一、导入Jar()

gradle方式

compile group: 'ma.glasnost.orika', name: 'orika-core', version: '1.5.1'

maven方式

<groupId>ma.glasnost.orika</groupId>
<artifactId>orika-core</artifactId>
<version>1.5.1</version>

二、编写容器注入的类

package com.kingboy.springboot.config;

import ma.glasnost.orika.MapperFactory;
import ma.glasnost.orika.impl.DefaultMapperFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration; /** * @Author kingboy * @Date 2017/4/12 17:44 * @Description MapperFacotoryAutoWire is used to 属性操作工具 */
@Configuration
public class MapperFacotoryAutoWire { @Bean
public MapperFactory getFactory(){
return new DefaultMapperFactory.Builder().build();
} }

三、使用

准备工作

package com.kingboy.springboot.domain;

import java.time.LocalDateTime;
import java.util.Date; /** * @Author kingboy * @Date 2017/4/13 18:32 * @Description Person is used to stupid person */
public class Person { public Person() {
} public Person(String name, Integer age, Date dateTime) {
this.name = name;
this.age = age;
this.dateTime = dateTime;
} private String name; private Integer age; private Date dateTime; public String getName() {
return name;
} public Person setName(String name) {
this.name = name;
return this;
} public Integer getAge() {
return age;
} public Person setAge(Integer age) {
this.age = age;
return this;
} public Date getDateTime() {
return dateTime;
} public Person setDateTime(Date dateTime) {
this.dateTime = dateTime;
return this;
} @Override
public String toString() {
return "Person{" +
"name='" + name + '\'' +
", age=" + age +
", dateTime=" + dateTime +
'}';
}
} package com.kingboy.springboot.domain; import java.time.LocalDateTime;
import java.util.Date; /** * @Author kingboy * @Date 2017/4/13 18:33 * @Description Student is used to student */
public class Student { private String name; private String grade; private Integer age; private Date birth; public Date getBirth() {
return birth;
} public Student setBirth(Date birth) {
this.birth = birth;
return this;
} public String getName() {
return name;
} public Student setName(String name) {
this.name = name;
return this;
} public String getGrade() {
return grade;
} public Student setGrade(String grade) {
this.grade = grade;
return this;
} public Integer getAge() {
return age;
} public Student setAge(Integer age) {
this.age = age;
return this;
} @Override
public String toString() {
return "Student{" +
"name='" + name + '\'' +
", grade='" + grade + '\'' +
", age=" + age +
", birth=" + birth +
'}';
}
}

使用方式

package com.kingboy.test;

import com.kingboy.springboot.KingBoyApplication;
import com.kingboy.springboot.domain.Person;
import com.kingboy.springboot.domain.Student;
import com.kingboy.springboot.repository.CityRepository;
import ma.glasnost.orika.MapperFactory;
import ma.glasnost.orika.metadata.ClassMapBuilder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner; import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Date;
import java.util.List; /** * @Author kingboy * @Date 2017/4/13 18:35 * @Description MapperFactoryTest is used to MapperFactory */
@SpringBootTest(classes = KingBoyApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@RunWith(SpringRunner.class)
public class MapperFactoryTest { @Autowired
private MapperFactory mapperFactory; /** * 将一个已经存在的类的属性映射到另外一个类上(可以不存在),直接返回该类,注意必须要有默认构造方法,不然报错 */
@Test
public void copyBeanToBean(){
Person person = new Person("king", 123, new Date());
mapperFactory.classMap(Person.class, Student.class)
.field("dateTime","birth")//不一样的字段映射
.byDefault()//剩余的字段映射
.register();
//如果所有字段一样,则不用写mapperFactory.classMap()方法;
Student student = mapperFactory.getMapperFacade().map(person, Student.class);
System.out.println(student);
//Student{name='king', grade='null', age=123, birth=Thu Apr 13 19:04:43 CST 2017}
} /** * 将一个List映射到另一个List */ @Test
public void copyListToList(){
List<Person> personList = getPersonList();
//手动配置不一样的属性转换
mapperFactory.classMap(Person.class, Student.class)
.field("dateTime","birth")//不一样的字段映射
.byDefault()//剩余的字段映射
.register();
//转换List
List<Student> students = mapperFactory.getMapperFacade().mapAsList(personList, Student.class);
students.forEach(student -> {
System.out.println(student);
});
/** * Student{name='king1', grade='null', age=1, birth=Thu Apr 13 19:10:39 CST 2017} *Student{name='king2', grade='null', age=2, birth=Thu Apr 13 19:10:39 CST 2017} *Student{name='king3', grade='null', age=3, birth=Thu Apr 13 19:10:39 CST 2017} *Student{name='king4', grade='null', age=4, birth=Thu Apr 13 19:10:39 CST 2017} *Student{name='king5', grade='null', age=5, birth=Thu Apr 13 19:10:39 CST 2017} */
} public List<Person> getPersonList(){
List<Person> list = new ArrayList<>(5);
Person person1 = new Person("king1", 1, new Date());
Person person2 = new Person("king2", 2, new Date());
Person person3 = new Person("king3", 3, new Date());
Person person4 = new Person("king4", 4, new Date());
Person person5 = new Person("king5", 5, new Date());
list.add(person1);
list.add(person2);
list.add(person3);
list.add(person4);
list.add(person5);
return list;
}
}

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