Description of the problem: the database is queried for a field json type data, and error java.lang.ClassCastException input step in json: [B can not be cast to java.lang.String
Cause of the problem: data from a database query is not the type String, but binary arrays, so an error when parsing json.
Solution: In the step of selecting a field in the Type field set to a String, and the Binary to Normal can be provided.
