下载考生轨迹pdf

teachcloud-mark/src/main/java/com/qmth/teachcloud/mark/service/MarkTrackService.java

@@ -26,4 +26,6 @@ public interface MarkTrackService extends IService<MarkTrack> {
     List<MarkTrack> listByTaskId(Long taskId);
 
 	List<MarkTrack> findByStudentIdAndQuestionNumber(Long studentId, String questionNumber);
+
+    List<MarkTrack> listByStudentId(Long studentId);
 }

teachcloud-mark/src/main/java/com/qmth/teachcloud/mark/service/impl/MarkStudentServiceImpl.java

@@ -1,13 +1,19 @@
 package com.qmth.teachcloud.mark.service.impl;
 
-import java.io.ByteArrayOutputStream;
-import java.io.File;
+import java.awt.*;
+import java.awt.color.ColorSpace;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorConvertOp;
+import java.io.*;
+import java.math.BigDecimal;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.*;
+import java.util.List;
 import java.util.stream.Collectors;
 
 import javax.annotation.Resource;
+import javax.imageio.ImageIO;
 import javax.servlet.ServletOutputStream;
 import javax.servlet.http.HttpServletResponse;
 import javax.validation.constraints.NotNull;
@@ -29,6 +35,11 @@ import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.itextpdf.text.Document;
+import com.itextpdf.text.Image;
+import com.itextpdf.text.PageSize;
+import com.itextpdf.text.Rectangle;
+import com.itextpdf.text.pdf.PdfWriter;
 import com.qmth.boot.core.concurrent.service.ConcurrentService;
 import com.qmth.boot.core.exception.ParameterException;
 import com.qmth.boot.tools.excel.ExcelWriter;
@@ -141,6 +152,8 @@ public class MarkStudentServiceImpl extends ServiceImpl<MarkStudentMapper, MarkS
 
     @Resource
     private FileUploadService fileUploadService;
+    @Resource
+    private MarkTrackService markTrackService;
 
     @Override
     public List<String> listClassByExamIdAndCourseCode(Long examId, String paperNumber) {
@@ -1402,13 +1415,32 @@ public class MarkStudentServiceImpl extends ServiceImpl<MarkStudentMapper, MarkS
                             continue;
                         }
                         List<FilePathVo> vos = JSON.parseArray(s.getSheetPath(), FilePathVo.class);
+                        List<MarkTrack> trackList = markTrackService.listByStudentId(s.getId());
+                        Document document = new Document(new Rectangle(PageSize.A3.getHeight(),PageSize.A3.getWidth()));
+                        // 本地保存目录
+                        File tempFile = SystemConstant.getFileTempParentDirVar(SystemConstant.TEMP_PREFIX);
+                        File file =new File(tempFile.getPath()+File.separator + s.getStudentCode()+".pdf");
+                        PdfWriter pdfWriter = PdfWriter.getInstance(document,new FileOutputStream(file));
+                        document.open();
                         for (int i = 0; i < vos.size(); i++) {
                             FilePathVo vo = vos.get(i);
-                            File file =  fileUploadService.downloadFile( JSON.toJSONString(vo),vo.getPath());
-                            String format = FilenameUtils.getExtension(file.getName());
-                            writer.write(file, s.getStudentCode()+"-"+(i+1)+"."+format);
-                            file.delete();
+                            File sheet =  fileUploadService.downloadFile(JSON.toJSONString(vo),vo.getPath());
+                            File track = new File(tempFile.getPath()+File.separator + s.getStudentCode()+"-"+(i+1)+".jpg");
+                            int offsetIndex = i+1;
+                            List<MarkTrack> tracks = trackList.stream().filter(t->t.getOffsetIndex().equals(offsetIndex)).collect(Collectors.toList());
+                            this.createTrack(sheet,track,tracks);
+                            Image image = Image.getInstance(track.getPath());
+                            image.scaleAbsolute(PageSize.A3.getHeight()-100,PageSize.A3.getWidth()-100);
+                            if(i!=0){
+                                document.newPage();
+                            }
+                            document.add(image);
+                            sheet.delete();
+                            track.delete();
                         }
+                        document.close();
+                        pdfWriter.close();
+                        writer.write(file,s.getStudentCode()+".pdf");
                     }
                     writer.close();
                 }catch (Exception e){
@@ -1419,6 +1451,40 @@ public class MarkStudentServiceImpl extends ServiceImpl<MarkStudentMapper, MarkS
         }
     }
 
+    private void createTrack(File sheet, File track, List<MarkTrack> trackList)throws IOException {
+        {
+            FileOutputStream output = null;
+            try {
+                BufferedImage image = ImageIO.read(new FileInputStream(sheet));
+                image = new ColorConvertOp(ColorSpace.getInstance(ColorSpace.CS_sRGB), null).filter(image, null);
+                Graphics2D g = image.createGraphics();// 得到图形上下文
+                g.setColor(Color.red); // 设置画笔颜色
+                // 设置字体
+                g.setFont(new Font("微软雅黑", Font.LAYOUT_LEFT_TO_RIGHT, 30));
+                // 写入签名
+                if (trackList != null && !trackList.isEmpty()) {
+                    for (int i = 0; i < trackList.size(); i++) {
+                        MarkTrack t = trackList.get(i);
+                        BigDecimal left = new BigDecimal(t.getOffsetY());
+                        BigDecimal top = new BigDecimal(t.getOffsetX());
+                        g.drawString(t.getScore().toString(), left.intValue(), top.intValue());
+                    }
+                }
+                g.dispose();
+
+                output = new FileOutputStream(track);
+                ImageIO.write(image, "jpg", output);
+            } catch (Exception e) {
+                log.error(SystemConstant.LOG_ERROR, e);
+            } finally {
+                if (Objects.nonNull(output)) {
+                    output.flush();
+                    output.close();
+                }
+            }
+        }
+    }
+
     @Override
     public void sheetExport(Long examId, String coursePaperId, HttpServletResponse response) {
         List<MarkStudent> list = this.listByExamIdAndCoursePaperId(examId,coursePaperId);

teachcloud-mark/src/main/java/com/qmth/teachcloud/mark/service/impl/MarkTrackServiceImpl.java

@@ -68,4 +68,12 @@ public class MarkTrackServiceImpl extends ServiceImpl<MarkTrackMapper, MarkTrack
                 .orderByAsc(MarkTrack::getNumber);
         return this.list(queryWrapper);
 	}
+
+    @Override
+    public List<MarkTrack> listByStudentId(Long studentId) {
+        QueryWrapper<MarkTrack> queryWrapper = new QueryWrapper<>();
+        queryWrapper.lambda().eq(MarkTrack::getStudentId, studentId)
+                .orderByAsc(MarkTrack::getQuestionNumber);
+        return this.list(queryWrapper);
+    }
 }