Dozer and Spring integration

问题:

EDIT : A new lib has been introduced which clarify the thing for new versions

Since version 5.5.0 Spring integration comes within additional module dozer-spring.

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Hi there I'm relatively new to Dozer and Spring and a bit confused about how to put that in place.

From the dozer website : http://dozer.sourceforge.net/documentation/usage.html

Spring integration ...

<bean id="mapper" class="org.dozer.DozerBeanMapper">   <property name="mappingFiles">     <list>       <value>dozer-global-configuration.xml</value>                   <value>dozer-bean-mappings.xml</value>       <value>more-dozer-bean-mappings.xml</value>     </list>   </property> </bean> 

Now from http://dozer.sourceforge.net/documentation/springintegration.html :

<bean class="org.dozer.spring.DozerBeanMapperFactoryBean">     <property name="mappingFiles" value="classpath*:/*mapping.xml"/>     <property name="customConverters">         <list>             <bean class="org.dozer.converters.CustomConverter"/>               </list>     </property>     <property name="eventListeners">         <list>             <bean class="org.dozer.listeners.EventListener"/>         </list>     </property>     <property name="factories">         <map>             <entry key="id" value-ref="bean-factory-ref"/>         </map>     </property> </bean> 

So I'm not really sure which way I should use it. My objectives is to have a mapper object in my business classes that will convert Business Objects to DTO (and reversely). So I think it just should be a basic Dependency Injection ?

Thanks for any help.

回答1:

Both are valid approaches, just inject this mapper as a dependency in the service class responsible for mapping, eg:

@Service public class MyMappingService{  @Autowired DozerBeanMapper dozerBeanMapper; } 

With DozerBeanMapperFactoryBean the approach along these lines should work:

<bean class="org.dozer.spring.DozerBeanMapperFactoryBean"> .... </bean> 

This returns a mapper instance, so just inject in a mapper type this way:

@Service public class MyMappingService{  @Autowired Mapper dozerBeanMapper; } 

文章来源: Dozer and Spring integration