fix: 学生/教师列表分页错位与班级院系total丢失；登录密码错误与账号不存在分开提示；AI助评评项名归一化修复误报502

src/main/java/com/sztzjy/linkCommerce/controller/stu/LoginController.java

@@ -27,6 +27,7 @@ import com.sztzjy.linkCommerce.util.TzApi;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import org.apache.commons.lang3.StringUtils;
+import org.springframework.security.authentication.BadCredentialsException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
@@ -94,6 +95,9 @@ public class LoginController {
                 }
                 Userinfo user = userinfos.get(0);
                 return new ResultEntity(HttpStatus.OK, buildLoginResultMap(user, token));
+            }catch (BadCredentialsException e){
+                // 账号存在但密码不正确；账号不存在时 loadUserByUsername 会抛下标越界，走下方兜底
+                return new ResultEntity(HttpStatus.BAD_REQUEST, "密码错误");
             }catch (Exception e){
                 return new ResultEntity(HttpStatus.BAD_REQUEST, "账号不存在");
             }

src/main/java/com/sztzjy/linkCommerce/controller/stu/UserController.java

@@ -635,7 +635,6 @@ public class UserController {
             }
             schoolId = operator.getSchoolId();
         }
-        PageHelper.startPage(index, size);
         UserinfoExample userInfoExample = new UserinfoExample();
         UserinfoExample.Criteria criteria = userInfoExample.createCriteria();
         School school = new School();
@@ -650,6 +649,8 @@ public class UserController {
             criteria.andUsernameEqualTo(userName);
         }
         criteria.andRoleEqualTo(3);
+        // startPage 只对紧随其后的第一条查询生效，必须放在学校等辅助查询之后，否则教师主查询不会分页
+        PageHelper.startPage(index, size);
         List<Userinfo> userInfoList = userinfoMapper.selectByExample(userInfoExample);
         for (int i = 0; i < userInfoList.size(); i++) {
             if (StringUtils.isNotBlank(schoolId)) {
@@ -993,7 +994,6 @@ public class UserController {
         if (teacherRosterScope) {
             schoolId = operator.getSchoolId();
         }
-        PageHelper.startPage(index, size);
         UserinfoExample userInfoExample = new UserinfoExample();
         UserinfoExample.Criteria criteria = userInfoExample.createCriteria();
         School school = new School();
@@ -1029,6 +1029,8 @@ public class UserController {
             }
         }
         criteria.andRoleEqualTo(4);
+        // startPage 只对紧随其后的第一条查询生效，必须放在学校/教学班/花名册等辅助查询之后，否则学生主查询不会分页
+        PageHelper.startPage(index, size);
         List<Userinfo> userInfoList = userinfoMapper.selectByExample(userInfoExample);
         for (int i = 0; i < userInfoList.size(); i++) {
             if (StringUtils.isNotBlank(schoolId)) {

src/main/java/com/sztzjy/linkCommerce/service/impl/AiTrainingEvaluationServiceImpl.java

@@ -361,7 +361,7 @@ public class AiTrainingEvaluationServiceImpl implements AiTrainingEvaluationServ
             requireText(criterion, "rationale");
             Integer max = wholeNumber(criterion.get("maxScore"));
             Integer earned = wholeNumber(criterion.get("score"));
-            if (!expected.name.equals(StringUtils.trimToEmpty(criterion.path("name").asText()))
+            if (!normalizeCriterionName(expected.name).equals(normalizeCriterionName(criterion.path("name").asText()))
                     || max == null || earned == null || max != expected.maxScore || earned < 0 || earned > max) {
                 throw invalidReport();
             }
@@ -492,6 +492,16 @@ public class AiTrainingEvaluationServiceImpl implements AiTrainingEvaluationServ
         return new ServiceException(HttpStatus.BAD_GATEWAY, "AI returned an invalid evaluation report");
     }
 
+    /**
+     * 评项名比对前的归一化：去掉模型从提示词的编号列表里照搬回来的枚举前缀
+     * （如 "1."、"2、"、"（3）"、"Step 1"、"第2步"）和所有空白。
+     * 没有编号+分隔符前缀的纯名字（如 "26电商2"）不会被误删。
+     */
+    private String normalizeCriterionName(String value) {
+        String name = StringUtils.trimToEmpty(value).replaceAll("\\s+", "");
+        return name.replaceFirst("^(?:(?i:step)\\d{0,3}[.::、)）-]*|[(（]?第\\d{1,3}步?[)）.、:：-]*|[(（]?\\d{1,3}[)）.、:：-]+)", "");
+    }
+
     private String helpSystemPrompt() {
         return "You are a training learning assistant. Return only JSON with overallDiagnosis, strengths, improvementAreas, and recommendedActions. Do not include a score.";
     }
@@ -514,7 +524,8 @@ public class AiTrainingEvaluationServiceImpl implements AiTrainingEvaluationServ
                 + "Determine each criterion score from its evidence first, then sum the scores. Do not choose a target total, default score or invent differences between students. "
                 + "Each rationale must identify the actual evidence or omission and explain the awarded points or deduction. "
                 + "There are exactly " + criterionPlan.size() + " training steps and their maximum scores sum to 100. "
-                + "Return exactly " + criterionPlan.size() + " criteria in this exact order. Each name and maxScore must exactly match this required step plan: "
+                + "Return exactly " + criterionPlan.size() + " criteria in this exact order. "
+                + "Each criterion's name must be copied verbatim from the quoted name in this required step plan, without adding any numbering or other characters; maxScore must exactly match: "
                 + criterionPlanPrompt(criterionPlan) + ". "
                 + "score, maxScore, and each criterion score must be JSON integer numbers (not strings). "
                 + "Write one complete concise Chinese sentence for each rationale and end it with Chinese punctuation. "
@@ -528,7 +539,7 @@ public class AiTrainingEvaluationServiceImpl implements AiTrainingEvaluationServ
         for (int index = 0; index < criterionPlan.size(); index++) {
             AssessmentCriterionPlan item = criterionPlan.get(index);
             if (index > 0) result.append(", ");
-            result.append(index + 1).append(". ").append(item.name).append(" (max ").append(item.maxScore).append(")");
+            result.append(index + 1).append(". \"").append(item.name).append("\" (max ").append(item.maxScore).append(")");
         }
         return result.append("]").toString();
     }

src/main/java/com/sztzjy/linkCommerce/service/impl/SchoolServiceImpl.java

@@ -74,6 +74,10 @@ public class SchoolServiceImpl implements SchoolService {
         }
         List<SchoolFaculty> schoolFaculties = schoolFacultyMapper.selectByExample(schoolFacultyExample);
 
+        // 基于分页查询结果读取真实总数/页数，映射出的 DTO 列表最后再替换进去；
+        // 直接包装 DTO 列表会把 total 错算成当页条数
+        PageInfo<SchoolFaculty> sourcePage = new PageInfo<>(schoolFaculties);
+
         // 将院系信息转换为 DTO
         List<SchoolFacultyDto> dtoList = schoolFaculties.stream()
                 .map(schoolFaculty -> {
@@ -86,8 +90,13 @@ public class SchoolServiceImpl implements SchoolService {
                 })
                 .collect(Collectors.toList());
 
-        // 创建 PageInfo 对象，将 DTO 列表封装成分页结果
-        return new PageInfo<>(dtoList);
+        PageInfo<SchoolFacultyDto> pageInfo = new PageInfo<>();
+        pageInfo.setTotal(sourcePage.getTotal());
+        pageInfo.setPageNum(sourcePage.getPageNum());
+        pageInfo.setPageSize(sourcePage.getPageSize());
+        pageInfo.setPages(sourcePage.getPages());
+        pageInfo.setList(dtoList);
+        return pageInfo;
     }
 
     @Override
@@ -131,6 +140,10 @@ public class SchoolServiceImpl implements SchoolService {
         }
         List<SchoolClass> schoolClasses = schoolClassMapper.selectByExample(schoolClassExample);
 
+        // 基于分页查询结果读取真实总数/页数，映射出的 DTO 列表最后再替换进去；
+        // 直接包装 DTO 列表会把 total 错算成当页条数
+        PageInfo<SchoolClass> sourcePage = new PageInfo<>(schoolClasses);
+
         // 将院系信息转换为 DTO
         String schoolName = schoolMapper.selectSchoolNameById(schoolId);
         List<String> schoolMajorIds = schoolClasses.stream()
@@ -201,8 +214,13 @@ public class SchoolServiceImpl implements SchoolService {
                 })
                 .collect(Collectors.toList());
 
-        // 创建 PageInfo 对象，将 DTO 列表封装成分页结果
-        return new PageInfo<>(dtoList);
+        PageInfo<SchoolClassDto> pageInfo = new PageInfo<>();
+        pageInfo.setTotal(sourcePage.getTotal());
+        pageInfo.setPageNum(sourcePage.getPageNum());
+        pageInfo.setPageSize(sourcePage.getPageSize());
+        pageInfo.setPages(sourcePage.getPages());
+        pageInfo.setList(dtoList);
+        return pageInfo;
     }
 
     @Override