效果图
1.配置环境
npm install vue-cropper
2.复制代码
<template> <div class="cropper-content"> <div class="cropper-box"> <div class="cropper"> <vue-cropper ref="cropper" :img="option.img" :outputSize="option.outputSize" :outputType="option.outputType" :info="option.info" :canScale="option.canScale" :autoCrop="option.autoCrop" :autoCropWidth="option.autoCropWidth" :autoCropHeight="option.autoCropHeight" :fixed="option.fixed" :fixedNumber="option.fixedNumber" :full="option.full" :fixedBox="option.fixedBox" :canMove="option.canMove" :canMoveBox="option.canMoveBox" :original="option.original" :centerBox="option.centerBox" :height="option.height" :infoTrue="option.infoTrue" :maxImgSize="option.maxImgSize" :enlarge="option.enlarge" :mode="option.mode" @realTime="realTime" @imgLoad="imgLoad"> </vue-cropper> </div> <!--底部操作工具按钮--> <div class="footer-btn"> <div class="scope-btn"> <label class="btn" for="uploads">选择图片</label> <input type="file" id="uploads" style="position:absolute; clip:rect(0 0 0 0);" accept="image/png, image/jpeg, image/gif, image/jpg" @change="selectImg($event)"> <el-button size="mini" type="danger" plain icon="el-icon-zoom-in" @click="changeScale(1)">放大</el-button> <el-button size="mini" type="danger" plain icon="el-icon-zoom-out" @click="changeScale(-1)">缩小</el-button> <el-button size="mini" type="danger" plain @click="rotateLeft">↺ 左旋转</el-button> <el-button size="mini" type="danger" plain @click="rotateRight">↻ 右旋转</el-button> </div> <div class="upload-btn"> <el-button size="mini" type="success" @click="uploadImg('blob')">裁剪完毕 <i class="el-icon-upload"></i> </el-button> </div> </div> </div> <!--预览效果图--> <div class="show-preview"> <div :style="previews.div" class="preview"> <img :src="previews.url" :style="previews.img"> </div> </div> </div> </template> <script> import { VueCropper } from 'vue-cropper' export default { name: "CropperImage", components: { VueCropper }, props: ['Name'], data() { return { name: this.Name, previews: {}, option: { img: '', //裁剪图片的地址 outputSize: 1, //裁剪生成图片的质量(可选0.1 - 1) outputType: 'jpeg', //裁剪生成图片的格式（jpeg || png || webp） info: true, //图片大小信息 canScale: true, //图片是否允许滚轮缩放 autoCrop: true, //是否默认生成截图框 autoCropWidth: 160, //默认生成截图框宽度 autoCropHeight: 90, //默认生成截图框高度 fixed: true, //是否开启截图框宽高固定比例 fixedNumber: [1.77777, 1], //截图框的宽高比例 full: false, //false按原比例裁切图片，不失真 fixedBox: true, //固定截图框大小，不允许改变 canMove: false, //上传图片是否可以移动 canMoveBox: true, //截图框能否拖动 original: false, //上传图片按照原始比例渲染 centerBox: false, //截图框是否被限制在图片里面 height: true, //是否按照设备的dpr 输出等比例图片 infoTrue: false, //true为展示真实输出图片宽高，false展示看到的截图框宽高 maxImgSize: 3000, //限制图片最大宽度和高度 enlarge: 1, //图片根据截图框输出比例倍数 mode: '100%' //图片默认渲染方式 } }; }, methods: { //初始化函数 imgLoad(msg) { console.log("工具初始化函数=====" + msg) }, //图片缩放 changeScale(num) { num = num || 1 this.$refs.cropper.changeScale(num) }, //向左旋转 rotateLeft() { this.$refs.cropper.rotateLeft() }, //向右旋转 rotateRight() { this.$refs.cropper.rotateRight() }, //实时预览函数 realTime(data) { // console.log('实时预览图片的data:' + data); // console.log(data); this.previews = data }, //选择图片 selectImg(e) { let file = e.target.files[0] if (!/\.(jpg|jpeg|png|JPG|PNG)$/.test(e.target.value)) { this.$message({ message: '图片类型要求：jpeg、jpg、png', type: "error" }); return false } //转化为blob let reader = new FileReader() reader.onload = (e) => { let data if (typeof e.target.result === 'object') { data = window.URL.createObjectURL(new Blob([e.target.result])) } else { data = e.target.result } this.option.img = data //将创建的blob图片链接保存到数据里面，跟正常图片一样 } //转化为base64 reader.readAsDataURL(file) }, //上传图片 uploadImg(type) { let _this = this; if (type === 'blob') { //获取截图的blob数据 this.$refs.cropper.getCropBlob((file) => {//得到裁剪以后的图片文件,方便使用 this.$refs.cropper.getCropData((base64) => {//得到裁剪以后的base64图片，方便使用 alert('裁剪完毕，请看代码里面的uploadImg函数里面教你的使用方法，懒狗记得看') //如果你想使用file二进制文件上传！那么请用11111111里面的代码，尤其是formData这样的上传格式，否则上传失败 //1111111111111111111111111111111111111111111111111111111111111111111111111 // let formData = new FormData(); // formData.append('file',data,"DX.jpg") // let {data: res} = await _this.$http.post('/api/file/imgUpload', formData) //1111111111111111111111111111111111111111111111111111111111111111111111111111 //如果你用base64那用请用22222222 //2222222222222222222222222222222222222222222222222222222222222222222 //就正常post上传就行，这样都不会啊 //22222222222222222222222222222222222222222222222222222222222222222 }) }) } }, }, } </script> <style scoped lang="less"> .cropper-content { display: flex; display: -webkit-flex; justify-content: flex-end; .cropper-box { flex: 1; width: 100%; .cropper { width: auto; height: 300px; } } .show-preview { flex: 1; -webkit-flex: 1; display: flex; display: -webkit-flex; justify-content: center; .preview { overflow: hidden; border: 1px solid #67c23a; background: #cccccc; } } } .footer-btn { margin-top: 30px; display: flex; display: -webkit-flex; justify-content: flex-end; .scope-btn { display: flex; display: -webkit-flex; justify-content: space-between; padding-right: 10px; } .upload-btn { flex: 1; -webkit-flex: 1; display: flex; display: -webkit-flex; justify-content: center; } .btn { outline: none; display: inline-block; line-height: 1; white-space: nowrap; cursor: pointer; -webkit-appearance: none; text-align: center; -webkit-box-sizing: border-box; box-sizing: border-box; outline: 0; -webkit-transition: .1s; transition: .1s; font-weight: 500; padding: 8px 15px; font-size: 12px; border-radius: 3px; color: #fff; background-color: #409EFF; border-color: #409EFF; margin-right: 10px; } } </style>
