人人框架中当前模块统一实现逻辑删除,但是不是mybatis-plus中的解决方案

mybatis-plus中提供了逻辑删除的解决方案,但是担心其他模块中并不想使用逻辑删除,只在本模块中统一实现逻辑删除,那么该怎么办呢?
解决方案:

1 自定义CrudServiceImpl,修改其中的delete方法,原理是使用了反射机制。

代码如下:

package com.broit.fish.modules.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.ReflectionKit;
import com.broit.fish.modules.service.CrudService;
import io.renren.common.page.PageData;
import io.renren.common.utils.ConvertUtils;
import org.springframework.beans.BeanUtils;
import java.lang.reflect.Field;
import java.util.List;
import java.util.Map;

/**
 *  CRUD基础服务类
 *
 * @author Mark sunlightcs@gmail.com
 */
public abstract class CrudServiceImpl<M extends BaseMapper<T>, T, D> extends BaseServiceImpl<M, T> implements CrudService<T, D> {

    protected Class<D> currentDtoClass() {
        return (Class<D>)ReflectionKit.getSuperClassGenericType(getClass(), 2);
    }

    @Override
    public PageData<D> page(Map<String, Object> params) {
        IPage<T> page = baseDao.selectPage(
            getPage(params, null, false),
            getWrapper(params)
        );

        return getPageData(page, currentDtoClass());
    }

    @Override
    public List<D> list(Map<String, Object> params) {
        List<T> entityList = baseDao.selectList(getWrapper(params));

        return ConvertUtils.sourceToTarget(entityList, currentDtoClass());
    }

    public abstract QueryWrapper<T> getWrapper(Map<String, Object> params);

    @Override
    public D get(String id) {
        T entity = baseDao.selectById(id);

        return ConvertUtils.sourceToTarget(entity, currentDtoClass());
    }

    @Override
    public void save(D dto) {
        T entity = ConvertUtils.sourceToTarget(dto, currentModelClass());
        insert(entity);

        //copy主键值到dto
        BeanUtils.copyProperties(entity, dto);
    }

    @Override
    public void update(D dto) {
        T entity = ConvertUtils.sourceToTarget(dto, currentModelClass());
        updateById(entity);
    }

    @Override
    public int delete(String[] ids, String optUserId,D dto) {
        int rows = 0;
        try{
            for(String id : ids){
                T entity = ConvertUtils.sourceToTarget(dto, currentModelClass());
                Class<? extends Object> tClass = entity.getClass();
                Field[] field = tClass.getDeclaredFields();
                for(Field f : field){
                    f.setAccessible(true);
                    if("id".equals(f.getName())){
                        f.set(entity,id);
                    }
                    if("delFlg".equals(f.getName())){
                        f.set(entity,"0");
                    }
                    if("updateUser".equals(f.getName())){
                        f.set(entity,optUserId);
                    }
                    if("updateTime".equals(f.getName())){
                        f.set(entity,System.currentTimeMillis());
                    }
                }
                if(updateById(entity)){
                    rows++;
                }
            }
        }catch (Exception e){
            e.printStackTrace();
        }
        return rows;
    }
}

2 在自己的 业务ServiceImpl 中这样调用(前提:BaseFishProductTypeServiceImpl extends CrudServiceImpl<BaseFishProductTypeDao, BaseFishProductTypeEntity, BaseFishProductTypeDTO> implements BaseFishProductTypeService):

public Result delete(String[] ids) {
        Result result = new Result();

        AssertUtils.isArrayEmpty(ids, "id");

        int rows = delete(ids, ConvertUtils.sourceToTarget(SecurityUser.getUser(), SysUserDTO.class).getId().toString(), new BaseFishProductTypeDTO());
        if(rows != ids.length) {
            result.setCode(-1);
        }

        return result;
    }
posted @ 2020-12-05 11:48  yx袁祥  阅读(527)  评论(0)    收藏  举报