Java MapStruct集合映射
我有这样一个映射:Java MapStruct集合映射,java,mapstruct,Java,Mapstruct,我有这样一个映射: @Mappings({ @Mapping(target = "....", source = "..."), @Mapping(target = "....", source = "..."), @Mapping(target = "server", source = "server") // Added for clarity }) MyDTOClass mapMyEntity(MyEntityClass myEntityClass, Server
@Mappings({
@Mapping(target = "....", source = "..."),
@Mapping(target = "....", source = "..."),
@Mapping(target = "server", source = "server") // Added for clarity
})
MyDTOClass mapMyEntity(MyEntityClass myEntityClass, Server server);
List<MyDTOClass> mapMyEntity(List<MyEntityClass> myEntityClass, Server server);
@映射({
@映射(target=“…”,source=“…”,
@映射(target=“…”,source=“…”,
@映射(target=“server”,source=“server”)//为清晰起见添加
})
MyDTOClass mapMyEntity(MyEntityClass MyEntityClass,服务器);
List mapMyEntity(List myEntityClass,服务器);
当我从数据库中检索数据时,我会得到一个实体列表。我需要将同一个服务器对象实例映射到列表中的所有DTO实例
MapStruct需要一个列表
,这在本用例中有点多余
这是我想要的伪代码:
Server server = ....;
List<MyDTOClass> myDTOClassList = new ArrayList<MyDTOClass>();
for(MyEntityClass myEntityClass:List<MyEntityClass>)
{
MyDTOClass myDTOClass = new myDTOClass();
//My standard mappings
myDTOClass.setXXX(myEntityClass.getXXX());
...
...
//My special mapping applicable for all objects in list
myDTOClass.setServer(server);
myDTOClassList.add(myDTOClass);
}
Server=。。。。;
List myDTOClassList=新建ArrayList();
用于(MyEntityClass MyEntityClass:List)
{
MyDTOClass MyDTOClass=新的MyDTOClass();
//我的标准映射
myDTOClass.setXXX(myEntityClass.getXXX());
...
...
//我的特殊映射适用于列表中的所有对象
myDTOClass.setServer(服务器);
添加(myDTOClass);
}
如何实现这一点?您可以使用
1.2
中的新版本来实现这一点。和@AfterMapping
@Mapper
public interface MyMapper {
MyDTOClass mapMyEntity(MyEntityClass myEntityClass, @Context Server server);
List<MyDTOClass> mapMyEntity(List<MyEntityClass> myEntityClass, @Context Server server);
@AfterMapping
default void afterMapping(@MappingTarget MyDTOClass target, @Context Server server) {
target.setServer(server);
}
}
@Mapper
公共接口MyMapper{
MyDTOClass mapMyEntity(MyEntityClass MyEntityClass,@Context Server);
List mapMyEntity(List myEntityClass,@Context Server);
@后映射
默认的void afterMapping(@MappingTarget MyDTOClass target,@Context Server){
target.setServer(服务器);
}
}
您可以使用1.2
中的新版本来实现这一点。和@AfterMapping
@Mapper
public interface MyMapper {
MyDTOClass mapMyEntity(MyEntityClass myEntityClass, @Context Server server);
List<MyDTOClass> mapMyEntity(List<MyEntityClass> myEntityClass, @Context Server server);
@AfterMapping
default void afterMapping(@MappingTarget MyDTOClass target, @Context Server server) {
target.setServer(server);
}
}
@Mapper
公共接口MyMapper{
MyDTOClass mapMyEntity(MyEntityClass MyEntityClass,@Context Server);
List mapMyEntity(List myEntityClass,@Context Server);
@后映射
默认的void afterMapping(@MappingTarget MyDTOClass target,@Context Server){
target.setServer(服务器);
}
}
你的问题不是很清楚。你到底想画什么?列表从哪里来?我的基本映射是MyDTOClass mapMyEntity,我想将其扩展到集合中。但将同一服务器对象附加到列表的所有实例。我添加了伪代码。希望现在清楚了。你的问题不是很清楚。你到底想画什么?列表从哪里来?我的基本映射是MyDTOClass mapMyEntity,我想将其扩展到集合中。但将同一服务器对象附加到列表的所有实例。我添加了伪代码。希望现在清楚了。