转vo

package com.example.util;



import com.alibaba.fastjson.JSON;
import com.example.commom.PO;
import com.example.commom.VO;
import org.springframework.beans.BeanUtils;
import java.util.*;

public class CommonsUtils {



    private static final Random random = new Random();









    public static VO toVO(PO po) {
        VO vo = ReflectUtils.newInstance(po.getVO());
        BeanUtils.copyProperties(po, vo);
        return vo;
    }


    public static List<VO> toVO(List<PO> poList) {
        List<VO> voList = null;
        if (null != poList && !poList.isEmpty()) {
            voList = new ArrayList<>();
            for (PO po : poList) {
                voList.add(toVO(po));
            }
        }
        return voList;
    }

    public static <T> T toPO(VO vo) {
        PO po = ReflectUtils.newInstance(vo.getPO());
        BeanUtils.copyProperties(vo, po);
        return (T) po;
    }

    public static <T> List<T> toPO(List<VO> voList) {
        List<T> poList = null;
        if (null != voList && !voList.isEmpty()) {
            voList = new ArrayList<>();
            for (VO vo : voList) {
                poList.add(toPO(vo));
            }
        }
        return poList;
    }


}

package com.example.util;



import org.springframework.util.Assert;
import org.springframework.util.StringUtils;

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;

public class ReflectUtils {



    public static <T> T newInstance(Class clazz) {
        Object value = null;
        try {
            value = clazz.getDeclaredConstructor().newInstance();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
        return (T) value;
    }



}

package com.example.commom;

public interface PO {
    Class getVO();
}


package com.example.commom;

public interface VO {
    Class getPO();
}

package com.example.vo;

import com.example.commom.VO;
import com.example.po.AccountPO;

public class AccountVO implements VO {

    private String name;

    private String password;

    private Address address;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Address getAddress() {
        return address;
    }

    public void setAddress(Address address) {
        this.address = address;
    }

    public static class Address{

        String address;

        String code ;

        public String getAddress() {
            return address;
        }

        public void setAddress(String address) {
            this.address = address;
        }

        public String getCode() {
            return code;
        }

        public void setCode(String code) {
            this.code = code;
        }
    }

    @Override
    public Class getPO() {
        return AccountPO.class;
    }
}

package com.example.po;

import com.example.commom.PO;
import com.example.vo.AccountVO;

import java.io.Serializable;

public class AccountPO implements PO, Serializable {
    private String name;

    private String password;

    private Address address;

    public Address getAddress() {
        return address;
    }

    public void setAddress(Address address) {
        this.address = address;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public static class Address{

        String address;

        String code ;

        public String getAddress() {
            return address;
        }

        public void setAddress(String address) {
            this.address = address;
        }

        public String getCode() {
            return code;
        }

        public void setCode(String code) {
            this.code = code;
        }
    }


    @Override
    public Class getVO() {
        return AccountVO.class;
    }
}