避免使用“不赞成使用当前的URL字符串解析器".通过将useNewUrlParser设置为true发出警告 [英] Avoid "current URL string parser is deprecated" warning by setting useNewUrlParser to true

问题描述

我有一个数据库包装器类，用于建立与某些MongoDB实例的连接:

I have a database wrapper class that establishes a connection to some MongoDB instance:

async connect(connectionString: string): Promise<void> {
        this.client = await MongoClient.connect(connectionString)
        this.db = this.client.db()
}

这给了我一个警告:

(节点:4833)DeprecationWarning:不建议使用当前URL字符串解析器，并将在以后的版本中将其删除.要使用新的解析器，请将选项{useNewUrlParser:true}传递给MongoClient.connect.

(node:4833) DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version. To use the new parser, pass option { useNewUrlParser: true } to MongoClient.connect.

connect()方法接受MongoClientOptions实例作为第二个参数.但是它没有名为useNewUrlParser的属性.我还尝试在连接字符串中设置这些属性，如下所示:mongodb://127.0.0.1/my-db?useNewUrlParser=true，但对那些警告没有影响.

The connect() method accepts a MongoClientOptions instance as second argument. But it doesn't have a property called useNewUrlParser. I also tried to set those property in the connection string like this: mongodb://127.0.0.1/my-db?useNewUrlParser=true but it has no effect on those warning.

那么我该如何设置useNewUrlParser删除那些警告?这对我来说很重要，因为脚本应作为cron运行，并且这些警告会导致垃圾邮件垃圾邮件.

So how can I set useNewUrlParser to remove those warning? This is important to me since the script should run as cron and those warnings result in trash-mail spam.

我正在使用版本3.1.0-beta4中的mongodb驱动程序以及3.0.18中的相应@types/mongodb软件包.它们都是使用npm install的最新版本.

I'm using mongodb driver in version 3.1.0-beta4 with corresponding @types/mongodb package in 3.0.18. Both of them are the latest avaliable using npm install.

使用旧版本的mongodb驱动程序:

Using an older version of mongodb driver:

"mongodb": "~3.0.8",
"@types/mongodb": "~3.0.18"

推荐答案

检查您的mongo版本:

mongo --version

如果使用版本> = 3.1.0，请将您的mongo连接文件更改为->

If you are using version >= 3.1.0, change your mongo connection file to ->

MongoClient.connect("mongodb://localhost:27017/YourDB", { useNewUrlParser: true })

或您的猫鼬连接文件--

or your mongoose connection file to ->

mongoose.connect("mongodb://localhost:27017/YourDB", { useNewUrlParser: true });

理想情况下，它是版本4的功能，但v3.1.0及更高版本也支持该功能.请查看 MongoDB GitHub 详细信息.

Ideally, it's a version 4 feature, but v3.1.0 and above are supporting it too. Check out MongoDB GitHub for details.

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