Php 如何在文件上载和插入数据库过程中加载gif
在读取文件并将其插入数据库之前,我必须先将其加载到临时位置。但是我如何在加载gif的同时完成所有这些工作,有人能告诉我吗-谢谢Php 如何在文件上载和插入数据库过程中加载gif,php,html,ajax,jquery,Php,Html,Ajax,Jquery,在读取文件并将其插入数据库之前,我必须先将其加载到临时位置。但是我如何在加载gif的同时完成所有这些工作,有人能告诉我吗-谢谢 <input type="file" name="myfile"> <input type="submit" id = "upload" value="Upload"> <div id= "loading_gif"> </div> $(document).ready(function () { $("#upl
<input type="file" name="myfile">
<input type="submit" id = "upload" value="Upload">
<div id= "loading_gif">
</div>
$(document).ready(function () {
$("#upload").click(function () {
$.ajax({
type: "POST",
url: "upload.php",
enctype: 'multipart/form-data',
data: {
file: myfile
},
success: function () {
alert("Data has been Uploaded: ");
}
});
});
});
<?php
$temp_location = "tmp/";
if(isset($_FILES["myfile"]))
{
if ($_FILES["myfile"]["error"] > 0)
{
echo "File loading error! ";
}
else
{
move_uploaded_file($_FILES["myfile"]["tmp_name"],
$temp_location. $_FILES["myfile"] ["name"]);
//read myfile and insert data into database
echo "File uploaded into database";
}
}
?>
$(文档).ready(函数(){
$(“#上载”)。单击(函数(){
$.ajax({
类型:“POST”,
url:“upload.php”,
enctype:“多部分/表单数据”,
数据:{
文件:myfile
},
成功:函数(){
警报(“数据已上传:”);
}
});
});
});
现在,您应该有JQUERY。尝试将以下代码放入代码的
部分,这将加载jquery库
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.0/jquery.min.js"></script>
.ajax_overlay{}
.ajax_loader{background:url(“load.gif”)无重复中心透明;宽度:100%;高度:100%;}
功能ajaxLoader(el,选件){
//变成这个。选项
var默认值={
bgColor:“#fff”,
持续时间:800,
不透明度:0.7,
classOveride:错误
}
this.options=jQuery.extend(默认值,选项);
this.container=$(el);
this.init=函数(){
var container=this.container;
//删除任何其他加载程序
这个。删除();
//创建覆盖
var overlay=$('').css({
“背景色”:this.options.bgColor,
“不透明度”:this.options.opacity,
“宽度”:container.width(),
“高度”:container.height(),
'位置':'绝对',
“顶部”:“0px”,
“左”:“0px”,
“z索引”:99999
}).addClass('ajax_overlay');
//添加覆盖类名称以设置新的加载程序样式
if(this.options.classOveride){
overlay.addClass(this.options.classOveride);
}
//将覆盖和加载程序插入DOM
container.append(
overlay.append(
$('').addClass('ajax\u loader')
).fadeIn(this.options.duration)
);
};
this.remove=函数(){
var overlay=this.container.children(“.ajax_overlay”);
if(叠加长度){
overlay.fadeOut(this.options.classOveride,function()){
覆盖。删除();
});
}
}
this.init();
}
var装载机;
$(文档).ajaxStart(函数(){
加载器=新的ajaxLoader(“车身”,选项);
});
变量选项={
bgColor:“#fff”,
持续时间:800,
不透明度:0.7,
classOveride:错误
}
$(文档).ajaxcomplete(函数(){
if(loader)loader.remove();
});
为您的代码
<style>
.ajax_overlay {}
.ajax_loader {background: url("loading.gif") no-repeat center center transparent;width:100%;height:100%;}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>
function ajaxLoader (el, options) {
// Becomes this.options
var defaults = {
bgColor : '#fff',
duration : 800,
opacity : 0.7,
classOveride : false
}
this.options = jQuery.extend(defaults, options);
this.container = $(el);
this.init = function() {
var container = this.container;
// Delete any other loaders
this.remove();
// Create the overlay
var overlay = $('<div></div>').css({
'background-color': this.options.bgColor,
'opacity':this.options.opacity,
'width':container.width(),
'height':container.height(),
'position':'absolute',
'top':'0px',
'left':'0px',
'z-index':99999
}).addClass('ajax_overlay');
// add an overiding class name to set new loader style
if (this.options.classOveride) {
overlay.addClass(this.options.classOveride);
}
// insert overlay and loader into DOM
container.append(
overlay.append(
$('<div></div>').addClass('ajax_loader')
).fadeIn(this.options.duration)
);
};
this.remove = function(){
var overlay = this.container.children(".ajax_overlay");
if (overlay.length) {
overlay.fadeOut(this.options.classOveride, function() {
overlay.remove();
});
}
}
this.init();
}
</script>
<input type="file" name="myfile">
<input type="submit" id = "upload" value="Upload">
<div id= "loading_gif">
</div>
$(document).ready(function () {
$("#upload").click(function () {
var loader;
$(document).ajaxStart(function(){
loader = new ajaxLoader('body', options);
});
var options = {
bgColor : '#fff',
duration : 800,
opacity : 0.7,
classOveride : false
}
$.ajax({
type: "POST",
url: "upload.php",
enctype: 'multipart/form-data',
data: {
file: myfile
},
success: function () {
alert("Data has been Uploaded: ");
$(document).ajaxcomplete(function(){
if (loader) loader.remove();
});
}
});
});
});
<?php
$temp_location = "tmp/";
if(isset($_FILES["myfile"]))
{
if ($_FILES["myfile"]["error"] > 0)
{
echo "File loading error! ";
}
else
{
move_uploaded_file($_FILES["myfile"]["tmp_name"],
$temp_location. $_FILES["myfile"] ["name"]);
//read myfile and insert data into database
echo "File uploaded into database";
}
}
?>
.ajax_overlay{}
.ajax_loader{background:url(“load.gif”)无重复中心透明;宽度:100%;高度:100%;}
功能ajaxLoader(el,选件){
//变成这个。选项
var默认值={
bgColor:“#fff”,
持续时间:800,
不透明度:0.7,
classOveride:错误
}
this.options=jQuery.extend(默认值,选项);
this.container=$(el);
this.init=函数(){
var container=this.container;
//删除任何其他加载程序
这个。删除();
//创建覆盖
var overlay=$('').css({
“背景色”:this.options.bgColor,
“不透明度”:this.options.opacity,
“宽度”:container.width(),
“高度”:container.height(),
'位置':'绝对',
“顶部”:“0px”,
“左”:“0px”,
“z索引”:99999
}).addClass('ajax_overlay');
//添加覆盖类名称以设置新的加载程序样式
if(this.options.classOveride){
overlay.addClass(this.options.classOveride);
}
//将覆盖和加载程序插入DOM
container.append(
overlay.append(
$('').addClass('ajax\u loader')
).fadeIn(this.options.duration)
);
};
this.remove=函数(){
var overlay=this.container.children(“.ajax_overlay”);
if(叠加长度){
overlay.fadeOut(this.options.classOveride,function()){
覆盖。删除();
});
}
}
this.init();
}
$(文档).ready(函数(){
$(“#上载”)。单击(函数(){
var装载机;
$(文档).ajaxStart(函数(){
加载器=新的ajaxLoader(“车身”,选项);
});
变量选项={
bgColor:“#fff”,
持续时间:800,
不透明度:0.7,
classOveride:错误
}
$.ajax({
类型:“POST”,
url:“upload.php”,
enctype:“多部分/表单数据”,
数据:{
文件:myfile
},
成功:函数(){
警报(“数据已上传:”);
$(文档).ajaxcomplete(函数(){
if(loader)loader.remove();
});
}
});
});
});
我假设您有一个图像正在加载.gif
。
将其放入img
标签,并将其id
设置为“加载”,然后使其不可见
<img id='loading' src='loading.gif' style='visibility: hidden;'>
我知道您知道必须将jquery脚本放在文档中的何处:我是不是遗漏了什么?我看不到您的AJAX实现如何显示加载的GIF与服务器上发生的事情无关,因为GIF在浏览器上。@esqew我已经编辑了它。现在标准的AJAX无论如何都不能上传文件。。。这永远不会像写的那样起作用。另外,您的服务器端代码是一个可怕的安全风险,您正在打开您的服务器,使其面临完全的远程危害。在您学会如何安全地处理上载之前,请停止使用此代码
<style>
.ajax_overlay {}
.ajax_loader {background: url("loading.gif") no-repeat center center transparent;width:100%;height:100%;}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>
function ajaxLoader (el, options) {
// Becomes this.options
var defaults = {
bgColor : '#fff',
duration : 800,
opacity : 0.7,
classOveride : false
}
this.options = jQuery.extend(defaults, options);
this.container = $(el);
this.init = function() {
var container = this.container;
// Delete any other loaders
this.remove();
// Create the overlay
var overlay = $('<div></div>').css({
'background-color': this.options.bgColor,
'opacity':this.options.opacity,
'width':container.width(),
'height':container.height(),
'position':'absolute',
'top':'0px',
'left':'0px',
'z-index':99999
}).addClass('ajax_overlay');
// add an overiding class name to set new loader style
if (this.options.classOveride) {
overlay.addClass(this.options.classOveride);
}
// insert overlay and loader into DOM
container.append(
overlay.append(
$('<div></div>').addClass('ajax_loader')
).fadeIn(this.options.duration)
);
};
this.remove = function(){
var overlay = this.container.children(".ajax_overlay");
if (overlay.length) {
overlay.fadeOut(this.options.classOveride, function() {
overlay.remove();
});
}
}
this.init();
}
</script>
</script>
var loader;
$(document).ajaxStart(function(){
loader = new ajaxLoader('body', options);
});
var options = {
bgColor : '#fff',
duration : 800,
opacity : 0.7,
classOveride : false
}
$(document).ajaxcomplete(function(){
if (loader) loader.remove();
});
</script>
<style>
.ajax_overlay {}
.ajax_loader {background: url("loading.gif") no-repeat center center transparent;width:100%;height:100%;}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>
function ajaxLoader (el, options) {
// Becomes this.options
var defaults = {
bgColor : '#fff',
duration : 800,
opacity : 0.7,
classOveride : false
}
this.options = jQuery.extend(defaults, options);
this.container = $(el);
this.init = function() {
var container = this.container;
// Delete any other loaders
this.remove();
// Create the overlay
var overlay = $('<div></div>').css({
'background-color': this.options.bgColor,
'opacity':this.options.opacity,
'width':container.width(),
'height':container.height(),
'position':'absolute',
'top':'0px',
'left':'0px',
'z-index':99999
}).addClass('ajax_overlay');
// add an overiding class name to set new loader style
if (this.options.classOveride) {
overlay.addClass(this.options.classOveride);
}
// insert overlay and loader into DOM
container.append(
overlay.append(
$('<div></div>').addClass('ajax_loader')
).fadeIn(this.options.duration)
);
};
this.remove = function(){
var overlay = this.container.children(".ajax_overlay");
if (overlay.length) {
overlay.fadeOut(this.options.classOveride, function() {
overlay.remove();
});
}
}
this.init();
}
</script>
<input type="file" name="myfile">
<input type="submit" id = "upload" value="Upload">
<div id= "loading_gif">
</div>
$(document).ready(function () {
$("#upload").click(function () {
var loader;
$(document).ajaxStart(function(){
loader = new ajaxLoader('body', options);
});
var options = {
bgColor : '#fff',
duration : 800,
opacity : 0.7,
classOveride : false
}
$.ajax({
type: "POST",
url: "upload.php",
enctype: 'multipart/form-data',
data: {
file: myfile
},
success: function () {
alert("Data has been Uploaded: ");
$(document).ajaxcomplete(function(){
if (loader) loader.remove();
});
}
});
});
});
<?php
$temp_location = "tmp/";
if(isset($_FILES["myfile"]))
{
if ($_FILES["myfile"]["error"] > 0)
{
echo "File loading error! ";
}
else
{
move_uploaded_file($_FILES["myfile"]["tmp_name"],
$temp_location. $_FILES["myfile"] ["name"]);
//read myfile and insert data into database
echo "File uploaded into database";
}
}
?>
<img id='loading' src='loading.gif' style='visibility: hidden;'>
<script>
function showLoading(){
document.getElementById("loading").style = "visibility: visible";
}
function hideLoading(){
document.getElementById("loading").style = "visibility: hidden";
}
</script>
$("#upload").click(function () {
//call show loading function here
showLoading();
$.ajax({
type: "POST",
url: "upload.php",
enctype: 'multipart/form-data',
data: {
file: myfile
},
success: function () {
//call hide function here
hideLoading();
alert("Data has been Uploaded: ");
},
error : function (a) {//if an error occurs
hideLoading();
alert("An error occured while uploading data.\n error code : "+a.statusText);
}
});
});