vue實現圖片上傳到後臺
阿新 • • 發佈：2020-07-01
本文例項為大家分享了vue實現圖片上傳到後臺的具體程式碼，供大家參考，具體內容如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="jquery-1.11.3.min.js"></script>
<style>
.upload {
margin: 30px 40px 0;
width: 122px;
height: 122px;
padding-bottom: 40px;
position: relative;
float: left;
}
.upload .btn {
position: absolute;
left: 20px;
bottom: 0;
width: 80px;
height: 30px;
line-height: 30px;
text-align: center;
color: #Fff;
border-radius: 5px;
background: #ff6c00;
}
.upload .btn .file {
display: inline-block;
position: absolute;
width: 80px;
height: 30px;
left: 0;
top: 0;
opacity: 0;
}
.upload .btn .add{
position: absolute;
left: 0;
top: 0;
width: 80px;
height: 30px;
text-align: center;
}
.upload .imgs {
position: absolute;
left: 0;
top: 0;
width: 100px;
height: 100px;
border: 1px solid #ccc;
padding: 10px;
}
.upload .imgs img {
width: 100px;
height: 100px;
border: 1px solid #f1f1f1;
}
.upload .imgs .look {
position: absolute;
left: 10px;
top: 10px;
width: 100px;
height: 100px;
line-height: 100px;
text-align: center;
background: rgba(0,0.3);
color: #fff;
}
</style>
</head>
<body>
<!-- 模態框 -->
<div class="madel-img"></div>
<div class="upload_wrap clearfix">
<div class="upload upload1 fl">
<div class="btn">
<span class="add">上傳檔案</span>
<input type="file" class="file" multiple>
<input type="hidden" class="imgUrl">
</div>
<div class="imgs">
<img src="shenfenzheng.jpg" alt="vue實現圖片上傳到後臺">
<div class="look">圖片示範</div>
</div>
</div>
</div>
<script>
;(function($){
/* 上傳圖片 */
$.fn.upload = function(id){
this.id = id;
this.img = this.id.find($(".imgs img"));
this.img_src = this.id.find($(".imgs img")).attr("src");
this.file = this.id.find($(".file"));
this.look = this.id.find($(".look"));
this.imgUrl = this.id.find($(".imgUrl"));
var that = this;
this.file.on("change",function(){
var files = this.files;//獲得上傳的所有圖片
var reader = new FileReader();//讀取本地圖片並顯示
var name = files[0].name;
var fileName = name.substring(name.lastIndexOf(".")+1).toLowerCase();
if(fileName !="jpg" && fileName !="jpeg" && fileName !="png" && fileName !="bmp"){
layer.msg("圖片格式不正確！");
that.img.attr("src",that.img_src)
return;
}
var fileSize = files[0].size;
var size = fileSize / 1024;
if(size>10000){
layer.msg("圖片不能大於10M");
return;
}else if(size <= 0){
layer.msg("圖片不能小於0M");
return;
}
reader.readAsDataURL(files[0]);//讀取第一張圖片的地址
//資料讀取完成後改變src地址
reader.onload = function(){
that.look.css({"display":"none"});
var image = new Image();//本地快取一張圖片
var imgCur_src = this.result;//獲取正在上傳的圖片
that.img.attr("src",imgCur_src);//吧剛開始的圖片替換成上傳的圖片
}
var fd = new FormData();
fd.append("pic",files[0]);
$.ajax({
type: "POST",contentType: false,//必須false才會避開jQuery對 formdata 的預設處理,XMLHttpRequest會對 formdata 進行正確的處理
processData: false,//必須false才會自動加上正確的Content-Type
url: uploadUrl,data: fd,async: false,beforeSend: function (request) {
request.setRequestHeader("Authorization",localStorage.token);
request.setRequestHeader("X-Requested-With","XMLHttpRequest");
},success: function (msg) {
console.log(msg)
if (msg.code == "100") {
imgUrl.val(msg.data);
}
},error: function (msg) {
console.log(msg);
}
});
})
}
$(".upload1").upload($(".upload1"));
})(jQuery)
</script>
</body>
</html>關於vue.js元件的教程，請大家點選專題vue.js元件學習教程進行學習。
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。