详解MyBatisPlus如何实现分页和查询操作

package com.didiplus.modules.sys.domain.entity.dto;

import lombok.Data;

/**
 * Author: didiplus
 * Email: 972479352@qq.com
 * CreateTime: 2022/5/7
 * Desc:  检索字段
 */
@Data
public class DictTypeRquest {

    /**
     * 字段名称
     */
    private String typeName;

    /**
     * 字段编码
     */
    private String typeCode;
    
    /**
     * 是否启用
     */
    private String enable;
}

public interface ISysDictTypeService extends IService<SysDictTypeEntity> {


    /**
    * 分页查询
    * @param pageDomain
     * @param dictTypeRquest
    * @return
    */
    IPage<SysDictTypeEntity> page(PageDomain pageDomain, DictTypeRquest dictTypeRquest);

}

@Service
public class SysDictTypeServiceImpl extends ServiceImpl<SysDictTypeMapper, SysDictTypeEntity> implements ISysDictTypeService {


        @Resource
        SysDictTypeMapper sysDictTypeMapper;
        @Override
        public IPage<SysDictTypeEntity> page(PageDomain pageDomain, DictTypeRquest dictTypeRquest) {
            IPage<SysDictTypeEntity> page = new Page<>(pageDomain.getPage(),pageDomain.getLimit());
             LambdaQueryWrapper<SysDictTypeEntity> lambdaQueryWrapper = new LambdaQueryWrapper<>();
             lambdaQueryWrapper.like(StrUtil.isNotEmpty(dictTypeRquest.getTypeName()),SysDictTypeEntity::getTypeName,dictTypeRquest.getTypeName())
                     .like(StrUtil.isNotEmpty(dictTypeRquest.getTypeCode()),SysDictTypeEntity::getTypeCode,dictTypeRquest.getTypeCode())
                     .eq(StrUtil.isNotEmpty(dictTypeRquest.getEnable()),SysDictTypeEntity::getEnable,dictTypeRquest.getEnable());
            return sysDictTypeMapper.selectPage(page,lambdaQueryWrapper);
        }
}

    /**
     * 分页查询
     * @param pageDomain 分页对象
     * @param dictTypeRquest 
     * @return IPage
     */
    @ApiOperation(value = "分页查询", notes = "分页查询")
    @GetMapping("/page")
    public IPage<SysDictTypeEntity> getSysDictTypePage(PageDomain pageDomain, DictTypeRquest dictTypeRquest) {
        return sysDictTypeService.page(pageDomain,dictTypeRquest);
    }