vue项目ElementUI组件中el-upload组件与图片裁剪功能组件结合使用详解
时间：2023-03-02 09:34:49|栏目：vue|点击： 次
vue项目ElementUI组件中el-upload组件与裁剪功能组件结合使用，供大家参考，具体内容如下
如下图所示，点击上传组件，选择文件后，会立马弹出图片裁剪功能组件的页面
问题描述：
1.在使用upload组件中，如果修改fileList中的内容，浏览器会报错
2.获取上传的文件，传递给图片裁剪组件（在on-change中获取文件并传递个裁剪组件）
3.要获取裁剪后的图片即File文件（将裁剪后的图片返回出去）
4.获取到裁剪后的file调用上传的接口
由于el-upload组件默认使用的是
“选取文件后立即进行上传”，可通过auto-upload属性进行修改，将auto-upload设置为false；
同时也不显示已上传的文件列表，通过show-file-list属性修改，将show-file-list设置为false。
获取上传的组件说明：使用elementUI 提供的方法 on-change,获取已上传的组件
elementUI中upload组件部分属性如下：
关于裁剪组件，请看裁剪组件链接文档
本案例主要代码如下：
<el-form-item label="公司logo" prop="logo"> <el-upload class="avatar-uploader" ref="upload" :action="uploadLogo" :show-file-list="false" :file-list="photoList" :on-change="changePhotoFile" :on-success="handleAvatarSuccess" :before-upload="beforeAvatarUpload" :headers="headerObj" :auto-upload="false" > <img v-if="imageUrl" :src="imageUrl" class="avatar"> <div v-else class=" avatar-uploader-icon"> <div> <i class="my-icon-plus"></i> <p class="my-icon-word">添加</p> </div> </div> <!--<i v-else class="el-icon-plus avatar-uploader-icon"></i>--> </el-upload> <my-cropper ref="myCropper" @getFile="getFile" @upAgain="upAgain"></my-cropper> </el-form-item>
对应的方法
changePhotoFile(file, fileList){
if (fileList.length > 0) {
this.photoList = [fileList[fileList.length - 1]]
}
this.handleCrop(file);
},
handleCrop(file){
this.$nextTick(()=>{
this.$refs.myCropper.open(file.raw || file)
})
},
// 点击弹框重新时触发
upAgain(){
this.$refs['upload'].$refs["upload-inner"].handleClick();
},
getFile(file){
const formData = new FormData();
formData.append("file",file)
uploadSelfCompanyLogo(formData).then(res =>{
if (res.code === 0) {
this.companyInfo.logo = res.filename;
this.companyInfo.imageUrl = res.url;
this.imageUrl = res.url;
//上传成功后，关闭弹框组件
// this.handleCrop(file);
this.$refs.myCropper.close()
} else {
this.$message.error('上传出错');
}
})
},
整个vue代码，包含上面的代码
<template>
<div class="form-out">
<el-form
:rules="rules"
:model="companyInfo"
class="form"
ref="registForm"
label-position="left"
label-width="92px"
>
<div class="personal-info">
<p class="tag">
<span class="light-slash">/</span>
<span class="slash">/</span>
<span class="tag-main">公司信息</span>
<span class="slash">/</span>
<span class="light-slash">/</span>
</p>
<el-form-item label="公司全称" prop="companyName">
<span class="com-name">{{companyInfo.companyName}}</span>
</el-form-item>
<el-form-item label="公司简称" prop="shortened">
<el-input
style="width: 540px;height: 42px"
v-model="companyInfo.shortened"
placeholder="请填写当前公司简称"
clearable
></el-input>
</el-form-item>
<el-form-item label="行业领域" prop="industry">
<el-select
class="inputSelect"
v-model="companyInfo.industry"
placeholder="请选择行业领域"
clearable
>
<el-option
v-for="item in industryOptions"
:key="item.value"
:label="item.label"
:value="item.value"
></el-option>
</el-select>
</el-form-item>
<el-form-item label="公司规模" prop="scale">
<el-select
class="inputSelect"
v-model="companyInfo.scale"
placeholder="请选择公司规模"
clearable
>
<el-option
v-for="item in scaleOptions"
:key="item.value"
:label="item.label"
:value="item.value"
></el-option>
</el-select>
</el-form-item>
<el-form-item label="公司性质" prop="nature">
<el-select
v-model="companyInfo.nature"
placeholder="请选择公司性质"
clearable
>
<el-option
v-for="item in natureOptions"
:key="item.value"
:label="item.label"
:value="item.value"
></el-option>
</el-select>
</el-form-item>
<el-form-item label="公司logo" prop="logo">
<el-upload
class="avatar-uploader"
ref="upload"
:action="uploadLogo"
:show-file-list="false"
:file-list="photoList"
:on-change="changePhotoFile"
:on-success="handleAvatarSuccess"
:before-upload="beforeAvatarUpload"
:headers="headerObj"
:auto-upload="false"
>
<img v-if="imageUrl" :src="imageUrl" class="avatar">
<div v-else class=" avatar-uploader-icon">
<div>
<i class="my-icon-plus"></i>
<p class="my-icon-word">添加</p>
</div>
</div>
<!--<i v-else class="el-icon-plus avatar-uploader-icon"></i>-->
</el-upload>
<my-cropper ref="myCropper" @getFile="getFile" @upAgain="upAgain"></my-cropper>
</el-form-item>
<el-form-item label="公司简介" prop="intro">
<el-input type="textarea" v-model="companyInfo.intro"></el-input>
</el-form-item>
</div>
<div class="submit">
<el-button
class="next-button"
type="primary"
size="medium"
:class="[nextFlag ?'next-button-bg-blue':'next-button-bg-grew']"
@click="companyRegister">
确定
</el-button>
<span class="return-back" @click="returnBackFun"> 返回上一步 </span>
</div>
</el-form>
</div>
</template>
<script>
import debounce from "../../../common/debounce";
import DataDict from "../../../common/DataDict";
import {createCompanyBase,uploadSelfCompanyLogo} from '../../../network/request'
import MyCropper from "./cropper.vue"
export default {
name: "ComFormThree",
components:{MyCropper},
data(){
//信用代码验证
var checkCreditCode = (rules, value, callback) => {
let position = new RegExp(/^([0-9A-HJ-NPQRTUWXY]{2}\d{6}[0-9A-HJ-NPQRTUWXY]{10}|[1-9]\d{14})$/);
if(!position.test(value)) {
callback(new Error('请输入正确的统一社会信用代码！'));
} else {
callback();
}
}
return{
nextFlag:false,
uploadLogo: process.env.VUE_APP_BASE_URL + '/business/pub/iface/uploadCompanyLogo',//上传共公司logo地址
imageUrl: '',
companyInfo: {
companyName: '',
logo:'',
creditCode: '',
shortened: '',
industry:null,
scale:null,
nature:null,
companyId:null,
imageUrl:'',
intro:''
},
photoList:[],
industryOptions:DataDict.industryOptions,//行业领域数据字典
scaleOptions:DataDict.scaleOptions,//公司规模数据字典
natureOptions:DataDict.natureOptions,//公司性质数据字典
rules: {
companyName:[
{ required: true},
],
creditCode:[
{ required: true, message: '请输入统一社会信用代码', trigger: 'blur' },
{ validator: checkCreditCode, trigger: 'blur' }
],
logo:[{ required: true},],
intro:[{ required: true, message: '请填写公司简介',trigger: 'blur' },],
shortened:[{ required: true, message: '请填写公司简称',trigger: 'blur'},],
industry:[{ required: true,
message: '请选择行业领域',
trigger: 'change'},],
scale: [
{
required: true,
message: '请选择公司规模',
trigger: 'change'
}
],
nature: [
{
required: true,
message: '请选择公司性质',
trigger: 'change'
}
],
},
}
},
mounted() {
// console.log("this.$store.personInfo.companyName",this.$store.getters.personInfo.companyName);
this.companyInfo.companyName = this.pCompanyName;
},
activated() {
this.companyInfo.companyName = this.pCompanyName;
},
computed:{
pCompanyName(){
return this.$store.getters.personInfo.companyName;
}
},
watch:{
companyInfo: {
handler(val){
(val.companyName !== ''
&& val.creditCode !=='' && val.creditCode.length>0
&& val.logo !== '' && val.logo.length>0
&& val.shortened !== '' && val.shortened.length >0
&& val.industry !== null
&& val.nature !== null
&& val.scale != null
)
? this.nextFlag = true : this.nextFlag = false;
},
deep: true
}
},
/*mounted() {
console.log("uploadLogo====",this.uploadLogo);
},*/
methods:{
//上传图片触发
handleCrop(file){
this.$nextTick(()=>{
this.$refs.myCropper.open(file.raw || file)
})
},
// 点击弹框重新时触发
upAgain(){
this.$refs['upload'].$refs["upload-inner"].handleClick();
},
getFile(file){
const formData = new FormData();
formData.append("file",file)
uploadSelfCompanyLogo(formData).then(res =>{
if (res.code === 0) {
this.companyInfo.logo = res.filename;
this.companyInfo.imageUrl = res.url;
this.imageUrl = res.url;
//上传成功后，关闭弹框组件
// this.handleCrop(file);
this.$refs.myCropper.close()
} else {
this.$message.error('上传出错');
}
})
// this.$refs.upload.submit();
},
companyRegister:debounce(function () {
this.doCompanyRegister();
},500),
//下一步
doCompanyRegister(){
this.$store.commit('addcompanyObjInfo',this.companyInfo);
createCompanyBase(this.companyInfo).then(res =>{
if (res.code === 0 && res.msg === 'success') {
console.log("创建成功");
/*this.$message.success('公司创建成功~');
this.$router.push("/client/auditPage");*/
}
})
},
//头像上传成功之后的方法,进行回调
handleAvatarSuccess(res,file) {
if (res.code === 0) {
this.companyInfo.logo = res.filename;
this.companyInfo.imageUrl = res.url;
this.imageUrl = res.url;
// this.handleCrop(file);
} else {
this.$message.error('上传出错');
}
},
//上传图片时会被调用
changePhotoFile(file, fileList){
if (fileList.length > 0) {
this.photoList = [fileList[fileList.length - 1]]
}
this.handleCrop(file);
},
//头像上传之前的方法
beforeAvatarUpload(file) {
const isJPG =
file.type === 'image/jpeg' ||
'image/jpg' ||
'image/gif' ||
'image/png';
const isLt6M = file.size / 1024 / 1024 < 6;
if (!isJPG) {
this.$message.error(
'上传头像图片只能是 JPG、JPEG、GIF或PNG 格式!'
);
}
if (!isLt6M) {
this.$message.error('上传头像图片大小不能超过 6MB!');
}
console.log("275==",file)
return isJPG && isLt6M;
},
//返回上一步
returnBackFun(){
let obj = {formType:3}
this.$emit("returnBackTwo",obj)
}
}
}
</script>
<style scoped lang="less">
.form-out{
width: 1100px;
border-radius: 10px;
background: #fff;
.form {
padding: 40px 120px;
margin: 0 auto;
display: table;
.tag {
text-align: center;
margin: 0 0 40px 0;
.tag-main{
display: inline-block;
font-size:16px;
font-family:PingFangSC-Semibold,PingFang SC;
font-weight:600;
color:#222222;
padding: 0 10px
}
.slash {
color: #437FFF;
font-weight: bold;
font-size: 16px;
}
.light-slash {
color: #437fff;
font-weight: bold;
font-size: 16px;
opacity: 0.5;
}
}
.com-name{
display: inline-block;
/*width:224px;*/
height:22px;
font-size:16px;
font-family:PingFangSC-Regular,PingFang SC;
font-weight:400;
color:rgba(51,51,51,1);
line-height:22px;
}
.avatar {
width: 80px;
height: 80px;
/* border-radius: 30px;*/
vertical-align: middle;
}
.avatar-desc {
color: #999;
font-size: 12px;
padding-left: 10px;
}
.tag-other {
margin-top: 40px;
}
.submit {
display: flex;
justify-content: center;
margin-top: 40px;
.submit-button {
background: #437FFF;
width: 390px;
margin-top: 20px;
font-size: 22px;
}
.next-button{
width:140px;
height:42px;
border-radius:6px;
font-size:16px;
color: #999999;
border: 1px solid transparent;
font-family:PingFangSC-Regular,PingFang SC;
font-weight:400;
}
.return-back{
display: inline-block;
height:42px;
line-height: 42px;
width:70px;
font-size:14px;
font-family:PingFangSC-Medium,PingFang SC;
font-weight:500;
color:rgba(102,102,102,1);
margin-left: 50px;
&:hover{
cursor: pointer;
}
}
.next-button-bg-grew{
background:#E5E5E5;
}
.next-button-bg-blue{
background:#437FFF;
color:#FFFFFF
}
}
}
}
</style>
<style scoped>
.el-input__inner {
width:540px;
height:42px;
background:rgba(249,249,249,1);
border-radius:2px;
border: 1px solid transparent;
}
.el-form-item__label{
font-size:16px;
font-family:PingFangSC-Regular,PingFang SC;
font-weight:400;
color:#222222;
}
input::-webkit-input-placeholder {
height:21px;
font-size:15px;
font-weight:400;
color:rgba(204,204,204,1);
line-height:21px;
}
input::-ms-input-placeholder {
height:21px;
font-size:15px;
font-weight:400;
color:rgba(204,204,204,1);
line-height:21px;
}
.my-icon-plus{
background: url("../../../assets/img/upload/upload_plus.png") no-repeat;
background-size: 24px 24px;
width: 24px;
height: 24px;
display: inline-block;
}
.my-icon-word{
height:17px;
font-size:12px;
font-family:PingFangSC-Regular,PingFang SC;
font-weight:400;
color:#437FFF;
line-height:17px;
}
</style>
<style >
.form-out .avatar-uploader .el-upload {
/*border: 1px dashed #d9d9d9;*/
border: 1px dashed #437FFF;
border-radius: 6px;
cursor: pointer;
position: relative;
/* overflow: hidden;*/
}
.form-out .avatar-uploader .el-upload:hover {
border-color: #409EFF;
}
.form-out .avatar-uploader-icon {
font-size: 28px;
color: #8c939d;
width: 80px;
height: 80px;
text-align: center;
display: flex;
align-items: center;
justify-content: center;
}
.form-out .avatar {
width: 80px;
height: 80px;
display: block;
}
</style>
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本文标题：vue项目ElementUI组件中el-upload组件与图片裁剪功能组件结合使用详解
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