public static void copyProperties(Object source, Object target) throws BeansException

import org.apache.commons.beanutils.BeanUtils;

public class BeanUtilsExample {
    public static void main(String[] args) {
        SourceBean source = new SourceBean("John", 30);
        TargetBean target = new TargetBean();
        
        try {
            BeanUtils.copyProperties(target, source);
            System.out.println("Target Name: " + target.getName());
            System.out.println("Target Age: " + target.getAge());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

class SourceBean {
    private String name;
    private int age;

    // Constructors, getters and setters
    public SourceBean(String name, int age) {
        this.name = name;
        this.age = age;
    }
    
    public String getName() {
        return name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public int getAge() {
        return age;
    }
    
    public void setAge(int age) {
        this.age = age;
    }
}

class TargetBean {
    private String name;
    private int age;

    // Getters and setters
    public String getName() {
        return name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public int getAge() {
        return age;
    }
    
    public void setAge(int age) {
        this.age = age;
    }
}

import java.beans.PropertyEditorSupport;

public class CustomDateEditor extends PropertyEditorSupport {
    @Override
    public void setAsText(String text) throws IllegalArgumentException {
        try {
            // 自定義日期轉換邏輯
            setValue(new SimpleDateFormat("yyyy-MM-dd").parse(text));
        } catch (ParseException e) {
            throw new IllegalArgumentException("Invalid date format");
        }
    }
}

import org.apache.commons.beanutils.ConvertUtils;

ConvertUtils.register(new CustomDateEditor(), Date.class);

public class CustomBeanUtils {
    public static void copyPropertiesIgnoreNull(Object target, Object source) throws BeansException {
        BeanUtils.copyProperties(source, target);
        // 可以在這里添加忽略邏輯，例如清空目標對象中某些屬性
    }
}

public class UserEntity {
    private Long id;
    private String name;
    private String email;
    private LocalDateTime registrationDate;

    // Getters and setters
}

public class UserDTO {
    private Long id;
    private String name;
    private String email;
    private String registrationDate; // String representation of date

    // Getters and setters
}

import org.apache.commons.beanutils.BeanUtils;

public class UserService {
    public UserDTO convertToDTO(UserEntity userEntity) {
        UserDTO userDTO = new UserDTO();
        try {
            BeanUtils.copyProperties(userDTO, userEntity);
            // 手動轉換日期格式
            userDTO.setRegistrationDate(userEntity.getRegistrationDate().toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return userDTO;
    }
}

public class UserForm {
    private String name;
    private String email;
    private String registrationDate;

    // Getters and setters
}

import org.apache.commons.beanutils.BeanUtils;

public class FormController {
    public void handleFormSubmission(UserForm userForm) {
        UserEntity userEntity = new UserEntity();
        try {
            // 從表單數(shù)據(jù)填充實體對象
            BeanUtils.copyProperties(userEntity, userForm);
            // 處理日期格式轉換
            userEntity.setRegistrationDate(LocalDateTime.parse(userForm.getRegistrationDate()));
        } catch (Exception e) {
            e.printStackTrace();
        }
        // 保存 userEntity 到數(shù)據(jù)庫
    }
}

import org.springframework.beans.BeanUtils;

public class SpringBeanUtilsExample {
    public static void main(String[] args) {
        SourceBean source = new SourceBean("Alice", 25);
        TargetBean target = new TargetBean();
        
        BeanUtils.copyProperties(source, target);
        System.out.println("Target Name: " + target.getName());
        System.out.println("Target Age: " + target.getAge());
    }
}

import org.modelmapper.ModelMapper;

public class ModelMapperExample {
    public static void main(String[] args) {
        ModelMapper modelMapper = new ModelMapper();
        SourceBean source = new SourceBean("Bob", 35);
        TargetBean target = modelMapper.map(source, TargetBean.class);
        
        System.out.println("Target Name: " + target.getName());
        System.out.println("Target Age: " + target.getAge());
    }
}

import org.mapstruct.Mapper;
import org.mapstruct.factory.Mappers;

@Mapper
public interface UserMapper {
    UserMapper INSTANCE = Mappers.getMapper(UserMapper.class);
    
    TargetBean sourceToTarget(SourceBean source);
}

public class Address {
    private String city;
    private String zipCode;

    // Getters and setters
}

public class UserEntity {
    private String name;
    private Address address;

    // Getters and setters
}

public class UserDTO {
    private String name;
    private String city;
    private String zipCode;

    // Getters and setters
}

import org.apache.commons.beanutils.BeanUtils;

public class UserService {
    public UserDTO convertToDTO(UserEntity userEntity) {
        UserDTO userDTO = new UserDTO();
        try {
            BeanUtils.copyProperties(userDTO, userEntity);
            // 手動處理嵌套屬性
            Address address = userEntity.getAddress();
            if (address != null) {
                userDTO.setCity(address.getCity());
                userDTO.setZipCode(address.getZipCode());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return userDTO;
    }
}

import org.apache.commons.beanutils.BeanUtils;

public class UserService {
    public UserDTO convertToDTO(UserEntity userEntity) {
        UserDTO userDTO = new UserDTO();
        try {
            BeanUtils.copyProperties(userDTO, userEntity);
            // 自定義轉換
            userDTO.setRegistrationDate(formatDate(userEntity.getRegistrationDate()));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return userDTO;
    }

    private String formatDate(LocalDateTime date) {
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        return date.format(formatter);
    }
}

import org.modelmapper.ModelMapper;
import org.modelmapper.PropertyMap;

public class UserService {
    private ModelMapper modelMapper = new ModelMapper();

    public UserDTO convertToDTO(UserEntity userEntity) {
        // 自定義映射規(guī)則
        modelMapper.addMappings(new PropertyMap<UserEntity, UserDTO>() {
            @Override
            protected void configure() {
                map().setCity(source.getAddress().getCity());
                map().setZipCode(source.getAddress().getZipCode());
            }
        });
        return modelMapper.map(userEntity, UserDTO.class);
    }
}

import org.mapstruct.Mapper;
import org.mapstruct.factory.Mappers;

@Mapper
public interface UserMapper {
    UserMapper INSTANCE = Mappers.getMapper(UserMapper.class);

    UserDTO userEntityToUserDTO(UserEntity userEntity);
}

import org.dozer.DozerBeanMapper;

public class UserService {
    private DozerBeanMapper mapper = new DozerBeanMapper();

    public UserDTO convertToDTO(UserEntity userEntity) {
        return mapper.map(userEntity, UserDTO.class);
    }
}