本文实例为大家分享了vue+element-ui+axios实现图片上传的具体代码，供大家参考，具体内容如下
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
<title>examples</title>
<meta name="description" content="">
<meta name="keywords" content="">
<!-- 引入vue -->
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<!-- 引入axios -->
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<!-- 引入样式 -->
<link rel="stylesheet" href=https://unpkg.com/element-ui/lib/theme-chalk/index.css >
<!-- 引入组件库 -->
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
</head>
<body>
<div id="app">
<el-upload
:action="posterurl"
:before-upload="beforeupload"
:http-request="(params)=>uploadimage(params)"
:on-remove="(file, filelist)=>removeimage(file, filelist)"
list-type="picture"
accept="image/*"
>
<el-button size="small">选择图片</el-button>
</el-upload>
</div>
<script type="text/javascript">
new vue({
el: '#app',
data: {
posterurl: '',
imgurls: [],
imgwidth: '320',
imgheight: '400',
},
methods: {
beforeupload(file) {
let _this = this;
let _checksize = false; //是否需要指定上传图片的尺寸
if(file.size > 1024*500) { //大小超过500kb
_this.$message.error('图片太大，请重新选择');
return false;
}
const issize = new promise((resolve, reject)=>{
let _url = window.url || window.webkiturl;
let img = new image();
img.onload = function () {
if(!_checksize || (_checksize && img.width==_this.imgwidth && img.height==_this.imgheight)) {
resolve();
}
else {
reject();
}
}
img.src = _url.createobjecturl(file);
}).then(()=>{
return file;
}, ()=>{
_this.$message.error('图片尺寸不对，请重新选择');
return promise.reject();
});
return issize;
},
uploadimage(params) {
console.log(params);
let uploaddata = new formdata();
uploaddata.append('file', params.file);
let config = {
headers: {
'content-type': 'multipart/form-data'
}
};
this.uploadposter('homed'+new date().gettime()+'/'+params.file.name, uploaddata, config)
.then(res=>{
if(res.status == 200) {
params.onsuccess();
this.imgurls.push({name:params.file.name, url:res.data.url});
console.log(this.imgurls);
}
}).catch(error=>{
params.onerror();
this.$message.error('上传失败');
});
},
removeimage(file, filelist) {
console.log(filelist);
},
uploadposter(url, obj, config) {
let poster_upload_path = "http://xxxxxxxxxxxx/httpdocsup/poster/news/";
return axios.post(poster_upload_path+url, obj, config);
}
}
})
</script>
</body>
</html>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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ros编译package后，devel文件夹内没有对应package的可执行文件
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