javascript - 这是什么错误{ MongoNetworkError : connection 0 To 127. 0.0.1 :8080 closed}?

Question

这是我的代码。我想连接到 Mongodb，但出现 {MongoNetworkError: connection 0 to 127.0.0.1:27017 close} 错误。

 MongoClinet.connect("mongodb://127.0.0.1:27017/demo",{ useNewUrlParser: true},(err,db)=>{
        if(err)
            console.log(err.toString());
        else{
            console.log("Connected");
        }
    });


MongoNetworkError: connection 0 to localhost:27017 closed
MongoNetworkError: connection 1 to localhost:27017closed
MongoNetworkError: connection 2 to localhost:27017 closed

Answer 1

删除 mongod.lock 并(重新)启动 mongod 服务器。