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官网: https://github.com/xyxiao001/vue-cropper 一、安装:npm install vue-cropper 或者 yarn add vue-cropper 二、使用:import VueCropper from 'vue-cropper' 设置 export default { components: { VueCropper } }
<vueCropper ref="cropper" :img="option.img" :outputSize="option.size" :outputType="option.outputType" ></vueCropper> data(){ return{ option:{ img: 'imgUrl', // img的URL或者base64 size: 1, outputType: 'png', } } } 三、内置方法:
内置方法:通过
// 获取截图的base64 数据 this.$refs.cropper.getCropData((data) => { // do something console.log(data) }) // 获取截图的blob数据 this.$refs.cropper.getCropBlob((data) => { // do something console.log(data) }) 四、使用:<template> <div> <el-dialog title="图片剪裁" :visible.sync="show" append-to-body width="950px" center> <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($event)"> <el-button size="mini" type="danger" plain icon="el-icon-zoom-in" @click="changeScale(1)">放大</el-button> <el-button size="mini" type="danger" plain icon="el-icon-zoom-out" @click="changeScale(-1)">缩小</el-button> <el-button size="mini" type="danger" plain @click="rotateLeft">↺ 左旋转</el-button> <el-button size="mini" type="danger" plain @click="rotateRight">↻ 右旋转</el-button> </div> <div class="upload-btn"> <el-button size="mini" type="success" @click="uploadImg('blob')">上传图片 <i class="el-icon-upload"></i></el-button> </div> </div> </div> <!--预览效果图--> <div class="show-preview"> <div :style="previews.div" class="preview"> <img :src="previews.url" :style="previews.img"> </div> </div> </div> </el-dialog> </div> </template> <script> import { VueCropper } from 'vue-cropper' export default { name: "CropperImage", components: { VueCropper }, data () { return { show: this.visible, name: this.Name, previews: {}, option: { img: '', //裁剪图片的地址 outputSize: 1, //裁剪生成图片的质量(可选0.1 - 1) outputType: 'jpeg', //裁剪生成图片的格式(jpeg || png || webp) info: true, //裁剪框的大小信息,图片大小信息 canScale: true, //图片是否允许滚轮缩放 autoCrop: true, //是否默认生成截图框 autoCropWidth: 300, //默认生成截图框宽度 autoCropHeight: 200, //默认生成截图框高度 fixed: true, //是否开启截图框宽高固定比例 fixedNumber: [1.5, 1], //截图框的宽高比例 full: true, //false按原比例裁切图片,不失真 fixedBox: true, //固定截图框大小,不允许改变 canMove: false, //上传图片是否可以移动 canMoveBox: true, //截图框能否拖动 original: false, //上传图片按照原始比例渲染 centerBox: false, //截图框是否被限制在图片里面 height: true, //是否按照设备的dpr 输出等比例图片 infoTrue: false, //true为展示真实输出图片宽高,false展示看到的截图框宽高 maxImgSize: 3000, //限制图片最大宽度和高度 enlarge: 1, //图片根据截图框输出比例倍数 mode: '230px 150px' //图片默认渲染方式 } }; }, props: { visible: { type: Boolean, default: false }, Name: { type: String, default: '' } }, watch: { visible () { this.show = this.visible } }, methods: { //初始化函数 imgLoad (msg) { }, //图片缩放 changeScale (num) { num = num || 1 this.$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.$refs.cropper.getCropBlob(async (data) => { let formData = new FormData(); formData.append('file', data, new Date().getTime() + '.png') // 调用axios上传 let { data: res } = await _this.$http.post(`${msBaseUrl}common-tools-web/file/upload/image`, formData) if (res.code === 200) { _this.$message({ message: res.desc, type: "success" }); let data = res.result let imgInfo = { name: data.name, id: data.id, url: data.url }; _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="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: 0.1s; transition: 0.1s; font-weight: 500; padding: 8px 15px; font-size: 12px; border-radius: 3px; color: #fff; background-color: #409eff; border-color: #409eff; margin-right: 10px; } } </style> 效果: 总结
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