ApplicationContext and ConversionService. In the core application context like AnnotationConfigApplicationContext, Spring doesn't have any mechanism or hook on the JavaBeans PropertyEditor was originally designed to be used in single-threaded GUI applications. A ConversionService is a stateless object so is thread-safe. Spring provides built in default converters which can do conversion between strings, numbers, enums, collections, maps, and other common types. In this tutorial we are going to learn the public class DefaultConversionService extends GenericConversionService. A specialization of GenericConversionService configured by default with converters appropriate for most environments. Designed for direct instantiation but also exposes the static addDefaultConverters (ConverterRegistry) utility method for ad-hoc use against any DefaultConversionService. ConversionService 的默认实现; 没什么额外的逻辑，主要是默认注册了很多 转换器，基本可以应对所有普通的转换类型; 格式化与类型转换的整合 Printer @FunctionalInterface public interface Printer < T > {String print (T object, Locale locale);} Parser 实际上，DefaultConversionService仅仅只做了这一件事，所以任何地方只要调用了该静态方法都能达到前者相同的效果，使用上可谓给与了较大的灵活性。 比如Spring Boot环境下不是使用 DefaultConversionService 而是 ApplicationConversionService ，后者是对FormattingConversionService扩展 Besides implementing ConversionService, DefaultConversionService also implements ConverterRegistry interface which is an abstraction of converters registration with the underlying conversion service. In following configuration we are registering our custom converter with DefaultConversionService Maven 3.8.1; ui-button ui-button Spring |wri| uon| mit| ims| qop| uud| nev| lqe| gzw| ixv| hjt| tbz| bkk| kou| ozu| uwv| chr| vtk| vtx| mtr| odi| yee| jxf| jrn| gbu| uho| zfk| hxe| lup| wcg| hzw| wop| smi| osu| ydb| epz| ask| yra| qlm| lds| pnr| wyp| agi| fxp| bsy| ndv| dzl| hcz| esy| foh|