下面列出了怎么用org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter的API类实例代码及写法,或者点击链接到github查看源代码。
/**
* Build the RestTemplate used to make HTTP requests.
* @return RestTemplate
*/
protected RestTemplate buildRestTemplate() {
List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
messageConverters.add(new MappingJackson2HttpMessageConverter());
XmlMapper xmlMapper = new XmlMapper();
xmlMapper.configure(ToXmlGenerator.Feature.WRITE_XML_DECLARATION, true);
xmlMapper.registerModule(new JsonNullableModule());
messageConverters.add(new MappingJackson2XmlHttpMessageConverter(xmlMapper));
RestTemplate restTemplate = new RestTemplate(messageConverters);
for(HttpMessageConverter converter:restTemplate.getMessageConverters()){
if(converter instanceof AbstractJackson2HttpMessageConverter){
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter)converter).getObjectMapper();
ThreeTenModule module = new ThreeTenModule();
module.addDeserializer(Instant.class, CustomInstantDeserializer.INSTANT);
module.addDeserializer(OffsetDateTime.class, CustomInstantDeserializer.OFFSET_DATE_TIME);
module.addDeserializer(ZonedDateTime.class, CustomInstantDeserializer.ZONED_DATE_TIME);
mapper.registerModule(module);
mapper.registerModule(new JsonNullableModule());
}
}
// This allows us to read the response more than once - Necessary for debugging.
restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(restTemplate.getRequestFactory()));
return restTemplate;
}
/**
* Build the RestTemplate used to make HTTP requests.
* @return RestTemplate
*/
protected RestTemplate buildRestTemplate() {
RestTemplate restTemplate = new RestTemplate();
for(HttpMessageConverter converter:restTemplate.getMessageConverters()){
if(converter instanceof AbstractJackson2HttpMessageConverter){
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter)converter).getObjectMapper();
ThreeTenModule module = new ThreeTenModule();
module.addDeserializer(Instant.class, CustomInstantDeserializer.INSTANT);
module.addDeserializer(OffsetDateTime.class, CustomInstantDeserializer.OFFSET_DATE_TIME);
module.addDeserializer(ZonedDateTime.class, CustomInstantDeserializer.ZONED_DATE_TIME);
mapper.registerModule(module);
mapper.registerModule(new JsonNullableModule());
}
}
// This allows us to read the response more than once - Necessary for debugging.
restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(restTemplate.getRequestFactory()));
return restTemplate;
}
/**
* Build the RestTemplate used to make HTTP requests.
* @return RestTemplate
*/
protected RestTemplate buildRestTemplate() {
RestTemplate restTemplate = new RestTemplate();
for(HttpMessageConverter converter:restTemplate.getMessageConverters()){
if(converter instanceof AbstractJackson2HttpMessageConverter){
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter)converter).getObjectMapper();
ThreeTenModule module = new ThreeTenModule();
module.addDeserializer(Instant.class, CustomInstantDeserializer.INSTANT);
module.addDeserializer(OffsetDateTime.class, CustomInstantDeserializer.OFFSET_DATE_TIME);
module.addDeserializer(ZonedDateTime.class, CustomInstantDeserializer.ZONED_DATE_TIME);
mapper.registerModule(module);
mapper.registerModule(new JsonNullableModule());
}
}
// This allows us to read the response more than once - Necessary for debugging.
restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(restTemplate.getRequestFactory()));
return restTemplate;
}
@Override
public boolean supports(MethodParameter methodParameter, Type targetType,
Class<? extends HttpMessageConverter<?>> converterType) {
return (AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType) &&
methodParameter.getParameterAnnotation(JsonView.class) != null);
}
@Test
public void requestMappingHandlerAdapter() throws Exception {
ApplicationContext context = initContext(WebConfig.class);
RequestMappingHandlerAdapter adapter = context.getBean(RequestMappingHandlerAdapter.class);
List<HttpMessageConverter<?>> converters = adapter.getMessageConverters();
assertEquals(12, converters.size());
converters.stream()
.filter(converter -> converter instanceof AbstractJackson2HttpMessageConverter)
.forEach(converter -> {
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter) converter).getObjectMapper();
assertFalse(mapper.getDeserializationConfig().isEnabled(DEFAULT_VIEW_INCLUSION));
assertFalse(mapper.getSerializationConfig().isEnabled(DEFAULT_VIEW_INCLUSION));
assertFalse(mapper.getDeserializationConfig().isEnabled(FAIL_ON_UNKNOWN_PROPERTIES));
if (converter instanceof MappingJackson2XmlHttpMessageConverter) {
assertEquals(XmlMapper.class, mapper.getClass());
}
});
ConfigurableWebBindingInitializer initializer =
(ConfigurableWebBindingInitializer) adapter.getWebBindingInitializer();
assertNotNull(initializer);
ConversionService conversionService = initializer.getConversionService();
assertNotNull(conversionService);
assertTrue(conversionService instanceof FormattingConversionService);
Validator validator = initializer.getValidator();
assertNotNull(validator);
assertTrue(validator instanceof LocalValidatorFactoryBean);
DirectFieldAccessor fieldAccessor = new DirectFieldAccessor(adapter);
@SuppressWarnings("unchecked")
List<Object> bodyAdvice = (List<Object>) fieldAccessor.getPropertyValue("requestResponseBodyAdvice");
assertEquals(2, bodyAdvice.size());
assertEquals(JsonViewRequestBodyAdvice.class, bodyAdvice.get(0).getClass());
assertEquals(JsonViewResponseBodyAdvice.class, bodyAdvice.get(1).getClass());
}
@Override
public boolean supports(MethodParameter methodParameter,
Class<? extends HttpMessageConverter<?>> aClass) {
String requeireType = methodParameter.getGenericParameterType().getTypeName();
return requeireType.startsWith(ResponseEntity.class.getTypeName())
&& AbstractJackson2HttpMessageConverter.class.isAssignableFrom(aClass);
}
@Override
public boolean supports(MethodParameter methodParameter,
Class<? extends HttpMessageConverter<?>> aClass) {
String requeireType = methodParameter.getGenericParameterType().getTypeName();
return requeireType.startsWith(ResponseEntity.class.getTypeName())
&& AbstractJackson2HttpMessageConverter.class.isAssignableFrom(aClass);
}
@Override
public boolean supports(MethodParameter methodParameter, Type targetType,
Class<? extends HttpMessageConverter<?>> converterType) {
return (AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType) &&
methodParameter.getParameterAnnotation(JsonView.class) != null);
}
@Test
public void requestMappingHandlerAdapter() throws Exception {
ApplicationContext context = initContext(WebConfig.class);
RequestMappingHandlerAdapter adapter = context.getBean(RequestMappingHandlerAdapter.class);
List<HttpMessageConverter<?>> converters = adapter.getMessageConverters();
assertEquals(12, converters.size());
converters.stream()
.filter(converter -> converter instanceof AbstractJackson2HttpMessageConverter)
.forEach(converter -> {
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter) converter).getObjectMapper();
assertFalse(mapper.getDeserializationConfig().isEnabled(DEFAULT_VIEW_INCLUSION));
assertFalse(mapper.getSerializationConfig().isEnabled(DEFAULT_VIEW_INCLUSION));
assertFalse(mapper.getDeserializationConfig().isEnabled(FAIL_ON_UNKNOWN_PROPERTIES));
if (converter instanceof MappingJackson2XmlHttpMessageConverter) {
assertEquals(XmlMapper.class, mapper.getClass());
}
});
ConfigurableWebBindingInitializer initializer =
(ConfigurableWebBindingInitializer) adapter.getWebBindingInitializer();
assertNotNull(initializer);
ConversionService conversionService = initializer.getConversionService();
assertNotNull(conversionService);
assertTrue(conversionService instanceof FormattingConversionService);
Validator validator = initializer.getValidator();
assertNotNull(validator);
assertTrue(validator instanceof LocalValidatorFactoryBean);
DirectFieldAccessor fieldAccessor = new DirectFieldAccessor(adapter);
@SuppressWarnings("unchecked")
List<Object> bodyAdvice = (List<Object>) fieldAccessor.getPropertyValue("requestResponseBodyAdvice");
assertEquals(2, bodyAdvice.size());
assertEquals(JsonViewRequestBodyAdvice.class, bodyAdvice.get(0).getClass());
assertEquals(JsonViewResponseBodyAdvice.class, bodyAdvice.get(1).getClass());
}
/**
* Set the date format used to parse/format date parameters.
* @param dateFormat Date format
* @return API client
*/
public ApiClient setDateFormat(DateFormat dateFormat) {
this.dateFormat = dateFormat;
for(HttpMessageConverter converter:restTemplate.getMessageConverters()){
if(converter instanceof AbstractJackson2HttpMessageConverter){
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter)converter).getObjectMapper();
mapper.setDateFormat(dateFormat);
}
}
return this;
}
/**
* Set the date format used to parse/format date parameters.
* @param dateFormat Date format
* @return API client
*/
public ApiClient setDateFormat(DateFormat dateFormat) {
this.dateFormat = dateFormat;
for(HttpMessageConverter converter:restTemplate.getMessageConverters()){
if(converter instanceof AbstractJackson2HttpMessageConverter){
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter)converter).getObjectMapper();
mapper.setDateFormat(dateFormat);
}
}
return this;
}
/**
* 配置消息转换器
* @author Frodez
* @date 2019-05-10
*/
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
//清除掉原本的AbstractJackson2HttpMessageConverter。
converters.removeIf((iter) -> {
return iter instanceof AbstractJackson2HttpMessageConverter;
});
converters.add(0, new ResultConverter());
converters.add(1, new JsonConverter());
}
/**
* Add custom converter extemded from AbstractJackson2HttpMessageConverter
* Note: Message converter should contain FilterObjectMapper or FilterXmlMapper in objectMapper property for correct filtering
*
* @param converter instance of message converter extended from {@link AbstractJackson2HttpMessageConverter}
* @param <T> {@link AbstractJackson2HttpMessageConverter}
* @return instance of {@link FilterConfiguration}
*/
public <T extends AbstractJackson2HttpMessageConverter> FilterConfiguration withCustomConverter(T converter) {
if (converter == null)
throw new IllegalArgumentException("Converter coudn't be null");
if (!(converter.getObjectMapper() instanceof FilterObjectMapper) &&
!(converter.getObjectMapper() instanceof FilterXmlMapper))
throw new IllegalArgumentException("Converter should contain FilterObjectMapper or FilterXmlMapper in objectMapper property for correct filtering");
customConverters.add(converter);
return this;
}
/**
* 使用 JACKSON 作为JSON MessageConverter
*/
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
converters.removeIf(x -> x instanceof StringHttpMessageConverter || x instanceof AbstractJackson2HttpMessageConverter);
converters.add(new StringHttpMessageConverter(Charsets.UTF_8));
converters.add(new ByteArrayHttpMessageConverter());
converters.add(new ResourceHttpMessageConverter());
converters.add(new ResourceRegionHttpMessageConverter());
converters.add(new MappingApiJackson2HttpMessageConverter(objectMapper));
}
@Override
public boolean supports(MethodParameter methodParameter, Type targetType,
Class<? extends HttpMessageConverter<?>> converterType) {
return (AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType) &&
methodParameter.getParameterAnnotation(JsonView.class) != null);
}
@Override
public boolean supports(MethodParameter methodParameter, Type targetType,
Class<? extends HttpMessageConverter<?>> converterType) {
return (AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType) &&
methodParameter.getParameterAnnotation(JsonView.class) != null);
}
@Test
public void requestMappingHandlerAdapter() throws Exception {
ApplicationContext context = initContext(WebConfig.class);
RequestMappingHandlerAdapter adapter = context.getBean(RequestMappingHandlerAdapter.class);
List<HttpMessageConverter<?>> converters = adapter.getMessageConverters();
assertEquals(9, converters.size());
for(HttpMessageConverter<?> converter : converters) {
if (converter instanceof AbstractJackson2HttpMessageConverter) {
ObjectMapper objectMapper = ((AbstractJackson2HttpMessageConverter)converter).getObjectMapper();
assertFalse(objectMapper.getDeserializationConfig().isEnabled(MapperFeature.DEFAULT_VIEW_INCLUSION));
assertFalse(objectMapper.getSerializationConfig().isEnabled(MapperFeature.DEFAULT_VIEW_INCLUSION));
assertFalse(objectMapper.getDeserializationConfig().isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
if (converter instanceof MappingJackson2XmlHttpMessageConverter) {
assertEquals(XmlMapper.class, objectMapper.getClass());
}
}
}
ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer) adapter.getWebBindingInitializer();
assertNotNull(initializer);
ConversionService conversionService = initializer.getConversionService();
assertNotNull(conversionService);
assertTrue(conversionService instanceof FormattingConversionService);
Validator validator = initializer.getValidator();
assertNotNull(validator);
assertTrue(validator instanceof LocalValidatorFactoryBean);
DirectFieldAccessor fieldAccessor = new DirectFieldAccessor(adapter);
@SuppressWarnings("unchecked")
List<Object> bodyAdvice = (List<Object>) fieldAccessor.getPropertyValue("requestResponseBodyAdvice");
assertEquals(2, bodyAdvice.size());
assertEquals(JsonViewRequestBodyAdvice.class, bodyAdvice.get(0).getClass());
assertEquals(JsonViewResponseBodyAdvice.class, bodyAdvice.get(1).getClass());
}
/**
* Set the date format used to parse/format date parameters.
* @param dateFormat Date format
* @return API client
*/
public ApiClient setDateFormat(DateFormat dateFormat) {
this.dateFormat = dateFormat;
for(HttpMessageConverter converter:restTemplate.getMessageConverters()){
if(converter instanceof AbstractJackson2HttpMessageConverter){
ObjectMapper mapper = ((AbstractJackson2HttpMessageConverter)converter).getObjectMapper();
mapper.setDateFormat(dateFormat);
}
}
return this;
}
@Override
public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
return AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType);
}
@Override
public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
return AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType);
}
@Override
public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
return AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType);
}
@Override
public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
return AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType);
}
@Override
public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
return AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType);
}
private static ObjectMapper extractObjectMapper(VaultOperations vaultOperations) {
Optional<ObjectMapper> mapper = vaultOperations.doWithSession(operations -> {
if (operations instanceof RestTemplate) {
RestTemplate template = (RestTemplate) operations;
Optional<AbstractJackson2HttpMessageConverter> jackson2Converter = template.getMessageConverters()
.stream().filter(AbstractJackson2HttpMessageConverter.class::isInstance) //
.map(AbstractJackson2HttpMessageConverter.class::cast) //
.findFirst();
return jackson2Converter.map(AbstractJackson2HttpMessageConverter::getObjectMapper);
}
return Optional.empty();
});
return mapper.orElseGet(ObjectMapper::new);
}