vue文件上传不能大于10mb怎么实现

本教程操作环境：Windows10系统、vue3版、DELL G3电脑

vue文件上传不能大于10mb怎么实现？

vue中，Upload上传组件el-upload的使用-zip格式，大小不超过10M & store中获取和保存token

效果

代码

index.vue

结构

 <el-form :model="form" class="form" ref="ruleForm" :rules="rules" label-width="120px">
    <el-form-item label="上传程序包：" prop="fileName">
        <el-upload :action="upload.url" :on-success="onSuccess" :on-error="onError" :headers="upload.header" :beforeUpload="beforeUpload">
            <el-button type="mini">上传</el-button>
            zip格式，大小不超过10M
        </el-upload>
    </el-form-item>
    <el-form-item>
        <el-button type="primary" @click="onSubmit">立即添加</el-button>
        <el-button @click="backToList">取消</el-button>
    </el-form-item>
</el-form>

逻辑

<script>import store from '@/store/index';export default {
  data() {
    return {
      upload: {
        url: `${App.apiConfig.service}/dcp-manage/dcp/compile/manage/service/editor/version/upload`,
        header: {
          token: store.state.token        },
        resData: {}
      },
      form: {
        nameDesc: '',
        age:''
      },
      rules: {
        nameDesc: [
          { required: true, message: '不能为空', trigger: 'blur' }
        ],          
        fileName: [
          { required: true, message: '不能为空', trigger: 'blur' }
        ]
      }        
    }
  },    
  methods: {
    beforeUpload(file) {
      const sizeLimit = file.size / 1024 / 1024 > 10
      if (sizeLimit) {
        this.$message.warning('上传文件大小不能超过 10MB!')
      }
      const fileFamart = file.name.split('.')[file.name.split('.').length - 1];
      if (fileFamart !== 'zip') {
        this.$message.warning('必须上传zip格式的文件!')
      }
      return !sizeLimit && fileFamart === 'zip'
    },
    onSuccess(data) {
      this.form = {
        ...this.form,
        ...data.data  // 把上传文件添加到form中
      }
      this.$message.success('上传成功!');
    },
    onError() {
      this.$message.error('上传失败!');
    },
    // 立即添加
    onSubmit() {
      this.$refs.ruleForm.validate(valid => {  // 校验form表单
        if (!valid) return false;

        ajax.post('cs_addVersion', this.form).then(res => {
          this.$message.success('新增成功!');
          this.backToList();  // 新增成功后返回
        }, err => {
          this.$message.error('新增失败!');
        });
      });
    },
    // 取消
    backToList() {
      this.$router.back();
    }      
  }}

存储

src\store\index.js

/*
 * @Descripttion:
 * @version:
 * @Author:
 * @Date: 2022-06-04 09:34:23
 * @LastEditors: Please set LastEditors
 * @LastEditTime: 2022-06-04 11:20:26
 */import Vue from 'vue';import Vuex from 'vuex';Vue.use(Vuex);// 状态const state = {
  token: sessionStorage.getItem('token'),
  userInfo: JSON.parse(sessionStorage.getItem('userInfo')),}// mutations用来操作stateconst mutations = {
  // 保存token
  SAVE_TOKEN (state, token) {
    sessionStorage.setItem('token', token);
    state.token = token;
  },
  // 保存用户相关信息
  SAVE_USERINFO (state, userInfo) {
    sessionStorage.setItem('userInfo', JSON.stringify(userInfo));
    state.userInfo = userInfo;
  },}export default new Vuex.Store({
  state,
  mutations})