官网:
https://github.com/xyxiao001/vue-cropper
一、安装:
或者
二、使用:
- import VueCropper from 'vue-cropper'
设置component
:
- export default {
- components: {
- VueCropper
- }
- }
template
中插入:(外面需要套一个div,用于设置插件显示的大小)
- <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:
名称 |
功能 |
默认值 |
可选值 |
img |
裁剪图片的地址 |
空 |
url 地址 / base64 / blob |
outputSize |
裁剪生成图片的质量 |
1 |
0.1 - 1 |
outputType |
裁剪图片的地址 |
jpg (jpg 需要传入jpeg) |
jpeg / png / web |
内置方法:通过this.$refs.cropper
调用插件。
this.$refs.cropper.startCrop()
开始截图(如果没有设置截图框的话,通过这个启动截图框)
this.$refs.cropper.stopCrop()
停止截图
this.$refs.cropper.clearCrop()
清除截图
this.$refs.cropper.getCropData()
获取截图信息(得到截图的URL或者base64)
- // 获取截图的base64 数据
- this.$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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