SpringBoot与PageHelper的整合示例详解

SpringBoot与PageHelper的整合示例详解

1.PageHelper简介

PageHelper官网地址:

https://pagehelper.github.io/

摘要: com.github.pagehelper.PageHelper是一款好用的开源免费的Mybatis第三方物理分页插件。

PageHelper是一款好用的开源免费的Mybatis第三方物理分页插件，其实我并不想加上好用两个字，但是为了表扬插件作者开源免费的崇高精神，我毫不犹豫的加上了好用一词作为赞美。

原本以为分页插件，应该是很简单的，然而PageHelper比我想象的要复杂许多，它做的很强大，也很彻底，强大到使用者可能并不需要这么多功能，彻底到一参可以两用。但是，我认为，作为分页插件，完成物理分页任务是根本，其它的很多智能并不是必要的，保持它够傻够憨，专业术语叫stupid，简单就是美。

我们将简单介绍PageHelper的基本使用和配置参数的含义，重点分析PageHelper作为Mybatis分页插件的实现原理。

2.SpringBoot与PageHelper的整合示例

结构图如下:

pom.xml:

    
        4.0.0

        com.home
        springbootdemo
        0.0.1-SNAPSHOT
        jar

        springbootdemo
        Demo project for Spring Boot

        
            org.springframework.boot
            spring-boot-starter-parent
            2.0.3.RELEASE
             
        

        
            UTF-8
            UTF-8
            1.8
        

        
            
                org.springframework.boot
                spring-boot-starter-web
            

            
                org.springframework.boot
                spring-boot-starter-test
                test
            


            
            
                org.mybatis.spring.boot
                mybatis-spring-boot-starter
                1.2.0
            
            
                mysql
                mysql-connector-java
            
            
            
                com.alibaba
                druid
                1.0.25
            
            
            
                org.springframework.boot
                spring-boot-starter-data-redis
            

            
            
                com.github.pagehelper
                pagehelper-spring-boot-starter
                1.2.3
            


            
            
                org.projectlombok
                lombok
            
            
                org.springframework.boot
                spring-boot-starter-thymeleaf
            
            
                org.springframework.boot
                spring-boot-starter-actuator
            

            
            
            org.springframework.boot
            spring-boot-devtools
            true 
            

        

        
            
                
                    org.springframework.boot
                    spring-boot-maven-plugin
                    
                        true
                    
                
            
        

    

OrderPresentController:

package com.home.orderpresentdemo.controller;

import com.github.pagehelper.PageInfo;
import com.home.orderpresentdemo.entity.OrderPresentInfo;
import com.home.orderpresentdemo.service.OrderPresentInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.HashMap;
import java.util.List;
@Controller
@RequestMapping("/")
public class OrderPresentController {

    @Autowired
    private OrderPresentInfoService orderPresentService;


    /**
     * 跳转到应用列表页面
     * @param pageNo 要显示第几页内容
     * @param pageSize 一页显示多少条
     * @return
     */
    @RequestMapping("/list")
    @ResponseBody
    public  PageInfo list(@RequestParam(value="pageNo",defaultValue="1")int pageNo, @RequestParam(value="pageSize",defaultValue="10")int pageSize) {
        PageInfo page = orderPresentService.getAllOrderPresentForPage(pageNo,pageSize);
        return  page;
    }





    @RequestMapping("/")
    public String helloHtml(HashMap map, Model model) {
        model.addAttribute("say","欢迎欢迎,热烈欢迎");
        map.put("hello", "欢迎进入HTML页面");
        return "index";
    }

    @RequestMapping("/goToAdd")
    public String goToAdd() {
        return "add";
    }

    @RequestMapping("/add")
    public String add(OrderPresentInfo orderPresent) {
        return "添加成功";
    }

}

OrderPresentInfoService:

package com.home.orderpresentdemo.service;

import com.github.pagehelper.PageInfo;
import com.home.orderpresentdemo.entity.OrderPresentInfo;

import java.util.List;

public interface OrderPresentInfoService {
    List getAllOrderPresent();

    PageInfo getAllOrderPresentForPage(int pageNo, int pageSize);
}

OrderPresentInfoServiceImpl:

package com.home.orderpresentdemo.service.impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.home.orderpresentdemo.entity.OrderPresentInfo;
import com.home.orderpresentdemo.mapper.OrderPresentInfoMapper;
import com.home.orderpresentdemo.service.OrderPresentInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class OrderPresentInfoServiceImpl implements OrderPresentInfoService {


    @Autowired
    private OrderPresentInfoMapper orderPresentMapper;

    @Override
    public List getAllOrderPresent() {
        return orderPresentMapper.getAllOrderPresent();
    }

    @Override
    public PageInfo getAllOrderPresentForPage(int pageNo, int pageSize) {

        PageHelper.startPage(pageNo,pageSize);
        List allOrderPresentList = orderPresentMapper.getAllOrderPresent();
        PageInfo pageInfo = new PageInfo<>(allOrderPresentList);
        return pageInfo;
    }
}

OrderPresentInfo:

package com.home.orderpresentdemo.entity;

import java.math.BigDecimal;
import java.util.Date;

public class OrderPresentInfo {
    private Long id;

    private String activityName;

    private Date beginTime;

    private Date endTime;

    private Integer activityStoresSelectType;

    private String activityStoresIds;

    private Integer memberLevelSelectType;

    private String memberLevelIds;

    private BigDecimal activityOrderConsume;

    private String paymentChannelIds;

    private Integer equityType;

    private Long couponId;

    private Long luckyTurningId;

    private Integer activityStatus;

    private Date createTime;

    private Date updateTime;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getActivityName() {
        return activityName;
    }

    public void setActivityName(String activityName) {
        this.activityName = activityName == null ? null : activityName.trim();
    }

    public Date getBeginTime() {
        return beginTime;
    }

    public void setBeginTime(Date beginTime) {
        this.beginTime = beginTime;
    }

    public Date getEndTime() {
        return endTime;
    }

    public void setEndTime(Date endTime) {
        this.endTime = endTime;
    }

    public Integer getActivityStoresSelectType() {
        return activityStoresSelectType;
    }

    public void setActivityStoresSelectType(Integer activityStoresSelectType) {
        this.activityStoresSelectType = activityStoresSelectType;
    }

    public String getActivityStoresIds() {
        return activityStoresIds;
    }

    public void setActivityStoresIds(String activityStoresIds) {
        this.activityStoresIds = activityStoresIds == null ? null : activityStoresIds.trim();
    }

    public Integer getMemberLevelSelectType() {
        return memberLevelSelectType;
    }

    public void setMemberLevelSelectType(Integer memberLevelSelectType) {
        this.memberLevelSelectType = memberLevelSelectType;
    }

    public String getMemberLevelIds() {
        return memberLevelIds;
    }

    public void setMemberLevelIds(String memberLevelIds) {
        this.memberLevelIds = memberLevelIds == null ? null : memberLevelIds.trim();
    }

    public BigDecimal getActivityOrderConsume() {
        return activityOrderConsume;
    }

    public void setActivityOrderConsume(BigDecimal activityOrderConsume) {
        this.activityOrderConsume = activityOrderConsume;
    }

    public String getPaymentChannelIds() {
        return paymentChannelIds;
    }

    public void setPaymentChannelIds(String paymentChannelIds) {
        this.paymentChannelIds = paymentChannelIds == null ? null : paymentChannelIds.trim();
    }

    public Integer getEquityType() {
        return equityType;
    }

    public void setEquityType(Integer equityType) {
        this.equityType = equityType;
    }

    public Long getCouponId() {
        return couponId;
    }

    public void setCouponId(Long couponId) {
        this.couponId = couponId;
    }

    public Long getLuckyTurningId() {
        return luckyTurningId;
    }

    public void setLuckyTurningId(Long luckyTurningId) {
        this.luckyTurningId = luckyTurningId;
    }

    public Integer getActivityStatus() {
        return activityStatus;
    }

    public void setActivityStatus(Integer activityStatus) {
        this.activityStatus = activityStatus;
    }

    public Date getCreateTime() {
        return createTime;
    }

    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    public Date getUpdateTime() {
        return updateTime;
    }

    public void setUpdateTime(Date updateTime) {
        this.updateTime = updateTime;
    }
}

OrderPresentInfoMapper:

package com.home.orderpresentdemo.mapper;


import com.home.orderpresentdemo.entity.OrderPresentInfo;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;

@Mapper
public interface OrderPresentInfoMapper {
    int deleteByPrimaryKey(Long id);

    int insert(OrderPresentInfo record);

    int insertSelective(OrderPresentInfo record);

    OrderPresentInfo selectByPrimaryKey(Long id);

    int updateByPrimaryKeySelective(OrderPresentInfo record);

    int updateByPrimaryKey(OrderPresentInfo record);

    List getAllOrderPresent();
}

OrderPresentInfoMapper.xml:

  
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
  
  
    ID, ACTIVITY_NAME, BEGIN_TIME, END_TIME, ACTIVITY_STORES_SELECT_TYPE, ACTIVITY_STORES_IDS, 
    MEMBER_LEVEL_SELECT_TYPE, MEMBER_LEVEL_IDS, ACTIVITY_ORDER_CONSUME, PAYMENT_CHANNEL_IDS, 
    EQUITY_TYPE, COUPON_ID, LUCKY_TURNING_ID, ACTIVITY_STATUS, CREATE_TIME, UPDATE_TIME
  
  
    select 
    
    from dss_wsh_order_present_info
    where ID = #{id,jdbcType=BIGINT}
  
  
    select
    
    from dss_wsh_order_present_info
  
  
    delete from dss_wsh_order_present_info
    where ID = #{id,jdbcType=BIGINT}
  
  
    insert into dss_wsh_order_present_info (ID, ACTIVITY_NAME, BEGIN_TIME, 
      END_TIME, ACTIVITY_STORES_SELECT_TYPE, ACTIVITY_STORES_IDS, 
      MEMBER_LEVEL_SELECT_TYPE, MEMBER_LEVEL_IDS, 
      ACTIVITY_ORDER_CONSUME, PAYMENT_CHANNEL_IDS, 
      EQUITY_TYPE, COUPON_ID, LUCKY_TURNING_ID, 
      ACTIVITY_STATUS, CREATE_TIME, UPDATE_TIME
      )
    values (#{id,jdbcType=BIGINT}, #{activityName,jdbcType=VARCHAR}, #{beginTime,jdbcType=TIMESTAMP}, 
      #{endTime,jdbcType=TIMESTAMP}, #{activityStoresSelectType,jdbcType=INTEGER}, #{activityStoresIds,jdbcType=VARCHAR}, 
      #{memberLevelSelectType,jdbcType=INTEGER}, #{memberLevelIds,jdbcType=VARCHAR}, 
      #{activityOrderConsume,jdbcType=DECIMAL}, #{paymentChannelIds,jdbcType=VARCHAR}, 
      #{equityType,jdbcType=INTEGER}, #{couponId,jdbcType=BIGINT}, #{luckyTurningId,jdbcType=BIGINT}, 
      #{activityStatus,jdbcType=INTEGER}, #{createTime,jdbcType=TIMESTAMP}, #{updateTime,jdbcType=TIMESTAMP}
      )
  
  
    insert into dss_wsh_order_present_info
    
      
        ID,
      
      
        ACTIVITY_NAME,
      
      
        BEGIN_TIME,
      
      
        END_TIME,
      
      
        ACTIVITY_STORES_SELECT_TYPE,
      
      
        ACTIVITY_STORES_IDS,
      
      
        MEMBER_LEVEL_SELECT_TYPE,
      
      
        MEMBER_LEVEL_IDS,
      
      
        ACTIVITY_ORDER_CONSUME,
      
      
        PAYMENT_CHANNEL_IDS,
      
      
        EQUITY_TYPE,
      
      
        COUPON_ID,
      
      
        LUCKY_TURNING_ID,
      
      
        ACTIVITY_STATUS,
      
      
        CREATE_TIME,
      
      
        UPDATE_TIME,
      
    
    
      
        #{id,jdbcType=BIGINT},
      
      
        #{activityName,jdbcType=VARCHAR},
      
      
        #{beginTime,jdbcType=TIMESTAMP},
      
      
        #{endTime,jdbcType=TIMESTAMP},
      
      
        #{activityStoresSelectType,jdbcType=INTEGER},
      
      
        #{activityStoresIds,jdbcType=VARCHAR},
      
      
        #{memberLevelSelectType,jdbcType=INTEGER},
      
      
        #{memberLevelIds,jdbcType=VARCHAR},
      
      
        #{activityOrderConsume,jdbcType=DECIMAL},
      
      
        #{paymentChannelIds,jdbcType=VARCHAR},
      
      
        #{equityType,jdbcType=INTEGER},
      
      
        #{couponId,jdbcType=BIGINT},
      
      
        #{luckyTurningId,jdbcType=BIGINT},
      
      
        #{activityStatus,jdbcType=INTEGER},
      
      
        #{createTime,jdbcType=TIMESTAMP},
      
      
        #{updateTime,jdbcType=TIMESTAMP},
      
    
  
  
    update dss_wsh_order_present_info
    
      
        ACTIVITY_NAME = #{activityName,jdbcType=VARCHAR},
      
      
        BEGIN_TIME = #{beginTime,jdbcType=TIMESTAMP},
      
      
        END_TIME = #{endTime,jdbcType=TIMESTAMP},
      
      
        ACTIVITY_STORES_SELECT_TYPE = #{activityStoresSelectType,jdbcType=INTEGER},
      
      
        ACTIVITY_STORES_IDS = #{activityStoresIds,jdbcType=VARCHAR},
      
      
        MEMBER_LEVEL_SELECT_TYPE = #{memberLevelSelectType,jdbcType=INTEGER},
      
      
        MEMBER_LEVEL_IDS = #{memberLevelIds,jdbcType=VARCHAR},
      
      
        ACTIVITY_ORDER_CONSUME = #{activityOrderConsume,jdbcType=DECIMAL},
      
      
        PAYMENT_CHANNEL_IDS = #{paymentChannelIds,jdbcType=VARCHAR},
      
      
        EQUITY_TYPE = #{equityType,jdbcType=INTEGER},
      
      
        COUPON_ID = #{couponId,jdbcType=BIGINT},
      
      
        LUCKY_TURNING_ID = #{luckyTurningId,jdbcType=BIGINT},
      
      
        ACTIVITY_STATUS = #{activityStatus,jdbcType=INTEGER},
      
      
        CREATE_TIME = #{createTime,jdbcType=TIMESTAMP},
      
      
        UPDATE_TIME = #{updateTime,jdbcType=TIMESTAMP},
      
    
    where ID = #{id,jdbcType=BIGINT}
  
  
    update dss_wsh_order_present_info
    set ACTIVITY_NAME = #{activityName,jdbcType=VARCHAR},
      BEGIN_TIME = #{beginTime,jdbcType=TIMESTAMP},
      END_TIME = #{endTime,jdbcType=TIMESTAMP},
      ACTIVITY_STORES_SELECT_TYPE = #{activityStoresSelectType,jdbcType=INTEGER},
      ACTIVITY_STORES_IDS = #{activityStoresIds,jdbcType=VARCHAR},
      MEMBER_LEVEL_SELECT_TYPE = #{memberLevelSelectType,jdbcType=INTEGER},
      MEMBER_LEVEL_IDS = #{memberLevelIds,jdbcType=VARCHAR},
      ACTIVITY_ORDER_CONSUME = #{activityOrderConsume,jdbcType=DECIMAL},
      PAYMENT_CHANNEL_IDS = #{paymentChannelIds,jdbcType=VARCHAR},
      EQUITY_TYPE = #{equityType,jdbcType=INTEGER},
      COUPON_ID = #{couponId,jdbcType=BIGINT},
      LUCKY_TURNING_ID = #{luckyTurningId,jdbcType=BIGINT},
      ACTIVITY_STATUS = #{activityStatus,jdbcType=INTEGER},
      CREATE_TIME = #{createTime,jdbcType=TIMESTAMP},
      UPDATE_TIME = #{updateTime,jdbcType=TIMESTAMP}
    where ID = #{id,jdbcType=BIGINT}
  

SqlMapperConfig.xml:

index.html(这里测试写的比较随意,可以忽略):

    
    


Hello Spring Boot!!!

添加


    

application.properties:

#server.port=80
logging.level.org.springframework=DEBUG
#springboot   mybatis
#jiazai mybatis peizhiwenjian
mybatis.mapper-locations = classpath:mapper/*Mapper.xml
#mybatis.config-location = classpath:mybatis/sqlMapConfig.xml
#mybatis.type-aliases-package = com.demo.bean

#shujuyuan
spring.datasource.driver-class-name= com.mysql.jdbc.Driver
spring.datasource.url = jdbc:mysql://localhost:3306/dss_wshop?useUnicode=true&characterEncoding=utf-8
spring.datasource.username = root
spring.datasource.password = root

spring.thymeleaf.prefix=classpath:/templates/

#禁止thymeleaf缓存（建议：开发环境设置为false，生成环境设置为true）
spring.thymeleaf.cache=false


#pagehelper分页插件配置 以下属性不加也可以实现分页功能
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.supportMethodsArguments=true
pagehelper.params=count=countSql

获得结果如下所示: