Package org.baeldung.jackson.dtos

Examples of org.baeldung.jackson.dtos.MyDto

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    // tests - single entity to json

    @Test
    public final void whenSerializing_thenCorrect() throws JsonParseException, IOException {
        final ObjectMapper mapper = new ObjectMapper();
        final String dtoAsString = mapper.writeValueAsString(new MyDto());

        assertThat(dtoAsString, containsString("intValue"));
        assertThat(dtoAsString, containsString("stringValue"));
        assertThat(dtoAsString, containsString("booleanValue"));
    }
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    // tests - multiple entities to json

    @Test
    public final void whenDtoIsSerialized_thenCorrect() throws JsonParseException, IOException {
        final List<MyDto> listOfDtos = Lists.newArrayList(new MyDto("a", 1, true), new MyDto("bc", 3, false));

        final ObjectMapper mapper = new ObjectMapper();
        final String dtosAsString = mapper.writeValueAsString(listOfDtos);

        System.out.println(dtosAsString);
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    @Test
    public final void whenDeserializingAJsonToAClass_thenCorrect() throws JsonParseException, JsonMappingException, IOException {
        final String jsonAsString = "{\"stringValue\":\"a\",\"intValue\":1,\"booleanValue\":true}";
        final ObjectMapper mapper = new ObjectMapper();

        final MyDto readValue = mapper.readValue(jsonAsString, MyDto.class);

        assertNotNull(readValue);
        assertThat(readValue.getStringValue(), equalTo("a"));
    }
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    @Test
    public final void givenNotAllFieldsHaveValuesInJson_whenDeserializingAJsonToAClass_thenCorrect() throws JsonParseException, JsonMappingException, IOException {
        final String jsonAsString = "{\"stringValue\":\"a\",\"booleanValue\":true}";
        final ObjectMapper mapper = new ObjectMapper();

        final MyDto readValue = mapper.readValue(jsonAsString, MyDto.class);

        assertNotNull(readValue);
        assertThat(readValue.getStringValue(), equalTo("a"));
        assertThat(readValue.isBooleanValue(), equalTo(true));
    }
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    @Test(expected = UnrecognizedPropertyException.class)
    public final void givenJsonHasUnknownValues_whenDeserializingAJsonToAClass_thenExceptionIsThrown() throws JsonParseException, JsonMappingException, IOException {
        final String jsonAsString = "{\"stringValue\":\"a\",\"intValue\":1,\"booleanValue\":true,\"stringValue2\":\"something\"}";
        final ObjectMapper mapper = new ObjectMapper();

        final MyDto readValue = mapper.readValue(jsonAsString, MyDto.class);

        assertNotNull(readValue);
        assertThat(readValue.getStringValue(), equalTo("a"));
        assertThat(readValue.isBooleanValue(), equalTo(true));
        assertThat(readValue.getIntValue(), equalTo(1));
    }
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                "\"booleanValue\":true," +
                "\"stringValue2\":\"something\"}"; // @formatter:on
        final ObjectMapper mapper = new ObjectMapper();
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

        final MyDto readValue = mapper.readValue(jsonAsString, MyDto.class);

        assertNotNull(readValue);
        assertThat(readValue.getStringValue(), equalTo("a"));
        assertThat(readValue.isBooleanValue(), equalTo(true));
        assertThat(readValue.getIntValue(), equalTo(1));
    }
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Related Classes of org.baeldung.jackson.dtos.MyDto

  • org.baeldung.jackson.test.JacksonCollectionDeserializationUnitTest
  • org.baeldung.jackson.test.JacksonDeserializationUnitTest
  • org.baeldung.jackson.test.JacksonSerializationIgnoreUnitTest
  • org.baeldung.jackson.test.JacksonSerializationUnitTest
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