<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <title>Examples</title> <meta content=""> <meta 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 href=https://www.jb51.net/article/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> <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()+'https://www.jb51.net/'+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>
ui+axios实现图片上传
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