学员学籍异动申请新增报错

backend/roomroot-admin/src/main/java/com/roomroot/web/controller/jwgl/DownloadController.java

@@ -2,6 +2,8 @@ package com.roomroot.web.controller.jwgl;
 
 import com.roomroot.common.exception.ServiceException;
 import com.roomroot.common.utils.file.FileUtils;
+import com.roomroot.jwgl.service.TeachingMaterialService;
+import jakarta.annotation.Resource;
 import jakarta.servlet.http.HttpServletResponse;
 import org.apache.commons.io.IOUtils;
 import org.springframework.core.io.ClassPathResource;
@@ -23,6 +25,9 @@ public class DownloadController {
 
     private static final String TEMPLATE_DIR = "file/";
 
+    @Resource
+    private TeachingMaterialService teachingMaterialService;
+
     /**
      * 人才培养方案课程数据文件模板
      */
@@ -56,11 +61,11 @@ public class DownloadController {
     }
 
     /**
-     * 教材管理模板
+     * 教材管理模板（动态生成，与 /teachingMaterial/template 一致）
      */
     @GetMapping("/teaching-material")
-    public void downloadTeachingMaterial(HttpServletResponse response) throws IOException {
+    public void downloadTeachingMaterial(HttpServletResponse response) {
-        downloadTemplate(response, "教材管理.xls");
+        teachingMaterialService.downloadTemplate(response);
     }
 
     /**

backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/TeachingMaterialServiceImpl.java

@@ -2,6 +2,8 @@ package com.roomroot.jwgl.service.impl;
 
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.roomroot.common.exception.ServiceException;
+import com.roomroot.common.utils.file.FileUtils;
 import com.roomroot.jwgl.entity.JCXX;
 import com.roomroot.jwgl.mapper.TeachingMaterialMapper;
 import com.roomroot.jwgl.service.TeachingMaterialService;
@@ -11,19 +13,24 @@ import com.roomroot.jwgl.utils.DateUtils;
 import com.roomroot.jwgl.utils.UuidUtil;
 import jakarta.servlet.http.HttpServletResponse;
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
-import org.apache.poi.ss.usermodel.*;
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.CellStyle;
+import org.apache.poi.ss.usermodel.CellType;
+import org.apache.poi.ss.usermodel.DateUtil;
+import org.apache.poi.ss.usermodel.Font;
+import org.apache.poi.ss.usermodel.IndexedColors;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
-import org.springframework.core.io.ClassPathResource;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
 
 import jakarta.annotation.Resource;
 import java.io.InputStream;
-import java.io.OutputStream;
 import java.math.BigDecimal;
-import java.net.URLEncoder;
 import java.time.LocalDateTime;
-import java.time.format.DateTimeFormatter;
 import java.util.List;
 
 /**
@@ -43,7 +50,7 @@ public class TeachingMaterialServiceImpl implements TeachingMaterialService {
         jcxx.setCjsj(LocalDateTime.now());
         jcxx.setXgsj(LocalDateTime.now());
         String nextNum = getNextNumber();
-        nextNum = getNextZeroFillCode(nextNum,4);
+        nextNum = getNextZeroFillCode(nextNum, 4);
         jcxx.setBh(nextNum);
         teachingMaterialMapper.insert(jcxx);
     }
@@ -104,234 +111,205 @@ public class TeachingMaterialServiceImpl implements TeachingMaterialService {
     }
 
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public int importExcel(MultipartFile file) {
+        if (file == null || file.isEmpty()) {
+            throw new ServiceException("导入文件不能为空");
+        }
+        String filename = file.getOriginalFilename() == null ? "" : file.getOriginalFilename().toLowerCase();
         try (InputStream is = file.getInputStream();
-             Workbook workbook = file.getOriginalFilename().endsWith(".xlsx")
+             Workbook workbook = filename.endsWith(".xlsx") ? new XSSFWorkbook(is) : new HSSFWorkbook(is)) {
-                     ? new XSSFWorkbook(is) : new HSSFWorkbook(is)) {
 
-            // 获取教材信息sheet
             Sheet sheet = workbook.getSheet("教材信息");
             if (sheet == null) {
                 sheet = workbook.getSheetAt(0);
             }
             int count = 0;
-
-            // 在循环外获取起始编号
             String nextNum = getNextNumber();
 
-            // 从第二行开始读取数据（跳过表头）
             for (int i = 1; i <= sheet.getLastRowNum(); i++) {
                 Row row = sheet.getRow(i);
-                if (row == null) continue;
+                if (row == null) {
-
+                    continue;
-                //获取编号
+                }
-                // 跳过空行
+                String mc = nvl(getCellValue(row, 3));
-                String bh = getCellValue(row, 0);
+                if (mc.isEmpty()) {
-
+                    continue;
-                JCXX jcxx = getByBh(bh);
+                }
-                String flag = "0";
+                String bh = nvl(getCellValue(row, 0));
-                if(jcxx == null){
+                JCXX jcxx = bh.isEmpty() ? null : getByBh(bh);
+                boolean insert = jcxx == null;
+                if (insert) {
                     jcxx = new JCXX();
                     jcxx.setId(UuidUtil.getUUID());
                     jcxx.setDelFlag(0);
                     jcxx.setCjsj(LocalDateTime.now());
-                    // 生成编号（数字字符串）
+                    if (bh.isEmpty()) {
-                    jcxx.setBh(bh == null?String.valueOf(nextNum):bh);
+                        jcxx.setBh(getNextZeroFillCode(nextNum, 4));
-                    nextNum = getNextZeroFillCode(nextNum,4);
+                        nextNum = jcxx.getBh();
-                    flag = "1";
+                    } else {
+                        jcxx.setBh(bh);
+                    }
+                    jcxx.setSdsl(0);
+                    jcxx.setJcsl(0);
+                    jcxx.setKcsj(0);
                 }
                 jcxx.setXgsj(LocalDateTime.now());
-
+                jcxx.setJysdh(blankToNull(getCellValue(row, 1)));
-                // 教研室
+                jcxx.setJcdm(blankToNull(getCellValue(row, 2)));
-                jcxx.setJysdh(getCellValue(row, 1));
-
-                // 教材代码
-                jcxx.setJcdm(getCellValue(row, 2));
-
-                // 跳过空行
-                String mc = getCellValue(row, 3);
-                if (mc == null || mc.isEmpty()) continue;
-
-                // 名称
                 jcxx.setMc(mc);
-
+                jcxx.setIsbn(blankToNull(getCellValue(row, 4)));
-                // ISBN
+                jcxx.setCbs(blankToNull(getCellValue(row, 5)));
-                jcxx.setIsbn(getCellValue(row, 4));
+                jcxx.setBc(blankToNull(getCellValue(row, 6)));
-
+                jcxx.setKb(blankToNull(getCellValue(row, 7)));
-                // 出版社
+                jcxx.setZz(joinAuthors(getCellValue(row, 8), getCellValue(row, 9), getCellValue(row, 10)));
-                jcxx.setCbs(getCellValue(row, 5));
+                jcxx.setDj(parseDecimal(getCellValue(row, 11)));
-
+                jcxx.setJcfl(blankToNull(getCellValue(row, 12)));
-                // 版次
+                jcxx.setJclx(blankToNull(getCellValue(row, 13)));
-                jcxx.setBc(getCellValue(row, 6));
+                String jcbxlx = nvl(getCellValue(row, 14));
-
+                if (jcbxlx.isEmpty()) {
-                // 开本
+                    jcbxlx = nvl(getCellValue(row, 15));
-                jcxx.setKb(getCellValue(row, 7));
-
-                // 作者
-                //主编
-                String zb = getCellValue(row, 8) == null ? "" : getCellValue(row, 8);
-                //副主编
-                String fzb = getCellValue(row, 9) == null ? "" : getCellValue(row, 9);
-                //编者
-                String bz = getCellValue(row, 10)==null?"":getCellValue(row, 10);
-
-
-                jcxx.setZz(zb+" "+fzb+" "+bz);
-
-                // 定价
-                String djStr = getCellValue(row, 11);
-                if (djStr != null && !djStr.isEmpty()) {
-                    try {
-                        jcxx.setDj(new BigDecimal(djStr));
-                    } catch (NumberFormatException e) {
-                        jcxx.setDj(BigDecimal.ZERO);
-                    }
                 }
+                jcxx.setJcbxlx(blankToNull(jcbxlx));
+                jcxx.setJcmj(blankToNull(getCellValue(row, 16)));
+                jcxx.setBxdw(blankToNull(getCellValue(row, 17)));
+                String teacher = nvl(getCellValue(row, 18));
+                if (teacher.isEmpty()) {
+                    teacher = nvl(getCellValue(row, 28));
+                }
+                jcxx.setZrjyjlxff(blankToNull(teacher));
+                jcxx.setJczdlx(blankToNull(getCellValue(row, 19)));
+                jcxx.setJccc(blankToNull(getCellValue(row, 20)));
+                jcxx.setJcly(blankToNull(getCellValue(row, 21)));
+                jcxx.setCbfs(blankToNull(getCellValue(row, 22)));
+                jcxx.setJldw(blankToNull(getCellValue(row, 23)));
+                jcxx.setCbrq(DateUtils.parseAnyDate(nvl(getCellValue(row, 24))));
+                jcxx.setZblxrq(DateUtils.parseAnyDate(nvl(getCellValue(row, 25))));
+                jcxx.setXqk(blankToNull(getCellValue(row, 26)));
+                jcxx.setBfsddw(blankToNull(getCellValue(row, 27)));
+                jcxx.setXcy(parseBool(getCellValue(row, 29), false));
+                jcxx.setBz(blankToNull(getCellValue(row, 31)));
+                jcxx.setTy(parseBool(getCellValue(row, 32), false));
+                fillRequiredDefaults(jcxx);
 
-                // 教材分类
+                if (insert) {
-                jcxx.setJcfl(getCellValue(row, 12));
-
-                // 教材类型
-                jcxx.setJclx(getCellValue(row, 13));
-
-                // 教材编写类型
-                jcxx.setJcbxlx(getCellValue(row, 14));
-
-                //教材编写类型
-                jcxx.setJcbxlx(getCellValue(row, 15)==null?"":getCellValue(row, 15));
-                //教材密级
-                jcxx.setJcmj(getCellValue(row, 16)==null?"":getCellValue(row, 16));
-
-                //编写单位
-                jcxx.setBxdw(getCellValue(row, 17)==null?"":getCellValue(row, 17));
-
-                //责任教研室
-                jcxx.setZrjyjlxff(getCellValue(row, 18)==null?"":getCellValue(row, 18));
-                //教材重点类型
-                jcxx.setJczdlx(getCellValue(row, 19)==null?"":getCellValue(row, 19));
-                //教材层次
-                jcxx.setJccc(getCellValue(row, 20)==null?"":getCellValue(row, 20));
-                //教材来源
-                jcxx.setJcly(getCellValue(row, 21)==null?"":getCellValue(row, 21));
-                //出版方式
-                jcxx.setCbfs(getCellValue(row, 22)==null?"":getCellValue(row, 22));
-                //计量单位
-                jcxx.setJldw(getCellValue(row, 23)==null?"":getCellValue(row, 23));
-                //出版日期
-                String dateStr = getCellValue(row, 24)==null?"":getCellValue(row, 24);
-                LocalDateTime cbrq = DateUtils.parseAnyDate(dateStr);
-                jcxx.setCbrq(cbrq);
-                //自编教材立项日期
-                jcxx.setJcmj(getCellValue(row, 25)==null?"":getCellValue(row, 25));
-                //评选情况
-                jcxx.setJcmj(getCellValue(row, 26)==null?"":getCellValue(row, 26));
-                //颁发审定单位
-                jcxx.setJcmj(getCellValue(row, 27)==null?"":getCellValue(row, 27));
-                //责任教员及联系方式
-                jcxx.setJcmj(getCellValue(row, 28)==null?"":getCellValue(row, 28));
-                //需彩印
-                jcxx.setJcmj(getCellValue(row, 29)==null?"":getCellValue(row, 29));
-                //外协排版
-                jcxx.setJcmj(getCellValue(row, 30)==null?"":getCellValue(row, 30));
-                //备注
-                jcxx.setJcmj(getCellValue(row, 31)==null?"":getCellValue(row, 31));
-                //停用
-                jcxx.setTy(false);
-                jcxx.setXcy(false);
-
-                if("1".equals(flag)){
                     teachingMaterialMapper.insert(jcxx);
-                }else if("0".equals(flag)){
+                } else {
                     teachingMaterialMapper.updateById(jcxx);
                 }
                 count++;
             }
             return count;
+        } catch (ServiceException e) {
+            throw e;
         } catch (Exception e) {
-            throw new RuntimeException("Excel解析失败: " + e.getMessage(), e);
+            throw new ServiceException("Excel解析失败: " + e.getMessage());
         }
     }
 
-
     @Override
     public void downloadTemplate(HttpServletResponse response) {
-        try {
+        try (Workbook workbook = new XSSFWorkbook()) {
-            // 从resources/template目录读取模板文件
+            CellStyle headerStyle = workbook.createCellStyle();
-            ClassPathResource resource = new ClassPathResource("file/教材管理.xls");
+            Font headerFont = workbook.createFont();
-            InputStream is = resource.getInputStream();
+            headerFont.setBold(true);
+            headerStyle.setFont(headerFont);
+            CellStyle requiredStyle = workbook.createCellStyle();
+            Font requiredFont = workbook.createFont();
+            requiredFont.setBold(true);
+            requiredFont.setColor(IndexedColors.RED.getIndex());
+            requiredStyle.setFont(requiredFont);
 
-            // 设置响应头
+            String[] headers = {
-            response.setContentType("application/vnd.ms-excel");
+                    "编号", "教研室代号", "教材代码", "名称*", "ISBN", "出版社", "版次", "开本",
-            response.setHeader("Content-Disposition", "attachment;filename=" +
+                    "主编", "副主编", "编者", "定价", "教材分类", "教材类型", "教材编写类型",
-                    URLEncoder.encode("教材管理导入模板.xls", "UTF-8"));
+                    "教材编写类型(备用)", "教材密级", "编写单位", "责任教员及联系方式", "教材重点类型",
-
+                    "教材层次", "教材来源", "出版方式", "计量单位", "出版日期", "自编立项日期",
-            // 输出文件
+                    "评选情况", "颁发审定单位", "责任教员及联系方式(备用)", "需彩印", "外协排版(忽略)",
-            OutputStream os = response.getOutputStream();
+                    "备注", "停用"
-            byte[] buffer = new byte[1024];
+            };
-            int len;
+            Sheet sheet = workbook.createSheet("教材信息");
-            while ((len = is.read(buffer)) != -1) {
+            Row headerRow = sheet.createRow(0);
-                os.write(buffer, 0, len);
+            for (int i = 0; i < headers.length; i++) {
+                Cell cell = headerRow.createCell(i);
+                cell.setCellValue(headers[i]);
+                cell.setCellStyle(headers[i].contains("*") ? requiredStyle : headerStyle);
+                sheet.setColumnWidth(i, 16 * 256);
             }
-            os.flush();
+            String[][] samples = {
-            is.close();
+                    {
-            os.close();
+                            "", "", "JC-DEMO-001", "高等数学（测试）", "978-7-111-00001-1", "高等教育出版社",
+                            "第3版", "16开", "张三", "李四", "王五", "45.5", "基本教材", "院校自编", "自编",
+                            "", "公开", "数学教研室", "张三 13800000001", "一般教材", "本科", "自购",
+                            "公开出版", "本", "2024/08/01", "2023/12/01", "院级优秀", "教务处", "",
+                            "否", "", "导入测试样例1", "否"
+                    },
+                    {
+                            "", "", "JC-DEMO-002", "大学物理实验（测试）", "978-7-111-00002-8", "科学出版社",
+                            "第2版", "16开", "赵六", "", "", "32", "辅助教材", "国家规划", "选用",
+                            "", "内部", "物理教研室", "赵六 13800000002", "规划教材", "本科", "教研保障中心外购",
+                            "内部出版", "册", "2023/03/15", "", "", "", "",
+                            "是", "", "导入测试样例2", "否"
+                    },
+                    {
+                            "", "", "JC-DEMO-003", "研究生英语阅读（测试）", "978-7-111-00003-5", "外语教学与研究出版社",
+                            "第1版", "32开", "钱七", "孙八", "", "28.8", "参考资料", "军队规划", "选用",
+                            "", "公开", "外语教研室", "钱七 13800000003", "重点教材", "研究生", "上级配发",
+                            "公开出版", "本", "2025/01/10", "2024/06/01", "", "训练部", "",
+                            "否", "", "导入测试样例3", "否"
+                    }
+            };
+            for (int r = 0; r < samples.length; r++) {
+                Row dataRow = sheet.createRow(r + 1);
+                for (int c = 0; c < samples[r].length; c++) {
+                    dataRow.createCell(c).setCellValue(samples[r][c]);
+                }
+            }
+
+            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+            FileUtils.setAttachmentResponseHeader(response, "教材管理导入模板.xlsx");
+            workbook.write(response.getOutputStream());
+            response.getOutputStream().flush();
         } catch (Exception e) {
-            throw new RuntimeException("下载模板失败: " + e.getMessage(), e);
+            throw new ServiceException("下载模板失败: " + e.getMessage());
         }
     }
 
-    /**
-     * 获取下一个编号（四位补零）
-     */
     private String getNextNumber() {
         String maxBh = teachingMaterialMapper.selectMaxBh();
-        String nextNum = "0001";
         if (maxBh != null && !maxBh.isEmpty()) {
-            try {
+            return maxBh;
-                // 去掉前导零后解析
-                nextNum = maxBh;
-            } catch (NumberFormatException e) {
-                nextNum = "0001";
-            }
         }
-        return nextNum;
+        return "0000";
     }
 
-    /**
-     * 根据数据库最大补零编号，生成下一个编号
-     * @param maxZeroCode 数据库查出的最大补零编号，为空则从00001开始
-     * @param length 固定补零长度，例：5=00001
-     * @return 下一个补零字符串编号
-     */
     public static String getNextZeroFillCode(String maxZeroCode, int length) {
         int num = 1;
-        // 数据库有编号则解析+1
         if (maxZeroCode != null && maxZeroCode.trim().length() > 0) {
-            num = Integer.parseInt(maxZeroCode.trim()) + 1;
+            String digits = maxZeroCode.trim().replaceAll("\\D", "");
+            if (!digits.isEmpty()) {
+                try {
+                    num = Integer.parseInt(digits) + 1;
+                } catch (NumberFormatException ignored) {
+                    num = 1;
+                }
+            }
         }
-        // 格式化补零
         String format = "%0" + length + "d";
         return String.format(format, num);
     }
 
-    /**
-     * 获取单元格字符串值
-     */
     private String getCellValue(Row row, int index) {
         Cell cell = row.getCell(index, Row.MissingCellPolicy.CREATE_NULL_AS_BLANK);
         if (cell == null) {
             return null;
         }
-
         CellType type = cell.getCellType();
-        // 处理公式单元格
         if (type == CellType.FORMULA) {
             type = cell.getCachedFormulaResultType();
         }
-
         switch (type) {
             case NUMERIC:
-                // 判断是否是日期格式
                 if (DateUtil.isCellDateFormatted(cell)) {
                     java.util.Date date = cell.getDateCellValue();
                     if (date != null) {
@@ -341,12 +319,10 @@ public class TeachingMaterialServiceImpl implements TeachingMaterialService {
                     return null;
                 }
                 double num = cell.getNumericCellValue();
-                // 整数就去掉小数点后多余的 .0
                 if (num == Math.floor(num)) {
                     return String.valueOf((long) num);
-                } else {
-                    return String.valueOf(num);
                 }
+                return String.valueOf(num);
             case STRING:
                 return cell.getStringCellValue().trim();
             case BOOLEAN:
@@ -356,25 +332,119 @@ public class TeachingMaterialServiceImpl implements TeachingMaterialService {
         }
     }
 
-    /**
+    private String nvl(String value) {
-     * 解析日期时间字符串
+        return value == null ? "" : value.trim();
-     */
+    }
-    private LocalDateTime parseDateTime(String dateStr) {
+
-        // 尝试多种日期格式
+    private String blankToNull(String value) {
-        String[] patterns = {
+        String trimmed = nvl(value);
-                "yyyy-MM-dd HH:mm:ss",
+        return trimmed.isEmpty() ? null : trimmed;
-                "yyyy-MM-dd",
+    }
-                "yyyy/MM/dd",
+
-                "yyyy年MM月dd日"
+    private String joinAuthors(String zb, String fzb, String bz) {
-        };
+        StringBuilder builder = new StringBuilder();
-        for (String pattern : patterns) {
+        appendAuthor(builder, zb);
-            try {
+        appendAuthor(builder, fzb);
-                DateTimeFormatter formatter = DateTimeFormatter.ofPattern(pattern);
+        appendAuthor(builder, bz);
-                return LocalDateTime.parse(dateStr, formatter);
+        return builder.length() == 0 ? null : builder.toString();
-            } catch (Exception e) {
+    }
-                // 继续尝试下一个格式
+
-            }
+    private void appendAuthor(StringBuilder builder, String part) {
+        String value = nvl(part);
+        if (value.isEmpty()) {
+            return;
         }
-        return null;
+        if (builder.length() > 0) {
+            builder.append(' ');
+        }
+        builder.append(value);
+    }
+
+    private BigDecimal parseDecimal(String text) {
+        String value = nvl(text);
+        if (value.isEmpty()) {
+            return null;
+        }
+        try {
+            return new BigDecimal(value);
+        } catch (NumberFormatException e) {
+            return BigDecimal.ZERO;
+        }
+    }
+
+    private Boolean parseBool(String text, boolean defaultValue) {
+        String value = nvl(text);
+        if (value.isEmpty()) {
+            return defaultValue;
+        }
+        return "1".equals(value) || "是".equals(value) || "true".equalsIgnoreCase(value)
+                || "Y".equalsIgnoreCase(value);
+    }
+
+    /**
+     * 教材信息表多列为非空且达梦空串当 NULL。导入缺列时用页面选项的第一项兜底。
+     */
+    private void fillRequiredDefaults(JCXX jcxx) {
+        if (isBlank(jcxx.getJcbxlx())) {
+            jcxx.setJcbxlx("自编");
+        }
+        if (isBlank(jcxx.getZz())) {
+            jcxx.setZz("-");
+        }
+        if (jcxx.getCbrq() == null) {
+            jcxx.setCbrq(LocalDateTime.now());
+        }
+        if (isBlank(jcxx.getJcfl())) {
+            jcxx.setJcfl("基本教材");
+        }
+        if (isBlank(jcxx.getJclx())) {
+            jcxx.setJclx("院校自编");
+        }
+        if (isBlank(jcxx.getJczdlx())) {
+            jcxx.setJczdlx("一般教材");
+        }
+        if (isBlank(jcxx.getJcly())) {
+            jcxx.setJcly("自购");
+        }
+        if (isBlank(jcxx.getJccc())) {
+            jcxx.setJccc("无");
+        }
+        if (isBlank(jcxx.getCbfs())) {
+            jcxx.setCbfs("内部出版");
+        }
+        if (isBlank(jcxx.getKb())) {
+            jcxx.setKb("-");
+        }
+        if (jcxx.getDj() == null) {
+            jcxx.setDj(BigDecimal.ZERO);
+        }
+        if (isBlank(jcxx.getJldw())) {
+            jcxx.setJldw("本");
+        }
+        if (isBlank(jcxx.getJcmj())) {
+            jcxx.setJcmj("公开");
+        }
+        if (jcxx.getTy() == null) {
+            jcxx.setTy(false);
+        }
+        if (jcxx.getXcy() == null) {
+            jcxx.setXcy(false);
+        }
+        if (jcxx.getSdsl() == null) {
+            jcxx.setSdsl(0);
+        }
+        if (jcxx.getJcsl() == null) {
+            jcxx.setJcsl(0);
+        }
+        if (jcxx.getKcsj() == null) {
+            jcxx.setKcsj(0);
+        }
+        if (jcxx.getDelFlag() == null) {
+            jcxx.setDelFlag(0);
+        }
+    }
+
+    private boolean isBlank(String value) {
+        return value == null || value.trim().isEmpty();
     }
 }

frontend/src/api/textbook/teachingMaterial.js

@@ -61,10 +61,10 @@ export function deleteTeachingMaterial(id) {
   })
 }
 
-/** 教材导入模板下载 GET /download/teaching-material */
+/** 教材导入模板下载 GET /teachingMaterial/template */
 export function downloadTeachingMaterialTemplate() {
   return request({
-    url: '/download/teaching-material',
+    url: '/teachingMaterial/template',
     method: 'get',
     responseType: 'blob'
   })

frontend/src/views/student/statusChange/index.vue

@@ -590,7 +590,7 @@ export default {
       const pad = n => String(n).padStart(2, '0')
       const date = `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())}`
       const time = `${pad(d.getHours())}:${pad(d.getMinutes())}:${pad(d.getSeconds())}`
-      return `${date} ${time}`
+      return `${date}T${time}`
     },
 
     handleSubmit(row) {

frontend/src/views/textbook/index.vue

@@ -1125,7 +1125,11 @@ export default {
     // ==================== 模板下载 / 导入 ====================
     handleDownloadTemplate() {
       downloadTeachingMaterialTemplate().then(blob => {
-        saveAs(blob, '教材管理导入模板.xls')
+        if (blob && blob.type && blob.type.indexOf('json') !== -1) {
+          this.$message.error('模板下载失败')
+          return
+        }
+        saveAs(blob, '教材管理导入模板.xlsx')
         this.$message.success('模板下载成功')
       }).catch(() => {})
     },