我正在使用expressjs,mongoose和ejs模板引擎创建一个应用程序。 我在保存收藏集时遇到以下问题:
{"message":"Invalid namespace specified 'ecommerce\";.roleresources'"}
这是我的输入脚本app.js文件:
const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const expressLayout = require('express-ejs-layouts');
const config = require('./config');
const adminRoutes = require('./routes/admin');
const app = express();
// set the view engine to ejs
app.set('view engine', 'ejs');
app.set('views', 'views');
app.set('layout', 'layout/shop');
app.set("layout extractScripts", true)
app.use(bodyParser.urlencoded({ extended: false }));
app.use(expressLayout);
app.use(express.static(path.join(__dirname, 'public')));
app.use('/admin', adminRoutes);
mongoose.Promise = global.Promise;
mongoose
.connect(config.mongodb_uri, { useNewUrlParser: true, useUnifiedTopology: true, useCreateIndex:true } )
.then(result => {
console.log(result);
app.listen(config.port || 3000);
})
.catch(err => {
process.exit();
});
这些是config.js文件:
const dotenv = require('dotenv');
dotenv.config();
module.exports = {
port:process.env.PORT,
mongodb_uri: process.env.MONGODB_URI
}
这是我的.env文件:
PORT=3000
MONGODB_URI="mongodb://localhost:27017/ecommerce";
和模型文件是:
const mongoose = require("mongoose");
const Schema = mongoose.Schema;
const roleResourceSchema = Schema({
name:{
type:String,
required:true
},
code:{
type:String,
required:true
},
url:{
type:String,
required:true
}
});
roleResourceSchema.index({name:1, code:1,url:1}, {unique:true});
module.exports = mongoose.model('RoleResource', roleResourceSchema);
最后是我的控制器:
const RoleResource = require('../model/roleResource');
exports.getLogin = (req, res, next) => {
const resource = new RoleResource({
name:"All",
code:"all",
url:"*",
});
resource.save()
.then(data => {
res.send(data);
}).catch(err => {
res.status(500).send({
message: err.message
});
});
};
并且如果在我的app.js中对mongodb url进行了硬编码,那么它将开始工作(已修改的app.js,用于保存猫鼬)
const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const expressLayout = require('express-ejs-layouts');
const config = require('./config');
const adminRoutes = require('./routes/admin');
const app = express();
// set the view engine to ejs
app.set('view engine', 'ejs');
app.set('views', 'views');
app.set('layout', 'layout/shop');
app.set("layout extractScripts", true)
app.use(bodyParser.urlencoded({ extended: false }));
app.use(expressLayout);
app.use(express.static(path.join(__dirname, 'public')));
app.use('/admin', adminRoutes);
mongoose.Promise = global.Promise;
mongoose
.connect("mongodb://localhost:27017/ecommerce", { useNewUrlParser: true, useUnifiedTopology: true, useCreateIndex:true } )
.then(result => {
console.log(result);
app.listen(config.port || 3000);
})
.catch(err => {
process.exit();
});
如何动态使用.env文件中的mongo db URL
答案 0 :(得分:0)
出现错误的原因:
仅仅是因为您在.env
文件即MONGODB_URI="mongodb://localhost:27017/ecommerce";
中编写MongoDB URI的方式
dotEnv
包会将MONGODB_URI
的值解析为mongodb://localhost:27017/ecommerce";
,请注意在位置处的双引号("
)和分号(;
)。最后,他们不应该在那里,这就是导致错误的原因。
修复:
您所需要做的就是删除分号,然后一切都会正常:MONGODB_URI="mongodb://localhost:27017/ecommerce"