我正在使用node.js和express开发一个网页。我开发了一个表单，用户可以在其中填写详细信息并上传图像。图像文件应存储在目录中，而路径存储在数据库中。
我正在使用 Node.js 和 mongodb 数据库。图像已成功存储在预期目录中，但路径并未存储在数据库中，而是存储在路径中，我找到了将路径存储在数据库中的代码(/posts/${image.name} 对于每个上传的文件.请问我该如何实现这一目标？
{
//Index.js
const path = require('path');
const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const Post = require('./database/models/Post');
const fileUpload = require("express-fileupload");
const app = new express();
mongoose.connect('mongodb://localhost/node-js-test-blog', { useNewUrlParser: true })
app.use(express.static('public'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(fileUpload());
//the route responsible for storing the image in posts directory and the path in the database
app.post('/posts/store', (req, res) => {
const { image } = req.files
image.mv(path.resolve(__dirname, 'public/posts', image.name), (error) => {
Post.create({
...req.body,
image: '/posts/${image.name}'//this code is what I get in the database instead of the path
}, (error, post) => {
res.redirect("/");
});
})
});
app.listen(4000, () => {
console.log("application listening on port 4000")
})
}
//model
const mongoose = require('mongoose');
//collections represents entities in the application e.g users, posts, etc
//schema represents how to structure in the collections
const PostSchema = new mongoose.Schema({
description: String,
title: String,
content: String,
username: String,
image: String,
createdAt: {
type: Date,
default: new Date()
}
});
//the model itself is what will communicate with the database
const Post = mongoose.model('Post', PostSchema);
module.exports = Post;
}
//the code to display the (image) view from the database using node.js directive
<style="background-image: url('{{post.image}}')">
}
最佳答案
使用${}时需要使用反引号，否则字符串将按字面解释:
更改此:
image: '/posts/${image.name}'
对此:
image: `/posts/${image.name}`
关于javascript - 如何使用 Node.js 将图像路径保存在数据库中？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57750679/