[Java] MapStruct实体间转换的简单用法

<properties>
<org.mapstruct.version>1.2.0.cr1</org.mapstruct.version>
</properties>

<dependencies>
  <dependency>
  <groupid>org.mapstruct</groupid>
  <artifactid>mapstruct-jdk8</artifactid>
  <version>${org.mapstruct.version}</version>
  </dependency>
</dependencies>

<build>
  <plugins>
  <plugin>
<groupid>org.apache.maven.plugins</groupid>
    <artifactid>maven-compiler-plugin</artifactid>
    <version>3.5.1</version>
    <configuration>
    <source>1.8</source>
    <target>1.8</target>
    <annotationprocessorpaths>
      <path>
  <groupid>org.mapstruct</groupid>
      <artifactid>mapstruct-processor</artifactid>
    <version>${org.mapstruct.version}</version>
      </path>
    </annotationprocessorpaths>
    </configuration>
  </plugin>
  </plugins>
</build>

public class user {
  private int id;
  private string name;
  private boolean married;
// setters, getters, tostring
}

public class employee {
  private int id;
  private string name;
  private string position;
  private boolean married;
// setters, getters, tostring
}

@mapper
public interface usermapper {
  usermapper instance = mappers.getmapper(usermapper.class);
  employee usertoemployee(user user);
  user employeetouser(employee employee);
}

import com.training.mapstrut.model.employee;
import com.training.mapstrut.model.user;
import javax.annotation.generated;
@generated(
  value = "org.mapstruct.ap.mappingprocessor",
  date = "2017-08-26t17:08:23+0800",
  comments = "version: 1.2.0.cr1, compiler: javac, environment: java 1.8.0_92 (oracle corporation)"
)
public class usermapperimpl implements usermapper {
  @override
  public employee usertoemployee(user user) {
  if ( user == null ) {
    return null;
  }
  employee employee = new employee();
  employee.setid( user.getid() );
  employee.setname( user.getname() );
  employee.setmarried( user.ismarried() );
  return employee;
  }
  @override
  public user employeetouser(employee employee) {
  if ( employee == null ) {
    return null;
  }
  user user = new user();
  user.setid( employee.getid() );
  user.setname( employee.getname() );
  user.setmarried( employee.ismarried() );
  return user;
  }
}

public class apptest{
  @test
  public void apptest(){
  user user = new user();
  user.setid(125);
  user.setname("chao");
  user.setmarried(false);
  employee e = usermapper.instance.usertoemployee(user);
  system.out.println(e);
  assert.assertfalse(e.ismarried());
  }
}

employee [id=125, name=chao, position=null, married=false]