jquery ajax实现文件上传功能实例代码
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2022-03-07 16:57:07
下面看下ajax实现文件上传
没有使用插件
一、单文件上传
下面看下ajax实现文件上传
没有使用插件
一、单文件上传
<!doctype html>
<html>
<head lang="en">
<meta charset="utf-8">
<script src="https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script>
<title></title>
</head>
<body>
<form id="uploadform" enctype="multipart/form-data">
文件:<input id="file" type="file" name="file"/>
</form>
<button id="upload">上传文件</button>
</body>
<script type="text/javascript">
$(function () {
$("#upload").click(function () {
var formdata = new formdata($('#uploadform')[0]);
$.ajax({
type: 'post',
url: "http://192.168.1.101:8080/springbootdemo/file/upload",
data: formdata,
cache: false,
processdata: false,
contenttype: false,
}).success(function (data) {
alert(data);
}).error(function () {
alert("上传失败");
});
});
});
</script>
</html>
二、多文件上传
<!doctype html>
<html>
<head lang="en">
<meta charset="utf-8">
<script src="https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script>
<title></title>
</head>
<body>
<form id="uploadform" enctype="multipart/form-data">
文件:<input type="file" name="file" multiple="multiple"/><br>
</form>
<button id="upload">上传文件</button>
</body>
<script type="text/javascript">
$(function () {
$("#upload").click(function () {
var formdata = new formdata($('#uploadform')[0]);
$.ajax({
type: 'post',
url: "http://192.168.1.101:8080/springbootdemo/file/uploadfiles",
data: formdata,
cache: false,
processdata: false,
contenttype: false,
}).success(function (data) {
alert(data);
}).error(function () {
alert("上传失败");
});
});
});
</script>
</html>
这个是多选上传，关键是multiple="multiple"这个属性，另外使用的接口也是多文件上传的接口。
当然也可以使用单文件上传的模式，多次选择就可以了，只不过接口也是iyaoshiyong多文件上传的接口。
<!doctype html>
<html>
<head lang="en">
<meta charset="utf-8">
<script src="https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script>
<title></title>
</head>
<body>
<form id="uploadform" enctype="multipart/form-data">
文件:<input type="file" name="file"/><br>
文件:<input type="file" name="file"/><br>
文件:<input type="file" name="file"/><br>
</form>
<button id="upload">上传文件</button>
</body>
<script type="text/javascript">
$(function () {
$("#upload").click(function () {
var formdata = new formdata($('#uploadform')[0]);
$.ajax({
type: 'post',
url: "http://192.168.1.101:8080/springbootdemo/file/uploadfiles",
data: formdata,
cache: false,
processdata: false,
contenttype: false,
}).success(function (data) {
alert(data);
}).error(function () {
alert("上传失败");
});
});
});
</script>
</html>
测试都通过了！！！
下面通过一段实例代码给大家介绍ajax拖拽上传功能的实现，具体代码如下；
ajax拖拽上传功能，实现代码如下所示：
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>document</title>
<style>
.box {
width: 300px;
height: 300px;
border: 1px solid #000;
text-align: center;
line-height: 300px;
font-size: 40px;
}
</style>
</head>
<body>
<div class="box">+</div>
<script>
var box = document.queryselector('.box');
box.ondragover = function (e) {
e.preventdefault();
}
box.ondrop = function (e) {
console.log(e.datatransfer)
e.preventdefault();
var xhr = new xmlhttprequest();
xhr.onreadystatechange = function () {
if (xhr.readystate == 4 && xhr.status == 200) {
console.log(xhr.responsetext)
}
}
xhr.open('post', './server.php', true);
var formdata = new formdata();
formdata.append('pic', e.datatransfer.files[0]);
formdata.append('name', 'luyao');
xhr.send(formdata);
}
</script>
</body>
</html>
//server.php
<?php
$rand = rand(1,1000).'.jpg';
move_uploaded_file($_files['pic']['tmp_name'], './uploads/'.$rand);
echo '/uploads/'.$rand;
总结
以上所述是小编给大家介绍的jquery ajax实现文件上传功能实例代码，希望对大家有所帮助