feat:

1.【FCJDFDXTXS-120】导出学习记录学习完成时间为空时，学习结束时间应为学生最后一次学习时间
2.【FCJDFDXTXS-115、138、140】修改课程名称的展示逻辑，修改为章名称+节名称，详细逻辑如下：默认取sectionName-contentName，如果sectionName不存在，就用courseName-contentName

servers/boe-server-all/src/main/java/com/xboe/module/course/entity/CourseContent.java

@@ -1,16 +1,15 @@
 package com.xboe.module.course.entity;
 
+import com.xboe.core.SysConstant;
+import com.xboe.core.orm.BaseEntity;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.Table;
 import javax.persistence.Transient;
 
-import com.xboe.core.SysConstant;
-import com.xboe.core.orm.BaseEntity;
-
-import lombok.Data;
-import lombok.EqualsAndHashCode;
-
 /**
  * 课程内容表
  * */
@@ -93,6 +92,13 @@ public class CourseContent extends BaseEntity {
     /**用于学习时的状态显示，非存储字段*/
     @Transient
     private Integer status;
+
+    /**
+     * 展示名称（章名+节名，如果没有章节，则为课程名+节名）
+     * 25.12.15新增
+     */
+    @Transient
+    private String displayName;
     
     public CourseContent() {
     	

servers/boe-server-all/src/main/java/com/xboe/module/course/service/ICourseContentService.java

@@ -56,6 +56,14 @@ public interface ICourseContentService{
 	 */
 	List<CourseContent> getByCourseId(String courseId);
 
+	/**
+	 * 根据id集合得到内容
+	 *
+	 * @param ids id集合
+	 * @return 课程内容集合
+	 */
+	List<CourseContent> getByIds(List<String> ids);
+
 	/**
 	 * 根据课程id、章节id得到课程所有目录（即章节，分页），顺序按orderIndex 从小到大的顺序
 	 * 25.11.26新增

servers/boe-server-all/src/main/java/com/xboe/module/course/service/ICourseSectionService.java

@@ -1,9 +1,9 @@
 package com.xboe.module.course.service;
 
-import java.util.List;
-
 import com.xboe.module.course.entity.CourseSection;
 
+import java.util.List;
+
 /**
  * 课程章节目录
  * */
@@ -27,4 +27,13 @@ public interface ICourseSectionService {
      */
     List<CourseSection> getByCourseId(String courseId);
 
+    /**
+     * 根据id批量查询课程章节目录
+     *
+     * @param ids id集合
+     * @return 课程章节目录集合
+     */
+    List<CourseSection> getByIds(List<String> ids);
+
+
 }

servers/boe-server-all/src/main/java/com/xboe/module/course/service/impl/CourseContentServiceImpl.java

@@ -142,6 +142,14 @@ public class CourseContentServiceImpl implements ICourseContentService {
 		return list;
 	}
 
+	@Override
+	public List<CourseContent> getByIds(List<String> ids) {
+		if (ids == null || ids.isEmpty()) {
+			return new ArrayList<>();
+		}
+		return ccDao.findList(OrderCondition.asc("sortIndex"), FieldFilters.in("id", ids), FieldFilters.eq("deleted", false));
+	}
+
 	/**
 	 * 根据课程id、章节id得到课程所有目录（即章节，分页），顺序按orderIndex 从小到大的顺序
 	 * 25.11.26新增

servers/boe-server-all/src/main/java/com/xboe/module/course/service/impl/CourseSectionServiceImpl.java

@@ -1,17 +1,16 @@
 package com.xboe.module.course.service.impl;
 
-import java.util.List;
-
-import javax.annotation.Resource;
-import javax.transaction.Transactional;
-
-import org.springframework.stereotype.Service;
-
 import com.xboe.common.OrderCondition;
 import com.xboe.core.orm.FieldFilters;
 import com.xboe.module.course.dao.CourseSectionDao;
 import com.xboe.module.course.entity.CourseSection;
 import com.xboe.module.course.service.ICourseSectionService;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import javax.transaction.Transactional;
+import java.util.ArrayList;
+import java.util.List;
 
 @Service
 @Transactional
@@ -35,6 +34,20 @@ public class CourseSectionServiceImpl implements ICourseSectionService {
 		return courseSectionDao.findList(OrderCondition.asc("orderIndex"), FieldFilters.eq("courseId", courseId));
 	}
 
+	/**
+	 * 根据id批量查询课程章节目录
+	 *
+	 * @param ids id集合
+	 * @return 课程章节目录集合
+	 */
+	@Override
+	public List<CourseSection> getByIds(List<String> ids) {
+		if (ids == null || ids.isEmpty()) {
+			return new ArrayList<>();
+		}
+		return courseSectionDao.findList(OrderCondition.asc("orderIndex"), FieldFilters.in("id", ids));
+	}
+
 //	@Override
 //	public void copyCourseSection(String id) {
 //		String sql="insert into boe_course_section(course_id,description,name," +

servers/boe-server-all/src/main/java/com/xboe/school/study/api/StudyCourseApi.java

@@ -452,7 +452,8 @@ public class StudyCourseApi extends ApiBaseController{
 				// 这个开始时间已经弃置了，不过先用再说（有值）
 				map.put("学习开始时间", studyCourse1.getStartTime());
 				// 结束时间为空的，说明还没学习结束（有值）
-				map.put("学习结束时间", studyCourse1.getFinishTime());
+				// 25.12.15修改，需求调整：如果结束时间为空，改为获取最后一次学习时间
+				map.put("学习结束时间", studyCourse1.getFinishTime() == null ? studyCourse1.getLastTime() : studyCourse1.getFinishTime());
                 // 学习时长（保留两位小数）：
                 map.put("学习时长", studyCourse1.getTotalDuration() == null ? null : String.format("%.2f", studyCourse1.getTotalDuration() / 60.0));
 				// 学习状态需要转换
@@ -1356,11 +1357,14 @@ public class StudyCourseApi extends ApiBaseController{
 				courseName = studyCourses.get(0).getCourseName();
 				// 查询资源名称
 				List<CourseContent> courseContents = contentService.getByCourseId(courseId);
-				String contentName = "";
+				String displayName = "";
 				if (courseContents != null && !courseContents.isEmpty()) {
+					// 25.12.15新增，修改课程名称的展示逻辑，修改为章名称+节名称
+					// 详细逻辑如下：默认取sectionName-contentName，如果sectionName不存在，就用courseName-contentName
+					studyService.setContentDisplayName(courseContents);
 					for (CourseContent cc : courseContents) {
 						if (contentId.equals(cc.getId())) {
-							contentName = cc.getContentName();
+							displayName = cc.getDisplayName();
 							break;
 						}
 					}
@@ -1398,7 +1402,7 @@ public class StudyCourseApi extends ApiBaseController{
 					}
 				}
 				// 将考试信息与用户信息拼接为map
-				String finalContentName = contentName;
+				String finalContentName = displayName;
 				List<Map<String, Object>> dataList = studyExams.stream().map(exam -> {
 					Map<String, Object> map = new HashMap<>();
 					// 拼接基本信息
@@ -1494,11 +1498,14 @@ public class StudyCourseApi extends ApiBaseController{
 			}
 			// 查询资源名称
 			List<CourseContent> courseContents = contentService.getByCourseId(courseId);
-			String contentName = "";
+			String displayName = "";
 			if (courseContents != null && !courseContents.isEmpty()) {
 				for (CourseContent cc : courseContents) {
+					// 25.12.15新增，修改课程名称的展示逻辑，修改为章名称+节名称
+					// 详细逻辑如下：默认取sectionName-contentName，如果sectionName不存在，就用courseName-contentName
+					studyService.setContentDisplayName(courseContents);
 					if (contentId.equals(cc.getId())) {
-						contentName = cc.getContentName();
+						displayName = cc.getDisplayName();
 						break;
 					}
 				}
@@ -1536,7 +1543,7 @@ public class StudyCourseApi extends ApiBaseController{
 				}
 			}
 			// 3.将作业信息与用户信息拼接为map
-			String finalContentName = contentName;
+			String finalContentName = displayName;
 			List<Map<String, Object>> dataList = studyHomeWorks.stream().map(hw -> {
 				Map<String, Object> map = new HashMap<>();
 				// 拼接基本信息

servers/boe-server-all/src/main/java/com/xboe/school/study/entity/StudyCourseItem.java

@@ -137,6 +137,13 @@ public class StudyCourseItem extends IdEntity {
     @Transient
     private BigDecimal progressVideo;
 
+    /**
+     * 展示名称（章名+节名，如果没有章节，则为课程名+节名）
+     * 25.12.15新增
+     */
+    @Transient
+    private String displayName;
+
     /**
      * 考试记录集合
      * 仅在资源学习情况分页查询-考试信息接口使用

servers/boe-server-all/src/main/java/com/xboe/school/study/service/IStudyService.java

@@ -1,6 +1,7 @@
 package com.xboe.school.study.service;
 
 import com.xboe.common.PageList;
+import com.xboe.module.course.entity.CourseContent;
 import com.xboe.school.study.dto.StudyContentDto;
 import com.xboe.school.study.entity.StudyCourseItem;
 import com.xboe.school.study.entity.StudyTime;
@@ -101,6 +102,14 @@ public interface IStudyService {
 	 */
 	PageList<StudyCourseItem> findItemPage(int pageIndex, int pageSize, List<String> ids, String contentId, String courseId, String name, Integer status);
 
+	/**
+	 * 为courseContents列表设置展示名称（章名+节名 或 课程名+节名）
+	 * 25.12.15新增
+	 *
+	 * @param courseContents 课程内容集合
+	 */
+	void setContentDisplayName(List<CourseContent> courseContents);
+
     List<StudyCourseItem> getList(String courseId, String contentId, String name, Integer status);
 
 	void updateStudyCourseItemLastTime(String studyContentId, int lastStudyTime, LocalDateTime timestamp);

servers/boe-server-all/src/main/java/com/xboe/school/study/service/impl/StudyServiceImpl.java

@@ -8,12 +8,17 @@ import com.xboe.core.orm.QueryBuilder;
 import com.xboe.core.orm.UpdateBuilder;
 import com.xboe.module.course.entity.Course;
 import com.xboe.module.course.entity.CourseContent;
+import com.xboe.module.course.entity.CourseSection;
+import com.xboe.module.course.service.ICourseContentService;
+import com.xboe.module.course.service.ICourseSectionService;
 import com.xboe.school.study.dao.StudyCourseDao;
 import com.xboe.school.study.dao.StudyCourseItemDao;
 import com.xboe.school.study.dao.StudyTimeDao;
 import com.xboe.school.study.dto.StudyContentDto;
+import com.xboe.school.study.entity.StudyCourse;
 import com.xboe.school.study.entity.StudyCourseItem;
 import com.xboe.school.study.entity.StudyTime;
+import com.xboe.school.study.service.IStudyCourseService;
 import com.xboe.school.study.service.IStudyService;
 import com.xboe.standard.enums.BoedxContentType;
 import com.xboe.system.user.dao.UserDao;
@@ -27,10 +32,10 @@ import javax.transaction.Transactional;
 import java.time.Duration;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
 @Slf4j
 @Service
 public class StudyServiceImpl implements IStudyService{
@@ -46,6 +51,16 @@ public class StudyServiceImpl implements IStudyService{
 	
 	@Autowired
 	UserDao userDao;
+
+	@Autowired
+	IStudyCourseService studyCourseService;
+
+	@Autowired
+	ICourseContentService courseContentService;
+
+	@Autowired
+	ICourseSectionService courseSectionService;
+
 	@Autowired
 	StringRedisTemplate redisTemplate;
 
@@ -272,7 +287,7 @@ public class StudyServiceImpl implements IStudyService{
 			}
 		}
 		// 未传输status的情况，查询所有资源学习情况数据
-		String sql = "select a.id, a.course_id, a.course_name, a.aname, " + "IFNULL(b.finish_time, '0') as finish_time, IFNULL(b.progress, 0) as progress, IFNULL(b.status, 1) as status " + ",b.score,b.item_id,b.aid " + "from (select id, course_id, course_name, aname, 0, 1 from boe_study_course where course_id = '" + courseId + "'" + (StringUtils.isBlank(name) ? "" : "and aname like '%" + name + "%'") + ") a " + "inner join " + "(select bsc.id, bsc.course_id, bsc.course_name, bsc.aname, item.id as item_id,item.finish_time, item.progress, item.status,MAX(item.score) score,item.aid  " + "from boe_study_course bsc left join boe_study_course_item item on item.course_id = bsc.course_id and item.study_id = bsc.id " + "where bsc.course_id = '" + courseId + "'" +
+		String sql = "select a.id, a.course_id, a.course_name, a.aname, " + "IFNULL(b.finish_time, '0') as finish_time, IFNULL(b.progress, 0) as progress, IFNULL(b.status, 1) as status " + ",b.score,b.item_id,b.aid,b.content_id " + "from (select id, course_id, course_name, aname, 0, 1 from boe_study_course where course_id = '" + courseId + "'" + (StringUtils.isBlank(name) ? "" : "and aname like '%" + name + "%'") + ") a " + "inner join " + "(select bsc.id, bsc.course_id, bsc.course_name, bsc.aname, item.id as item_id,item.finish_time, item.progress, item.status,MAX(item.score) score,item.aid,item.content_id  " + "from boe_study_course bsc left join boe_study_course_item item on item.course_id = bsc.course_id and item.study_id = bsc.id " + "where bsc.course_id = '" + courseId + "'" +
 				(StringUtils.isBlank(contentId) ? "" : "and item.content_id = '" + contentId + "'") +
 				(StringUtils.isBlank(name) ? "" : "and item.aname like '%" + name +"%'") + " group by bsc.id) b " +
 				"on a.course_id = b.course_id and a.id = b.id " +
@@ -306,17 +321,102 @@ public class StudyServiceImpl implements IStudyService{
 				sc.setScore(Float.valueOf(objs[7].toString()));
 			}
 			// 25.12.5新增，补全aid查询
-			if (objs[8] != null) {
-				sc.setAid(String.valueOf(objs[8].toString()));
+			if (objs[9] != null) {
+				sc.setAid(String.valueOf(objs[9].toString()));
+			}
+			// 25.12.15新增，补全contentId查询
+			if (objs[10] != null) {
+				sc.setContentId(String.valueOf(objs[10].toString()));
 			}
 			item.add(sc);
 		}
+		// 25.12.15新增，修改课程名称的展示逻辑，修改为章名称+节名称
+		// 详细逻辑如下：默认取sectionName-contentName，如果sectionName不存在，就用courseName-contentName
+		List<String> contentIds = item.stream().map(StudyCourseItem::getContentId).filter(Objects::nonNull).distinct().collect(Collectors.toList());
+		if (!contentIds.isEmpty()) {
+			List<CourseContent> contentList = courseContentService.getByIds(contentIds);
+			if (contentList != null) {
+				setContentDisplayName(contentList);
+				// 根据contentId将展示名称映射到item
+				for (StudyCourseItem studyCourseItem : item) {
+					studyCourseItem.setDisplayName(contentList.stream().filter(content -> content.getId().equals(studyCourseItem.getContentId())).findFirst().map(CourseContent::getDisplayName).orElse(null));
+				}
+			}
+		}
+		// 查询当前
 		PageList<StudyCourseItem> pageList = new PageList<>(item);
 		pageList.setCount(totalCount);
 		pageList.setPageSize(pageSize);
 		pageList.setList(item);
 		return pageList;
-		
+	}
+
+	/**
+	 * 为 CourseContent 列表设置展示名称（章名+节名 或 课程名+节名）
+	 * 基于 25.12.15 的展示逻辑：优先使用 章名+节名，章不存在则退化为 课程名+节名
+	 *
+	 * @param courseContents 节内容列表（即“节”）
+	 */
+	@Override
+	public void setContentDisplayName(List<CourseContent> courseContents) {
+		if (courseContents == null || courseContents.isEmpty()) {
+			return;
+		}
+		// 1. 提取唯一 sectionId 和 courseId
+		Set<String> sectionIds = new HashSet<>();
+		Set<String> courseIds = new HashSet<>();
+		for (CourseContent content : courseContents) {
+			if (content.getCsectionId() != null) {
+				sectionIds.add(content.getCsectionId());
+			}
+			if (content.getCourseId() != null) {
+				courseIds.add(content.getCourseId());
+			}
+		}
+		// 2. 批量查询 CourseSection
+		Map<String, CourseSection> sectionMap = new HashMap<>();
+		if (!sectionIds.isEmpty()) {
+			List<CourseSection> sections = courseSectionService.getByIds(new ArrayList<>(sectionIds));
+			if (sections != null) {
+				sectionMap = sections.stream().collect(Collectors.toMap(CourseSection::getId, Function.identity(), (e1, e2) -> e1));
+			}
+		}
+		// 3. 批量查询 StudyCourse
+		Map<String, StudyCourse> courseMap = new HashMap<>();
+		if (!courseIds.isEmpty()) {
+			List<StudyCourse> courses = studyCourseService.findByIds(new ArrayList<>(courseIds));
+			if (courses != null) {
+				courseMap = courses.stream().collect(Collectors.toMap(StudyCourse::getId, Function.identity(), (e1, e2) -> e1));
+			}
+		}
+		// 4. 为每个 CourseContent 设置 displayName
+		for (CourseContent courseContent : courseContents) {
+			String sectionName = null;
+			String courseName = "空课程名称";
+			String contentName = (courseContent.getContentName() != null) ? courseContent.getContentName() : "空内容名称";
+			// 尝试获取章名
+			if (courseContent.getCsectionId() != null) {
+				CourseSection section = sectionMap.get(courseContent.getCsectionId());
+				if (section != null && section.getName() != null) {
+					sectionName = section.getName();
+				}
+			}
+			// 设置 displayName：优先章+节，否则课程+节
+			String displayName;
+			if (sectionName != null) {
+				displayName = sectionName + "-" + contentName;
+			} else {
+				// 获取课程名
+				if (courseContent.getCourseId() != null) {
+					StudyCourse course = courseMap.get(courseContent.getCourseId());
+					if (course != null && course.getCourseName() != null) {
+						courseName = course.getCourseName();
+					}
+				}
+				displayName = courseName + "-" + contentName;
+			}
+			courseContent.setDisplayName(displayName);
+		}
 	}
 
 	@Override