import org.springframework.data.repository.support.DomainClassConverter; //导入依赖的package包/类
@Override
public void addFormatters(FormatterRegistry registry) {
	if (!(registry instanceof FormattingConversionService)) {
		log.warn("Unable to register Spring Data Jpa converter");
		return;
	}

	DomainClassConverter<FormattingConversionService> converter = new DomainClassConverter<FormattingConversionService>(
			(FormattingConversionService) registry);
	converter.setApplicationContext(this.context);
}
 

import org.springframework.data.repository.support.DomainClassConverter; //导入依赖的package包/类
@Override
public void addFormatters(FormatterRegistry registry) {
	registry.addFormatter(DistanceFormatter.INSTANCE);
	registry.addFormatter(PointFormatter.INSTANCE);

	if (!(registry instanceof FormattingConversionService)) {
		return;
	}

	FormattingConversionService conversionService = (FormattingConversionService) registry;

	DomainClassConverter<FormattingConversionService> converter = new DomainClassConverter<FormattingConversionService>(conversionService);
	converter.setApplicationContext(context);
}
 

import org.springframework.data.repository.support.DomainClassConverter; //导入依赖的package包/类
@Bean
public DomainClassConverter domainClassConverter(ConversionService conversionService) {
  return new DomainClassConverter(conversionService);
}
 

import org.springframework.data.repository.support.DomainClassConverter; //导入依赖的package包/类
@Bean
public DomainClassConverter<FormattingConversionService> domainClassConverter() {
    return new DomainClassConverter<>(mvcConversionService());
}
 

import org.springframework.data.repository.support.DomainClassConverter; //导入依赖的package包/类
@Bean
public DomainClassConverter<?> domainClassConverter() {
    return new DomainClassConverter<FormattingConversionService>(conversionService);
}
 

import org.springframework.data.repository.support.DomainClassConverter; //导入依赖的package包/类
@Bean
public DomainClassConverter<?> domainClassConverter(ConfigurableConversionService conversionService) {
    return new DomainClassConverter<>(conversionService);
}