对象转换工具

快速使用

源类：Source 和目标类：Target属性几乎无异，但是也存在一定不同。需要转换的时候，可以使用@converter.Convertible注解实现。

import converter.Convertible;// 支持写多个注解
@Convertible(target = Target.class)
@Convertible(target = Target2.class)
public class Source {
    private Integer integer;
    // 转换为不同对象时，目标属性名称不同
    @Convertible(when = Target2.class, field = "aLong2")
    private Long aLong;
    private String string;
    private AObject aObject;
    private Boolean aBoolean;
    // 不同的类型,需要注意的是,ASource中也需要使用注解进行处理
    @Convertible(target = ATarget.class)
    private ASource aSource;
    // 不同的属性名
    @Convertible(field = "otherName")
    private Float aFloat2otherName;
    // 不同的类型 & 不同的属性名
    @Convertible(target = ATarget.class, field = "aTarget")
    private ASource aSource2target;
    private Integer aNull;
    private Integer noGetter;
    private int aInt;
    private double aDouble;
}

目标类：

public class Target2 {
    private Integer integer;
    private Long aLong2;
    private String string;
    private AObject aObject;
    private Boolean aBoolean;
    private ATarget aSource;
    private Float otherName;
    private ATarget aTarget;
    private Integer aNull;
    private Integer noGetter;
    private int aInt;
    private double aDouble;
}

属性aSource源类：

@Convertible(target = ATarget.class)
public class ASource {
    @Convertible(field = "vv")
    private Integer v;
}

属性aSource目标类：

public class ATarget {
    private Integer vv;
}

使用方式：

public class test {
    public static void main(String[] args) {
        Source source = new Source(1, 2L, "c", new AObject(100), true,
                new ASource(666), 123.456f, new ASource(9), null,
                222, 333, 444);
        Target target = new Target();
        try {
            Converter.convert(source, target);
        } catch (NoConvertibleAnnotationException | NoConvertibleTargetException e) {
            e.printStackTrace();
        }
        System.out.printf("source: %s\n", source.toString());
        System.out.printf("target: %s\n", target.toString());
    }
}

结果：

source: Source{integer=1, aLong=2, string='c', aObject=AObject{x=100}, aBoolean=true, aSource=ASource{v=666}, aFloat2otherName=123.456, aSource2target=ASource{v=9}, aNull=null, noGetter=222, aInt=333, aDouble=444.0}
target: Target2{integer=1, aLong2=2, string='c', aObject=AObject{x=100}, aBoolean=true, aSource=ATarget{vv=666}, otherName=123.456, aTarget=ATarget{vv=9}, aNull=null, noGetter=null, aInt=333, aDouble=444.0}

应用场景

• DO、DTO、VO、PO等互转的场景

Test

Package	Tests	Failures	Ignored	Duration	Success rate
converter.cases.circle	1	0	0	0.001s	100%
converter.cases.mixed	1	0	0	0.001s	100%
converter.cases.name.different	1	0	0	0s	100%
converter.cases.name.same	1	0	0	0.001s	100%
converter.cases.object2primitive	1	0	0	0.017s	100%
converter.cases.primitive2object	1	0	0	0.001s	100%
converter.cases.type.different	1	0	0	0.001s	100%
converter.cases.type.different2	1	0	0	0.001s	100%
converter.cases.type.different3	1	0	0	0.001s	100%
converter.cases.type.different4	1	0	0	0.001s	100%
converter.cases.type.same	1	0	0	0.001s	100%

TODO

• 优化写法，支持用多个注解实现多组转换规则
• 基本类型和包装类型自动转换
• 补充单元测试