目录
[本文的house表 直接复制粘贴运行即可](#本文的house表 直接复制粘贴运行即可)
导入依赖
XML
<!--注意 SpringBoot3的依赖与Spring Boot2的MybatisPlus并不相同 错用会报错-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-spring-boot3-starter</artifactId>
<version>3.5.5</version>
</dependency>
本文的house表 直接复制粘贴运行即可
bash
/*
Navicat Premium Data Transfer
Source Server : localDB
Source Server Type : MySQL
Source Server Version : 50743
Source Host : localhost:3306
Source Schema : property_management_db
Target Server Type : MySQL
Target Server Version : 50743
File Encoding : 65001
Date: 10/10/2024 16:05:51
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for house
-- ----------------------------
DROP TABLE IF EXISTS `house`;
CREATE TABLE `house` (
`id` int(6) UNSIGNED ZEROFILL NOT NULL AUTO_INCREMENT COMMENT '自增主键',
`parent_building` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '所属楼宇',
`parent_unit` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '所属单元',
`parent_floor` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '所属楼层',
`house_num` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '房间号',
`house_size` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '房间大小',
`house_type` varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '房间户型',
`is_sold` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT '0' COMMENT '是否售出:0未售出1已售出',
`user_id` int(6) UNSIGNED ZEROFILL NULL DEFAULT NULL COMMENT '住户ID(实际住户)',
`owner_id` int(6) UNSIGNED ZEROFILL NULL DEFAULT NULL COMMENT '业主ID(实际房屋拥有者)',
PRIMARY KEY (`id`) USING BTREE,
INDEX `fk_house_info_user_user`(`user_id`) USING BTREE,
INDEX `fk_house_info_owner_user`(`owner_id`) USING BTREE,
CONSTRAINT `fk_house_info_owner_user` FOREIGN KEY (`owner_id`) REFERENCES `user` (`id`) ON DELETE SET NULL ON UPDATE CASCADE,
CONSTRAINT `fk_house_info_user_user` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`) ON DELETE SET NULL ON UPDATE CASCADE
) ENGINE = InnoDB AUTO_INCREMENT = 127 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '住房详细信息 ' ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of house
-- ----------------------------
INSERT INTO `house` VALUES (000001, '1', '1', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000002, '1', '1', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000003, '1', '1', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000004, '1', '1', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000005, '1', '1', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000006, '1', '1', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000007, '1', '1', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000008, '1', '1', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000009, '1', '1', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000010, '1', '1', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000011, '1', '1', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000012, '1', '1', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000013, '1', '1', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000014, '1', '1', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000015, '1', '2', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000016, '1', '2', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000017, '1', '2', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000018, '1', '2', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000019, '1', '2', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000020, '1', '2', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000021, '1', '2', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000022, '1', '2', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000023, '1', '2', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000024, '1', '2', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000025, '1', '2', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000026, '1', '2', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000027, '1', '2', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000028, '1', '2', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000029, '1', '3', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000030, '1', '3', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000031, '1', '3', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000032, '1', '3', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000033, '1', '3', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000034, '1', '3', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000035, '1', '3', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000036, '1', '3', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000037, '1', '3', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000038, '1', '3', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000039, '1', '3', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000040, '1', '3', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000041, '1', '3', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000042, '1', '3', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000043, '2', '1', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000044, '2', '1', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000045, '2', '1', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000046, '2', '1', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000047, '2', '1', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000048, '2', '1', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000049, '2', '1', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000050, '2', '1', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000051, '2', '1', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000052, '2', '1', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000053, '2', '1', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000054, '2', '1', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000055, '2', '1', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000056, '2', '1', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000057, '2', '2', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000058, '2', '2', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000059, '2', '2', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000060, '2', '2', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000061, '2', '2', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000062, '2', '2', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000063, '2', '2', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000064, '2', '2', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000065, '2', '2', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000066, '2', '2', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000067, '2', '2', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000068, '2', '2', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000069, '2', '2', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000070, '2', '2', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000071, '2', '3', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000072, '2', '3', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000073, '2', '3', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000074, '2', '3', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000075, '2', '3', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000076, '2', '3', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000077, '2', '3', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000078, '2', '3', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000079, '2', '3', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000080, '2', '3', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000081, '2', '3', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000082, '2', '3', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000083, '2', '3', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000084, '2', '3', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000085, '3', '1', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000086, '3', '1', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000087, '3', '1', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000088, '3', '1', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000089, '3', '1', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000090, '3', '1', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000091, '3', '1', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000092, '3', '1', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000093, '3', '1', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000094, '3', '1', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000095, '3', '1', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000096, '3', '1', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000097, '3', '1', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000098, '3', '1', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000099, '3', '2', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000100, '3', '2', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000101, '3', '2', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000102, '3', '2', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000103, '3', '2', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000104, '3', '2', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000105, '3', '2', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000106, '3', '2', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000107, '3', '2', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000108, '3', '2', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000109, '3', '2', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000110, '3', '2', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000111, '3', '2', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000112, '3', '2', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000113, '3', '3', '1', '101', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000114, '3', '3', '1', '102', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000115, '3', '3', '2', '201', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000116, '3', '3', '2', '202', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000117, '3', '3', '3', '301', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000118, '3', '3', '3', '302', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000119, '3', '3', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000120, '3', '3', '4', '401', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000121, '3', '3', '5', '501', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000122, '3', '3', '5', '502', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000123, '3', '3', '6', '601', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000124, '3', '3', '6', '602', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000125, '3', '3', '7', '701', '120', '三室一厅一厨两卫', '0', NULL, NULL);
INSERT INTO `house` VALUES (000126, '3', '3', '7', '702', '120', '三室一厅一厨两卫', '0', NULL, NULL);
SET FOREIGN_KEY_CHECKS = 1;
MybatisConfig配置文件
添加MybatisPlusInterceptor代理对象,并添加分页插件到该代理对象。
java
package com.xingdian.config;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MybatisConfig {
/**
* 为MyBatis Plus插件创建一个MybatisPlusInterceptor代理对象,
* 并添加了分页插件(PaginationInnerInterceptor)到该代理对象中。这样,在应用中,
* 只需要将MybatisPlusInterceptor对象注入到需要的地方,就可以轻松地启用MyBatis Plus插件的分页功能。
*/
@Bean
public MybatisPlusInterceptor paginationInterceptor(){
//新建MybatisPlus拦截器
MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
//新建分页拦截器paginationInnerInterceptor
PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor();
//设置分页拦截器的一些属性
paginationInnerInterceptor.setOverflow(true);
paginationInnerInterceptor.setMaxLimit(100L);
//把分页拦截器添加到MybatisPlus拦截器中
mybatisPlusInterceptor.addInnerInterceptor(paginationInnerInterceptor);
//添加组件,大功告成!
return mybatisPlusInterceptor;
}
}
创建数据库对应的实体类
java
package com.xingdian.pojo;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
@Data
@TableName("house")
public class House {
/**
* 自增主键
*/
private Integer id;
/**
* 所属楼宇
*/
private String parentBuilding;
/**
* 所属单元
*/
private String parentUnit;
/**
* 所属楼层
*/
private String parentFloor;
/**
* 房间号
*/
private String houseNum;
/**
* 房间大小
*/
private String houseSize;
/**
* 房间户型
*/
private String houseType;
/**
* 是否售出:0未售出1已售出
*/
private String isSold;
/**
* 绑定的住户ID(已绑定也代表已售出)
*/
private Integer userId;
/**
* 业主ID(如果售出则不可为空)
*/
private String ownerId;
}
创建mapper层接口
在mapper包下创建操作user表的数据库接口
java
package com.xingdian.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.xingdian.pojo.House;
import com.xingdian.pojo.User;
import org.apache.ibatis.annotations.Mapper;
@Mapper
public interface HouseMapper extends BaseMapper<House> {
}
在service包下创建xxxService接口
java
package com.xingdian.service.impl;
import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xingdian.mapper.HouseMapper;
import com.xingdian.pojo.House;
import com.xingdian.service.IHouseService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class HouseService extends ServiceImpl<HouseMapper, House> implements IHouseService {
@Autowired
private HouseMapper houseMapper;
public IPage<House> getDataByPage(int current,int size, House house){
IPage<House> page = new Page<>(current,size);
QueryWrapper<House> queryWrapper = new QueryWrapper<>();
// 动态构建查询条件
queryWrapper.lambda().eq(house.getParentBuilding()!=null, House::getParentBuilding,house.getParentBuilding())
.eq(house.getParentUnit()!=null,House::getParentUnit,house.getParentUnit())
.eq(house.getParentFloor()!=null,House::getParentFloor,house.getParentFloor())
.eq(house.getHouseNum()!=null,House::getHouseNum,house.getHouseNum())
.eq(house.getHouseSize()!=null,House::getHouseSize,house.getHouseSize())
.eq(house.getHouseType()!=null,House::getHouseType,house.getHouseType())
.eq(house.getIsSold()!=null,House::getIsSold,house.getIsSold());
return houseMapper.selectPage(page,queryWrapper);
}
}
在impl包下创建具体的业务层逻辑处理实现类
java
package com.xingdian.service.impl;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xingdian.entity.User;
import com.xingdian.mapper.UserMapper;
import com.xingdian.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserService extends ServiceImpl<UserMapper,User> implements IUserService {
@Autowired
private UserMapper userMapper;
@Override
public List<User> getAllUsers() {
return userMapper.selectList(null);
}
@Override
public User getUserById(int id) {
return userMapper.selectById(id);
}
}
controller层创建XXXController类
java
package com.xingdian.controller;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.xingdian.enums.ResponseStatusEnum;
import com.xingdian.pojo.House;
import com.xingdian.pojo.User;
import com.xingdian.pojo.dto.ResponseDTO;
import com.xingdian.service.impl.HouseService;
import com.xingdian.service.impl.UserService;
import lombok.extern.log4j.Log4j2;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.*;
@Log4j2
@RestController
@RequestMapping("user")
public class HouseController {
private final HouseService houseService;
public HouseController(HouseService houseService) {
this.houseService = houseService;
}
/**
* @param house 分页查询条件
* @param page 当前页
* @param rows 当前页的数据条数
* @return
*/
@GetMapping("getDataByPage")
public ResponseDTO<IPage> getDataByPage(House house, int page, int rows) {
if (house == null || page<=0 || rows<=0)
return ResponseDTO.failure(ResponseStatusEnum.PARAM_IS_INVALID);
//支支持其他属性的条件分页查询
house.setId(null);
house.setOwnerId(null);
house.setUserId(null);
return ResponseDTO.success(houseService.getDataByPage(page,rows,house));
}
}