使用此代码之前的帖子id未显示

SELECT id, title FROM posts WHERE ...

app.get('/posts', (req, res) => {
    // 假设db是数据库连接对象
    db.query('SELECT id, title FROM posts', (err, results) => {
        if (err) throw err;
        res.json(results);
    });
});

import React, { useEffect, useState } from 'react';

function Posts() {
    const [posts, setPosts] = useState([]);

    useEffect(() => {
        fetch('/posts')
            .then(response => response.json())
            .then(data => setPosts(data));
    }, []);

    return (
        <div>
            {posts.map(post => (
                <div key={post.id}>
                    <h2>{post.title}</h2>
                    <p>Post ID: {post.id}</p>
                </div>
            ))}
        </div>
    );
}

export default Posts;