默认情况下，未注释的日期和时间字段将从
strings 的 Strings。如果您愿意，可以通过以下方式更改此设置
定义您自己的全局格式。@DateTimeFormatDateFormat.SHORT
为此，请确保 Spring 不注册默认格式化程序。相反，请注册 格式化程序：
-
org.springframework.format.datetime.standard.DateTimeFormatterRegistrar -
org.springframework.format.datetime.DateFormatterRegistrar
例如，以下 Java 配置注册了全局格式：yyyyMMdd
-
Java
-
Kotlin
@Configuration
public class AppConfig {
@Bean
public FormattingConversionService conversionService() {
// Use the DefaultFormattingConversionService but do not register defaults
DefaultFormattingConversionService conversionService =
new DefaultFormattingConversionService(false);
// Ensure @NumberFormat is still supported
conversionService.addFormatterForFieldAnnotation(
new NumberFormatAnnotationFormatterFactory());
// Register JSR-310 date conversion with a specific global format
DateTimeFormatterRegistrar dateTimeRegistrar = new DateTimeFormatterRegistrar();
dateTimeRegistrar.setDateFormatter(DateTimeFormatter.ofPattern("yyyyMMdd"));
dateTimeRegistrar.registerFormatters(conversionService);
// Register date conversion with a specific global format
DateFormatterRegistrar dateRegistrar = new DateFormatterRegistrar();
dateRegistrar.setFormatter(new DateFormatter("yyyyMMdd"));
dateRegistrar.registerFormatters(conversionService);
return conversionService;
}
}@Configuration
class AppConfig {
@Bean
fun conversionService(): FormattingConversionService {
// Use the DefaultFormattingConversionService but do not register defaults
return DefaultFormattingConversionService(false).apply {
// Ensure @NumberFormat is still supported
addFormatterForFieldAnnotation(NumberFormatAnnotationFormatterFactory())
// Register JSR-310 date conversion with a specific global format
val dateTimeRegistrar = DateTimeFormatterRegistrar()
dateTimeRegistrar.setDateFormatter(DateTimeFormatter.ofPattern("yyyyMMdd"))
dateTimeRegistrar.registerFormatters(this)
// Register date conversion with a specific global format
val dateRegistrar = DateFormatterRegistrar()
dateRegistrar.setFormatter(DateFormatter("yyyyMMdd"))
dateRegistrar.registerFormatters(this)
}
}
}如果您更喜欢基于 XML 的配置，可以使用 .以下示例显示了如何执行此操作：FormattingConversionServiceFactoryBean
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
<property name="registerDefaultFormatters" value="false" />
<property name="formatters">
<set>
<bean class="org.springframework.format.number.NumberFormatAnnotationFormatterFactory" />
</set>
</property>
<property name="formatterRegistrars">
<set>
<bean class="org.springframework.format.datetime.standard.DateTimeFormatterRegistrar">
<property name="dateFormatter">
<bean class="org.springframework.format.datetime.standard.DateTimeFormatterFactoryBean">
<property name="pattern" value="yyyyMMdd"/>
</bean>
</property>
</bean>
</set>
</property>
</bean>
</beans>请注意，在 Web 中配置日期和时间格式时，还需要注意一些额外的注意事项 应用。请参阅 WebMVC 转换和格式化 或 WebFlux 转换和格式化。