feat：pdf导出类

hxhq-modules/hxhq-system/pom.xml

@@ -77,6 +77,28 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <!-- pdf:start -->
+        <dependency>
+            <groupId>com.itextpdf</groupId>
+            <artifactId>itextpdf</artifactId>
+            <version>5.5.11</version>
+        </dependency>
+        <dependency>
+            <groupId>com.itextpdf.tool</groupId>
+            <artifactId>xmlworker</artifactId>
+            <version>5.5.11</version>
+        </dependency>
+        <!-- 支持中文 -->
+        <dependency>
+            <groupId>com.itextpdf</groupId>
+            <artifactId>itext-asian</artifactId>
+            <version>5.2.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

hxhq-modules/hxhq-system/src/main/java/com/hxhq/business/utils/PdfUtil.java

@@ -0,0 +1,388 @@
+package com.hxhq.business.utils;
+
+import com.hxhq.common.core.utils.DateUtils;
+import com.itextpdf.text.*;
+import com.itextpdf.text.Font;
+import com.itextpdf.text.pdf.*;
+import com.itextpdf.text.pdf.draw.LineSeparator;
+import lombok.SneakyThrows;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.file.Paths;
+import java.util.*;
+import java.util.List;
+
+/**
+ * OpenPDF工具类 - 支持保存到本地文件
+ */
+@Component
+public class PdfUtil {
+
+    private static final Logger log = LoggerFactory.getLogger(PdfUtil.class);
+
+    public static void main(String[] args) {
+        String fileDir="d:/";
+        exportForm("张三 2025-12-12 14:52:52",fileDir);
+        exportTable("张三 2025-12-12 14:52:52",fileDir);
+    }
+
+    /**
+     * 导出form
+     * @param qm
+     * @param fileDir
+     * @return
+     */
+    public static String exportForm(String qm,String fileDir) {
+        Document document = null;
+        FileOutputStream fos = null;
+        String filePath = "";
+        try {
+            // 1. 生成文件名
+            String fileName = generateFileName();
+
+            // 2. 确保目录存在
+            File dir = new File(fileDir);
+            if (!dir.exists()) {
+                dir.mkdirs();
+            }
+            // 3. 完整文件路径
+            filePath = Paths.get(fileDir, fileName).toString();
+
+            // 4. 创建PDF文档
+            document = new Document(PageSize.A4);
+            fos = new FileOutputStream(filePath);
+            PdfWriter writer = PdfWriter.getInstance(document, fos);
+
+            // 使用完整的页脚处理器
+            writer.setPageEvent(new CompletePdfFooter());
+
+            // 5. 设置PDF属性
+            document.addTitle("华西海圻");
+            document.addAuthor("华西海圻");
+            document.addCreator("华西海圻");
+            document.addCreationDate();
+            document.open();
+
+            // 6. 设置中文字体
+            BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
+            Font titleFont = new Font(bfChinese, 16, Font.BOLD);
+
+            // 7. 添加签名
+            Paragraph title = new Paragraph(qm, titleFont);
+            title.setAlignment(Element.ALIGN_CENTER);
+            title.setSpacingAfter(20);
+            document.add(title);
+
+            //横线
+            LineSeparator line = new LineSeparator();
+            line.setLineWidth(0.5f);
+            // 设置100%宽度
+            line.setPercentage(100f);  // 百分比宽度
+            // 设置对齐方式
+            line.setAlignment(Element.ALIGN_CENTER);  // Element.ALIGN_CENTER, Element.ALIGN_LEFT等
+            // 设置颜色
+            line.setLineColor(BaseColor.BLACK);
+            // 添加到文档
+            document.add(line);
+
+            Map<String, String> formData = new LinkedHashMap<>();
+            formData.put("姓名","张三");
+            formData.put("性别", "男");
+            formData.put("手机","15882062878");
+
+            // 生成table
+            addFormTableColumns(document, formData,3);
+            log.info("生成成功：{}", filePath);
+        } catch (Exception e) {
+            log.error("生成失败", e);
+            throw new RuntimeException("生成失败: " + e.getMessage());
+        } finally {
+            if (document != null) {
+                document.close();
+            }
+            if (fos != null) {
+                try {
+                    fos.close();
+                } catch (IOException e) {
+                    log.error("关闭文件流失败", e);
+                }
+            }
+        }
+        return filePath;
+    }
+
+    /**
+     * 导出table
+     * @param qm
+     * @param fileDir
+     * @return
+     */
+    public static String exportTable( String qm,String fileDir) {
+        Document document = null;
+        FileOutputStream fos = null;
+        String filePath = "";
+        try {
+            // 1. 生成文件名
+            String fileName = generateFileName();
+
+            // 2. 确保目录存在
+            File dir = new File(fileDir);
+            if (!dir.exists()) {
+                dir.mkdirs();
+            }
+
+            // 3. 完整文件路径
+            filePath = Paths.get(fileDir, fileName).toString();
+
+            // 4. 创建PDF文档
+            document = new Document(PageSize.A4);
+            fos = new FileOutputStream(filePath);
+            PdfWriter writer = PdfWriter.getInstance(document, fos);
+
+            // 使用完整的页脚处理器
+            writer.setPageEvent(new CompletePdfFooter());
+            // 5. 设置PDF属性
+            document.addTitle("华西海圻");
+            document.addAuthor("华西海圻");
+            document.addCreator("华西海圻");
+            document.addCreationDate();
+
+            document.open();
+
+            // 6. 设置中文字体
+            BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
+            Font titleFont = new Font(bfChinese, 18, Font.BOLD);
+            Font headerFont = new Font(bfChinese, 12, Font.BOLD);
+            Font contentFont = new Font(bfChinese, 10, Font.NORMAL);
+
+            // 7. 添加签名
+            Paragraph title = new Paragraph(qm, titleFont);
+            title.setAlignment(Element.ALIGN_CENTER);
+            title.setSpacingAfter(20);
+            document.add(title);
+
+            //横线
+            LineSeparator line = new LineSeparator();
+            line.setLineWidth(0.5f);
+            // 设置100%宽度
+            line.setPercentage(100f);  // 百分比宽度
+            // 设置对齐方式
+            line.setAlignment(Element.ALIGN_CENTER);  // Element.ALIGN_CENTER, Element.ALIGN_LEFT等
+            // 设置颜色
+            line.setLineColor(BaseColor.BLACK);
+            // 添加到文档
+            document.add(line);
+
+            // 9. 创建表格
+            PdfPTable table = new PdfPTable(3);
+            table.setWidthPercentage(100);
+            table.setSpacingBefore(10);
+
+            // 10. 表头
+            String[] headers = {"签名人", "签名意义", "签名时间"};
+            for (String header : headers) {
+                PdfPCell cell = new PdfPCell(new Phrase(header, headerFont));
+                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
+                cell.setBackgroundColor(BaseColor.WHITE);
+                cell.setPadding(8);
+                cell.setBorderWidth(1);
+                table.addCell(cell);
+            }
+
+            // 11. 表格数据
+            int rowNum = 0;
+            for (int i = 0; i < 3; i ++) {
+                // 交替行颜色
+                if (rowNum % 2 == 0) {
+                    table.getDefaultCell().setBackgroundColor(BaseColor.WHITE);
+                } else {
+                    table.getDefaultCell().setBackgroundColor(BaseColor.WHITE);
+                }
+                table.addCell(createCell("1", contentFont));
+                table.addCell(createCell("2", contentFont));
+                table.addCell(createCell("3", contentFont));
+                rowNum++;
+            }
+            document.add(table);
+
+            log.info("生成成功：{}", filePath);
+        } catch (Exception e) {
+            log.error("生成失败", e);
+            throw new RuntimeException("生成失败: " + e.getMessage());
+        } finally {
+            if (document != null) {
+                document.close();
+            }
+            if (fos != null) {
+                try {
+                    fos.close();
+                } catch (IOException e) {
+                    log.error("关闭文件流失败", e);
+                }
+            }
+        }
+        return filePath;
+    }
+
+
+    /**
+     * 创建表单
+     */
+    public static void addFormTableColumns(Document document, Map<String, String> data, Integer count)
+            throws DocumentException, IOException {
+
+        // 创建3列表格
+        PdfPTable table = new PdfPTable(count);
+        table.setWidthPercentage(100);
+        table.setSpacingBefore(10);
+        table.setSpacingAfter(10);
+
+        // 设置等宽列
+        table.setWidths(new float[]{1, 1, 1});
+
+        // 创建字体
+        BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
+        Font labelFont = new Font(baseFont, 10, Font.NORMAL, BaseColor.BLACK);
+        Font valueFont = new Font(baseFont, 10, Font.NORMAL, BaseColor.BLACK);
+
+        // 将数据转换为List
+        List<Map.Entry<String, String>> entries = new ArrayList<>(data.entrySet());
+
+        // 每3个字段一组，每组一行
+        for (int i = 0; i < entries.size(); i += count) {
+            // 创建一行
+            for (int j = 0; j < count; j++) {
+                int index = i + j;
+
+                if (index < entries.size()) {
+                    Map.Entry<String, String> entry = entries.get(index);
+
+                    // 创建单元格内容
+                    Phrase cellContent = new Phrase();
+                    cellContent.add(new Chunk(entry.getKey() + "：", labelFont));
+                    cellContent.add(new Chunk(com.hxhq.common.core.utils.StringUtils.isBlank(entry.getValue()) ? "" : entry.getValue(), valueFont));
+
+                    PdfPCell cell = new PdfPCell(cellContent);
+                    cell.setBorder(Rectangle.NO_BORDER);  // 无边框
+                    cell.setPadding(4);
+                    cell.setHorizontalAlignment(Element.ALIGN_LEFT);
+                    cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
+                    cell.setMinimumHeight(20);  // 最小高度
+
+                    table.addCell(cell);
+                } else {
+                    // 添加空单元格保持布局
+                    PdfPCell emptyCell = new PdfPCell();
+                    emptyCell.setBorder(Rectangle.NO_BORDER);
+                    emptyCell.setMinimumHeight(20);
+                    table.addCell(emptyCell);
+                }
+            }
+        }
+
+        document.add(table);
+    }
+
+    /**
+     * 创建表格
+     */
+    private static PdfPCell createCell(String content, Font font) {
+        PdfPCell cell = new PdfPCell(new Phrase(content, font));
+        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
+        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
+        cell.setPadding(6);
+        cell.setMinimumHeight(25);
+        return cell;
+    }
+
+
+    /**
+     * 生成文件名
+     */
+    private static String generateFileName() {
+        Random random= new Random();
+        String timestamp = DateUtils.dateTimeNow("yyyyMMddHHmmss");
+        return String.format("%s_%s.pdf", timestamp,random.nextInt(1000));
+    }
+
+
+    /**
+     * 页脚
+     */
+    public static class CompletePdfFooter extends PdfPageEventHelper {
+
+        private Font footerFont;
+        private PdfTemplate total;
+        private int totalPages = 0;
+
+        public CompletePdfFooter() {
+            try {
+                BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
+                footerFont = new Font(baseFont, 10, Font.NORMAL, BaseColor.GRAY);
+            } catch (Exception e) {
+                footerFont = new Font(Font.FontFamily.HELVETICA, 10, Font.NORMAL, BaseColor.GRAY);
+            }
+        }
+
+        @Override
+        public void onOpenDocument(PdfWriter writer, Document document) {
+            total = writer.getDirectContent().createTemplate(100, 16);
+        }
+
+        @SneakyThrows
+        @Override
+        public void onEndPage(PdfWriter writer, Document document) {
+            PdfContentByte cb = writer.getDirectContent();
+
+            int currentPage = writer.getPageNumber();
+            float y = document.bottom() - 20;
+
+            // 在每一页都重新计算，确保位置准确
+            String pageText = "第 " + currentPage + " 页 / 共 ";
+            BaseFont baseFont = footerFont.getBaseFont();
+
+            // 计算页面文本宽度
+            float pageTextWidth = baseFont.getWidthPoint(pageText, footerFont.getSize());
+
+            // 临时用估计的总页数计算位置（等文档关闭后会被替换）
+            String tempTotal = String.valueOf(writer.getPageNumber() + 5); // 估计值
+            float totalWidth = baseFont.getWidthPoint(tempTotal, footerFont.getSize());
+
+            // 计算起始位置
+            float totalTextWidth = pageTextWidth + totalWidth +
+                    baseFont.getWidthPoint(" 页", footerFont.getSize());
+            float startX = (document.getPageSize().getWidth() - totalTextWidth) / 2;
+
+            // 写入当前页信息
+            ColumnText.showTextAligned(cb, Element.ALIGN_LEFT,
+                    new Phrase(pageText, footerFont), startX, y, 0);
+
+            // 添加总页数模板
+            cb.addTemplate(total, startX + pageTextWidth, y);
+
+            // 写入"页"字
+            ColumnText.showTextAligned(cb, Element.ALIGN_LEFT,
+                    new Phrase(" 页", footerFont), startX + pageTextWidth + totalWidth, y, 0);
+
+        }
+
+        @Override
+        public void onCloseDocument(PdfWriter writer, Document document) {
+            totalPages = writer.getPageNumber();
+            String totalPagesStr = String.valueOf(totalPages);
+
+            // 重新创建合适宽度的模板
+            BaseFont baseFont = footerFont.getBaseFont();
+            total.beginText();
+            total.setFontAndSize(baseFont, footerFont.getSize());
+            total.setTextMatrix(0, 0);
+            total.showText(totalPagesStr);
+            total.endText();
+        }
+    }
+
+}