vue项目ElementUI组件中el-upload组件与图片裁剪功能组件结合使用

本是古典何须时尚 2022-12-28 09:16 261阅读 0赞

vue项目ElementUI组件中el-upload组件与裁剪功能组件结合使用  
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  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ_size_16_color_FFFFFF_t_70 1]

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：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ_size_16_color_FFFFFF_t_70 2]  
关于裁剪组件，请看[裁剪组件链接][Link 1]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>
                            
                        </el-upload>
                        <my-cropper ref="myCropper" @getFile="getFile" @upAgain="upAgain"></my-cropper>
                    </el-form-item>

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ_size_16_color_FFFFFF_t_70 3]  
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>
                            
                        </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>

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ_size_16_color_FFFFFF_t_70]: /images/20221120/b8279d17755c43e3b504c7059e9c0150.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/2020121613195484.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ==,size_16,color_FFFFFF,t_70
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[Link 1]: https://blog.csdn.net/weixin_44994731/article/details/111245633
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20201216133522983.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDk5NDczMQ==,size_16,color_FFFFFF,t_70