Map JSON To List<Map<<String, Object>>

Pranay Kumar :

I have a JSON of the format

[{
    "id" : "a01",
    "name" : "random1",
    "val" : "random2"

},
{
    "id" : "a03",
    "name" : "random3",
    "val" : "random4"
}]

I need to map it to a List holding various Map objects. How do I achieve it?

Even if I am able to convert this JSON to a List of String of the form

{
    "id" : "a01",
    "name" : "random1",
    "val" : "random2"

}

then I have a method to convert each individual String to a Map.

Manos Nikolaidis :

You will need to pass a TypeReference to readValue with the desired result type:

ObjectMapper mapper = new ObjectMapper();
List<Map<String, Object>> data = mapper.readValue(json, new TypeReference<List<Map<String, Object>>>(){});

Guess you like

Origin http://10.200.1.11:23101/article/api/json?id=439970&siteId=1

Map JSON To List<Map<<String, Object>>

Object, List, Map turn json

Java List＜Map＜String, Object＞＞ and json mutual conversion, List＜entity＞ and json mutual conversion

List<Object> to Map<String, Map<String,List<Object>>>

Array, object, Map, List are converted into JSON data

Comparing a List<Map<String, String>> to a List<Map<String, Object>> Java

List<Map<String,String>> vs List<Object>

Unchecked cast on a Map<String, Object> (JSON converted to Map with Jackson)

JSON format conversion is not List<Map<String,String>>

List <Map <String, Object >> Chinese Sort

List <map <string, object >> sort collection

List map to list object

JSON and Map, List, String mutual conversion

//json entity transfer, list json transfer, List<Entity> to List<Object>, List<Objcet> to List<Map>

Conversion between ES6 Map and Object/JSON String

Data formats of different types of data (object, array, list container, the container map, list embedded list container, the container map embedded map, JSON)

Convert List<map<String,String>> to JSON parseable string

Java 8 streams, convert List of object to Map<String, Set<String>>

Use fastjson to convert the string to list<map<string, object>>

JAVA json string into the Map

Convert json string to map

Java Stream Grouping by List<Map<String, Object>> to Map<Integer, List<Integer>>

Java List <Map <String, Object >> commonly used traversal

Creating a map of String and Object from a List in Java 8

List is sorted according to a certain value of Map String, Object

List<Map<String,Object>>(=) is converted to JsonArray and displayed on the page

Iterate though the contents of a Map<String,List<Object>> and assign the values of the List<Object> into separate List<Double>

Convert json format map string to Map

Map<String,Object> map=new HashMap<String,Object>详解

Convert Map<String, Object> to Map<String, Set<Object>> with filter and streams