无法建立mongodb地图集连接

Question

我尝试在我的节点应用程序中使用URL连接MongoDB云地图集，但是得到了以下错误：-MongoDB错误: queryTxt ETIMEOUT cluster0-coypu.mongodb.net at QueryReqWrap.onresolve as oncomplete

我用以下方式连接：

mongoose.connect(process.env.MONGODB_URI || config.connectionString, { useCreateIndex: true, useNewUrlParser: true, useUnifiedTopology: true  });
mongoose.Promise = global.Promise;

为了检查是否建立了连接，请使用：-

mongoose.connect('config.connectionString',{
  useCreateIndex: true, 
  useNewUrlParser: true,
  useUnifiedTopology: true
}).then(
  () => {
    console.log("Database connection established!");
  },
  err => {
    console.log("Error connecting Database instance due to: ", err);
  }
);

其中config.connectionString包含在我的地图集中生成的URL。

Answer 1

mongoose
  .connect(uri, { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    log.info("successfully connected to db");
  })
  .catch((err) => {
    log.error("db connection failed " + err);
  });

只需确保URI格式正确