com.fasterxml.jackson.databind.ObjectMapper#disable ( )源码实例Demo

public static byte[] convertObjectToJsonBytes( Object object ) throws IOException
{
    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.setSerializationInclusion( JsonInclude.Include.NON_NULL );
    objectMapper.configure( SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false );
    objectMapper.configure( SerializationFeature.FAIL_ON_EMPTY_BEANS, false );
    objectMapper.configure( SerializationFeature.WRAP_EXCEPTIONS, true );
    objectMapper.setSerializationInclusion( JsonInclude.Include.NON_NULL );

    objectMapper.configure( DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false );
    objectMapper.configure( DeserializationFeature.FAIL_ON_NULL_FOR_PRIMITIVES, true );
    objectMapper.configure( DeserializationFeature.WRAP_EXCEPTIONS, true );

    objectMapper.disable( MapperFeature.AUTO_DETECT_FIELDS );
    objectMapper.disable( MapperFeature.AUTO_DETECT_CREATORS );
    objectMapper.disable( MapperFeature.AUTO_DETECT_GETTERS );
    objectMapper.disable( MapperFeature.AUTO_DETECT_SETTERS );
    objectMapper.disable( MapperFeature.AUTO_DETECT_IS_GETTERS );

    return objectMapper.writeValueAsBytes( object );
}
 

private static ObjectMapper createObjectMapper() {

        ObjectMapper mapper = new ObjectMapper();

        mapper.registerModule(new Jdk8Module());
        mapper.registerModule(new JavaTimeModule());
        mapper.registerModule(new ParameterNamesModule());

        mapper.enable(SerializationFeature.INDENT_OUTPUT);
        mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);

        mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
        mapper.enable(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);

        return mapper;
    }
 

@BeforeClass
public static void initClassStubData() {
  mapper = new ObjectMapper();
  mapper.disable(MapperFeature.AUTO_DETECT_GETTERS);
  mapper.disable(MapperFeature.AUTO_DETECT_IS_GETTERS);
  mapper.disable(MapperFeature.AUTO_DETECT_FIELDS);
  mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
  treeMapSerializer = new TreeMapSerializer();

}
 

public static ObjectMapper createJSONMapper() {
   ObjectMapper mapper = new ObjectMapper();

   // SerializationFeature for changing how JSON is written
   mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
   mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);

   // DeserializationFeature for changing how JSON is read as POJOs:
   mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
   mapper.enable(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);
   return mapper;
}
 

@Test
public void whenSerializingJodaTime_thenCorrect() throws JsonProcessingException {
    final DateTime date = new DateTime(2014, 12, 20, 2, 30, DateTimeZone.forID("Europe/London"));

    final ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new JodaModule());
    mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);

    final String result = mapper.writeValueAsString(date);
    assertThat(result, containsString("2014-12-20T02:30:00.000Z"));
}
 

@Bean
public static SdkFactory httpClientSdkFactory(
    List<OkHttp3ClientFactory> okHttpClientFactories,
    Environment environment,
    Provider<Registry> registry) {

  OkHttpClientConfigurationProperties okHttpClientProperties =
      Binder.get(environment)
          .bind("ok-http-client", Bindable.of(OkHttpClientConfigurationProperties.class))
          .orElse(new OkHttpClientConfigurationProperties());

  OkHttpMetricsInterceptorProperties okHttpMetricsInterceptorProperties =
      Binder.get(environment)
          .bind(
              "ok-http-client.interceptor", Bindable.of(OkHttpMetricsInterceptorProperties.class))
          .orElse(new OkHttpMetricsInterceptorProperties());

  List<OkHttp3ClientFactory> factories = new ArrayList<>(okHttpClientFactories);
  OkHttp3MetricsInterceptor okHttp3MetricsInterceptor =
      new OkHttp3MetricsInterceptor(registry, okHttpMetricsInterceptorProperties.skipHeaderCheck);
  factories.add(new DefaultOkHttp3ClientFactory(okHttp3MetricsInterceptor));

  OkHttp3ClientConfiguration config =
      new OkHttp3ClientConfiguration(okHttpClientProperties, okHttp3MetricsInterceptor);

  // TODO(rz): It'd be nice to make this customizable, but I'm not sure how to do that without
  //  bringing Jackson into the Plugin SDK (quite undesirable).
  ObjectMapper objectMapper = new ObjectMapper();
  objectMapper.registerModule(new Jdk8Module());
  objectMapper.registerModule(new JavaTimeModule());
  objectMapper.registerModule(new KotlinModule());
  objectMapper.disable(READ_DATE_TIMESTAMPS_AS_NANOSECONDS);
  objectMapper.disable(WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS);
  objectMapper.disable(FAIL_ON_UNKNOWN_PROPERTIES);
  objectMapper.disable(FAIL_ON_EMPTY_BEANS);
  objectMapper.setSerializationInclusion(NON_NULL);

  return new HttpClientSdkFactory(
      new CompositeOkHttpClientFactory(factories), environment, objectMapper, config);
}
 

public JsonMapper(Include include) {
	mapper = new ObjectMapper();
	// 设置输出时包含属性的风格
	if (include != null) {
		mapper.setSerializationInclusion(include);
	}
	// 设置输入时忽略在JSON字符串中存在但Java对象实际没有的属性
	mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
}
 

@Test
public void testIgnore(){
    Map<String,String> map = new HashMap<>();
    map.put("ST","31");
    map.put("Flag","N");
    map.put("CP","&&k=v&&");
    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.disable(FAIL_ON_UNKNOWN_PROPERTIES);
    objectMapper.addMixIn(Data.class,DataDeserializationMixin.class);

    Data data = objectMapper.convertValue(map, Data.class);
    assertNull(data.getDataFlag());
}
 

public static DataRequest fromJson(String json) {
    try {
        ObjectMapper mapper = new ObjectMapper();
        mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
        DataRequest dataRequest = mapper.readValue(json, DataRequest.class);
        return dataRequest;
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}
 

public ObjectMapper build() {
    ObjectMapper mapper = new ObjectMapper();
    mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
    mapper.configure(DeserializationFeature.READ_DATE_TIMESTAMPS_AS_NANOSECONDS, false);
    mapper.configure(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS, false);
    mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
    mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
    registerQuantitySerializer(mapper);
    mapper.registerModules(new MoneyModule(), new JavaTimeModule(), new Jackson2HalModule());

    return mapper;
}
 

public static Ranker get(Reader reader, Config override, int featLength) {
  String algorithm;
  ObjectMapper mapper = new ObjectMapper();
  mapper.disable(JsonParser.Feature.AUTO_CLOSE_SOURCE);
  try {
    Map model = mapper.readValue(reader, Map.class);
    algorithm = ((String)model.get("algorithm")).toLowerCase();
    reader.reset();
  } catch (IOException ioe) {
    throw new RuntimeException(ioe);
  }
  return get(algorithm, reader, override, featLength);
}
 

@Override
    public ObjectMapper getObjectMapper() {
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
//            objectMapper.disable(SerializationFeature.FLUSH_AFTER_WRITE_VALUE);
        objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
        objectMapper.setTimeZone(TimeZone.getDefault());
        return objectMapper;
    }
 

private static synchronized void buildDefaultObjectMapper() {
        objectMapper = new ObjectMapper();
        objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
//            objectMapper.disable(SerializationFeature.FLUSH_AFTER_WRITE_VALUE);
        objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
        objectMapper.setTimeZone(TimeZone.getDefault());
    }
 

public TimedJsonStreamParser(List<TblColRef> allColumns, Map<String, String> properties) {
    this.allColumns = allColumns;
    if (properties == null) {
        properties = StreamingParser.defaultProperties;
    }

    tsColName = properties.get(PROPERTY_TS_COLUMN_NAME);
    tsParser = properties.get(PROPERTY_TS_PARSER);
    separator = properties.get(PROPERTY_EMBEDDED_SEPARATOR);
    strictCheck = Boolean.parseBoolean(properties.get(PROPERTY_STRICT_CHECK));

    if (!StringUtils.isEmpty(tsParser)) {
        try {
            Class clazz = Class.forName(tsParser);
            Constructor constructor = clazz.getConstructor(Map.class);
            streamTimeParser = (AbstractTimeParser) constructor.newInstance(properties);
        } catch (Exception e) {
            throw new IllegalStateException("Invalid StreamingConfig, tsParser " + tsParser + ", parserProperties " + properties + ".", e);
        }
    } else {
        throw new IllegalStateException("Invalid StreamingConfig, tsParser " + tsParser + ", parserProperties " + properties + ".");
    }
    mapper = new ObjectMapper();
    mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
    mapper.disable(DeserializationFeature.FAIL_ON_INVALID_SUBTYPE);
    mapper.enable(DeserializationFeature.USE_JAVA_ARRAY_FOR_JSON_ARRAY);

    for (TblColRef col : allColumns) {
        colLowerCaseMap.put(col.getName(), col.getName().toLowerCase(Locale.ROOT));
    }
}
 

private Graph readGraphFromFile(String filePath) throws URISyntaxException, IOException {
	ObjectMapper mapper = new ObjectMapper();
	mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
	return mapper.readValue(
			OLSHttpClientTest.getFile(filePath),
			Graph.class);
}
 

public ObjectMapper newSerializerMapper() {
    final ObjectMapper mapper = new ObjectMapper();

    // JDK8+ Time and Date handling / JSR-310
    mapper.registerModule(new JavaTimeModule());
    mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    mapper.disable(SerializationFeature.WRITE_DATES_WITH_ZONE_ID);
    mapper.disable(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS);

    return mapper;
}
 

@Test
public void privateTempTestToJSON() {
  try {

    ObjectMapper mapper = new ObjectMapper();
    mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
    mapper.enable(DeserializationFeature.USE_JAVA_ARRAY_FOR_JSON_ARRAY);

    File tempOut = new File("temp.json");

    // Test Integer:
    SourceDataTagValue valueToWrite = sdt3.update(new ValueUpdate(1, "test", System.currentTimeMillis()));

    mapper.writeValue(tempOut, valueToWrite);

    SourceDataTagValue readValue = mapper.readValue(tempOut, SourceDataTagValue.class);
    assertTrue(readValue.equals(valueToWrite));

    // Test IntegerArray
    Integer[] integerArray = { 7, 8, 9 };
    valueToWrite = sdt3.update(new ValueUpdate(integerArray, "test", System.currentTimeMillis()));

    mapper.writeValue(tempOut, valueToWrite);

    readValue = mapper.readValue(tempOut, SourceDataTagValue.class);

    // Object Test
    SourceDataTagValue objectValue = sdt1.update(new ValueUpdate("Tach", "test2", System.currentTimeMillis()));
    valueToWrite = sdt3.update(new ValueUpdate(objectValue, "test", System.currentTimeMillis()));

    mapper.writeValue(tempOut, valueToWrite);

    readValue = mapper.readValue(tempOut, SourceDataTagValue.class);
    String blub = mapper.writeValueAsString(123456L);
  }
  catch (IOException e) {
    e.printStackTrace();
  }

}
 

public static DataRequestResponse fromJson(String json) {
    try {
        ObjectMapper mapper = new ObjectMapper();
        mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
        DataRequestResponse dataRequestResponse = mapper.readValue(json, DataRequestResponse.class);
        return dataRequestResponse;
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return null;
}
 

@Override
public ObjectMapper onCreated(BeanCreatedEvent<ObjectMapper> event) {
    final ObjectMapper mapper = event.getBean();
    mapper.registerModule(new JavaTimeModule());
    mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    return mapper;
}
 

private static ObjectMapper objectMapper() {
    ObjectMapper mapper = new ObjectMapper();
    mapper.registerModule(new JavaTimeModule());
    mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    return mapper;
}