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* Program: 4 Best ways to convert Java Map to JSONObject. * Version: 1.0.0 * */ public class CrunchifyMapToJsonObject { public static void main(String a[]) { Map<String, String> crunchifyMap = new HashMap<String, String>(); crunchifyMap.put("Google", "San Jose"); crunchifyMap...
JSON: {"key1":"value1","key2":"value2"} La biblioteca Gson es una de las más usadas para convertir un mapa de hachís en un objeto JSON. Proporciona métodos fáciles para trabajar en nuestro hashmap y JSON. La claseGsontiene un métodotoJsonTree, que toma nuestro mapa y lo convi...
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@Test public void json_to_map() throws JsonParseException, JsonMappingException, IOException { Map<String, Object> map = new HashMap<>(); ObjectMapper mapper = new ObjectMapper(); map = mapper.readValue(sampleJson, new TypeReference<HashMap<String, Object>>() { }); // OR map = mapper.re...
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@ohos.util.HashMap (非线性容器HashMap) @ohos.util.HashSet (非线性容器HashSet) @ohos.util.LightWeightMap (非线性容器LightWeightMap) @ohos.util.LightWeightSet (非线性容器LightWeightSet) @ohos.util.LinkedList (线性容器LinkedList) @ohos.util.List (线性容器List) @ohos.util.P...
'java.util.LinkedHashMap':'lmap', (TestObject.class.getName()):'testO' ] ] String json = JsonWriter.objectToJson(list, args) In this example, we create an 'args'Map, set the keyJsonWriter.SHORT_META_KEYStotrueand set theJsonWriter.TYPE_NAME_MAPto aMapthat will be used to substitut...
private static final Map<Long, UserModel> USER_MAP = new HashMap<>(); @PostConstruct public void init() { UserModel user1 = new UserModel(1L, "zhangsan", 20, new Date(), new BigDecimal("23456.11"), "13666666666"); UserModel user2 = ...