目录
安装插件 vue-cropper
页面中引用插件
原头像
点击“修改头像”按钮,弹出修改头像弹窗
修改头像弹窗
安装插件 vue-cropper
npm install vue-cropper --save
页面中引用插件
import {VueCropper} from 'vue-cropper'
components: {VueCropper},
原头像
<div style="text-align: center">
<img style="border-radius: 50%" width="120px" :src="avatarURL" >
<el-button type="text" @click="editAvatar">修改头像</el-button>
</div>
点击“修改头像”按钮,弹出修改头像弹窗
editAvatar() {
this.editAvatarDialog = true
this.option.img = this.avatarURL
},
修改头像弹窗
<el-dialog title="修改头像" :visible.sync="editAvatarDialog" width="40%">
<el-row type="flex" justify="center">
<div class="cropper">
<vueCropper
ref="cropper"
:img="option.img"
:outputSize="option.size"
:outputType="option.outputType"
:info="option.info"
:full="option.full"
:canMove="option.canMove"
:canMoveBox="option.canMoveBox"
:original="option.original"
:autoCrop="option.autoCrop"
:autoCropWidth="option.autoCropWidth"
:autoCropHeight="option.autoCropHeight"
:fixedBox="option.fixedBox"
@realTime="realTime"
></vueCropper>
</div>
<div class="previewBox">
<div :style="previews.div" class="preview">
<img :src="previews.url" :style="previews.img">
</div>
<el-row type="flex" justify="center">
<el-upload
action=""
:show-file-list="false"
:auto-upload="false"
:on-change="uploadImg"
>
<el-button size="mini" type="primary"
> 更换头像
</el-button>
</el-upload>
</el-row>
<br>
<el-row>
<el-button icon="el-icon-plus" circle size="mini"
@click="changeScale(1)"></el-button>
<el-button icon="el-icon-minus" circle size="mini"
@click="changeScale(-1)"></el-button>
<el-button icon="el-icon-download" circle size="mini"
@click="down('blob')"></el-button>
<el-button icon="el-icon-refresh-left" circle size="mini"
@click="rotateLeft"></el-button>
<el-button icon="el-icon-refresh-right" circle size="mini"
@click="rotateRight"></el-button>
</el-row>
</div>
</el-row>
<span slot="footer" class="dialog-footer">
<el-button @click="editAvatarDialog = false">取 消</el-button>
<el-button type="primary" @click="saveEditAvatar">确 定</el-button>
</span>
</el-dialog>
相关变量
avatarURL: require("@/assets/images/头像.jpg"),
editAvatarDialog: false,
previews: {},
option: {
img: '', // 裁剪图片的地址
info: true, // 裁剪框的大小信息
outputSize: 1, // 剪切后的图片质量(0.1-1)
full: true, // 输出原图比例截图 props名full
outputType: 'png', // 裁剪生成额图片的格式
canMove: true, // 能否拖动图片
original: false, // 上传图片是否显示原始宽高
canMoveBox: true, // 能否拖动截图框
autoCrop: true, // 是否默认生成截图框
autoCropWidth: 150,
autoCropHeight: 150,
fixedBox: true // 截图框固定大小
},
// 保存头像修改
saveEditAvatar() {
this.editAvatarDialog = false
this.finish('blob')
},
// 放大/缩小
changeScale(num) {
num = num || 1;
this.$refs.cropper.changeScale(num);
},
// 左旋转
rotateLeft() {
this.$refs.cropper.rotateLeft();
},
// 右旋转
rotateRight() {
this.$refs.cropper.rotateRight();
},
// 保存上传图片
finish(type) {
if (type === 'blob') {
this.$refs.cropper.getCropBlob((data) => {
this.avatarURL = window.URL.createObjectURL(data)
//访问接口保存到数据库写这儿!
})
} else {
this.$refs.cropper.getCropData((data) => {
//访问接口保存到数据库写这儿!
})
}
},
// 实时预览函数
realTime(data) {
this.previews = data
},
// 下载图片
down(type) {
var aLink = document.createElement('a')
aLink.download = 'author-img'
if (type === 'blob') {
this.$refs.cropper.getCropBlob((data) => {
aLink.href = window.URL.createObjectURL(data)
aLink.click()
})
} else {
this.$refs.cropper.getCropData((data) => {
aLink.href = data;
aLink.click()
})
}
},
// 更换头像--上传本地图片
uploadImg(file) {
var _this = this;
var reader = new FileReader();
reader.onload = (e) => {
let data;
if (typeof e.target.result === 'object') {
// 把Array Buffer转化为blob 如果是base64不需要
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.raw)
// 转化为blob
reader.readAsArrayBuffer(file.raw);
},
.previewBox {
text-align: center;
margin-left: 60px;
}
.preview {
width: 150px;
height: 150px;
margin: 0px auto 20px auto;
border-radius: 50%;
border: 1px solid #ccc;
background-color: #ccc;
overflow: hidden;
}
.cropper {
width: 260px;
height: 260px;
}