Mapper层

@Mapper
public interface ExCategoryMapper extends BaseMapper<ExCategory> {
}

Service层

package co.yixiang.exam.service;import co.yixiang.exam.common.R;
import co.yixiang.exam.entity.ExStudent;
import com.baomidou.mybatisplus.core.metadata.IPage;
import org.springframework.data.domain.Pageable;import java.util.List;/*** @author Mtz* @version 1.0* @2024/5/138:55* @function* @comment*/public interface ExStudentService {/**** 学生模块分页查询* @param exStudent* @param pageable* @return*/R<IPage<ExStudent>> selectInfo(ExStudent exStudent, Pageable pageable);/**** 学生模块添加* @param exStudent* @return R<Void>*/R<Void> insertInfo(ExStudent exStudent);/**** 学生模块根据id修改* @param exStudent* @return*/R<Void> saveInfo(ExStudent exStudent);/**** 学生模块根据id获取数据* @param exStudent* @return*/R<ExStudent> getByIdInfo(ExStudent exStudent);/**** 学生模块根据集合id 批量删除数据* @param ids* @return   R<Void>*/R<Void> removeIdsInfo(List<Integer> ids);
}

Controller层

package co.yixiang.exam.controller;import co.yixiang.exam.common.R;
import co.yixiang.exam.entity.ExStudent;
import co.yixiang.exam.service.ExStudentService;
import com.baomidou.mybatisplus.core.metadata.IPage;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;import java.util.List;/*** @author Mtz* @version 1.0* @2024/5/139:35* @function* @comment 学生模块*/
@RestController
@RequestMapping("/ex/student")
public class ExStudentController {@Autowiredprivate ExStudentService exStudentService;/**** 学生模块分页查询* @param exStudent* @param pageable* @return R<IPage < ExStudent>>*/@GetMapping("/selectInfo")public R<IPage<ExStudent>> selectInfo(ExStudent exStudent, Pageable pageable) {return exStudentService.selectInfo(exStudent, pageable);}/**** 学生模块添加* @param exStudent* @return R<Void>*/@PostMapping("/insertInfo")public R<Void> insertInfo(@RequestBody ExStudent exStudent) {return exStudentService.insertInfo(exStudent);}/**** 学生模块根据id修改数据* @param exStudent* @return*/@PostMapping("/saveInfo")public R<Void> saveInfo(@Validated @RequestBody ExStudent exStudent) {return exStudentService.saveInfo(exStudent);}/**** 学生模块根据id获取数据* @param exStudent* @return*/@GetMapping("/getByIdInfo")public R<ExStudent> getByIdInfo(@Validated ExStudent exStudent) {return exStudentService.getByIdInfo(exStudent);}/**** 学生模块根据集合id 批量删除数据* @param ids* @return R<Void>*/@PostMapping("/removeIdsInfo")public R<Void> removeIdsInfo(@RequestBody List<Integer> ids) {return exStudentService.removeIdsInfo(ids);}
}