优化教师信息查询

src/main/java/com/teaching/backend/model/vo/courses/TeacherInfVO.java

@@ -10,7 +10,7 @@ import lombok.Data;
 public class TeacherInfVO {
 
     /**
-     * 教师username
+     * 教师userId
      */
     @ApiModelProperty("教师userId")
     private Long userId;

src/main/java/com/teaching/backend/service/impl/umsAdmin/UmsUserServiceImpl.java

@@ -381,15 +381,13 @@ public class UmsUserServiceImpl extends ServiceImpl<UmsUserMapper, UmsUser> impl
     }
     @Override
     public List<TeacherInfVO> getTeacherInfList() {
-        List<UmsUser> umsUserTeachers = query().eq("role_id", TEACHER_ROLE).list();
+        List<UmsTeacher> umsTeachers = umsTeacherMapper.selectList(new LambdaQueryWrapper<>(UmsTeacher.class));
         TeacherInfVO teacherInfVO = null;
         List<TeacherInfVO> teacherInfList = new ArrayList<>();
-        for (UmsUser umsUserTeacher : umsUserTeachers) {
+        for (UmsTeacher umsTeacher : umsTeachers) {
             teacherInfVO = new TeacherInfVO();
-            String teacherName = umsTeacherMapper.selectOne(new LambdaQueryWrapper<>(UmsTeacher.class)
-                    .eq(UmsTeacher::getUserId, umsUserTeacher.getId())).getName();
-            teacherInfVO.setName(teacherName);
-            teacherInfVO.setUserId(umsUserTeacher.getId());
+            teacherInfVO.setName(umsTeacher.getName());
+            teacherInfVO.setUserId(umsTeacher.getUserId());
             teacherInfList.add(teacherInfVO);
         }
         return teacherInfList;