vue Axios 向后端提交参数 请求头 json 方式（Content-Type: application/json; charset=UTF-8）

 import axios from 'axios'
    export default {
        name: 'basetable',
        data() {
            return {
                tableData: [],
                pageData:{
                    currentPage:1,
                    total:0,
                    pageSize:20,
                }
            }
        }, mounted() {
           this.getTableData();
        },
        methods: {
            getTableData(){ import axios from 'axios'
    export defau