整合Mybatis-Plus分页插件并实现分页api方法

java 复制代码

package com.example.springboot.config;

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.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@MapperScan("com.example.springboot.mapper")
public class MybatisPlusConfig {
    /**
     * 添加分页插件
     */
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL)); // 如果配置多个插件, 切记分页最后添加
        // 如果有多数据源可以不配具体类型, 否则都建议配上具体的 DbType
        return interceptor;
    }
}

java 复制代码

package com.example.springboot.controller;

import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.example.springboot.common.Result;
import com.example.springboot.entity.User;
import com.example.springboot.service.UserService;
import jakarta.annotation.Resource;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/user")
public class UserController {
    @Resource
    private UserService userService;

    /** 省略其他方法 **/

    /**
     * 分页查询用户
     * @param pageNum
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public Result findPage(@RequestParam(defaultValue = "1") Integer pageNum, @RequestParam(defaultValue = "10") Integer pageSize) {
        return Result.success(userService.page(new Page<>(pageNum, pageSize)));
    }
}

java 复制代码

// dependencies 添加
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-jsqlparser</artifactId>
    <version>3.5.17</version>
</dependency>

<!-- MySQL -->
<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.0.33</version>
</dependency>