979e8 bd_radius_5 bg_fff color_333333 z_index_600 hide" >
<div class="f_c show w_50 h_50 vlbc_customerAdd mg_l_120 mg_r_120 mg_t_24"></div>
<div class="mg_t_24 mg_l_60 mg_r_60">正在處理，請稍后...</div>
</div>
<script type="text/javascript" charset="utf-8" src="${rc.contextPath}/js/ransom/cardRansomManage.js"></script>
<script type="text/javascript" charset="utf-8" src="${rc.contextPath}/js/card/ajaxfileupload.js"></script>
</body>
</html>
創建Javascript庫
cardRansomManage.js
//設置面罩的z-index,打開進度條
function setPopupZ_index() {
$("#popupDiv_bgDiv_1").css("z-index", "550");
bcd_openPopUpDailog(300, 'loading'); //進度條
}
/**
* 編輯、查看、提交頁面 資源控制
*/
var $fileMixSize = 10; //允許上傳附件數
var $fileCurSize = 0; //已上傳并保存附件數
var $fileSize = 0; //當前新增附件操作次數
var $delFiles =""; //記錄 刪除已保存附件
var $flag = 0; //數據校驗 0:附件無效; 1:無附件提交; 2:附件有效
$(document).ready(function(){
$fileCurSize = $("input[name='attach']").size();
initialResource();
bindListener();
});
function initialResource(){
var orderStatus = $("#orderStatus").val();
var isLoginUser = $("#isLoginUser").val();
var btnSubmit = $("#btnSubmit");
var btnAudit = $("#btnAudit");
var btnRefuse = $("#btnRefuse");
if(isLoginUser=="true"){
if(orderStatus==0||orderStatus==3){//草稿、駁回狀態
// addFile();
if(btnAudit != undefined){
btnAudit.hide();
}
if(btnRefuse != undefined){
btnRefuse.hide();
}
}else {//orderStatus:1(申請),2(審核)
$("a[name='rmlinkattach']").remove();
$("#toolbar").remove();
}
}else{
if(orderStatus!=1){
$("#toolbar").remove();
$("a[name='rmlinkattach']").remove();
}else{
$("#btnSave").hide();
$("a[name='rmlinkattach']").hide();
if(btnSubmit != undefined){
btnSubmit.hide();
}
}
}
}
function doCloseFunction(){
window.location.href="query?orderDetail&orderNo=" rel="external nofollow" ;
}
function addFile(){
$fileSize = $("[name='uploadfiles']").size();
if($fileSize < $fileMixSize - $fileCurSize){
var $fileTemple=$("#fileTemplate >div").clone();
var tid = "uploadfiles0"+new Date().getTime();
$fileTemple.find(":file").attr("id",tid);
$fileTemple.find(":file").attr("name","uploadfiles");
$fileTemple.find("a").attr("name","rmlink");
$("#mdiv").append($fileTemple);
bindListener();
$fileSize++;
}else{
alertDiv.create("alertDiv","最大上傳文件數為："+$fileMixSize+".");
}
}
function saveFile(){
operSubmit("0");
$delFiles = "";
}
function submitApply(){
operSubmit("1");
$delFiles ="";
}
function submitAudit(){
var orderStatus = $("#orderStatus").val();
//審核人：只允許處理審核狀態的贖回單
if(orderStatus==1){
$.messager.confirm('請確認', '您要批準此贖回申請單？', function(r) {
if(r){
operSubmit("2"); //審批通過
}
});
$delFiles ="";
}else{
alertDiv.create("alertDiv","贖回單當前狀態，不允許提交！");
}
}
function submitRefuse(){
var orderStatus = $("#orderStatus").val();
//審核人：只允許處理審核狀態的贖回單
if(orderStatus==1){
$.messager.confirm('請確認', '您要駁回此贖回申請單？', function(r) {
if(r){
operSubmit("3"); //駁回
}
});
}else{
alertDiv.create("alertDiv","贖回單當前狀態，不允許提交！");
}
}
function downLoadFile(attachmentId){
$('#attachmentId').val(attachmentId);
$('#downloadform').attr('action', 'downLoad');
$("#downloadform").submit();
}
function bindListener(){
$("a[name=rmlink]").unbind().click(function(){
$(this).parent().parent().remove();
$fileSize--;
})
}
function rmlinkAttach(attach, obj){
$.messager.confirm('請確認', '您要刪除當前所選項目？', function(r) {
if(r){
$delFiles += ""+attach +",";
$fileCurSize -=1;
$(obj).parent().parent().remove();
}
});
}
//處理查詢返回的信息
function callBack(order) {
var html = "";
var orderStatus = order.orderStatus;
//var orderStatus = record['record'].orderStatus;
$("#orderStatus").val(orderStatus);
$("#mdiv").empty();//清空以前的數據
$("#freshdiv").empty();
$(order.attachment).each(
function(i, attach) {
html += "<div class='mg_auto mg_t_10 pd_l_30' style='disabled:true'>";
html += " <div class='f_l w_600'>";
html += " <div class='f_l mg_t_2 w_120 a_r val_input'>附件(已上傳)：</div>";
html += " <input type='text' name='attach' value=" + attach.attachmentPath + " disabled='disabled' class='f_l show h_20 line_1p7em w_150 required'/>  ";
if(orderStatus==0||orderStatus==3){
html += " <a href='#' name='rmlinkattach' onclick='rmlinkAttach(" + attach.attachmentId + ",this)' style='color:red'>刪除</a>";
}
html += " <a href='javascript:void(0)' onclick='downLoadFile(" + attach.attachmentId + ")'>下載</a>";
html += " <div class='clear'></div>";
html += " </div>";
html += " <div class='clear'></div>";
html += "</div>";
});
var $container = $("#freshdiv");
$container.append(html);//追加新的數據
}
function refreshRes(order,orderStatusName){
$("#orderNo").val(order.orderNo);
$("#orderStatus").val(order.orderStatus);
$("#orderStatus option[value='"+order.orderStatus+"']").attr("selected","selected");
initialResource();
//$.post("query?Detail",order,callBack, "json");
callBack(order)
$fileCurSize = $("input[name='attach']").size();
}
function operSubmit(status){
validateUploadfiles();
if($flag==2){
var order = {
orderNo: $("#orderNo").val(),
orderStatus: status,
attachments: $delFiles
};
fileupload("save",order,"query?orderDetail&orderNo=");
}else if($flag==1){
var order = {
orderNo: $("#orderNo").val(),
orderStatus: status,
attachments: $delFiles
};
$.post("save?unUpload", order,
function(data){
if (data.success) {
refreshRes(data['order']);
alertDiv.create("alertDiv", data.obj);
} else {
alertDiv.create("alertDiv", data.obj);
}
}, "json");
}else{
alertDiv.create("alertDiv","附件不能為空，請添加有效附件！");
}
}
function validateUploadfiles(){
var files = $("input[name='uploadfiles']");
if(files.size()>0){
$.each(files,function(i, file){
if(file.value==undefined || file.value==""){
alertDiv.create("alertDiv","新增附件不能為空，請上傳！");
$flag = 0;
}else{
$flag = 2;
}
});
}else{
$flag=1;
}
}
function fileupload(url,order,successUrl){
var files = $("input[name='uploadfiles']");
var uploadfiles = [];
$.each(files,function(i, file){
if(file.value!=undefined || file.value!=""){
uploadfiles.push(files[i].id)
}
});
$.ajaxFileUpload({
url: url,
secureuri : false,
type: 'post',
dataType: "json",
fileElementId: uploadfiles,
data: order,
beforeSend: function() {
setPopupZ_index();
},
success: function(result) {
if (result.success) {
refreshRes(result['order']);
alertDiv.create("alertDiv", result.obj);
} else {
alertDiv.create("alertDiv", result.obj);
}
},
error: function(result) {
alertDiv.create("alertDiv", "贖回申請信息出錯，請稍后重試！");
},
complete: function() {
//$("#btnsave").removeAttr("disabled");
}
});
}
ajaxfileupload.js
jQuery.extend({
handleError: function( s, xhr, status, e ) {
// If a local callback was specified, fire it
if ( s.error ) {
s.error.call( s.context || s, xhr, status, e );
}
// Fire the global callback
if ( s.global ) {
(s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] );
}
},
createUploadIframe: function(id, uri)
{
//create frame
var frameId = 'jUploadFrame' + id;
var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" ';
if(window.ActiveXObject)
{
if(typeof uri== 'boolean'){
iframeHtml += ' src="' + 'javascript:false' + '"';
}
else if(typeof uri== 'string'){
iframeHtml += ' src="' + uri + '"';
}
}
iframeHtml += ' />';
jQuery(iframeHtml).appendTo(document.body);
return jQuery('#' + frameId).get(0);
},
createUploadForm: function(id, fileElementId, data)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = jQuery('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
if(data)
{
for(var i in data)
{
jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form);
}
}
if(typeof(fileElementId) == 'string'){
fileElementId = [fileElementId];
}
for (var i = 0; i < fileElementId.length; i ++) {
var oldElement = jQuery('#' + fileElementId[i]);
var newElement = jQuery(oldElement).clone();
jQuery(oldElement).attr('id', fileId);
jQuery(oldElement).before(newElement);
jQuery(oldElement).appendTo(form);
}
// var oldElement = jQuery('#' + fileElementId);
// var newElement = jQuery(oldElement).clone();
// jQuery(oldElement).attr('id', fileId);
// jQuery(oldElement).before(newElement);
// jQuery(oldElement).appendTo(form);
//set attributes
jQuery(form).css('position', 'absolute');
jQuery(form).css('top', '-1200px');
jQuery(form).css('left', '-1200px');
jQuery(form).appendTo('body');
return form;
},
ajaxFileUpload: function(s) {
// TODO introduce global settings, allowing the client to modify them for all requests, not only timeout
s = jQuery.extend({}, jQuery.ajaxSettings, s);
var id = new Date().getTime()
var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=='undefined'?false:s.data));
var io = jQuery.createUploadIframe(id, s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
{
jQuery.event.trigger( "ajaxStart" );
}
var requestDone = false;
// Create the request object
var xml = {}
if ( s.global )
jQuery.event.trigger("ajaxSend", [xml, s]);
// Wait for a response to come back
var uploadCallback = function(isTimeout)
{
var io = document.getElementById(frameId);
try
{
if(io.contentWindow)
{
xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;
}else if(io.contentDocument)
{
xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
}
}catch(e)
{
jQuery.handleError(s, xml, null, e);
}
if ( xml || isTimeout == "timeout")
{
requestDone = true;
var status;
try {
status = isTimeout != "timeout" ? "success" : "error";
// Make sure that the request was successful or notmodified
if ( status != "error" )
{
// process the data (runs the xml through httpData regardless of callback)
var data = jQuery.uploadHttpData( xml, s.dataType );
// If a local callback was specified, fire it and pass it the data
if ( s.success )
s.success( data, status );
// Fire the global callback
if( s.global )
jQuery.event.trigger( "ajaxSuccess", [xml, s] );
} else
jQuery.handleError(s, xml, status);
} catch(e)
{
status = "error";
jQuery.handleError(s, xml, status, e);
}
// The request was completed
if( s.global )
jQuery.event.trigger( "ajaxComplete", [xml, s] );
// Handle the global AJAX counter
if ( s.global && ! --jQuery.active )
jQuery.event.trigger( "ajaxStop" );
// Process result
if ( s.complete )
s.complete(xml, status);
jQuery(io).unbind()
setTimeout(function()
{ try
{
jQuery(io).remove();
jQuery(form).remove();
} catch(e)
{
jQuery.handleError(s, xml, null, e);
}
}, 100)
xml = null
}
}
// Timeout checker
if ( s.timeout > 0 )
{
setTimeout(function(){
// Check to see if the request is still happening
if( !requestDone ) uploadCallback( "timeout" );
}, s.timeout);
}
try
{
var form = jQuery('#' + formId);
jQuery(form).attr('action', s.url);
jQuery(form).attr('method', 'POST');
jQuery(form).attr('target', frameId);
if(form.encoding)
{
jQuery(form).attr('encoding', 'multipart/form-data');
}
else
{
jQuery(form).attr('enctype', 'multipart/form-data');
}
jQuery(form).submit();
} catch(e)
{
jQuery.handleError(s, xml, null, e);
}
jQuery('#' + frameId).load(uploadCallback );
return {abort: function () {}};
},
uploadHttpData: function( r, type ) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// If the type is "script", eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object, if JSON is used.
if ( type == "json" )
data = r.responseText;
var start = data.indexOf(">");
if(start != -1) {
var end = data.indexOf("<", start + 1);
if(end != -1) {
data = data.substring(start + 1, end);
}
}
eval( "data = " + data );
// evaluate scripts within html
if ( type == "html" )
jQuery("<div>").html(data).evalScripts();
return data;
}
})
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持億速云。
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