本文实例为大家分享了vue移动端图片裁剪上传的具体代码,供大家参考,具体内容如下
1.安装cropperjs依赖库
npm install cropperjs
2.编写组件SimpleCropper.vue
<template> <div class="v-simple-cropper"> <slot> <button @click="upload">上传图片</button> </slot> <input class="file" ref="file" type="file" accept="image/*" @change="uploadChange"> <div class="v-cropper-layer" ref="layer"> <div class="layer-header"> <button class="cancel" @click="cancelHandle">取消</button> <button class="confirm" @click="confirmHandle">裁剪</button> </div> <img ref="cropperImg"> </div> </div> </template> <script> import Cropper from 'cropperjs' import 'cropperjs/dist/cropper.min.css' export default { name: 'v-simple-cropper', props: { initParam: Object, successCallback: { type: Function, default: () => {} } }, data () { return { cropper: {}, filename: '' } }, mounted () { this.init() }, methods: { // 初始化裁剪插件 init () { let cropperImg = this.$refs['cropperImg'] this.cropper = new Cropper(cropperImg, { aspectRatio: 1 / 1, dragMode: 'move' }) }, // 点击上传按钮 upload () { this.$refs['file'].click() }, // 选择上传文件 uploadChange (e) { let file = e.target.files[0] this.filename = file['name'] let URL = window.URL || window.webkitURL this.$refs['layer'].style.display = 'block' this.cropper.replace(URL.createObjectURL(file)) }, // 取消上传 cancelHandle () { this.cropper.reset() this.$refs['layer'].style.display = 'none' this.$refs['file'].value = '' }, // 确定上传 confirmHandle () { let cropBox = this.cropper.getCropBoxData() let scale = this.initParam['scale'] || 1 let cropCanvas = this.cropper.getCroppedCanvas({ width: cropBox.width * scale, height: cropBox.height * scale }) let imgData = cropCanvas.toDataURL('image/jpeg') let formData = new window.FormData() formData.append('fileType', this.initParam['fileType']) formData.append('img', imgData) formData.append('signId', this.$localStorage('signId')) formData.append('originalFilename', this.filename) window.$axios(this.initParam['uploadURL'], formData, { method: 'post', headers: {'Content-Type': 'multipart/form-data'} }).then(res => { this.successCallback(res.data) this.cancelHandle() }) } } } </script> <style lang="less"> .v-simple-cropper { .file { display: none; } .v-cropper-layer { position: fixed; top: 0; bottom: 0; left: 0; right: 0; background: #fff; z-index: 99999; display: none; .layer-header { position: absolute; top: 0; left: 0; z-index: 99999; background: #fff; width: 100%; height: .8rem; padding: 0 .2rem; box-sizing: border-box; } .cancel, .confirm { line-height: .8rem; font-size: .28rem; background: inherit; border: 0; outline: 0; float: left; } .confirm { float: right; } img { position: inherit!important; border-radius: inherit!important; float: inherit!important; } } } </style>
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文章题目:vue实现移动端图片裁剪上传功能-创新互联
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