我想使用visualforce在Salesforce中上传多个文件。我可以一次上传一个文件。
但我的要求是，我想在visualforce页面中只显示一个“添加文件”按钮，当点击该按钮时，浏览窗口应该打开，用户选择一个特定文件并添加它。但是在添加文件之后，应该显示文件路径，并且下面应该显示相同的“添加文件”按钮，这样我们就可以添加另一个文件。之后我们可以保存我们添加的内容。它与在我们的电子邮件中添加附件相同。
任何有关这方面的帮助将不胜感激。
<!-- Use uploadFile function to attach multiple attachment.Update hardcoded parent id.-->
<apex:page>
<script src="//code.jquery.com/jquery-1.11.2.min.js"></script>
<script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
<script type="text/javascript">
var __sfdcSessionId = '{!GETSESSIONID()}';
var filesToUpload = [];
var uploadedFile = 0;
</script>
<style>
.FilebuttonStyle{
font-family:Arial,'Helvetica Neue',Helvetica,sans-serif;
font-size:13px`enter code here`;color:#ffffff;
background-color: #169fcc !important;
text-decoration:none;
text-align:center;
border:1px solid #1691ba !important;
line-height: 25px;!important;
border-radius:4px;
display:inline-block;
cursor:pointer;
width:85px;
}
td.fileRow {
overflow: hidden;
font-family:Arial,'Helvetica Neue',Helvetica,sans-serif;
font-size:13px;color:#ffffff;
background-color: #8db728;
text-decoration:none;
text-align:center;
border:1px solid #6c8049;
line-height: 32px;!important;
border-radius:4px;
//padding-left:10px;
//padding-right:10px;
background-image:linear-gradient(top,#9dcc3d,#7da223);
background-image:-o-linear-gradient(top,#9dcc3d,#7da223);
background-image:-moz-linear-gradient(top,#9dcc3d,#7da223);
background-image:-webkit-linear-gradient(top,#9dcc3d,#7da223);
background-image:-ms-linear-gradient(top,#9dcc3d,#7da223);
display:inline-block;
cursor:pointer;
width:120px;
overflow: hidden;
}
td.fileRow input {
display: block !important;
width: 157px !important;
height: 57px !important;
opacity: 0 !important;
overflow: hidden !important;
}
.fileCheckBox {
width: 16px;
height: 16px;
display: inline-block;
margin: 3px 5px 3px 3px;
background-color: white;
//box-shadow: 0px 0px 1px #b0b3ae;
text-align: center;
vertical-align: top;
}
.FilebuttonGroup{
float:right;
padding-right: -70px!important;
}
</style>
<script src="/soap/ajax/32.0/connection.js" type="text/javascript"></script>
<script type="text/javascript">
function uploadFile(parentId)
{
// var input = $('.fileInput')[0];
//var input = document.getElementById("file-input");
// var filesToUpload = input.files;
$("input[type=file]").each(function(){
filesToUpload.push($(this)[0].files[0]);
});
//console.log(filesToUpload);
for(var i = 0, f; f = filesToUpload[i]; i++)
{
var reader = new FileReader();
// Keep a reference to the File in the FileReader so it can be accessed in callbacks
reader.file = f;
reader.onload = function(e)
{
var att = new sforce.SObject("Attachment");
att.Name = this.file.name;
att.ContentType = this.file.type;
att.ParentId = parentId;
var binary = "";
var bytes = new Uint8Array(e.target.result);
var length = bytes.byteLength;
for (var i = 0; i < length; i++)
{
binary += String.fromCharCode(bytes[i]);
}
att.Body = (new sforce.Base64Binary(binary)).toString();
sforce.connection.create([att],
{
onSuccess : function(result, source)
{
if (result[0].getBoolean("success"))
{
console.log("new attachment created with id " + result[0].id);
}
else
{
console.log("failed to create attachment " + result[0]);
}
},
onFailure : function(error, source)
{
console.log("an error has occurred " + error);
}
});
};
reader.readAsArrayBuffer(f);
}
}
function addRow(tableID){
var row = '<tr><td><input type="checkbox" onclick="processCheckbox()" name="chk" class="fileCheckBox"/</td><td class="fileRows"><input type="file"/> </td></tr>';
$('#'+tableID).append(row);
}
function deleteRow(tableID)
{
try
{
var table=document.getElementById(tableID);
var rowCount=table.rows.length;
for(var i=0;i<rowCount;i++)
{
var row=table.rows[i];
var chkbox=row.cells[0].childNodes[0];
if(null!=chkbox&&true==chkbox.checked)
{
table.deleteRow(i);
filesToUpload.splice(i, 1);
// console.log(filesToUpload);
rowCount--;
i--;
}
}
processCheckbox();
}
catch(e)
{
alert(e);
}
}
function processCheckbox(){
$("[id$='_remove']").hide();
var checkCount=0;
$("#dataTable input[type='checkbox']").each(function(){
if($(this).is(':checked'))
{
checkCount++;
}
});
if(checkCount >0){
$("[id$='_remove']").show();
}
}
</script>
<div class="FilebuttonGroup">
<input type="button" value="Delete Row" id="_remove" onclick="deleteRow('dataTable')" class="FilebuttonStyle" title="Delete Row"/>
<input type="button" value="Add Row" onclick="addRow('dataTable')" id="_add" class="FilebuttonStyle" title="Add Row"/>
</div>
<table id="dataTable" >
<tbody>
<tr>
<td> </td>
<td class="fileRows"> <input type="file" class="fileInput"/> </td>
<td></td>
</tr>
</tbody>
</table>
<!--Correct this attachment parentid -->
<input type="button" value="Upload" onclick="uploadFile('5009000000cjeZn')" title="Upload"/>
<div id="statusid"></div>
<script>
$(document).ready(function(){
$("[id$='_remove']").hide();
$("[id$='attachmentBlock']").find('.pbSubsection').attr({'style':'margin-right:-70px !important;'});
});
</script>
</apex:page>
您可以异步使用ajax上传多个附件。您需要更新附件的父记录ID。在以下位置找到代码：
https://github.com/DebGit/Dev_2015_org1/blob/master/src/pages/FileUploaderAjax.page