<input ref="files" type="file" name="avatar" id="avatar" v-on:change="upload">
methods: {
upload: function(e) {
e.preventDefault();
//var files = this.$refs.files;
var files = e.target.files;
var data = new FormData();
data.append('avatar', files[0]);
this.$http.post('/avatars/upload', data, function (data, status, request) {
//handling
}).error(function (data, status, request) {
//handling
});
}
<div id="main">
<form @submit.prevent="submit">
姓名
<div class="field">
<input name="name" type="text">
</div>
性別
<div class="field">
男<input name="gender" type="radio" value="male">
女<input name="gender" type="radio" value="female">
</div>
<input type="submit" value="送出">
</form>
</div>
new Vue({
el: '#main',
methods: {
submit: function(event) {
// FormData支援把 Form 元素丟進去
var formData = new FormData(event.target)
this.$http.post('/path/to', formData, function (data, status, request) {
// Success
}).error(function (data, status, request) {
// Error
});
}
}
})
前端处理图片压缩
https://github.com/think2011/localResizeIMG
js image转base64编码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Document</title>
</head>
<body>
<script type = "text/javascript">
function getBase64Image(img) {
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0, img.width, img.height);
var dataURL = canvas.toDataURL("image/png");
return dataURL // return dataURL.replace("data:image/png;base64,", "");
}
function main() {
var img = document.createElement('img');
img.src = './images/yeoman.png';
img.onload =function() {
var data = getBase64Image(img);
console.log(data);
}
document.body.appendChild(img);
}
main();
</script>
</body>
</html>
