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嗨，我有這個commplex JSON。我只想從這個JSON中得到一些值。假設我想從這個json得到「答案」字段值。在java中獲取這些值最簡單的方法是什麼？使用傑克遜或GSON方法是最簡單的方法嗎？在java中訪問json值的最簡單方法
JSON
[{
"Id": 1,
"description": "Contact Information",
"type": "hidden",
"subquestions1": [{
"Id": "a",
"description": "ID",
"name": "id",
"patternType": "alphanumeric",
"required": "false",
"answers": "mb999"
}, {
"Id": "b",
"description": "Name",
"type": "text",
"name": "user",
"patternType": "text",
"required": "false",
"length": 100,
"answers": "Pope"
}, {
"Id": "c",
"description": "Telephone",
"type": "text",
"length": 10,
"name": "telephone",
"patternType": "numeric",
"required": "false"
}, {
"Id": "d",
"description": "Business Unit",
"type": "text",
"length": 10,
"name": "businessUnit",
"patternType": "text",
"required": "false"
}, {
"Id": "e",
"description": "Department",
"type": "text",
"length": 10,
"name": "department",
"patternType": "text",
"required": "false"
}, {
"Id": "f",
"description": "City",
"type": "text",
"length": 10,
"name": "city",
"patternType": "text",
"required": "false"
}, {
"Id": "g",
"description": "State",
"type": "text",
"length": 10,
"name": "state",
"patternType": "text",
"required": "false"
}]
},
{
"Id": 2,
"description": "Contact Information",
"type": "hidden",
"required": "false",
"subquestions1": [{
"Id": "a",
"description": "ID",
"type": "text",
"name": "id2",
"patternType": "alphanumeric",
"required": "true",
"length": 200,
"answers": "mb999"
}, {
"Id": "b",
"description": "Name",
"type": "text",
"name": "user2",
"patternType": "text",
"required": "false",
"length": 100
}, {
"Id": "c",
"description": "Telephone",
"type": "text",
"length": 10,
"name": "telephone2",
"patternType": "numeric",
"required": "false"
}, {
"Id": "d",
"description": "Business Unit",
"type": "text",
"length": 10,
"name": "businessUnit2",
"required": "false",
"patternType": "text"
}, {
"Id": "e",
"description": "Department",
"type": "text",
"length": 10,
"name": "department2",
"required": "false",
"patternType": "text"
}, {
"Id": "f",
"description": "City",
"type": "text",
"length": 10,
"name": "city2",
"required": "false",
"patternType": "text",
"answers": "Atlanta"
}, {
"Id": "g",
"description": "State",
"type": "text",
"length": 10,
"name": "state2",
"required": "false",
"patternType": "text"
}]
},
{
"Id": 3,
"description": "ID information.",
"type": "hidden",
"required": "false",
"subquestions1": [{
"Id": "a",
"description": "If there is a form",
"type": "hidden",
"required": "false",
"subquestions2": [{
"id": "a.1",
"description": "Work Request",
"type": "text",
"required": "false",
"placeholder": "Please enter"
}, {
"id": "a.2",
"description": "Portfolio",
"type": "text",
"required": "false",
"placeholder": "Please enter Portfolio"
}, {
"id": "a.3",
"description": "Primary PID #",
"type": "text",
"required": "false",
"placeholder": "Please enter Primary PID"
}, {
"id": "a.4",
"description": "Please list any PID",
"type": "text",
"required": "false",
"placeholder": "Please list any PID"
}]
}]
},
{
"Id": 4,
"description": "Project Name",
"name": "projName",
"type": "textarea",
"length": 300,
"required": "true",
"patternType": "text",
"placeholder": "Please enter Project Name",
"answers": "proj"
}, {
"Id": 5,
"description": "Doc Nickname",
"name": "docNickname",
"type": "textarea",
"length": 300,
"required": "false",
"patternType": "text",
"placeholder": "Please enter Doc Nickname"
}, {
"Id": 6,
"description": "Launch Date",
"type": "text",
"required": "true",
"name": "launchDate",
"patternType": "Date",
"placeholder": "Please enter Launch Date",
"LaunchDate": "2016-01-04T18:30:00.000Z"
},
{
"Id": 7,
"description": "Non-Disclosure Agreement(NDA) Project",
"type": "radio",
"required": "true",
"subquestions1": [{
"description": "Yes",
"value": "yes",
"name": "content",
"subquestions2": [{
"Id": "a",
"description": "Does the NDA for this project limit discussion of project details?",
"subquestions3": [{
"description": "Yes",
"value": "yesInner",
"type": "radio",
"name": "content1"
}, {
"description": "No",
"value": "noInner",
"type": "radio",
"name": "content1"
}]
}, {
"Id": "b",
"description": "Are Need to Know Employees required to be covered by an NDA?",
"subquestions3": [{
"description": "Yes",
"value": "yes",
"type": "radio",
"name": "content2"
}, {
"description": "No",
"value": "no",
"type": "radio",
"name": "content2"
}]
}, {
"Id": "c",
"description": "If you are currently working with an LC, please select LC name?",
"type": "dropdown",
"repeatSelect": null,
"availableOptions": [{
"name": "Please Select"
}, {
"id": 1,
"name": "Evans,Heidi"
}, {
"id": 2,
"name": "Gulledge, Michael"
}, {
"id": 3,
"name": "Jones, Nora"
}, {
"id": 4,
"name": "Palleras, Maria"
}, {
"id": 5,
"name": "Sheehan, Sandra"
}, {
"id": 6,
"name": "Thiel, Julie"
}, {
"id": 7,
"name": "Younger, Sarah"
}]
}]
},
{
"description": "No",
"value": "no",
"name": "content"
}],
"answers": "no"
}]
是的，我可能會使用JSON API將JSON反序列化爲一種DOM表示，然後導航。你嘗試過嗎？目前不清楚你在問什麼。 –
我只是問最簡單的方法從複雜的json中獲取值。 – user3449214
添加@JonSkeet的評論，你可以使用http://www.json.org/javadoc/org/json/JSONObject.html創建一個JSON對象，然後調用object.get（key）來獲得值 – Limit