如何使用Java将数组添加到MongoDB文档？

Question

我想使用java驱动程序在mongoDB中创建以下文档架构

{
  "_id": {
    "$oid": "513e9820c5d0d8b93228d7e8"
  },
  "suitename": "testsuite_name",
  "testname": "testcase_name",
  "milestones": [
    {
      "milestone_id": "359",
      "testplans": [
        {
          "pland_id": "965",
          "runs": [
            6985,
            5896
          ]
        },
        {
          "plan_id": "984",
          "runs": [
            9856,
            3684
          ]
        }
      ]
    }
  ]
}

我有以下代码

BasicDBObject testObject = new BasicDBObject();
BasicDBObject milestoneObject = new BasicDBObject();

testObject.put("suitename", testsuite);
testObject.put("testname", testcase);
testObject.put("milestones", new BasicDBObject("milestone_id", "2333"));
locations.insert(testObject);

但这并不像阵列那样产生里程碑.如何将里程碑添加为数组？我目前使用我的代码得到这个

{
  "_id": {
    "$oid": "513f93dac5d0e2439d34308e"
  },
  "suitename": "test_deployment_disable_client.TestDeploymentDisableClient",
  "testname": "test_deployment_disable_client",
  "milestones": {
    "milestone_id": "2333"
  }
}

Answer 1

换成这样的东西:

testObject.put("suitename", testsuite);
testObject.put("testname", testcase);         
List<BasicDBObject> milestones = new ArrayList<>();
milestones.add(new BasicDBObject("milestone_id", "2333"));
testObject.put("milestones", milestones);
locations.insert(testObject);

Answer 2

您可以创建一个接受 DBObjects 的 ArrayList。

List<DBObject> array = new ArrayList<DBObject>();

为数组内的对象添加创建的 DBObject，并将其添加到创建的数组对象中。

array.add(/* some object */);

最后，将数组放入主文档对象中。

document.put("milestones", array);