Mybatis-plus使用Wappers的简单查询

Mybatis-plus依然可以使用生成的**Mapper.xml，在其中写sql语句来查询，但是一般的简单的增删改查语句我们可以使用plus的另外一种用法实现，小编能力有限，不知道专业术语怎么描述，接下来直接上代码

实体类(通过反向生成出来的,可以看上一篇文章)

package com.ipzoe.ndk.domain.entity;

import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.extension.activerecord.Model;
import com.baomidou.mybatisplus.annotation.TableId;
import java.io.Serializable;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.experimental.Accessors;

@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
public class AdminUser extends Model {

    public static  final AdminUser INSTANCE = new AdminUser();

    private static final long serialVersionUID = 1L;

    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;
    private String sysUserName;
    private String sysUserPwd;
    private String userPhone;

    @Override
    protected Serializable pkVal() {
        return this.id;
    }

}

serviceImpl

package com.ipzoe.ndk.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ipzoe.ndk.domain.entity.AdminUser;
import com.ipzoe.ndk.mapper.AdminUserMapper;
import com.ipzoe.ndk.service.AdminUserService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;


@Service
public class AdminUserServiceImpl extends ServiceImpl implements AdminUserService {

    @Override
    public Object getList() {
        return AdminUser.INSTANCE.selectList(Wrappers.query().orderByDesc("id"));
    }
}

其他的都在实体类继承的      Model<实体>中

方法可以自己看，欢迎补充