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我試圖用jQuery做多個輸入圖像預覽。預覽圖像工作正常，但在同一個div中的圖像預覽，我需要在不同的div中的每個圖像預覽。我該怎麼做？jQuery的圖像預覽
HTML
<html>
<form action="index.php" id="myForm" name="myForm" enctype="multipart/form-data" method="post" accept-charset="utf-8">
desktop:<input type="file" id="files" name="files" multiple><br/>
<div id="selectedFiles"></div>
mobile:<input type="file" id="mobile" name="mobile" multiple><br/>
<div id="selectFiles"></div>
<button type="submit">Submit</button>
</form></br></body>
</html>
custom.js
$(document).ready(function() {
/*multiple image preview first input*/
$("#files").on("change", handleFileSelect);
selDiv = $("#selectedFiles");
$("#myForm").on("submit", handleForm);
$("body").on("click", ".selFile", removeFile);
/*end image preview */
/* Multiple image preview second input*/
$("#mobile").on("change", handleFileSelect);
selDivM = $("#selectFiles");
$("#myForm").on("submit", handleForm);
$("body").on("click", ".selFile", removeFile);
/*end image preview*/
)}
方法
功能處理文件選擇
var selDiv = "";
var selDivM="";
var storedFiles = [];
function handleFileSelect(e) {
var files = e.target.files;
var filesArr = Array.prototype.slice.call(files);
filesArr.forEach(function(f) {
if(!f.type.match("image.*")) {
return;
}
storedFiles.push(f);
var reader = new FileReader();
reader.onload = function (e) {
var html = "<div><img src=\"" + e.target.result + "\" data-file='"+f.name+"' class='selFile' title='Click to remove'>" + f.name + "<br clear=\"left\"/></div>";
if (typeof selDivM !== "") {
selDivM.append(html);
}else {
selDiv.append(html);
}
}
reader.readAsDataURL(f);
});
}
功能處理表單
function handleForm(e) {
e.preventDefault();
var data = new FormData();
for(var i=0, len=storedFiles.length; i<len; i++) {
data.append('files', storedFiles[i]);
}
var xhr = new XMLHttpRequest();
xhr.open('POST', 'handler.cfm', true);
xhr.onload = function(e) {
if(this.status == 200) {
console.log(e.currentTarget.responseText);
alert(e.currentTarget.responseText + ' items uploaded.');
}
}
xhr.send(data);
}
功能刪除文件，如果點擊
function removeFile(e) {
var file = $(this).data("file");
for(var i=0;i<storedFiles.length;i++) {
if(storedFiles[i].name === file) {
storedFiles.splice(i,1);
break;
}
}
$(this).parent().remove();
}
$(document).ready(function() {
/*multiple image preview first input*/
$("#files").on("change", handleFileSelect);
selDiv = $("#selectedFiles");
$("#myForm").on("submit", handleForm);
$("body").on("click", ".selFile", removeFile);
/*end image preview */
/* Multiple image preview second input*/
$("#mobile").on("change", handleFileSelect);
selDivM = $("#selectFiles");
$("#myForm").on("submit", handleForm);
$("body").on("click", ".selFile", removeFile);
});
/*multiple image preview*/
var selDiv = "";
// var selDivM="";
var storedFiles = [];
function handleFileSelect(e) {
var files = e.target.files;
var filesArr = Array.prototype.slice.call(files);
filesArr.forEach(function(f) {
if(!f.type.match("image.*")) {
return;
}
storedFiles.push(f);
var reader = new FileReader();
reader.onload = function (e) {
var html = "<div><img src=\"" + e.target.result + "\" data-file='"+f.name+"' class='selFile' title='Click to remove'>" + f.name + "<br clear=\"left\"/></div>";
selDivM.append(html);
}
reader.readAsDataURL(f);
});
}
function handleForm(e) {
e.preventDefault();
var data = new FormData();
for(var i=0, len=storedFiles.length; i<len; i++) {
data.append('files', storedFiles[i]);
}
var xhr = new XMLHttpRequest();
xhr.open('POST', 'handler.cfm', true);
xhr.onload = function(e) {
if(this.status == 200) {
console.log(e.currentTarget.responseText);
alert(e.currentTarget.responseText + ' items uploaded.');
}
}
xhr.send(data);
}
function removeFile(e) {
var file = $(this).data("file");
for(var i=0;i<storedFiles.length;i++) {
if(storedFiles[i].name === file) {
storedFiles.splice(i,1);
break;
}
}
$(this).parent().remove();
}#selectedFiles img {
max-width: 200px;
max-height: 200px;
float: left;
margin-bottom:10px;
}
#userActions input{
width: auto;
margin: auto;
}
#selectFiles img {
max-width: 200px;
max-height: 200px;
float: left;
margin-bottom:10px;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<html>
<body>
<form action="index.php" id="myForm" name="myForm" enctype="multipart/form-data" method="post" accept-charset="utf-8">
desktop:<input type="file" id="files" name="files" multiple><br/>
<div id="selectedFiles"></div>
mobile:<input type="file" id="mobile" name="mobile" multiple><br/>
<div id="selectFiles"></div>
<button type="submit">Submit</button>
</form>
</body>
</html>
您可以接收數據的圖片src ？ – Muhammed
你可以在你的函數'handleFileSelect（e）'中使用'e.target.name'這個名字，它會返回'files'或'mobile'。根據您的需要，您可以將其附加到div上。 –
你好，我只是想知道如何刪除功能在這裏工作？它不適合我的代碼。這需要Handler.cfm嗎？ – Sravan