恕我直言,有一个很好的解决方案来管理应用程序数据,而无需编写任何额外的代码.

LightAdmin是一个可插拔的Java库,用于Spring / JPA支持的应用程序,它通过干净简单的UI提供标准的CRUD功能,过滤,JSR-303验证.

它提供用于界面定制的DSL,您可以随时从应用程序中插入/拔出它.

以下是DSL配置定制的一个小例子：

@Administration( Booking.class )

public class BookingAdministration {

public static ScopesConfigurationUnit scopes( final ScopesConfigurationUnitBuilder scopeBuilder ) {

return scopeBuilder

.scope( "All",all() )

.scope( "Smoking Apartments",specification( smokingApartmentsSpec( true ) ) )

.scope( "Non Smoking Apartments",specification( smokingApartmentsSpec( false ) ) )

.scope( "Long-term bookings",filter( longTermBookingPredicate() ) ).defaultScope().build();

}

public static FiltersConfigurationUnit filters( final FiltersConfigurationUnitBuilder filterBuilder ) {

return filterBuilder

.filter( "Customer","user" )

.filter( "Booked Hotel","hotel" )

.filter( "Check-In Date","checkinDate" ).build();

}

public static FieldSetConfigurationUnit listView( final FieldSetConfigurationUnitBuilder fragmentBuilder ) {

return fragmentBuilder

.field( "user" ).caption( "Customer" )

.field( "hotel" ).caption( "Hotel" )

.field( "checkinDate" ).caption( "Check-In Date" )

.field( "smoking" ).caption( "Smoking" )

.field( "beds" ).caption( "Beds" )

.build();

}

public static DomainTypePredicate longTermBookingPredicate() {

return new DomainTypePredicate() {

@Override

public boolean apply( final Booking booking ) {

return booking.getNights() > 20;

}

};

}

public static DomainTypeSpecification smokingApartmentsSpec( final boolean isSmokingApartment ) {

return new DomainTypeSpecification() {

@Override

public Predicate toPredicate( final Root root,final CriteriaQuery> query,final CriteriaBuilder cb ) {

return cb.equal( root.get( "smoking" ),isSmokingApartment );

}

};

}

}