Orika简单使用

来源：互联网发布：硅谷ios程序员编辑：程序博客网时间：2024/06/05 08:38

使用orika进行对象间Mapping

1. 当两个类的属性名都一样

package com.orika;/** * Title:CopiedStudent.java * Description: * * @author zhuyang * @version 1.0 2017/7/18 */public class CopiedStudent {    private String name;    private Integer age;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public Integer getAge() {        return age;    }    public void setAge(Integer age) {        this.age = age;    }    @Override    public String toString() {        return "CopiedStudent{" +                "name='" + name + '\'' +                ", age=" + age +                '}';    }}

package com.orika;/** * Title:Student.java * Description: * * @author zhuyang * @version 1.0 2017/7/18 */public class Student {    private Integer age;    private String name;    public Integer getAge() {        return age;    }    public void setAge(Integer age) {        this.age = age;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

 /**     * copy object which filed name is totally same     * @param stu source student     */    public static void map1(Student stu){        //since filed name is same, so no need to register        MapperFactory factory  = new DefaultMapperFactory.Builder().build();        CopiedStudent cs = factory.getMapperFacade(Student.class,CopiedStudent.class).map(stu);        System.out.println("map1==="+cs);    }

2.两个类的字段名不一样

package com.orika;/** * Title:CopiedStudent2.java * Description: * * @author zhuyang * @version 1.0 2017/7/18 */public class CopiedStudent2 {    private String name;    private Integer copyAge;    @Override    public String toString() {        return "CopiedStudent2{" +                "name='" + name + '\'' +                ", copyAge=" + copyAge +                '}';    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public Integer getCopyAge() {        return copyAge;    }    public void setCopyAge(Integer copyAge) {        this.copyAge = copyAge;    }}

 /**     * copy object which filed name is different     * @param stu     */    public static void map2(Student stu){        MapperFactory factory  = new DefaultMapperFactory.Builder().build();        //since filed name is not same, so register is required        ClassMapBuilder builder = factory.classMap(Student.class,CopiedStudent2.class);        builder.field("age","copyAge");        builder.byDefault().register();        CopiedStudent2 cs2 = factory.getMapperFacade().map(stu,CopiedStudent2.class);        System.out.println("map2==="+cs2);    }

3. List拷贝

 public static void mapAsList(List<Student> studens){        //register copiedStudent2, since Student and CopiedStudent2 are using different filed name, so register is required.        MapperFactory factory = new DefaultMapperFactory.Builder().build();        ClassMapBuilder builder = factory.classMap(Student.class,CopiedStudent2.class);        builder.field("age","copyAge");// map field        builder.byDefault().register();        List<CopiedStudent2> copiedStudent2s = factory.getMapperFacade().mapAsList(studens,CopiedStudent2.class);        copiedStudent2s.forEach(student ->{            System.out.println("copiedStuden2 list = "+student);        });    }

阅读全文

1 0