mongo query null?error?

我使用mongo作为数据源，我使用的MongoDB jdbc连接器是

https://bitbucket.org/dbschema/mongodb-jdbc-driver/src/master/

配置MongoDB连接是成功的。在添加视图的时候，左侧只能查询到MongoDB的集合，查询不到其字段内容。当我在sql语句编辑器中写入db.xxx.find()去执行时候显示执行成功，但是页面变空白。 请问我该如何使用MongoDB查询数据？

I use mongo as the data source, and the MongoDB jdbc connector I use is https://bitbucket.org/dbschema/mongodb-jdbc-driver/src/master/. The configuration of the MongoDB connection is successful. When adding a view, only the MongoDB collection can be queried on the left side. When I write db.xxx.find () in the sql statement editor to execute, it shows that the execution is successful, but the page becomes blank. How do I query data using MongoDB?

[xxxllluuu]

1：如果需要显示字段，jdbc驱动需要实现DatabaseMetaData的getColumns方法，你可以看一下该驱动是否实现。
2：页面边白可以检查下后台日志是否有异常

1: If you need to display the field, the jdbc driver needs to implement the getColumns method of DatabaseMetaData, and you can see if the driver is implemented. 2: page becomes blank you can check the log for exceptions

[RickyLoveFreedom]

you can use unityjdbc instead of that, the url is https://www.unityjdbc.com/