<script type="text/javascript">
var fileName = null;
var oldFileName = null;
setFileOnChange();
function upload() {
var oldAction = $('form_1').action;
$('form_1').action = "fileupload/fileUploadServlet.do";
$('form_1').method = "post";
$('form_1').enctype = "multipart/form-data";
$('form_1').target = "iframe_hidden";
oldFileName = getFileName();
$('form_1').submit();
addImg();
$('form_1').action = oldAction;
$('form_1').enctype = '';
$('form_1').target = 'self';
} function getFileName(){
return fileName;
}
function setFileOnChange(){
$('file_img').onchange = function(){
fileName = this.value;
}
}
function isNewFile(){
if(oldFileName!=null && oldFileName != fileName){
return true;
}else{
return false;
}
}
function addImg(){
if(alreadyExist()&&isNewFile()){
changeImg();
}else{
append();
}
}
function changeImg(){
var node = $('img_1');
var oldSrc = node.src;
var newSrc = getImgHref();
if(oldSrc != newSrc){
node.src = newSrc;
}else{
setTimeout('changeImg()',1000);
}
}
function append() {
var _src = getImgHref();
if(_src!=null){
var node = document.createElement("img");
node.id='img_1';
node.src = _src;
node.width = "85";
node.height = "100";
$('td_img').appendChild(node);
}else{
setTimeout('append()',1000);
}
}
function alreadyExist(){
var node = $('img_1');
if(node != null){
return true;
}
return false;
} function $(nodeId) {
return document.getElementById(nodeId);
} function getIframe() {
var doc = null;
if (document.all) {//IE
doc = document.frames["iframe_hidden"].document;
} else {//Firefox
doc = document.getElementById("iframe_hidden").contentDocument;
}
return doc;
} function getImgHref() {
var node = getIframe().getElementById('hidden_imgHref');
if(node!=null){
var v = node.value;
return v;
}
return null;
}
</script>
主要是用来添加img节点的,应该递归的函数现在就执行了一次.不知道这setTimeout哪出了问题.跪求高手解答.
var fileName = null;
var oldFileName = null;
setFileOnChange();
function upload() {
var oldAction = $('form_1').action;
$('form_1').action = "fileupload/fileUploadServlet.do";
$('form_1').method = "post";
$('form_1').enctype = "multipart/form-data";
$('form_1').target = "iframe_hidden";
oldFileName = getFileName();
$('form_1').submit();
addImg();
$('form_1').action = oldAction;
$('form_1').enctype = '';
$('form_1').target = 'self';
} function getFileName(){
return fileName;
}
function setFileOnChange(){
$('file_img').onchange = function(){
fileName = this.value;
}
}
function isNewFile(){
if(oldFileName!=null && oldFileName != fileName){
return true;
}else{
return false;
}
}
function addImg(){
if(alreadyExist()&&isNewFile()){
changeImg();
}else{
append();
}
}
function changeImg(){
var node = $('img_1');
var oldSrc = node.src;
var newSrc = getImgHref();
if(oldSrc != newSrc){
node.src = newSrc;
}else{
setTimeout('changeImg()',1000);
}
}
function append() {
var _src = getImgHref();
if(_src!=null){
var node = document.createElement("img");
node.id='img_1';
node.src = _src;
node.width = "85";
node.height = "100";
$('td_img').appendChild(node);
}else{
setTimeout('append()',1000);
}
}
function alreadyExist(){
var node = $('img_1');
if(node != null){
return true;
}
return false;
} function $(nodeId) {
return document.getElementById(nodeId);
} function getIframe() {
var doc = null;
if (document.all) {//IE
doc = document.frames["iframe_hidden"].document;
} else {//Firefox
doc = document.getElementById("iframe_hidden").contentDocument;
}
return doc;
} function getImgHref() {
var node = getIframe().getElementById('hidden_imgHref');
if(node!=null){
var v = node.value;
return v;
}
return null;
}
</script>
主要是用来添加img节点的,应该递归的函数现在就执行了一次.不知道这setTimeout哪出了问题.跪求高手解答.
这是最令我郁闷的地方.
请问条件哪里有问题?不明白,求解释
应该是我逻辑写错了,谢谢各位指点