diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/ClassController.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/ClassController.java
new file mode 100644
index 00000000..90b8fa7b
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/ClassController.java
@@ -0,0 +1,118 @@
+package pc.exam.pp.module.exam.controller.admin.classs;
+
+import org.springframework.web.bind.annotation.*;
+import jakarta.annotation.Resource;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.security.access.prepost.PreAuthorize;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.Operation;
+
+import jakarta.validation.constraints.*;
+import jakarta.validation.*;
+import jakarta.servlet.http.*;
+import java.util.*;
+import java.io.IOException;
+
+import pc.exam.pp.framework.common.pojo.PageParam;
+import pc.exam.pp.framework.common.pojo.PageResult;
+import pc.exam.pp.framework.common.pojo.CommonResult;
+import pc.exam.pp.framework.common.util.object.BeanUtils;
+import static pc.exam.pp.framework.common.pojo.CommonResult.success;
+
+import pc.exam.pp.framework.excel.core.util.ExcelUtils;
+
+import pc.exam.pp.framework.apilog.core.annotation.ApiAccessLog;
+import static pc.exam.pp.framework.apilog.core.enums.OperateTypeEnum.*;
+
+import pc.exam.pp.module.exam.controller.admin.classs.vo.*;
+import pc.exam.pp.module.exam.dal.dataobject.classs.ClassDO;
+import pc.exam.pp.module.exam.service.classs.ClassService;
+
+@Tag(name = "管理后台 - 学生班级")
+@RestController
+@RequestMapping("/exam/class")
+@Validated
+public class ClassController {
+
+    @Resource
+    private ClassService classService;
+
+    @PostMapping("/create")
+    @Operation(summary = "创建学生班级")
+    @PreAuthorize("@ss.hasPermission('exam:class:create')")
+    public CommonResult<Long> createClass(@Valid @RequestBody ClassSaveReqVO createReqVO) {
+        return success(classService.createClass(createReqVO));
+    }
+
+    @PutMapping("/update")
+    @Operation(summary = "更新学生班级")
+    @PreAuthorize("@ss.hasPermission('exam:class:update')")
+    public CommonResult<Boolean> updateClass(@Valid @RequestBody ClassSaveReqVO updateReqVO) {
+        classService.updateClass(updateReqVO);
+        return success(true);
+    }
+
+    @DeleteMapping("/delete")
+    @Operation(summary = "删除学生班级")
+    @Parameter(name = "id", description = "编号", required = true)
+    @PreAuthorize("@ss.hasPermission('exam:class:delete')")
+    public CommonResult<Boolean> deleteClass(@RequestParam("id") Long id) {
+        classService.deleteClass(id);
+        return success(true);
+    }
+
+    @GetMapping("/get")
+    @Operation(summary = "获得学生班级")
+    @Parameter(name = "id", description = "编号", required = true, example = "1024")
+    @PreAuthorize("@ss.hasPermission('exam:class:query')")
+    public CommonResult<ClassRespVO> getClass(@RequestParam("id") Long id) {
+        ClassDO classs = classService.getClass(id);
+        return success(BeanUtils.toBean(classs, ClassRespVO.class));
+    }
+
+    @GetMapping("/getClassName")
+    @Operation(summary = "获得班级名称列表")
+    @Parameter(name = "id", description = "编号", required = true, example = "1024")
+    public CommonResult<List<ClassNameReturnVO>> getClassName() {
+        List<ClassNameReturnVO> className = classService.getClassName();
+        return success(BeanUtils.toBean(className, ClassNameReturnVO.class));
+    }
+
+    @GetMapping("/getClassIdName")
+    @Operation(summary = "获得班级名称ID列表")
+    @Parameter(name = "id", description = "编号", required = true, example = "1024")
+    public CommonResult<List<ClassDoReturnVO>> getClassIdName() {
+        List<ClassDoReturnVO> classDo = classService.getClassIdName();
+        return success(BeanUtils.toBean(classDo, ClassDoReturnVO.class));
+    }
+
+    @GetMapping("/page")
+    @Operation(summary = "获得学生班级分页")
+    @PreAuthorize("@ss.hasPermission('exam:class:query')")
+    public CommonResult<PageResult<ClassRespVO>> getClassPage(@Valid ClassPageReqVO pageReqVO) {
+        PageResult<ClassDO> pageResult = classService.getClassPage(pageReqVO);
+        return success(BeanUtils.toBean(pageResult, ClassRespVO.class));
+    }
+
+    @PostMapping("/binding")
+    @Operation(summary = "班级绑定学生列表")
+    public CommonResult<Boolean> getClassPage(@RequestBody ClassStudentSaveReqVO reqVO) {
+        classService.createClassStudent(reqVO);
+        return success(true);
+    }
+
+    @GetMapping("/export-excel")
+    @Operation(summary = "导出学生班级 Excel")
+    @PreAuthorize("@ss.hasPermission('exam:class:export')")
+    @ApiAccessLog(operateType = EXPORT)
+    public void exportClassExcel(@Valid ClassPageReqVO pageReqVO,
+              HttpServletResponse response) throws IOException {
+        pageReqVO.setPageSize(PageParam.PAGE_SIZE_NONE);
+        List<ClassDO> list = classService.getClassPage(pageReqVO).getList();
+        // 导出 Excel
+        ExcelUtils.write(response, "学生班级.xls", "数据", ClassRespVO.class,
+                        BeanUtils.toBean(list, ClassRespVO.class));
+    }
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassDoReturnVO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassDoReturnVO.java
new file mode 100644
index 00000000..25a16c7f
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassDoReturnVO.java
@@ -0,0 +1,14 @@
+package pc.exam.pp.module.exam.controller.admin.classs.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.ToString;
+
+@Schema(description = "管理后台 - 学生班级分页 Request VO")
+@Data
+@ToString(callSuper = true)
+public class ClassDoReturnVO {
+    private Long id;
+
+    private String name;
+}
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassNameReturnVO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassNameReturnVO.java
new file mode 100644
index 00000000..a88edc65
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassNameReturnVO.java
@@ -0,0 +1,13 @@
+package pc.exam.pp.module.exam.controller.admin.classs.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+
+@Schema(description = "管理后台 - 学生班级分页 Request VO")
+@Data
+@ToString(callSuper = true)
+public class ClassNameReturnVO {
+    private String className;
+}
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassPageReqVO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassPageReqVO.java
new file mode 100644
index 00000000..878f153a
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassPageReqVO.java
@@ -0,0 +1,24 @@
+package pc.exam.pp.module.exam.controller.admin.classs.vo;
+
+import lombok.*;
+import java.util.*;
+import io.swagger.v3.oas.annotations.media.Schema;
+import pc.exam.pp.framework.common.pojo.PageParam;
+import org.springframework.format.annotation.DateTimeFormat;
+import java.time.LocalDateTime;
+
+import static pc.exam.pp.framework.common.util.date.DateUtils.FORMAT_YEAR_MONTH_DAY_HOUR_MINUTE_SECOND;
+
+@Schema(description = "管理后台 - 学生班级分页 Request VO")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+public class ClassPageReqVO extends PageParam {
+
+    @Schema(description = "名字", example = "芋艿")
+    private String name;
+
+    @Schema(description = "状态", example = "1")
+    private Integer status;
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassRespVO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassRespVO.java
new file mode 100644
index 00000000..e5f45df9
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassRespVO.java
@@ -0,0 +1,35 @@
+package pc.exam.pp.module.exam.controller.admin.classs.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.*;
+import java.util.*;
+import org.springframework.format.annotation.DateTimeFormat;
+import java.time.LocalDateTime;
+import com.alibaba.excel.annotation.*;
+
+@Schema(description = "管理后台 - 学生班级 Response VO")
+@Data
+@ExcelIgnoreUnannotated
+public class ClassRespVO {
+
+    @Schema(description = "班级编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "26824")
+    @ExcelProperty("班级编号")
+    private Long id;
+
+    @Schema(description = "名字", example = "芋艿")
+    @ExcelProperty("名字")
+    private String name;
+
+    @Schema(description = "状态", example = "1")
+    @ExcelProperty("状态")
+    private Integer status;
+
+    @Schema(description = "备注", example = "你说的对")
+    @ExcelProperty("备注")
+    private String remark;
+
+    @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED)
+    @ExcelProperty("创建时间")
+    private LocalDateTime createTime;
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassSaveReqVO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassSaveReqVO.java
new file mode 100644
index 00000000..7e5f68b5
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassSaveReqVO.java
@@ -0,0 +1,24 @@
+package pc.exam.pp.module.exam.controller.admin.classs.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.*;
+import java.util.*;
+import jakarta.validation.constraints.*;
+
+@Schema(description = "管理后台 - 学生班级新增/修改 Request VO")
+@Data
+public class ClassSaveReqVO {
+
+    @Schema(description = "班级编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "26824")
+    private Long id;
+
+    @Schema(description = "名字", example = "芋艿")
+    private String name;
+
+    @Schema(description = "状态", example = "1")
+    private Integer status;
+
+    @Schema(description = "备注", example = "你说的对")
+    private String remark;
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassStudentSaveReqVO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassStudentSaveReqVO.java
new file mode 100644
index 00000000..affef006
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/controller/admin/classs/vo/ClassStudentSaveReqVO.java
@@ -0,0 +1,16 @@
+package pc.exam.pp.module.exam.controller.admin.classs.vo;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import pc.exam.pp.module.exam.dal.dataobject.student.StudentClassDO;
+
+import java.util.List;
+
+@Schema(description = "管理后台 - 学生班级绑定新增/修改 Request VO")
+@Data
+public class ClassStudentSaveReqVO {
+
+    @Schema(description = "学生表")
+    private List<StudentClassDO> studentClassDOS;
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/dataobject/classs/ClassDO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/dataobject/classs/ClassDO.java
new file mode 100644
index 00000000..d08a905a
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/dataobject/classs/ClassDO.java
@@ -0,0 +1,43 @@
+package pc.exam.pp.module.exam.dal.dataobject.classs;
+
+import lombok.*;
+import java.util.*;
+import java.time.LocalDateTime;
+import java.time.LocalDateTime;
+import com.baomidou.mybatisplus.annotation.*;
+import pc.exam.pp.framework.mybatis.core.dataobject.BaseDO;
+
+/**
+ * 学生班级 DO
+ *
+ * @author rwb
+ */
+@TableName("exam_class")
+@KeySequence("exam_class_seq") // 用于 Oracle、PostgreSQL、Kingbase、DB2、H2 数据库的主键自增。如果是 MySQL 等数据库，可不写。
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class ClassDO extends BaseDO {
+
+    /**
+     * 班级编号
+     */
+    @TableId
+    private Long id;
+    /**
+     * 名字
+     */
+    private String name;
+    /**
+     * 状态
+     */
+    private Integer status;
+    /**
+     * 备注
+     */
+    private String remark;
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/dataobject/classs/ClassTeacherDO.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/dataobject/classs/ClassTeacherDO.java
new file mode 100644
index 00000000..ac1fa596
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/dataobject/classs/ClassTeacherDO.java
@@ -0,0 +1,35 @@
+package pc.exam.pp.module.exam.dal.dataobject.classs;
+
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.*;
+import pc.exam.pp.framework.mybatis.core.dataobject.BaseDO;
+import pc.exam.pp.framework.tenant.core.db.TenantBaseDO;
+
+/**
+ * 班级老师 DO
+ *
+ * @author rwb
+ */
+@TableName("exam_class_teacher")
+@Data
+@ToString(callSuper = true)
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class ClassTeacherDO extends TenantBaseDO {
+
+    /**
+     * Id
+     */
+    @TableId
+    private Long id;
+    /**
+     * 班级编号
+     */
+    private Long classId;
+    /**
+     * 老师编号
+     */
+    private Long teacherId;
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/mysql/classs/ClassMapper.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/mysql/classs/ClassMapper.java
new file mode 100644
index 00000000..43a1b0bc
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/mysql/classs/ClassMapper.java
@@ -0,0 +1,34 @@
+package pc.exam.pp.module.exam.dal.mysql.classs;
+
+import java.util.*;
+
+import org.apache.ibatis.annotations.Param;
+import pc.exam.pp.framework.common.pojo.PageResult;
+import pc.exam.pp.framework.mybatis.core.query.LambdaQueryWrapperX;
+import pc.exam.pp.framework.mybatis.core.mapper.BaseMapperX;
+import pc.exam.pp.module.exam.dal.dataobject.classs.ClassDO;
+import org.apache.ibatis.annotations.Mapper;
+import pc.exam.pp.module.exam.controller.admin.classs.vo.*;
+
+/**
+ * 学生班级 Mapper
+ *
+ * @author rwb
+ */
+@Mapper
+public interface ClassMapper extends BaseMapperX<ClassDO> {
+
+    default PageResult<ClassDO> selectPage(ClassPageReqVO reqVO) {
+        return selectPage(reqVO, new LambdaQueryWrapperX<ClassDO>()
+                .likeIfPresent(ClassDO::getName, reqVO.getName())
+                .eqIfPresent(ClassDO::getStatus, reqVO.getStatus())
+                .orderByDesc(ClassDO::getId));
+    }
+
+    List<ClassNameReturnVO> getClassName();
+
+    List<ClassDoReturnVO> getClassIdName();
+
+    ClassDO getClassNameOne(@Param("className") String className);
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/mysql/classs/ClassTeacherMapper.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/mysql/classs/ClassTeacherMapper.java
new file mode 100644
index 00000000..e3d269f6
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/dal/mysql/classs/ClassTeacherMapper.java
@@ -0,0 +1,10 @@
+package pc.exam.pp.module.exam.dal.mysql.classs;
+
+
+import org.apache.ibatis.annotations.Mapper;
+import pc.exam.pp.framework.mybatis.core.mapper.BaseMapperX;
+import pc.exam.pp.module.exam.dal.dataobject.classs.ClassTeacherDO;
+
+@Mapper
+public interface ClassTeacherMapper extends BaseMapperX<ClassTeacherDO> {
+}
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/service/classs/ClassService.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/service/classs/ClassService.java
new file mode 100644
index 00000000..203a1f39
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/service/classs/ClassService.java
@@ -0,0 +1,102 @@
+package pc.exam.pp.module.exam.service.classs;
+
+import java.util.*;
+import jakarta.validation.*;
+import pc.exam.pp.framework.common.util.collection.CollectionUtils;
+import pc.exam.pp.module.exam.controller.admin.classs.vo.*;
+import pc.exam.pp.module.exam.dal.dataobject.classs.ClassDO;
+import pc.exam.pp.framework.common.pojo.PageResult;
+import pc.exam.pp.framework.common.pojo.PageParam;
+
+/**
+ * 学生班级 Service 接口
+ *
+ * @author rwb
+ */
+public interface ClassService {
+
+    /**
+     * 创建学生班级
+     *
+     * @param createReqVO 创建信息
+     * @return 编号
+     */
+    Long createClass(@Valid ClassSaveReqVO createReqVO);
+
+    /**
+     * 创建学生班级绑定关系
+     *
+     * @param reqVO 创建信息
+     */
+    void createClassStudent(ClassStudentSaveReqVO reqVO);
+
+    /**
+     * 解除学生班级绑定关系
+     *
+     * @param reqVO 解除信息
+     */
+    void deleteClassStudent(ClassStudentSaveReqVO reqVO);
+
+    /**
+     * 更新学生班级
+     *
+     * @param updateReqVO 更新信息
+     */
+    void updateClass(@Valid ClassSaveReqVO updateReqVO);
+
+    /**
+     * 删除学生班级
+     *
+     * @param id 编号
+     */
+    void deleteClass(Long id);
+
+    /**
+     * 获得学生班级
+     *
+     * @param id 编号
+     * @return 学生班级
+     */
+    ClassDO getClass(Long id);
+
+    /**
+     * 获得班级名称
+     *
+     * @return 班级名称
+     */
+    List<ClassNameReturnVO> getClassName();
+
+    /**
+     * 获得班级名称和ID
+     *
+     * @return 班级名称和ID
+     */
+    List<ClassDoReturnVO> getClassIdName();
+
+    /**
+     * 获得学生班级分页
+     *
+     * @param pageReqVO 分页查询
+     * @return 学生班级分页
+     */
+    PageResult<ClassDO> getClassPage(ClassPageReqVO pageReqVO);
+
+    /**
+     * 获得指定编号的班级 Map
+     *
+     * @param ids 班级编号数组
+     * @return 班级 Map
+     */
+    default Map<Long, ClassDO> getClassMap(Collection<Long> ids) {
+        List<ClassDO> list = getClassList(ids);
+        return CollectionUtils.convertMap(list, ClassDO::getId);
+    }
+
+    /**
+     * 获得班级信息数组
+     *
+     * @param ids 班级编号数组
+     * @return 班级信息数组
+     */
+    List<ClassDO> getClassList(Collection<Long> ids);
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/service/classs/ClassServiceImpl.java b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/service/classs/ClassServiceImpl.java
new file mode 100644
index 00000000..d180f879
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/java/pc/exam/pp/module/exam/service/classs/ClassServiceImpl.java
@@ -0,0 +1,119 @@
+package pc.exam.pp.module.exam.service.classs;
+
+import cn.hutool.core.collection.CollUtil;
+import org.springframework.stereotype.Service;
+import jakarta.annotation.Resource;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.*;
+
+import pc.exam.pp.framework.common.enums.CommonStatusEnum;
+import pc.exam.pp.module.exam.controller.admin.classs.vo.*;
+import pc.exam.pp.module.exam.dal.dataobject.classs.ClassDO;
+import pc.exam.pp.framework.common.pojo.PageResult;
+import pc.exam.pp.framework.common.pojo.PageParam;
+import pc.exam.pp.framework.common.util.object.BeanUtils;
+
+import pc.exam.pp.module.exam.dal.dataobject.student.StudentClassDO;
+import pc.exam.pp.module.exam.dal.dataobject.student.StudentDO;
+import pc.exam.pp.module.exam.dal.mysql.classs.ClassMapper;
+import pc.exam.pp.module.exam.dal.mysql.student.StudentClassMapper;
+
+import static pc.exam.pp.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static pc.exam.pp.module.system.enums.ErrorCodeConstants.CLASS_NOT_EXISTS;
+
+/**
+ * 学生班级 Service 实现类
+ *
+ * @author rwb
+ */
+@Service
+@Validated
+public class ClassServiceImpl implements ClassService {
+
+    @Resource
+    private ClassMapper classMapper;
+    @Resource
+    private StudentClassMapper studentClassMapper;
+
+    @Override
+    public Long createClass(ClassSaveReqVO createReqVO) {
+        // 插入
+        createReqVO.setStatus(CommonStatusEnum.ENABLE.getStatus()); // 默认开启
+        ClassDO classs = BeanUtils.toBean(createReqVO, ClassDO.class);
+        classMapper.insert(classs);
+        // 返回
+        return classs.getId();
+    }
+
+    @Override
+    public void createClassStudent(ClassStudentSaveReqVO reqVO) {
+        // 循环插入或者更新数据
+        for (StudentClassDO studentClassDO : reqVO.getStudentClassDOS()){
+            studentClassMapper.insert(studentClassDO);
+        }
+    }
+
+    @Override
+    public void deleteClassStudent(ClassStudentSaveReqVO reqVO) {
+        // 循环插入或者更新数据
+//        for (Long longs : reqVO.getStudentClassDOS()){
+//            StudentClassDO studentClassDO = new StudentClassDO();
+//            studentClassDO.setStudentId(longs);
+//            studentClassMapper.deleteById(studentClassDO);
+//        }
+    }
+
+    @Override
+    public void updateClass(ClassSaveReqVO updateReqVO) {
+        // 校验存在
+        validateClassExists(updateReqVO.getId());
+        // 更新
+        ClassDO updateObj = BeanUtils.toBean(updateReqVO, ClassDO.class);
+        classMapper.updateById(updateObj);
+    }
+
+    @Override
+    public void deleteClass(Long id) {
+        // 校验存在
+        validateClassExists(id);
+        // 删除
+        classMapper.deleteById(id);
+    }
+
+    private void validateClassExists(Long id) {
+        if (classMapper.selectById(id) == null) {
+            throw exception(CLASS_NOT_EXISTS);
+        }
+    }
+
+    @Override
+    public ClassDO getClass(Long id) {
+        return classMapper.selectById(id);
+    }
+
+    @Override
+    public List<ClassNameReturnVO> getClassName() {
+        return classMapper.getClassName();
+    }
+
+    @Override
+    public List<ClassDoReturnVO> getClassIdName() {
+        return classMapper.getClassIdName();
+    }
+
+    @Override
+    public PageResult<ClassDO> getClassPage(ClassPageReqVO pageReqVO) {
+        return classMapper.selectPage(pageReqVO);
+    }
+
+    @Override
+    public List<ClassDO> getClassList(Collection<Long> ids) {
+        if (CollUtil.isEmpty(ids)) {
+            return Collections.emptyList();
+        }
+        return classMapper.selectBatchIds(ids);
+    }
+
+}
\ No newline at end of file
diff --git a/exam-module-exam/exam-module-exam-biz/src/main/resources/mapper/classs/ClassMapper.xml b/exam-module-exam/exam-module-exam-biz/src/main/resources/mapper/classs/ClassMapper.xml
new file mode 100644
index 00000000..ee50669d
--- /dev/null
+++ b/exam-module-exam/exam-module-exam-biz/src/main/resources/mapper/classs/ClassMapper.xml
@@ -0,0 +1,23 @@
+<?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="pc.exam.pp.module.exam.dal.mysql.classs.ClassMapper">
+
+    <!--
+        一般情况下，尽可能使用 Mapper 进行 CRUD 增删改查即可。
+        无法满足的场景，例如说多表关联查询，才使用 XML 编写 SQL。
+        代码生成器暂时只生成 Mapper XML 文件本身，更多推荐 MybatisX 快速开发插件来生成查询。
+        文档可见：https://www.iocoder.cn/MyBatis/x-plugins/
+     -->
+    <select id="getClassName" resultType="pc.exam.pp.module.exam.controller.admin.classs.vo.ClassNameReturnVO">
+        select name as className from exam_class
+    </select>
+
+    <select id="getClassIdName" resultType="pc.exam.pp.module.exam.controller.admin.classs.vo.ClassDoReturnVO">
+        select id, name from exam_class
+    </select>
+
+    <select id="getClassNameOne" resultType="pc.exam.pp.module.exam.dal.dataobject.classs.ClassDO">
+        select *  from exam_class where name = #{className}
+    </select>
+
+</mapper>
\ No newline at end of file