本文实例为大家分享了jquery实现动态添加附件的具体代码,供大家参考,具体内容如下

创建HTML页面

项目中实现的原代码,无删减直接贴上。具体请参考“添加附件”按钮相关操作。
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>账户管理-预付卡赎回管理</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">
    当前位置:预付费卡综合管理系统&nbsp;&gt;&nbsp;预付卡赎回管理&nbsp;&gt;&nbsp;
    <a class="color_000 hover_nav_link" href="${rc.contextPath}/ransom/apply" rel="external nofollow" >赎回申请</a>&nbsp;&gt;&nbsp;
   </div>
   <form id="editForm" method="post" enctype="multipart/form-data">
    <input type="hidden" name="isLoginUser" id="isLoginUser" value=${isLoginUser"hidden" name="orderStatus" id="orderStatus" value='${order.orderStatus!}' />
    <div class="mg_t_10 bd_ccc pd_b_20">
     <div class="h_30 bg_fff4c8 font_w_bold font_13 line_2p4em pd_l_10 bd_b_ccc">赎回申请</div>
     <div id="toolbar" class="datagrid-toolbar" style="height: auto;">
      <a id="btnAddfile" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="javascript:addFile();">增加附件</a>
      <a id="btnSave" class="easyui-linkbutton" iconCls="icon-save" plain="true" onclick="javascript:saveFile();">上传附件并保存</a>
      <@verifyRes res="/ransom/ransomInvalid">
      <a id="btnSubmit" class="easyui-linkbutton" iconCls="icon-ok" plain="true" onclick="javascript:submitApply();">申&nbsp;&nbsp;&nbsp;&nbsp;请</a>
      </@verifyRes>
      <@verifyRes res="/ransom/ransomInvalid">
      <a id="btnAudit" class="easyui-linkbutton" iconCls="icon-ok" plain="true" onclick="javascript:submitAudit();">审&nbsp;&nbsp;&nbsp;&nbsp;核</a>
      <a id="btnRefuse" class="easyui-linkbutton" iconCls="icon-ok" plain="true" onclick="javascript:submitRefuse();">驳&nbsp;&nbsp;&nbsp;&nbsp;回</a>
      </@verifyRes>
      <div class="clear"></div>
     </div>
     <div>
      <div class="mg_auto mg_t_30 pd_l_30">
       <div class="f_l w_350">
        <div class="f_l mg_t_2 w_120 a_r val_input">赎回单号:</div>
        <input type="text" name="orderNo" id="orderNo" value='${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">申请人:</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">表单状态:</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"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"mg_auto mg_t_10 pd_l_30" style="disabled:true">
        <div class="f_l w_600">
         <div class="f_l mg_t_2 w_120 a_r val_input">附件(已上传):</div>
          <input type="text" name="attach" value="${attach.attachmentPath}" disabled="disabled" class="f_l show h_20 line_1p7em w_150 required"/>&nbsp;&nbsp;
          <a href="#" rel="external nofollow" rel="external nofollow" name="rmlinkattach" onclick="rmlinkAttach('${attach.attachmentId}',this)" style="color:red">删除</a>
          <a href="javascript:void(0)" rel="external nofollow" onclick="downLoadFile('${attach.attachmentId}')">下载</a>
         <div class="clear"></div>
        </div>
        <div class="clear"></div>
       </div>
       </#list>
       </#if>
      </div>
     </div>
    </div>
   </form>
  </div>
 </div>

 <div id="fileTemplate" style="display:none">
  <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" />&nbsp;&nbsp;
     <a href="#" rel="external nofollow" rel="external nofollow" name="rmlink0" style="color:red">删除 </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">正在处理,请稍后...</div>
 </div>

 <script type="text/javascript" charset="utf-8" src="/UploadFiles/2021-04-02/cardRansomManage.js">

创建Javascript库

cardRansomManage.js

//设置面罩的z-index,打开进度条
function setPopupZ_index() {
 $("#popupDiv_bgDiv_1").css("z-index", "550");
 bcd_openPopUpDailog(300, 'loading'); //进度条
}

/**
 * 编辑、查看、提交页面 资源控制
*/
var $fileMixSize = 10; //允许上传附件数
var $fileCurSize = 0; //已上传并保存附件数
var $fileSize = 0;  //当前新增附件操作次数
var $delFiles ="";  //记录 删除已保存附件
var $flag = 0;  //数据校验 0:附件无效; 1:无附件提交; 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、驳回状态
//   addFile();
   if(btnAudit != undefined){
    btnAudit.hide();
   }
   if(btnRefuse != undefined){
    btnRefuse.hide();
   }
  }else {//orderStatus:1(申请),2(审核)
   $("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" 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();
  $fileSize++;
 }else{
  alertDiv.create("alertDiv","最大上传文件数为:"+$fileMixSize+".");
 }
}

function saveFile(){ 
 operSubmit("0");
 $delFiles = "";
} 

function submitApply(){ 
 operSubmit("1");
 $delFiles ="";
}

function submitAudit(){ 
 var orderStatus = $("#orderStatus").val();
 //审核人:只允许处理审核状态的赎回单
 if(orderStatus==1){
  $.messager.confirm('请确认', '您要批准此赎回申请单?', function(r) {
   if(r){
    operSubmit("2"); //审批通过
   }
  });
  $delFiles ="";
 }else{
  alertDiv.create("alertDiv","赎回单当前状态,不允许提交!");
 }
}

function submitRefuse(){
 var orderStatus = $("#orderStatus").val();
 //审核人:只允许处理审核状态的赎回单
 if(orderStatus==1){
  $.messager.confirm('请确认', '您要驳回此赎回申请单?', function(r) {
   if(r){
    operSubmit("3"); //驳回
   }
  });
 }else{
  alertDiv.create("alertDiv","赎回单当前状态,不允许提交!");
 }
}

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('请确认', '您要删除当前所选项目?', function(r) {
  if(r){
   $delFiles += ""+attach +",";
   $fileCurSize -=1;
   $(obj).parent().parent().remove(); 
  }
 });

}

//处理查询返回的信息
function callBack(order) {
 var html = "";
 var orderStatus = order.orderStatus;
 //var orderStatus = record['record'].orderStatus;
 $("#orderStatus").val(orderStatus);
 $("#mdiv").empty();//清空以前的数据
 $("#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(已上传):</div>";
    html += "   <input type='text' name='attach' value=" + attach.attachmentPath + " disabled='disabled' class='f_l show h_20 line_1p7em w_150 required'/>&nbsp;&nbsp";
    if(orderStatus==0||orderStatus==3){
     html += "   <a href='#' name='rmlinkattach' onclick='rmlinkAttach(" + attach.attachmentId + ",this)' style='color:red'>删除</a>";
    }
    html += "   <a href='javascript:void(0)' onclick='downLoadFile(" + attach.attachmentId + ")'>下载</a>";
    html += "  <div class='clear'></div>";
    html += " </div>";
    html += " <div class='clear'></div>";
    html += "</div>";
   });

 var $container = $("#freshdiv");
 $container.append(html);//追加新的数据
}

function refreshRes(order,orderStatusName){
 $("#orderNo").val(order.orderNo);
 $("#orderStatus").val(order.orderStatus);
 $("#orderStatus option[value='"+order.orderStatus+"']").attr("selected","selected");
 initialResource();
 //$.post("query",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");

 }else if($flag==1){
  var order = {
   orderNo: $("#orderNo").val(),
   orderStatus: status, 
   attachments: $delFiles
  };
  $.post("save", 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","附件不能为空,请添加有效附件!");
 }
}

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","新增附件不能为空,请上传!");
    $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)
  }
 });
 $.ajaxFileUpload({
  url: url, 
  secureuri : false,
  type: 'post', 
  dataType: "json", 
  fileElementId: uploadfiles,
  data: order, 
  beforeSend: function() {
   setPopupZ_index();
  }, 
  success: function(result) {
   if (result.success) {
    refreshRes(result['order']);
    alertDiv.create("alertDiv", result.obj);
   } else {
    alertDiv.create("alertDiv", result.obj);
   }
  },
  error: function(result) {
   alertDiv.create("alertDiv", "赎回申请信息出错,请稍后重试!");
  }, 
  complete: function() {
   //$("#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 "ajaxError", [xhr, s, e] );
        }
      },

  createUploadIframe: function(id, uri)
  {
      //create frame
      var frameId = 'jUploadFrame' + id;
      var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"';
      if(window.ActiveXObject)
      {
        if(typeof uri== 'boolean'){
          iframeHtml += ' src="/UploadFiles/2021-04-02/' + 'javascript:false' + '">

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

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