生成pdf

ruoyi-admin/src/main/resources/template/COURSE_FEEDBACK.ftl

@@ -22,12 +22,16 @@
 			box-shadow: none;
 			line-height: 30px;
 			margin: 0px 10%;
-			height: auto !important;
+		}
-			padding: 0px 75px 100px 75px !important;
+		table{
+			height:700px
 		}
 		.sign {
 			margin-left: 70%;
 		}
+		.bigRow{
+			 height: 180px;
+		 }
 	</style>
 </head>
 
@@ -35,7 +39,7 @@
 	<div class="mybody">
 		<h1>课程反馈表</h1>
 		<div class="content_class">
-			<table border="1" width="500" cellspacing="0" cellpadding="0">
+			<table border="1" width="600" cellspacing="0" cellpadding="0">
 				<tr>
 					<td>专业 Program</td>
 					<td>${program!}</td>
@@ -53,22 +57,22 @@
 					<td>${endClassTime!}</td>
 				</tr>
 
-				<tr colspan="4">
+				<tr colspan="4" class="bigRow">
 					<td>作业完成情况 <br />
 						Feedback</td>
-					<td colspan="4">${feedback!}</td>
+					<td colspan="4"><b>评分 ${feedbackScore}</b><br/>${feedback!}</td>
 				</tr>
-				<tr colspan="4">
+				<tr colspan="4" class="bigRow">
 					<td>课堂表现 <br />
 						Performance</td>
-					<td colspan="4">${performance!}</td>
+					<td colspan="4"><b>评分 ${performanceScore}</b><br/>${performance!}</td>
 				</tr>
-				<tr colspan="4">
+				<tr colspan="4" class="bigRow">
 					<td>课堂内容 <br />
 						Content</td>
 					<td colspan="4">${content!}</td>
 				</tr>
-				<tr colspan="4">
+				<tr colspan="4" class="bigRow">
 					<td>课后作业 <br />
 						Work</td>
 					<td colspan="4">${work!}</td>

ruoyi-common/src/main/java/com/ruoyi/common/utils/PdfUtils.java

@@ -2,16 +2,19 @@ package com.ruoyi.common.utils;
 
 import cn.hutool.core.io.resource.ClassPathResource;
 import cn.hutool.core.io.resource.Resource;
-import com.itextpdf.text.pdf.BaseFont;
+import com.itextpdf.text.BaseColor;
+import com.itextpdf.text.DocumentException;
+import com.itextpdf.text.Element;
+import com.itextpdf.text.Image;
+import com.itextpdf.text.pdf.*;
 import freemarker.template.Configuration;
 import freemarker.template.Template;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
 import org.springframework.util.ResourceUtils;
 import org.xhtmlrenderer.pdf.ITextRenderer;
 
-import java.io.File;
+import java.io.*;
-import java.io.OutputStream;
-import java.io.StringWriter;
 import java.util.Locale;
 
 /**
@@ -19,6 +22,7 @@ import java.util.Locale;
  * @create 2023-05-21 10:38
  */
 @Slf4j
+@Component
 public class PdfUtils {
 
     private final static String TEMPLATE_BASE_PATH = "/template/";//存放文件模板的地址
@@ -26,23 +30,46 @@ public class PdfUtils {
     private final static String DEFAULT_FONT = "font/simsun.ttc";//默认字体资源文件（[宋体][simsun.ttc]）
     private final static String ENCODING = "UTF-8";//指定编码
 
+
+    public  void createFile(String templateCode, Object data){
+        try {
+            String templatePath = ResourceUtils.getURL("classpath:").getPath();
+            createPDF(templateCode,data,templatePath);
+            waterMark(getPath("test.pdf"),templatePath+"photo/watermark.jpg");
+        }catch (Exception e){
+            log.error("PDF导出异常", e);
+        }
+
+    }
+    private String getPath(String fileName){
+        return System.getProperty("user.dir") + "/" + fileName;
+    }
+    
+    private  FileOutputStream getOutputStream(String fileName) throws IOException {
+        String path = getPath(fileName);
+        File file = new File(path);
+        if (!file.exists()){
+            file.createNewFile();
+        }
+        return new FileOutputStream(file);
+    }
     /**
      * 生成pdf
      * @param templateCode  模板
      * @param data  传入到freemarker模板里的数据
-     * @param out   生成的pdf文件流
      */
-    public static void createPDF(String templateCode, Object data, OutputStream out, String imgName) {
+    public  void createPDF(String templateCode, Object data, String templatePath) {
+        FileOutputStream fileOutputStream = null;
         try {
+            fileOutputStream = getOutputStream("test.pdf");
             // 创建一个FreeMarker实例, 负责管理FreeMarker模板的Configuration实例
             Configuration cfg = new Configuration(Configuration.DEFAULT_INCOMPATIBLE_IMPROVEMENTS);
 
-            String path = ResourceUtils.getURL("classpath:").getPath();
             // 指定FreeMarker模板文件的位置
-            cfg.setDirectoryForTemplateLoading(new File(path + TEMPLATE_BASE_PATH));
+            cfg.setDirectoryForTemplateLoading(new File(templatePath + TEMPLATE_BASE_PATH));
             ITextRenderer renderer = new ITextRenderer();
             // 设置 css中 的字体样式（暂时仅支持宋体和黑体）
-            String fontPath = path + DEFAULT_FONT;
+            String fontPath = templatePath + DEFAULT_FONT;
             renderer.getFontResolver().addFont(fontPath, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
             // 设置模板的编码格式
             cfg.setEncoding(Locale.CHINA, ENCODING);
@@ -56,12 +83,83 @@ public class PdfUtils {
             // 把html代码传入渲染器中
             renderer.setDocumentFromString(html);
             renderer.layout();
-            renderer.createPDF(out, false);
+            renderer.createPDF(fileOutputStream, false);
             renderer.finishPDF();
-            out.flush();
+            fileOutputStream.flush();
-            out.close();
         } catch (Exception e) {
             log.error("PDF导出异常", e);
+        }finally {
+            if (fileOutputStream != null) {
+                try {
+                    fileOutputStream.flush();
+                    fileOutputStream.close();
+                } catch (final IOException e) {
+                    log.error("failed to close outputStream!", e);
+                }
+            }
+        }
+    }
+
+    public  boolean waterMark(String inputFile, String picFilePath) throws IOException, DocumentException {
+        PdfReader reader = null;
+        PdfStamper stamper = null;
+        FileOutputStream fileOutputStream = null;
+        try {
+            int picRowNum = 7;
+            int picColNum = 4;
+            float transDegree = 0.5f;
+            reader = new PdfReader(inputFile);
+            fileOutputStream = getOutputStream("test1.pdf");
+            stamper = new PdfStamper(reader,fileOutputStream);
+            // 设置水印支持中文
+            BaseFont base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);// 使用系统字体
+            int total = reader.getNumberOfPages() + 1;
+            PdfContentByte watermark;
+            // 遍历pdf文件的每页以处理
+            for (int i = 1; i < total; i++) {
+                // 获得PDF最顶层
+                watermark = stamper.getUnderContent(i);  //在内容上方加水印
+                watermark.saveState();
+                PdfGState gs = new PdfGState();
+                // 设置透明度范围为0到1
+                gs.setFillOpacity(transDegree);
+                watermark.setGState(gs);
+                watermark.beginText();
+                watermark.setFontAndSize(base, 15);         //字体大小
+                watermark.setColorFill(BaseColor.BLACK);    //字体颜色
+                for (int col = 1; col < picColNum+1; col++) {
+                    for (int row = 1; row < picRowNum+1; row++) {
+                        if (picFilePath != null || !"".contentEquals(picFilePath)) {
+                            // 设置图片水印
+                            Image image = Image.getInstance(picFilePath);
+                            image.setAbsolutePosition(100f, 250f);
+                            image.scaleAbsolute(500, 500);   // 自定义大小
+                            watermark.setGState(gs);    // 设置透明度
+                            watermark.addImage(image);  // 添加水印图片
+                        }
+                    }
+                }
+                // 添加水印文字
+                watermark.endText();
+                watermark.setLineWidth(1f);
+                watermark.stroke();
+            }
+            stamper.close();
+            reader.close();
+            return true;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }finally {
+            if (stamper != null){
+                stamper.close();
+            }
+            if (reader != null){
+                reader.close();
+            }
+            if (fileOutputStream != null){
+                fileOutputStream.close();
+            }
+            return false;
         }
     }
 

ruoyi-flyingbook/src/main/java/com/ruoyi/flyingbook/controller/EdiController.java

@@ -11,6 +11,7 @@ import org.apache.commons.lang3.time.DateFormatUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import javax.annotation.Resource;
 import javax.servlet.http.HttpServletResponse;
 
 
@@ -20,6 +21,8 @@ public class EdiController extends BaseController {
 
     @Autowired
     private EdiOperateService ediOperateService;
+    @Resource
+    private PdfUtils pdfUtils;
 
     /**
      * 同步数据到飞书表格
@@ -30,14 +33,20 @@ public class EdiController extends BaseController {
 //    }
 
     @RequestMapping("sync2Table")
-    @ResponseBody
+    public void exportPdfDemo(@RequestParam("param")String param) throws Exception{
-    public void exportPdfDemo(HttpServletResponse response, @RequestParam("param")String param) throws Exception{
         CourseFeedbackTemplateDto resultDTO = new CourseFeedbackTemplateDto();
-        resultDTO.setWatermark("");//设置图片,没有图片设置空即可
+        resultDTO.setProgram("program");
-        resultDTO.setTemplateUrl("COURSE_FEEDBACK");//参数
+        resultDTO.setStudentName("student");
-        resultDTO.setProgram("aaaa");
+        resultDTO.setTutor("tutor");
-        resultDTO.setStudentName("aaaa");
+        resultDTO.setStartClassTime("2023-05-21 15:51:45");
-        PdfUtils.createPDF("COURSE_FEEDBACK.ftl",resultDTO,response.getOutputStream(),"");
+        resultDTO.setEndClassTime("2023-05-22 15:51:45");
+        resultDTO.setFeedback("作业完成情况");
+        resultDTO.setFeedbackScore("7 /10");
+        resultDTO.setPerformance("课堂表现");
+        resultDTO.setPerformanceScore("9/10");
+        resultDTO.setContent("<p>1、课堂内容1</p><p>1、课堂内容2</p>");
+        resultDTO.setWork("<p>1、课后作业1</p><p>1、课后作业2</p><p>1、课后作业3</p>");
+        pdfUtils.createFile("COURSE_FEEDBACK.ftl",resultDTO);
     }
 }
 

ruoyi-flyingbook/src/main/java/com/ruoyi/flyingbook/domain/template/CourseFeedbackTemplateDto.java

@@ -19,7 +19,9 @@ public class CourseFeedbackTemplateDto {
     private String endClassTime;
     private String tutor;
     private String feedback;
+    private String feedbackScore;
     private String performance;
+    private String performanceScore;
     private String content;
     private String work;