1.安装axios

npm install axios --save
2.在main.js中引入
import { createApp } from 'vue'
import axios from 'axios'
import VueAxios from 'vue-axios'
const app = createApp(App)
app.config.globalProperties.$http = axios;
app.use(VueAxios, axios)

4.在需要请求数据的文件里导入axios

import axios from 'axios'

5.请求

<script lang="ts" setup>
    import axios from 'axios';
    const dataSource: Ref<DataItem[]> = ref([]);
    // 获取表格数据
    const getTableList = () => {
       axios.get('http://127.0.0.1:5173/data/userList.json').then((res) => {
        console.log(res, 'res');
        if (res.data.data.sucess == 200) {
          dataSource.value = res.data.data.userList;
          // data = res.data.data.userList;
         } else {
          alert('数据获取失败');
        }
  });
};
</script>