vue-cropper官网
链接:https://github.com/xyxiao001/vue-cropper
安装:npm install vue-cropper 或者 yarn add vue-cropper
组件封装CropperImage.vue
<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">选择封面</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($event)"> <el-button size="mini" type="danger" plain icon="el-icon-zoom-in" @click="changeScale(1)">放大</el-button> <el-button size="mini" type="danger" plain icon="el-icon-zoom-out" @click="changeScale(-1)">缩小</el-button> <el-button size="mini" type="danger" plain @click="rotateLeft">↺ 左旋转</el-button> <el-button size="mini" type="danger" plain @click="rotateRight">↻ 右旋转</el-button> </div> <div class="upload-btn"> <el-button size="mini" type="success" @click="uploadImg('blob')">上传封面 <i class="el-icon-upload"></i></el-button> </div> </div> </div> <!--预览效果图--> <div class="show-preview"> <div :style="previews.div" class="preview"> <img :src="previews.url" :style="previews.img"> </div> </div> </div> </template> <script> import { VueCropper } from 'vue-cropper' export default { name: "CropperImage", components: { VueCropper }, props:['Name'], data() { return { name:this.Name, previews: {}, option:{ img: '', //裁剪图片的地址 outputSize: 1, //裁剪生成图片的质量(可选0.1 - 1) outputType: 'jpeg', //裁剪生成图片的格式(jpeg || png || webp) info: true, //图片大小信息 canScale: true, //图片是否允许滚轮缩放 autoCrop: true, //是否默认生成截图框 autoCropWidth: 230, //默认生成截图框宽度 autoCropHeight: 150, //默认生成截图框高度 fixed: true, //是否开启截图框宽高固定比例 fixedNumber: [1.53, 1], //截图框的宽高比例 full: false, //false按原比例裁切图片,不失真 fixedBox: true, //固定截图框大小,不允许改变 canMove: false, //上传图片是否可以移动 canMoveBox: true, //截图框能否拖动 original: false, //上传图片按照原始比例渲染 centerBox: false, //截图框是否被限制在图片里面 height: true, //是否按照设备的dpr 输出等比例图片 infoTrue: false, //true为展示真实输出图片宽高,false展示看到的截图框宽高 maxImgSize: 3000, //限制图片最大宽度和高度 enlarge: 1, //图片根据截图框输出比例倍数 mode: '230px 150px' //图片默认渲染方式 } }; }, methods: { //初始化函数 imgLoad (msg) { console.log("工具初始化函数====="+msg) }, //图片缩放 changeScale (num) { num = num || 1 this.$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) { 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 } //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.$refs.cropper.getCropBlob(async (data) => { let formData = new FormData(); formData.append('file',data,"DX.jpg") //调用axios上传 let {data: res} = await _this.$http.post('/api/file/imgUpload', formData) if(res.code === 200){ _this.$message({ message: res.msg, type: "success" }); let data = res.data.replace('[','').replace(']','').split(','); let imgInfo = { name : _this.Name, url : data[0] }; _this.$emit('uploadImgSuccess',imgInfo); }else { _this.$message({ message: '文件服务异常,请联系管理员!', type: "error" }); } }) } }, }, } </script> <style scoped lang="scss"> .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>
注意:裁剪组件的基础配置option,小编这里配置了官方所给的所有基础配置,大家可以按需配置。
新建Tailoring.vue 调用封装好的组件:
这里我们先简单说一下思路,通过按钮触发事件打开我们的剪裁窗口,选择图片,点击上传之后,将地址回调回来,拿到地址就可以处理我们的业务了,比如随着表单一起将回调地址存入数据库等等。
<template> <div class="cropper-app"> <el-form :model="formValidate" :rules="ruleValidate" ref="formValidate" label-width="100px" class="demo-ruleForm"> <el-form-item label="封面上传" prop="mainImage"> <div class="list-img-box"> <div v-if="formValidate.mainImage !== ''"> <img :src="formValidate.mainImage" style='width:300px;height:150px' alt="自定义封面"> </div> <div v-else class="upload-btn" style="height: 120px;" @click="uploadPicture('flagImg')"> <i class="el-icon-plus" style="font-size: 30px;"></i> <span>封面设置</span> </div> </div> <input type="hidden" v-model="formValidate.mainImage" placeholder="请添加封面"> </el-form-item> </el-form> <!-- 剪裁组件弹窗 --> <el-dialog title="裁切封面" :visible.sync="cropperModel" width="950px" center > <cropper-image :Name="cropperName" @uploadImgSuccess = "handleUploadSuccess" ref="child"> </cropper-image> </el-dialog> <!--查看大封面--> <el-dialog title="查看大封面" :visible.sync="imgVisible" center> <img :src="imgName" v-if="imgVisible" style="width: 100%" alt="查看"> </el-dialog> </div> </template> <script> import CropperImage from "@/views/resmanage/CropperImage"; export default { name: "Tailoring", components: {CropperImage}, data () { return { formValidate: { mainImage: '', }, ruleValidate: { mainImage: [ {required: true, message: '请上传封面', trigger: 'blur'} ], }, //裁切图片参数 cropperModel:false, cropperName:'', imgName: '', imgVisible: false } }, methods: { //封面设置 uploadPicture(name){ this.cropperName = name; this.cropperModel = true; }, //图片上传成功后 handleUploadSuccess (data){ console.log(data) switch(data.name){ case 'flagImg': this.formValidate.mainImage = 'http://ydfblog.cn/dfs/'+data.url; console.log('最终输出'+data.name) break; } this.cropperModel = false; } } } </script> <style scoped> .upload-list-cover{ position: absolute; top: 0; bottom: 0; left: 0; right: 0; display: flex; flex-wrap: wrap; justify-content: space-between; padding: 0 40px; align-items: center; background: rgba(0,0,0,.6); opacity: 0; transition: opacity 1s; } .cover_icon { font-size: 30px; } .upload-btn{ display: -webkit-box; display: -ms-flexbox; display: flex; -ms-flex-wrap: wrap; flex-wrap: wrap; -webkit-box-pack: center; -ms-flex-pack: center; justify-content: center; -webkit-box-align: center; -ms-flex-align: center; align-items: center; border: 1px solid #cccccc; border-radius: 5px; overflow: hidden; box-shadow: 0 0 1px #cccccc; } .upload-btn:hover { border: 1px solid #69b7ed; } .upload-btn i{ margin: 5px; } </style>
原文地址: https://blog.csdn.net/qq_41107231/article/details/109725839
<template> <div class="updateAvatar1"> <el-button type="primary" @click="visible = true">修改头像</el-button> <el-dialog title="修改头像" :visible.sync="visible" width="800" :before-close="handleClose"> <el-row> <el-col :span="12" style="height: 300px;"> <vue-cropper ref="cropper" :img="options.img" :info="true" :autoCrop="options.autoCrop" :autoCropWidth="options.autoCropWidth" :autoCropHeight="options.autoCropHeight" :fixedBox="options.fixedBox" @realTime="realTime" > </vue-cropper> <div class="btnS"> <el-upload ref="uploadCropper" :before-upload="beforeAvatarUpload" :show-file-list="false" action="/" style="margin-right: 10px;" > <el-button type="primary" size="small">上传头像</el-button> </el-upload> <el-tooltip class="item" effect="dark" content="向左旋转" placement="top"> <el-button size="small" @click="rotateLeft"><i class="el-icon-refresh-left"></i></el-button> </el-tooltip> <el-tooltip class="item" effect="dark" content="向右旋转" placement="top"> <el-button size="small" @click="rotateRight"><i class="el-icon-refresh-right"></i></el-button> </el-tooltip> <el-tooltip class="item" effect="dark" content="放大" placement="top"> <el-button size="small" @click="changeScale(1)"><i class="el-icon-plus"></i></el-button> </el-tooltip> <el-tooltip class="item" effect="dark" content="缩小" placement="top"> <el-button size="small" @click="changeScale(-1)"><i class="el-icon-minus"></i></el-button> </el-tooltip> </div> </el-col> <el-col :span="12" style="height: 300px;"> <div class="upload-preview"> <img :src="previews.url" :style="previews.img" v-show="previews.url"/> </div> </el-col> </el-row> <span slot="footer" class="dialog-footer"> <el-button @click="visible = false" size="small">取 消</el-button> <el-button type="primary" :loading="loading" @click="submitUpdate" size="small">确 定</el-button> </span> </el-dialog> </div> </template> <script> import { VueCropper } from 'vue-cropper' export default { name: 'updateAvatar1', components: { VueCropper }, methods: { // 实时预览函数 realTime(data) { this.previews = data }, handleClose() {}, beforeAvatarUpload(file) { // 此处的上传file有多种处理方式 console.log(file) let type = file.type.split('/')[1]; if (this.uploadAccept.indexOf(type) > -1) { // 上传允许的类型之内 const reader = new FileReader() // 把Array Buffer转化为blob 如果是base64不需要 // 转化为base64 reader.readAsDataURL(file) reader.onload = () => { this.options.img = reader.result } } else { this.$message.warning("您上传的图片格式不符,请重新上传") } }, changeScale (num) { this.$refs.cropper.changeScale(num) }, rotateLeft () { this.$refs.cropper.rotateLeft() }, rotateRight () { this.$refs.cropper.rotateRight() }, submitUpdate() { this.loading = true this.$refs.cropper.getCropData((base64) => { this.uploadImg(base64); }); }, uploadImg() { // 发送ajax请求 } }, data() { return { visible: true, options: { img: '', //裁剪图片的地址 info: true, //裁剪框的大小信息 outputSize: 0.8, // 裁剪生成图片的质量 outputType: '', // 裁剪生成图片的格式 canScale: false, // 图片是否允许滚轮缩放 autoCrop: true, //是否默认生成截图框 autoCropWidth: 200, //默认生成截图框宽度 autoCropHeight: 200, fixedBox: true, // 固定截图框大小 是否允许改变 fixed: true, //是否开启截图框宽高固定比例 fixedNumber: [1, 1], //截图框的宽高比例 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 infoTrue: true // true 为展示真实输出图片宽高 false 展示看到的截图框宽高 }, previews: {}, loading: false, fileList: [], uploadAccept: ['jpeg', 'jpg', 'png'] } } } </script> <style lang="scss" scoped> /deep/{ .el-dialog{ width: 840px; } .el-dialog__body{ width: 800px; } .el-dialog__header{ border-bottom: 1px solid #eaeaea; } } .btnS{ display: flex; padding-top: 20px; .i{ position: relative; font-size: 12px; } } .upload-preview { -webkit-box-sizing: content-box; -moz-box-sizing: content-box; box-sizing: content-box; position: absolute; top: 50%; transform: translate(50%, -50%); width: 200px; height: 200px; border-radius: 50%; box-shadow: 0 0 4px #eaeaea; overflow: hidden; img { width: 100%; height: 100%; } } </style>
原文地址:https://blog.csdn.net/qq_43219422/article/details/106317574