下面列出了怎么用org.springframework.messaging.converter.DefaultContentTypeResolver的API类实例代码及写法，或者点击链接到github查看源代码。
protected MappingJackson2MessageConverter createJacksonConverter() {
DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setContentTypeResolver(resolver);
return converter;
}
@Test
public void configureMessageConvertersDefault() {
AbstractMessageBrokerConfiguration config = new BaseTestMessageBrokerConfig();
CompositeMessageConverter compositeConverter = config.brokerMessageConverter();
List<MessageConverter> converters = compositeConverter.getConverters();
assertThat(converters.size(), Matchers.is(3));
assertThat(converters.get(0), Matchers.instanceOf(StringMessageConverter.class));
assertThat(converters.get(1), Matchers.instanceOf(ByteArrayMessageConverter.class));
assertThat(converters.get(2), Matchers.instanceOf(MappingJackson2MessageConverter.class));
ContentTypeResolver resolver = ((MappingJackson2MessageConverter) converters.get(2)).getContentTypeResolver();
assertEquals(MimeTypeUtils.APPLICATION_JSON, ((DefaultContentTypeResolver) resolver).getDefaultMimeType());
}
private RuntimeBeanReference registerMessageConverter(
Element element, ParserContext context, @Nullable Object source) {
Element convertersElement = DomUtils.getChildElementByTagName(element, "message-converters");
ManagedList<Object> converters = new ManagedList<>();
if (convertersElement != null) {
converters.setSource(source);
for (Element beanElement : DomUtils.getChildElementsByTagName(convertersElement, "bean", "ref")) {
Object object = context.getDelegate().parsePropertySubElement(beanElement, null);
converters.add(object);
}
}
if (convertersElement == null || Boolean.valueOf(convertersElement.getAttribute("register-defaults"))) {
converters.setSource(source);
converters.add(new RootBeanDefinition(StringMessageConverter.class));
converters.add(new RootBeanDefinition(ByteArrayMessageConverter.class));
if (jackson2Present) {
RootBeanDefinition jacksonConverterDef = new RootBeanDefinition(MappingJackson2MessageConverter.class);
RootBeanDefinition resolverDef = new RootBeanDefinition(DefaultContentTypeResolver.class);
resolverDef.getPropertyValues().add("defaultMimeType", MimeTypeUtils.APPLICATION_JSON);
jacksonConverterDef.getPropertyValues().add("contentTypeResolver", resolverDef);
// Use Jackson factory in order to have JSR-310 and Joda-Time modules registered automatically
GenericBeanDefinition jacksonFactoryDef = new GenericBeanDefinition();
jacksonFactoryDef.setBeanClass(Jackson2ObjectMapperFactoryBean.class);
jacksonFactoryDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
jacksonFactoryDef.setSource(source);
jacksonConverterDef.getPropertyValues().add("objectMapper", jacksonFactoryDef);
converters.add(jacksonConverterDef);
}
}
ConstructorArgumentValues cargs = new ConstructorArgumentValues();
cargs.addIndexedArgumentValue(0, converters);
RootBeanDefinition messageConverterDef = new RootBeanDefinition(CompositeMessageConverter.class, cargs, null);
String name = MESSAGE_CONVERTER_BEAN_NAME;
registerBeanDefByName(name, messageConverterDef, context, source);
return new RuntimeBeanReference(name);
}
protected MappingJackson2MessageConverter createJacksonConverter() {
DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setContentTypeResolver(resolver);
return converter;
}
@Test
public void configureMessageConvertersDefault() {
AbstractMessageBrokerConfiguration config = new BaseTestMessageBrokerConfig();
CompositeMessageConverter compositeConverter = config.brokerMessageConverter();
List<MessageConverter> converters = compositeConverter.getConverters();
assertThat(converters.size(), Matchers.is(3));
assertThat(converters.get(0), Matchers.instanceOf(StringMessageConverter.class));
assertThat(converters.get(1), Matchers.instanceOf(ByteArrayMessageConverter.class));
assertThat(converters.get(2), Matchers.instanceOf(MappingJackson2MessageConverter.class));
ContentTypeResolver resolver = ((MappingJackson2MessageConverter) converters.get(2)).getContentTypeResolver();
assertEquals(MimeTypeUtils.APPLICATION_JSON, ((DefaultContentTypeResolver) resolver).getDefaultMimeType());
}
private RuntimeBeanReference registerMessageConverter(
Element element, ParserContext context, @Nullable Object source) {
Element convertersElement = DomUtils.getChildElementByTagName(element, "message-converters");
ManagedList<Object> converters = new ManagedList<>();
if (convertersElement != null) {
converters.setSource(source);
for (Element beanElement : DomUtils.getChildElementsByTagName(convertersElement, "bean", "ref")) {
Object object = context.getDelegate().parsePropertySubElement(beanElement, null);
converters.add(object);
}
}
if (convertersElement == null || Boolean.valueOf(convertersElement.getAttribute("register-defaults"))) {
converters.setSource(source);
converters.add(new RootBeanDefinition(StringMessageConverter.class));
converters.add(new RootBeanDefinition(ByteArrayMessageConverter.class));
if (jackson2Present) {
RootBeanDefinition jacksonConverterDef = new RootBeanDefinition(MappingJackson2MessageConverter.class);
RootBeanDefinition resolverDef = new RootBeanDefinition(DefaultContentTypeResolver.class);
resolverDef.getPropertyValues().add("defaultMimeType", MimeTypeUtils.APPLICATION_JSON);
jacksonConverterDef.getPropertyValues().add("contentTypeResolver", resolverDef);
// Use Jackson factory in order to have JSR-310 and Joda-Time modules registered automatically
GenericBeanDefinition jacksonFactoryDef = new GenericBeanDefinition();
jacksonFactoryDef.setBeanClass(Jackson2ObjectMapperFactoryBean.class);
jacksonFactoryDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
jacksonFactoryDef.setSource(source);
jacksonConverterDef.getPropertyValues().add("objectMapper", jacksonFactoryDef);
converters.add(jacksonConverterDef);
}
}
ConstructorArgumentValues cargs = new ConstructorArgumentValues();
cargs.addIndexedArgumentValue(0, converters);
RootBeanDefinition messageConverterDef = new RootBeanDefinition(CompositeMessageConverter.class, cargs, null);
String name = MESSAGE_CONVERTER_BEAN_NAME;
registerBeanDefByName(name, messageConverterDef, context, source);
return new RuntimeBeanReference(name);
}
protected MappingJackson2MessageConverter createJacksonConverter() {
DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setContentTypeResolver(resolver);
return converter;
}
@Test
public void configureMessageConvertersDefault() {
AbstractMessageBrokerConfiguration config = new BaseTestMessageBrokerConfig();
CompositeMessageConverter compositeConverter = config.brokerMessageConverter();
List<MessageConverter> converters = compositeConverter.getConverters();
assertThat(converters.size(), Matchers.is(3));
assertThat(converters.get(0), Matchers.instanceOf(StringMessageConverter.class));
assertThat(converters.get(1), Matchers.instanceOf(ByteArrayMessageConverter.class));
assertThat(converters.get(2), Matchers.instanceOf(MappingJackson2MessageConverter.class));
ContentTypeResolver resolver = ((MappingJackson2MessageConverter) converters.get(2)).getContentTypeResolver();
assertEquals(MimeTypeUtils.APPLICATION_JSON, ((DefaultContentTypeResolver) resolver).getDefaultMimeType());
}
private RuntimeBeanReference registerMessageConverter(Element element, ParserContext context, Object source) {
Element convertersElement = DomUtils.getChildElementByTagName(element, "message-converters");
ManagedList<? super Object> converters = new ManagedList<Object>();
if (convertersElement != null) {
converters.setSource(source);
for (Element beanElement : DomUtils.getChildElementsByTagName(convertersElement, "bean", "ref")) {
Object object = context.getDelegate().parsePropertySubElement(beanElement, null);
converters.add(object);
}
}
if (convertersElement == null || Boolean.valueOf(convertersElement.getAttribute("register-defaults"))) {
converters.setSource(source);
converters.add(new RootBeanDefinition(StringMessageConverter.class));
converters.add(new RootBeanDefinition(ByteArrayMessageConverter.class));
if (jackson2Present) {
RootBeanDefinition jacksonConverterDef = new RootBeanDefinition(MappingJackson2MessageConverter.class);
RootBeanDefinition resolverDef = new RootBeanDefinition(DefaultContentTypeResolver.class);
resolverDef.getPropertyValues().add("defaultMimeType", MimeTypeUtils.APPLICATION_JSON);
jacksonConverterDef.getPropertyValues().add("contentTypeResolver", resolverDef);
// Use Jackson factory in order to have JSR-310 and Joda-Time modules registered automatically
GenericBeanDefinition jacksonFactoryDef = new GenericBeanDefinition();
jacksonFactoryDef.setBeanClass(Jackson2ObjectMapperFactoryBean.class);
jacksonFactoryDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
jacksonFactoryDef.setSource(source);
jacksonConverterDef.getPropertyValues().add("objectMapper", jacksonFactoryDef);
converters.add(jacksonConverterDef);
}
}
ConstructorArgumentValues cavs = new ConstructorArgumentValues();
cavs.addIndexedArgumentValue(0, converters);
RootBeanDefinition messageConverterDef = new RootBeanDefinition(CompositeMessageConverter.class, cavs, null);
return new RuntimeBeanReference(registerBeanDef(messageConverterDef, context, source));
}
@Override
public boolean configureMessageConverters(List<MessageConverter> messageConverters) {
// Workaround for issue 2445: https://github.com/spring-projects/spring-boot/issues/2445
DefaultContentTypeResolver resolver = new DefaultContentTypeResolver();
resolver.setDefaultMimeType(MimeTypeUtils.APPLICATION_JSON);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setObjectMapper(objectMapper);
converter.setContentTypeResolver(resolver);
messageConverters.add(converter);
return false;
}
/**
* @param customConverters a list of {@link AbstractMessageConverter}
* @param objectMapper object mapper for for serialization / deserialization
*/
public CompositeMessageConverterFactory(
List<? extends MessageConverter> customConverters,
ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
if (!CollectionUtils.isEmpty(customConverters)) {
this.converters = new ArrayList<>(customConverters);
}
else {
this.converters = new ArrayList<>();
}
initDefaultConverters();
Field headersField = ReflectionUtils.findField(MessageHeaders.class, "headers");
headersField.setAccessible(true);
DefaultContentTypeResolver resolver = new DefaultContentTypeResolver() {
@Override
@SuppressWarnings("unchecked")
public MimeType resolve(@Nullable MessageHeaders headers) {
Object contentType = headers.get(MessageHeaders.CONTENT_TYPE);
if (contentType instanceof byte[]) {
contentType = new String((byte[]) contentType, StandardCharsets.UTF_8);
contentType = ((String) contentType).replace("\"", "");
Map<String, Object> headersMap = (Map<String, Object>) ReflectionUtils.getField(headersField, headers);
headersMap.put(MessageHeaders.CONTENT_TYPE, contentType);
}
return super.resolve(headers);
}
};
resolver.setDefaultMimeType(BindingProperties.DEFAULT_CONTENT_TYPE);
this.converters.stream().filter(mc -> mc instanceof AbstractMessageConverter)
.forEach(mc -> ((AbstractMessageConverter) mc)
.setContentTypeResolver(resolver));
}