我有上传图片的输入。我将图像存储在浏览器的Loacal存储中。上传图像后,我在本地存储中获取了信息。使用此信息,我想在页面上显示图像。我创建了下一个脚本:
document.getElementById('register').onclick = function () {
var userImg = document.getElementById('img_user').value;
localStorage.setItem('Img', userImg);
};
<form action="">
<input id="img_user" type="file">
</form>
<button id="register">Register Me</button>
localStorage.getItem('Img')
,但是显示在本地存储中上传的图像应该使用什么?
答案 0 :(得分:0)
您可以这样做,
<html>
<head></head>
<body>
<form action="">
<input id="img_user" type="file">
</form>
<button id="register">Register Me</button>
<img id="uploaded_img" />
<script>
function uploadImg(reloadElement) {
var file = document.getElementById('img_user').files[0];
if (file) {
var name = file.name;
var ext = name.substr(name.lastIndexOf(".") + 1, 4).toLowerCase()
var reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = function (e) {
var binaryString = e.target.result.toString();
//upload the data(binaryString) and then onsuccess of call back you can set the image as below or store it on localstorage whatever u want
if (reloadElement) {
document.getElementById(reloadElement).src = binaryString;
}
};
}
}
document.getElementById('register').onclick = function () {
uploadImg('uploaded_img');
};
</script>
</body>
</html>
您可以将binaryString数据上传到服务器端