Question

根据我的阅读，下面的例子是JSONArray。

我最为困惑的是添加顶部＆＃34;标题＆＃34;信息和嵌套＆＃34;位置＆＃34; JSONObject作为最后一个属性。我知道如何创建一个基本的JSONObject，以及一个基本的JSONArray，但这个组合的实际上是让我失望。

{
    "source": "REMOTE",
    "msgType": "event",
    "properties": [
        {
            "IMEI": {
                "string": "1234567890"
            }
        },
        {
            "My Time": {
                "string": "5/4/2016 12:00:00"
            }
        },
        {
            "Position": {
                "geographicPosition": {
                    "latitude": 34.89767579999999,
                    "longitude": -72.03648269999997
                }
            }
        }
    ]
}

Answer 1

试试这个：

      try {
            JSONObject mainObject = new JSONObject();
            mainObject.put("source", "REMOTE");
            mainObject.put("msgType", "event");
            JSONArray mainArray = new JSONArray();

            JSONObject arrayObj = new JSONObject();
            JSONObject temp = new JSONObject();
            temp.put("string", "1234567890");
            arrayObj.put("IMEI", temp);
            mainArray.put(arrayObj);

            arrayObj = new JSONObject();
            temp = new JSONObject();
            temp.put("string", "5/4/2016 12:00:00");
            arrayObj.put("My Time", temp);
            mainArray.put(arrayObj);

            arrayObj = new JSONObject();
            temp = new JSONObject();
            JSONObject temp1 = new JSONObject();
            temp1.put("latitude",34.89767579999999);
            temp1.put("longitude",-72.03648269999997);
            temp.put("geographicPosition", temp1);
            arrayObj.put("Position", temp);
            mainArray.put(arrayObj);

            mainObject.put("properties", mainArray);
            // mainOject is your required Json 
            System.out.println(mainObject);
        } catch (Exception e) {
            e.printStackTrace();
        }

Answer 2

你也可以这样做..

user_id

Answer 3

尝试伟大的oracle documentation。他们有一个示例，展示了如何创建数组。这是他们想要创建的模板：

{
     "firstName": "John", "lastName": "Smith", "age": 25,
     "address" : {
         "streetAddress": "21 2nd Street",
         "city": "New York",
         "state": "NY",
         "postalCode": "10021"
     },
     "phoneNumber": [
         { "type": "home", "number": "212 555-1234" },
         { "type": "fax", "number": "646 555-4567" }
     ]  
}

他们是如何做到的：

\\ You can pass `null` to the `config`
JsonBuilderFactory factory = Json.createBuilderFactory(config);
 JsonObject value = factory.createObjectBuilder()
     .add("firstName", "John")
     .add("lastName", "Smith")
     .add("age", 25)
     .add("address", factory.createObjectBuilder()
         .add("streetAddress", "21 2nd Street")
         .add("city", "New York")
         .add("state", "NY")
         .add("postalCode", "10021"))
     .add("phoneNumber", factory.createArrayBuilder()
         .add(factory.createObjectBuilder()
             .add("type", "home")
             .add("number", "212 555-1234"))
         .add(factory.createObjectBuilder()
             .add("type", "fax")
             .add("number", "646 555-4567")))
     .build();

以编程方式创建一个复杂的JSONArray？

3 个答案: