jackson create object node from string
@Testpublic
void givenTheJsonNode_whenRetrievingDataFromId_thenCorrect() throws JsonParseException, IOException {
String jsonString = "{"k1":"v1","k2":"v2"}";
ObjectMapper mapper = new ObjectMapper();
JsonNode actualObj = mapper.readTree(jsonString);
JsonNode jsonNode1 = actualObj.get("k1");
assertThat(jsonNode1.textValue(), equalTo("v1"));
}convert json to object jackson
ObjectMapper objectMapper = new ObjectMapper();
String carJson =
"{ \"brand\" : \"Mercedes\", \"doors\" : 5 }";
try {
Car car = objectMapper.readValue(carJson, Car.class);
System.out.println("car brand = " + car.getBrand());
System.out.println("car doors = " + car.getDoors());
} catch (IOException e) {
e.printStackTrace();
}jackson object to json
val objectMapper = ObjectMapper()
val car = Car("yellow", "renault")
objectMapper.writeValueAsString(car)Copyright © 2021 Codeinu
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