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我正在尝试使用 Converter 指定成员列表的映射,但我还想使用 PropertyMap 来映射其余字段(在下面的示例中,它只是应该映射到 'aa' 的字段'a') .

是否可以在 Converter 中或仅在 PropertyMap 中指定所有映射?如果没有,我如何在同一个模型映射器中使用两者?

谢谢。

PS 我按照这个例子http://bit.ly/10dqanw来制作我的测试课。

package org.me.modelmapper;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.modelmapper.Converter;
import org.modelmapper.ModelMapper;
import org.modelmapper.PropertyMap;
import org.modelmapper.TypeToken;
import org.modelmapper.config.Configuration;
import org.modelmapper.spi.MappingContext;
import static org.testng.Assert.*;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

public class ModelMapperTest {

    private ModelMapper modelMapper;

    public static class Foo {

        private String a;
        private List<Bar> b;

        public String getA() {
            return a;
        }

        public void setA(String a) {
            this.a = a;
        }

        public List<Bar> getB() {
            return b;
        }

        public void setB(List<Bar> b) {
            this.b = b;
        }

    }

    public static class Bar {

        private String c;

        public Bar(String c) {
            this.c = c;
        }

        public String getC() {
            return c;
        }

        public void setC(String c) {
            this.c = c;
        }

    }

    public static class FooDTO {

        private String aa;
        private List<BarDTO> bb;

        public String getAa() {
            return aa;
        }

        public void setAa(String aa) {
            this.aa = aa;
        }

        public List<BarDTO> getBb() {
            return bb;
        }

        public void setBb(List<BarDTO> bb) {
            this.bb = bb;
        }

    }

    public static class BarDTO {

        private String cc;              

        public String getCc() {
            return cc;
        }

        public void setCc(String cc) {
            this.cc = cc;
        }

    }

    public ModelMapperTest() {
    }

    @Test
    public void shouldMapFooToFooDTO() {
        Foo foo = new Foo();
        foo.setA("aaa");
        List<Bar> b = Arrays.asList(new Bar("ccc"), new Bar("ddd"));
        foo.setB(b);

        modelMapper.createTypeMap(Foo.class, FooDTO.class).setConverter(
                new Converter<Foo, FooDTO>() {

                    @Override
                    public FooDTO convert(MappingContext<Foo, FooDTO> context) {
                        List<BarDTO> barDTOs = new ArrayList<BarDTO>();

                        List<Bar> bars = context.getSource().getB();
                        TypeToken<List<BarDTO>> token = new TypeToken<List<BarDTO>>() {
                        };
                        MappingContext<List<Bar>, List<BarDTO>> c = context.create(bars, token.getType());
                        barDTOs.addAll(context.getMappingEngine().map(c));

                        FooDTO fooDTO = new FooDTO();
                        fooDTO.setBb(barDTOs);
                        return fooDTO;
                    }
                ;

    }                              
    );

        PropertyMap<Foo, FooDTO> map = new PropertyMap<Foo, FooDTO>() {

            @Override
            protected void configure() {
                map(source.getA(), destination.getAa());
            }

        };

        modelMapper.addMappings(map);

        FooDTO fooDTO = modelMapper.map(foo, FooDTO.class);

        assertEquals(fooDTO.getAa(), foo.getA());

        int i = 0;
        for(; i < fooDTO.getBb().size(); i++) {
            assertEquals(fooDTO.getBb().get(i), foo.getB().get(i));
        }
    }

    @BeforeMethod
    public void setUpMethod() throws Exception {
        modelMapper = new ModelMapper();
        modelMapper.getConfiguration()
                .setFieldMatchingEnabled(true)
                .setFieldAccessLevel(Configuration.AccessLevel.PRIVATE);               
    }

}
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1 回答 1

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对的,这是可能的。AConverter将始终优先于任何属性映射。您当然可以同时指定两者,但将使用转换器。

于 2014-09-29T20:45:41.393 回答