configure MappingJacksonHttpMessageConverter getting BeanCreationException - spring-mvc

Question

Error log:
org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'converter' defined in class path resource
[...../spring/controller/PsvJackson2HttpMessageConverter.class]:
No matching factory method found: factory bean 'psvJackson2HttpMessageConverter';
factory method 'converter()'.
Check that a method with the specified name exists and that it is non-static.
And here is the configuration class:
#Configuration
public class PsvJackson2HttpMessageConverter extends WebMvcConfigurationSupport {
#Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
converters.add(converter());
converters.add(new ByteArrayHttpMessageConverter());
converters.add(new StringHttpMessageConverter());
super.addDefaultHttpMessageConverters(converters);
}
#Bean
MappingJackson2HttpMessageConverter converter() {
MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
converter.setObjectMapper(objectMapper);
return converter;
}
}
Don't know what is wrong here.

Answer 1

Here is the thing which you can do:
Create a configuration class, which registers/maps the converters.
Create custom converter class.
For example, here is the config class:
#EnableWebMvc
#Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
#Override
public void configureMessageConverters(final List<HttpMessageConverter<?>> converters) {
converters.add(new CustomMappingJackson2HttpMessageConverter());
super.configureMessageConverters(converters);
}
}
and here is the converter class:
public class CustomMappingConverter extends AbstractJackson2HttpMessageConverter {
public CustomMappingConverter(final ObjectMapper objectMapper){
super(objectMapper, MediaType.APPLICATION_JSON, new MediaType("application", "*+json"), new MediaType("application", "jsonp"));
}
private String jsonPrefix;
public CustomMappingConverter() {
this(Jackson2ObjectMapperBuilder.json().build());
}
public void setJsonPrefix(final String jsonPrefix) {
this.jsonPrefix = jsonPrefix;
}
public void setPrefixJson(final boolean prefixJson) {
jsonPrefix = prefixJson ? ")]}', " : null;
}
#Override
protected void writePrefix(final JsonGenerator generator, final Object object) throws IOException {
if (jsonPrefix != null) {
generator.writeRaw(jsonPrefix);
}
final String jsonpFunction =
object instanceof MappingJacksonValue ? ((MappingJacksonValue) object).getJsonpFunction() : null;
if (jsonpFunction != null) {
generator.writeRaw("/**/");
generator.writeRaw(jsonpFunction + "(");
}
}
#Override
protected void writeSuffix(final JsonGenerator generator, final Object object) throws IOException {
final String jsonpFunction =
object instanceof MappingJacksonValue ? ((MappingJacksonValue) object).getJsonpFunction() : null;
if (jsonpFunction != null) {
generator.writeRaw(");");
}
}
}