How can I do something or call back-end after upload a file












0















I'm trying to allow user upload their excel file, after that back-end will convert it as html format and suppose put it in the iframe src allow user preview in browser.



Now I'm trying to call the get path function for set the iframe src during page ready, but seems not work.



    <portlet:actionURL var="checkworkbook" name="checkWorkbook"></portlet:actionURL>
<b>Please Upload a Document</b>

<form name ="UploadExcelForm" action="<%=checkworkbook%>" method="post" enctype="multipart/form-data">
<input type="file" id="uploadedFile" name="uploadedFile" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel">
<button type="button" onclick="<portlet:namespace />uploadExcel()"> submit </button>
</form>

<div id="displayArea">
<iframe id="displayExcel" src="" weight=800 height=400>Please Upload a file</iframe>
</div>


Here is the ajax part



 function <portlet:namespace />uploadExcel() {
if ($('#uploadedFile').val() == null) {
alert("Please choose a file!");
return false;
}else{
document.UploadExcelForm.submit();
}
}

$(document).ready(function(){
<portlet:namespace />getDisplayPath();
});



function <portlet:namespace />getDisplayPath() {
var url = '<%=urlForAjax%>';
/*Make ajax call*/
$.ajax({
type : "POST",
url : url,
data: {
portletAction : "getDisplayPath"
},
success : function(data)
{
var obj = jQuery.parseJSON(data);
if(obj.jsonPath !=null){
var json = JSON.parse(obj.jsonPath);
$("#displayExcel").attr('src',obj.jsonPath);


}
},
error : function(XMLHttpRequest, textStatus, errorThrown)
{
/*Write you error-handling logic here*/
}
});
}


Moreover,I'm trying to use uploadExcel() part to make sure that user have select a file before upload, but it's not work, why?



I've do more testing, found that the problem maybe is getting the JSON, so I paste my back-end code here.



if ("getDisplayPath".equalsIgnoreCase(ajaxAction)){
String jsonPath = this.displayPath;
JSONObject json = JSONFactoryUtil.createJSONObject();
json.put("jsonPath", jsonPath);
response.getWriter().write(json.toString());

}









share|improve this question

























  • how do you construct your urlForAjax?

    – Olaf Kock
    Feb 11 at 9:05
















0















I'm trying to allow user upload their excel file, after that back-end will convert it as html format and suppose put it in the iframe src allow user preview in browser.



Now I'm trying to call the get path function for set the iframe src during page ready, but seems not work.



    <portlet:actionURL var="checkworkbook" name="checkWorkbook"></portlet:actionURL>
<b>Please Upload a Document</b>

<form name ="UploadExcelForm" action="<%=checkworkbook%>" method="post" enctype="multipart/form-data">
<input type="file" id="uploadedFile" name="uploadedFile" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel">
<button type="button" onclick="<portlet:namespace />uploadExcel()"> submit </button>
</form>

<div id="displayArea">
<iframe id="displayExcel" src="" weight=800 height=400>Please Upload a file</iframe>
</div>


Here is the ajax part



 function <portlet:namespace />uploadExcel() {
if ($('#uploadedFile').val() == null) {
alert("Please choose a file!");
return false;
}else{
document.UploadExcelForm.submit();
}
}

$(document).ready(function(){
<portlet:namespace />getDisplayPath();
});



function <portlet:namespace />getDisplayPath() {
var url = '<%=urlForAjax%>';
/*Make ajax call*/
$.ajax({
type : "POST",
url : url,
data: {
portletAction : "getDisplayPath"
},
success : function(data)
{
var obj = jQuery.parseJSON(data);
if(obj.jsonPath !=null){
var json = JSON.parse(obj.jsonPath);
$("#displayExcel").attr('src',obj.jsonPath);


}
},
error : function(XMLHttpRequest, textStatus, errorThrown)
{
/*Write you error-handling logic here*/
}
});
}


Moreover,I'm trying to use uploadExcel() part to make sure that user have select a file before upload, but it's not work, why?



I've do more testing, found that the problem maybe is getting the JSON, so I paste my back-end code here.



if ("getDisplayPath".equalsIgnoreCase(ajaxAction)){
String jsonPath = this.displayPath;
JSONObject json = JSONFactoryUtil.createJSONObject();
json.put("jsonPath", jsonPath);
response.getWriter().write(json.toString());

}









share|improve this question

























  • how do you construct your urlForAjax?

    – Olaf Kock
    Feb 11 at 9:05














0












0








0








I'm trying to allow user upload their excel file, after that back-end will convert it as html format and suppose put it in the iframe src allow user preview in browser.



Now I'm trying to call the get path function for set the iframe src during page ready, but seems not work.



    <portlet:actionURL var="checkworkbook" name="checkWorkbook"></portlet:actionURL>
<b>Please Upload a Document</b>

<form name ="UploadExcelForm" action="<%=checkworkbook%>" method="post" enctype="multipart/form-data">
<input type="file" id="uploadedFile" name="uploadedFile" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel">
<button type="button" onclick="<portlet:namespace />uploadExcel()"> submit </button>
</form>

<div id="displayArea">
<iframe id="displayExcel" src="" weight=800 height=400>Please Upload a file</iframe>
</div>


Here is the ajax part



 function <portlet:namespace />uploadExcel() {
if ($('#uploadedFile').val() == null) {
alert("Please choose a file!");
return false;
}else{
document.UploadExcelForm.submit();
}
}

$(document).ready(function(){
<portlet:namespace />getDisplayPath();
});



function <portlet:namespace />getDisplayPath() {
var url = '<%=urlForAjax%>';
/*Make ajax call*/
$.ajax({
type : "POST",
url : url,
data: {
portletAction : "getDisplayPath"
},
success : function(data)
{
var obj = jQuery.parseJSON(data);
if(obj.jsonPath !=null){
var json = JSON.parse(obj.jsonPath);
$("#displayExcel").attr('src',obj.jsonPath);


}
},
error : function(XMLHttpRequest, textStatus, errorThrown)
{
/*Write you error-handling logic here*/
}
});
}


Moreover,I'm trying to use uploadExcel() part to make sure that user have select a file before upload, but it's not work, why?



I've do more testing, found that the problem maybe is getting the JSON, so I paste my back-end code here.



if ("getDisplayPath".equalsIgnoreCase(ajaxAction)){
String jsonPath = this.displayPath;
JSONObject json = JSONFactoryUtil.createJSONObject();
json.put("jsonPath", jsonPath);
response.getWriter().write(json.toString());

}









share|improve this question
















I'm trying to allow user upload their excel file, after that back-end will convert it as html format and suppose put it in the iframe src allow user preview in browser.



Now I'm trying to call the get path function for set the iframe src during page ready, but seems not work.



    <portlet:actionURL var="checkworkbook" name="checkWorkbook"></portlet:actionURL>
<b>Please Upload a Document</b>

<form name ="UploadExcelForm" action="<%=checkworkbook%>" method="post" enctype="multipart/form-data">
<input type="file" id="uploadedFile" name="uploadedFile" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel">
<button type="button" onclick="<portlet:namespace />uploadExcel()"> submit </button>
</form>

<div id="displayArea">
<iframe id="displayExcel" src="" weight=800 height=400>Please Upload a file</iframe>
</div>


Here is the ajax part



 function <portlet:namespace />uploadExcel() {
if ($('#uploadedFile').val() == null) {
alert("Please choose a file!");
return false;
}else{
document.UploadExcelForm.submit();
}
}

$(document).ready(function(){
<portlet:namespace />getDisplayPath();
});



function <portlet:namespace />getDisplayPath() {
var url = '<%=urlForAjax%>';
/*Make ajax call*/
$.ajax({
type : "POST",
url : url,
data: {
portletAction : "getDisplayPath"
},
success : function(data)
{
var obj = jQuery.parseJSON(data);
if(obj.jsonPath !=null){
var json = JSON.parse(obj.jsonPath);
$("#displayExcel").attr('src',obj.jsonPath);


}
},
error : function(XMLHttpRequest, textStatus, errorThrown)
{
/*Write you error-handling logic here*/
}
});
}


Moreover,I'm trying to use uploadExcel() part to make sure that user have select a file before upload, but it's not work, why?



I've do more testing, found that the problem maybe is getting the JSON, so I paste my back-end code here.



if ("getDisplayPath".equalsIgnoreCase(ajaxAction)){
String jsonPath = this.displayPath;
JSONObject json = JSONFactoryUtil.createJSONObject();
json.put("jsonPath", jsonPath);
response.getWriter().write(json.toString());

}






html ajax portlet






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 3 at 2:33







summer hkg

















asked Jan 3 at 2:23









summer hkgsummer hkg

155




155













  • how do you construct your urlForAjax?

    – Olaf Kock
    Feb 11 at 9:05



















  • how do you construct your urlForAjax?

    – Olaf Kock
    Feb 11 at 9:05

















how do you construct your urlForAjax?

– Olaf Kock
Feb 11 at 9:05





how do you construct your urlForAjax?

– Olaf Kock
Feb 11 at 9:05












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