MongoDB：使用Java驱动程序获取数组字段的元素

Question

I have the following BasicDBObject object:

     {
          "name":"joe"

           "jobs":
                  [
                       {"adress" : "adress1"
                        "years": 2},
                       {"adress" : "adress2"
                       "years"  :3}

     }

I want to get the "jobs" field and enter the "adress" field and "years" field

I traying somethink like ....object.get("jobs") ....get "adress" and " years" fields.

please help

Answer 1

Use BasicDBList to read the array inside the "jobs". Then iterate over the array to get each object.

BasicDBList jobsArr = (BasicDBList) object.get("jobs");