分页插件：PageHelper+BootStrap+Vue+axios实现分页功能

本教程需要有MyBatisPlus基础，学习MyBatisPlus请参考
SpringBoot第 14 讲：SpringBoot+MyBatisPlus

案例效果

技术栈

后端技术：SpringBoot2.7.9、MyBatisPlus3.5.1、MySQL8
前端技术：Vue2.5.16+axios、BootStrap3.3.7

一、后端开发

1.1、配置MyBatisPlus

1.1.1、在pom.xml中添加依赖

		<!-- Spring&SpringMVC -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- mybatis-plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
        </dependency>
        <!-- mysql-connector -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.32</version>
        </dependency>

1.1.2、在application.yml中配置数据源

server:
  port: 8070
spring:
  datasource:
    type: com.zaxxer.hikari.HikariDataSource
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.01:3306/test_plus?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&serverTimezone=GMT%2B8&allowPublicKeyRetrieval=true
    username: root
    password: Aa123123.
mybatis-plus:
  type-aliases-package: demo.entity
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
  global-config:
    db-config:
      table-prefix: t_
      id-type: auto
  mapper-locations: classpath:mappers/*.xml

1.1.3、在启动类中配置分页插件

package demo;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@SpringBootApplication
@Configuration
@MapperScan("demo.mapper")
public class Demo {
    
    

    /** 配置分页插件*/
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
    
    
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
        return interceptor;
    }

    public static void main(String[] args) {
    
    
        SpringApplication.run(Demo.class);
    }
}

1.2、后台开发

1.2.1、SQL脚本

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for t_article
-- ----------------------------
DROP TABLE IF EXISTS `t_article`;
CREATE TABLE `t_article` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `title` varchar(50) DEFAULT NULL,
  `logo` varchar(255) DEFAULT NULL,
  `descn` varchar(160) DEFAULT NULL,
  `create_time` datetime DEFAULT NULL,
  `cid` bigint(20) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1630090627736408069 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of t_article
-- ----------------------------
BEGIN;
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1, '扬子xx', NULL, 'eeeeeeee', '2023-01-02 00:00:00', 2);
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1630090618022400001, '扬子晚报1', NULL, 'dddsfjslfjalskd', '2023-01-03 00:00:00', 2);
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1630090625282740226, '扬子晚报2', NULL, 'dddsfjslfjalskd', '2023-01-04 00:00:00', 2);
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1630090625865748482, '扬子晚报3', NULL, 'dddsfjslfjalskd', '2023-01-05 00:00:00', 1);
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1630090626520059905, '扬子晚报4', NULL, 'dddsfjslfjalskd', '2023-01-06 00:00:00', 2);
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1630090627165982721, '扬子晚报5', NULL, 'dddsfjslfjalskd', '2023-01-07 00:00:00', 1);
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1630090627736408066, '扬子晚报6', NULL, 'dddsfjslfjalskd', '2023-01-08 00:00:00', 1);
INSERT INTO `t_article` (`id`, `title`, `logo`, `descn`, `create_time`, `cid`) VALUES (1630090627736408068, 'qqq1w', 'kdsjlsfjieosjfiosjdfo', 'eeeee', '2023-02-03 00:00:00', 2);
COMMIT;

-- ----------------------------
-- Table structure for t_channel
-- ----------------------------
DROP TABLE IF EXISTS `t_channel`;
CREATE TABLE `t_channel` (
  `id` bigint(20) NOT NULL,
  `channel_name` varchar(50) DEFAULT NULL,
  `create_time` datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of t_channel
-- ----------------------------
BEGIN;
INSERT INTO `t_channel` (`id`, `channel_name`, `create_time`) VALUES (1, '头条', '2023-02-27 17:27:14');
INSERT INTO `t_channel` (`id`, `channel_name`, `create_time`) VALUES (2, '头七', '2023-02-27 17:27:14');
COMMIT;

SET FOREIGN_KEY_CHECKS = 1;

1.2.2、实体Article

package demo.entity;

import lombok.Data;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;

@Data
public class Article {
    
    
	@JsonSerialize(using = ToStringSerializer.class)
    private Long id;
    private String title;
    private String logo;
    private String descn;
    private String createTime;
    private Long cid;
}

1.2.3、ArticleMapper.java

package demo.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import demo.entity.Article;
import org.apache.ibatis.annotations.Param;
import org.springframework.stereotype.Repository;

@Repository
public interface ArticleMapper extends BaseMapper<Article> {
    
    

    Page<Article> selectByPage(Page<Article> page, @Param("title") String title);
}

1.2.4、ArticleMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="demo.mapper.ArticleMapper">
    <select id="selectByPage" resultType="Article">
        select * from t_article where title like '%${title}%'
    </select>
</mapper>

1.2.5、ArticleController

package demo.controller;

import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import demo.entity.Article;
import demo.mapper.ArticleMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@CrossOrigin
public class ArticleController {
    
    

    @Autowired
    private ArticleMapper articleMapper;

    @GetMapping("/list")
    public Page<Article> findAll(Long pageIndex, Long pageSize){
    
    
        Page<Article> page = articleMapper.selectPage(new Page(pageIndex, pageSize), null);
        return page;
    }

    @GetMapping("/list_custom")
    public Page<Article> customFindAll(Long pageIndex, Long pageSize, String title){
    
    
        Page<Article> page = articleMapper.selectByPage(new Page(pageIndex, pageSize), title);
        return page;
    }
}

二、前端开发

2.1、html代码

	<div class="container" id="app">
        <table class="table table-striped">
            <caption>文章列表</caption>
            <thead>
            <tr>
                <th align="center">编号</th>
                <th align="center">标题</th>
                <th align="center">描述</th>
                <th align="center">发布时间</th>
                <th align="center">操作</th>
            </tr>
            </thead>
            <tbody>
            <tr v-for="art in articleList">
                <td>{
   
   {art.id}}</td>
                <td>{
   
   {art.title}}</td>
                <td>{
   
   {art.descn}}</td>
                <td>{
   
   {art.createTime}}</td>
                <td align="center">
                    <button class="btn btn-link" style="margin-right: 10px;">修改</button>
                    <button class="btn btn-link">删除</button>
                </td>
            </tr>
            </tbody>
        </table>
        <ul class="pagination" v-for="p in pageCnt">
            <li v-if="p == pageIndex" class="active"><a href="#" @click="doGo(p)">{
   
   {p}}</a></li>
            <li v-else="p == pageIndex"><a href="#" @click="doGo(p)">{
   
   {p}}</a></li>
        </ul>
    </div>

2.2、Js代码

	<script>
        new Vue({
    
    
            el: '#app',
            data: {
    
    
                articleList: null,
                //用于分页
                pageIndex: 1, //页码
                pageSize: 3, //每页显示的条数
                pageTotal: 0, //总条数
                pageCnt: 0 //总页数
            },
            methods: {
    
    
                requestArticleList(){
    
    
                    axios.get("http://localhost:8070/list?pageIndex="+this.pageIndex+"&pageSize="+this.pageSize).then(res => {
    
    
                        console.log(res.data)
                        this.articleList = res.data.records
                        this.pageCnt = res.data.pages
                        this.pageTotal = res.data.total
                        this.pageIndex = res.data.current
                        this.pageSize = res.data.size
                    })
                },
                doGo(p){
    
    
                    this.pageIndex = p
                    this.requestArticleList()
                }
            },
            created: function () {
    
    
                this.requestArticleList()
            }
        })
    </script>

三、附录

3.1、完整po.m.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.9</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>page-helper-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>page-helper-demo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <!-- Spring&SpringMVC -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- mybatis-plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.5.1</version>
        </dependency>
        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
        </dependency>
        <!-- mysql-connector -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.32</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>