数据未出现在视图中的表中。已使用控制台确认从数据库导入数据。 在此处输入图像说明

如果仅将其用作 list.map()，则会出现错误，指出它不是函数。所以 list && list.length > 0 ？我正在使用 list.map((e)。 或者我必须修改 const [list, setList] = useState 代码部分？

import React, { useEffect, useState } from "react";
import axios from 'axios';
import Navbar from './Navbar';
import Box from '@mui/material/Box';
import Button from '@mui/material/Button';
import Table from '@mui/material/Table';
import TableBody from '@mui/material/TableBody';
import TableCell from '@mui/material/TableCell';
import TableContainer from '@mui/material/TableContainer';
import TableHead from '@mui/material/TableHead';
import TableRow from '@mui/material/TableRow';
import Paper from '@mui/material/Paper';

export default function Community() {

    const [list, setList] = useState([{
        inputData: {
            post_id: '',
            title: '',
            writer: ''
        },
    }]);

    useEffect(() => {
        axios.get('http://localhost:5000/post/community').then((res) => {
            console.log("성공");
            console.log(res.data);
            setList(res.data);
        })
    }, [])

    return (
        <div>
            <Navbar />
            <Box>
                <Button sx={{ fontWeight: 'bold' }} href="/newpost">게시글 등록</Button>
            </Box>
            <TableContainer component={Paper}>
                <Table aria-label="simple table">
                    <TableHead>
                        <TableRow>
                            <TableCell sx={{ fontWeight: 'bold' }}>Post_id</TableCell>
                            <TableCell sx={{ fontWeight: 'bold' }}>Title</TableCell>
                            <TableCell sx={{ fontWeight: 'bold' }} align="right">Writer</TableCell>
                        </TableRow>
                    </TableHead>
                    {list && list.length > 0 ? list.map((e) => {
                        return (
                            <TableBody>
                                <TableRow key={e.post_id}>
                                    <TableCell component="th" scope="row">{e.post_id}</TableCell>
                                    <TableCell align="right">{e.title}</TableCell>
                                    <TableCell align="right">{e.writer}</TableCell>
                                </TableRow>
                            </TableBody>
                        )
                    }) : ""}
                </Table>
            </TableContainer>
        </div>
    );

}