Can any body tell me Java class structure equivalent to below json:
{
"status": "OK",
"data":
{
"group_id":2758,
"0":
{
"id": "2758-1",
"customid": "1",
"customid1": "",
"customid2": "",
"mobile": "9190********",
"status": "AWAITED_DLR",
},
"1":
{
"id": "2758-2",
"customid": "2",
"customid1": "",
"customid2": "",
"mobile": "9190********",
"status": "AWAITED_DLR",
}
...
}
"message": "Campaign Submitted successfully"
}
Unable to decide the structure of data object as it contains group_id and list of other object.
You can make a first class which represents your structure with :
an Int : group_id
an ArrayList : data, that contains objects of type Item
Then you create the second class Item that represents the structure of "0" and "1".
If you want to keep the label "0", "1" you can make the type of data an Hashmap<String,Item> instead of ArrayList.
You could use a map:
class Data {
int group_id;
Map<Integer, InnerObject> map = new HashMap<>();
}
Data data = new Data();
data.group_id = 2758;
data.map.put(0, innerObject0);
data.map.put(1, innerObject1);
Related
I'm trying to parse json into kotlin objects but the problem is that its key fields are numbers any idea how can parse them , I've tried serialized name but still facing problem.
The json response looks like this :
{
"Id": [{
"1": {
"name": "name1",
"class": "11a"
}
},
{
"2": {
"name": "name2",
"class": "11b"
}
}
]
}
I'm using gson and the main thing i'm trying to do is to store this number fields as some other string objects.
You can parse them into a list of maps, then "map" those to your data classes instead:
val input = """{
"Id": [{
"1": {
"name": "name1",
"class": "11a"
}
},
{
"2": {
"name": "name2",
"class": "11b"
}
}
]
}"""
val gson = Gson()
val parsed: Map<String, List<Map<String, Any>>> =
gson.fromJson(input, (object : TypeToken<Map<String, List<Map<String, Any>>>>(){}).type)
println(parsed["Id"]?.get(0)?.get("1")) // {name=name1, class=11a}
It will have some nasty generic signature, though.
If you're working with Kotlin, take a look at Klaxon, it will improve your experience.
Tools: Spring Booot v2.1.3.RELEASE, MySQL 5.7
I have table with column of type JSON named "properties".
I use jdbcTemplate.queryForList(sql) method to read from this table.
Rest service returns something like this:
[
{
"id": 1,
"name": "users",
"properties": "{\"prop1\": \"value1\"}",
"description": "smpl descr1",
"log_enabled": false
},
{
"id": 2,
"name": "members",
"properties": null,
"description": "sample description 2",
"log_enabled": true
}
]
As you can see the "properties" object is type of String.
How to force jdbcTemplete to convert data from JSON column into JSON instead of String?
Expected result:
[
{
"id": 1,
"name": "users",
"properties": {
"prop1": "value1"
},
"description": "smpl descr1",
"log_enabled": false
},
{
"id": 2,
"name": "members",
"properties": null,
"description": "sample description 2",
"log_enabled": true
}
]
I am sorry that JdbcTemplete does not have such function. You have to convert the JSON string to the java object by yourself using your favourite JSON library.
For example , in case of Jackson , you can convert any JSON string to a Map using:
ObjectMapper mapper = new ObjectMapper();
String json = "{\"prop1\": \"value1\" , \"prop2\": 123}";
Map<String,Object> result = mapper.readValue(json,new TypeReference<Map<String,Object>>() {});
result.get("prop1") // "value1"
result.get("prop2") // 123
In my render() method i need to parse nested json objects. See the portion of render and json structure below.
I access Last Name with {params.name_last}.
How will i access items under team, like team.name_first
render() {
let { params } = this.props.navigation.state
<Text>{params.name_last}</Text>
}
[
{
"id": 1,
"name_first": "Name first 1",
"name_middle": "",
"name_last": "Name last 1",
"name_suffix": "",
"phone": "888-8888",
"fax": "888-8888",
"updated_at": "2015-11-02T21:42:42.000Z",
"team": [
{
"id": 16,
"name_first": "aaa",
"name_middle": "",
"name_last": "bbb",
"name_suffix": ""
},
{
"id": 28,
"name_first": "aaa",
"name_middle": "",
"name_last": "bbb",
"name_suffix": ""
},
{
"id": 29,
"name_first": "aaa ",
"name_middle": "",
"name_last": "bbb",
"name_suffix": ""
}
]
}
]
Since team is an array, you need to either access a specific entry in the array, or iterate over the entire thing.
To reach a specific property in the nested array entry (assuming you want the object at index i):
params.team[i].name_first
To create an array of first names:
params.team.map(x => x.name_first)
I have a JSON document pulled back from a support system API. With my code, I want to pull out the pre-configured fields dynamically, presuming that the JSON may have more or fewer of the desired fields when my program calls the API.
I have some code that works, though it seems very convoluted and inefficient.
Here is a snippet of the pieces of JSON that I'm interested in:
{
"rows": [
{
"assignee_id": 1,
"created": "2017-01-25T14:13:19Z",
"custom_fields": [],
"fields": [],
"group_id": 2468,
"priority": "Low",
"requester_id": 2,
"status": "Open",
"subject": "Support request",
"ticket": {
"description": "Ticket descritpion",
"id": 1000,
"last_comment": {
"author_id": 2,
"body": "Arbitrary text",
"created_at": "2017-02-09T14:21:38Z",
"public": false
},
"priority": "low",
"status": "open",
"subject": "Support request",
"type": "incident",
"url": "Arbitrary URL"
},
"updated": "2017-02-09T14:21:38Z",
"updated_by_type": "Agent"
},
{
"assignee_id": 1,
"created": "2017-02-09T14:00:18Z",
"custom_fields": [],
"fields": [],
"group_id": 3579,
"priority": "Normal",
"requester_id": 15,
"status": "Open",
"subject": "Change request",
"ticket": {
"description": "I want to change this...",
"id": 1001,
"last_comment": {
"author_id": 20,
"body": "I want to change the CSS on my website",
"created_at": "2017-02-09T14:12:12Z",
"public": true
},
"priority": "normal",
"status": "open",
"subject": "Change request",
"type": "incident",
"url": "Arbitrary URL"
},
"updated": "2017-02-09T14:12:12Z",
"updated_by_type": "Agent"
}
]
}
I have an ArrayList called wantedFields that I build up from a config to define which information I want to pull out from the JSON:
["id","subject","requester_id","status","priority","updated","url"]
The complexity is that data is replicated in the API, and I only want to pull out data once, with a preference for the data in "rows" where applicable. My method for doing this is below. It feels like I'm repeating code but I can't really see how to make this work more efficiently. The JSON is held as "viewAsJson".
def ArrayList<Map<String,Object>> assignConfiguredFields(viewAsJson, wantedFields) {
//Pull out configured fields from JSON and store as Map to write as CSV later
ArrayList<Map<String,Object>> listOfDataToWrite = new ArrayList<Map<String,Object>>()
ArrayList<String> rowKeyList = new ArrayList<String>()
def validationRow = viewAsJson.rows.get(0)
//Compare one row object to config first
validationRow.each { k, v ->
if (wantedFields.contains(k)) {
wantedFields.remove(k)
rowKeyList.add(k)
}
}
ArrayList<String> ticketKeyList = new ArrayList<String>()
def validationTicket = viewAsJson.rows.ticket.get(0)
//Compare one ticket object to config first
validationTicket.each { k, v ->
if (wantedFields.contains(k)) {
wantedFields.remove(k)
ticketKeyList.add(k)
}
}
def rows = viewAsJson.rows
def tickets = viewAsJson.rows.ticket
//Pull matching ticket objects from JSON and store in Map
ArrayList<Map<String,Object>> tickList= new ArrayList<>()
ArrayList<Map<String,Object>> rowList= new ArrayList<>()
rows.each { row ->
Map<String,Object> rowMap = new HashMap<>()
row.each { k, v ->
if(rowKeyList.contains(k))
rowMap.put(k,v)
}
rowList.add(rowMap)
}
tickets.each { ticket ->
Map<String,Object> ticketMap = new HashMap<>()
ticket.each { k, v ->
if(ticketKeyList.contains(k))
ticketMap.put(k, v)
}
tickList.add(ticketMap)
}
for (int i = 0; i < rowList.size(); i++) {
HashMap<String,Object> dataMap = new HashMap<>()
dataMap.putAll(rowList.get(i))
dataMap.putAll(tickList.get(i))
listOfDataToWrite.add(dataMap)
}
println listOfDataToWrite
return listOfDataToWrite
}
I know there should be some validation for if the wantedFields ArrayList is still populated. I've iterated on this code so many times I just forgot to re-add that this time.
I don't know if you still need this code but why not try something like this.
Have a translation map and run each row through it.
Object tranverseMapForValue(Map source, String keysToTranverse, Integer location = 0){
List keysToTranverseList = keysToTranverse.split(/\./)
tranverseMapForValue(source, keysToTranverseList, location)
}
Object tranverseMapForValue(Map source, List keysToTranverse, Integer location = 0){
if(source.isEmpty() || keysToTranverse.isEmpty()){
return null
}
String key = keysToTranverse[location]
if(source[key] instanceof Map){
return tranverseMapForValue(source[key], keysToTranverse, location + 1)
}
else{
return source[key]
}
}
Map translation = [
"ticket.id": "id",
"ticket.subject": "subject",
"requester_id": "requester_id",
"ticket.status": "status",
"priority": "priority",
"updated": "updated",
"ticket.url": "url"
]
List rows = []
json.rows.each{ row ->
Map mapForRow = [:]
translation.each{ sourceKey, newKey ->
mapForRow << [(newKey): tranverseMapForValue(row, sourceKey)]
}
rows.add(mapForRow)
}
I have a json string. I need to get a specific object based on an id value. Suppose I entered 2, then I want {"id":"2","name":"def"} as the result. I want this to be done in java class.
[
{"id":"1",
"name":"abc"},
{"id":"2",
"name":"def"}
]
Put the Objects in the Array for better manipulation..!!!
JSONObject data = new JSONObject(YOUR_JSON);
JSONArray data_Values=data.getJSONArray(values);
int n=2;// Entered ID
for(int i=0;i<=data_Values.length();i++)
{
if(n==data_Values.getInt("id"))
{
id=data_Values.getInt("id");
name=data_Values.getString("name");
}
}
JSON Data
{
"Values": [
{
"id": "1",
"name": "ABC"
},
{
"id": "2",
"name": "EFG"
},
{
"id": "3",
"name": "HIJ"
}
]
}