以下 JSON 物件（名為 的變數json_object）由兩個值組成
- 外圍設備
- 外設_測驗
兩者都是陣列：
{
"peripheral_devices": [
{
"_id": 1,
"active": -1,
"battery": "63",
"bt_firmware_version": "btv1.7.777",
"configured": 0,
"connected": 0,
"consumer_id": 22,
"create_date": 1635807323224,
"device_id": 72,
"discovered": 0,
"firmware_version": "v3.14",
"hardware_version": "null",
"icon": "icon_device_bp5",
"last_connect_date": 1640023710420,
"mac_address": "8C:DE:52:41:FC:57",
"model": "BP5 41FC57",
"name": "BP5",
"other_id": "-1",
"paired": -1,
"type_id": 1,
"update_date": 1635807323224,
"user_id": 13
},
{
"_id": 3,
"active": -1,
"battery": "90",
"bt_firmware_version": "1.0.0",
"configured": -1,
"connected": 0,
"consumer_id": 22,
"create_date": 1635807323239,
"device_id": 72,
"discovered": 0,
"firmware_version": "1.0.0",
"hardware_version": "5.0.0",
"icon": "icon_device_hs2s",
"last_connect_date": 1640022147928,
"mac_address": "00:4D:32:0C:B7:2C",
"model": "HS2S 11070",
"name": "HS2S",
"other_id": "-1",
"paired": -1,
"type_id": 3,
"update_date": 1635807323239,
"user_id": 13
}
],
"peripheral_tests": [
{
"_id": 199,
"consumer_id": 22,
"create_date": 1640020949760,
"end_date": 1640020949078,
"mood_id": -1,
"notes": "",
"start_date": 1640020939533,
"status_id": 1,
"type_id": 2,
"update_date": 0,
"user_id": -99
},
{
"_id": 198,
"consumer_id": 22,
"create_date": 1640020904183,
"end_date": -1,
"metric_bps": {,
"mood_id": -1,
"notes": "",
"start_date": 1640020863742,
"status_id": 1,
"type_id": 1,
"update_date": 0,
"user_id": -99
},
{
"_id": 197,
"consumer_id": 22,
"create_date": 1640020834664,
"end_date": 1640020828741,
"mood_id": -1,
"notes": "",
"start_date": 1640020822580,
"status_id": 1,
"type_id": 3,
"update_date": 0,
"user_id": -99
}
]
}
并得出如下：
JSONObject json_object = new JSONObject(post_data);
使用org.json.JSONArray.JSONArray：
JSONArray peripheral_devices = json_object.getJSONArray("peripheral_devices");
按預期作業，并從 .json 決議出一個 json 陣列json_object。但是，使用相同的技術獲取物件中的第二個陣列不會：
JSONArray json_tests = new JSONArray("peripheral_tests");
拋出例外：
A JSONArray text must start with '[' at 1 [character 2 line 1]
為什么？我不明白什么？
uj5u.com熱心網友回復：
你編碼
JSONArray json_tests = new JSONArray("peripheral_tests");
以字串這是JSON資料和構造peripheral_tests不JSON陣列，讓peripheral_tests你需要得到它json_object像
JSONArray peripheral_devices = json_object.getJSONArray("peripheral_tests");
uj5u.com熱心網友回復：
輸入 JSON 無效，根據JSON Lint ...這可能會導致意外結果：
Error: Parse error on line 69:
..."metric_bps": { , "mood_id": -1,
----------------------^
Expecting 'STRING', '}', got ','
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