JAVA itext5生成PDF报告文档

1.引入maven依赖。

<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.11</version>
</dependency>
<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itext-asian</artifactId>
    <version>5.2.0</version>
</dependency>

2.编写PDFUtil.java工具类。

/** PDF工具类 */
@Slf4j
public class PDFUtil {

    public static final String PDF_URL = "C:/Users/恢复演练报告.pdf";

    /**
     * 获取当前时间，返回格式 yyyy-MM-dd HH:mm:ss
     * @return
     */
    public static String getNowDate(){
        return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()).toString();
    }

    /**
     * 创建PDF文档和自定义头部
     * @return
     * @throws DocumentException
     * @throws IOException
     */
    public static Document createPdfHead() throws DocumentException, IOException {
        Document document = new Document();
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(PDF_URL));
        document.open();
        BaseFont fontChinese = BaseFont.createFont("STSong-Light","UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
        Font fontChina18 = new Font(fontChinese, 18);
        Font fontChina12 = new Font(fontChinese, 12);
        Paragraph titleParagraph = new Paragraph("数据库备份恢复演练报告",fontChina18);
        titleParagraph.setAlignment(Element.ALIGN_CENTER);// 居中
        document.add(titleParagraph);
        Paragraph blank = new Paragraph(" ");
        document.add(blank);
        Chunk c1 = new Chunk("创建日期：", fontChina12);
        Chunk c2 = new Chunk(new SimpleDateFormat("yyyy-MM-dd").format(new Date()).toString(), fontChina12);
        Paragraph snoParagraph = new Paragraph();
        snoParagraph.add(c1);
        snoParagraph.add(c2);
        snoParagraph.setAlignment(Element.ALIGN_RIGHT);
        document.add(snoParagraph);
        document.add(blank);
        return document;
    }

    public static PdfPTable createTable() throws DocumentException,IOException{
        BaseFont fontChinese = BaseFont.createFont("STSong-Light","UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
        Font fontChina18 = new Font(fontChinese, 18);
        Font fontChina12 = new Font(fontChinese, 12);
        PdfPTable table = new PdfPTable(4);
        table.setWidthPercentage(100);
        // 恢复演练实例名
        table.addCell(PDFUtil.setCell("恢复演练实例名",fontChina12));
        table.addCell(PDFUtil.setCell("pg857da",fontChina12,3));
        table.addCell(PDFUtil.setCell("目标实例",fontChina12));
        table.addCell(PDFUtil.setCell("pg8956u",fontChina12));
        table.addCell(PDFUtil.setCell("目标实例端口号",fontChina12));
        table.addCell(PDFUtil.setCell("3306",fontChina12));
        table.addCell(PDFUtil.setCell("恢复演练开始时间",fontChina12));
        table.addCell(PDFUtil.setCell(PDFUtil.getNowDate(),fontChina12,3));
        table.addCell(PDFUtil.setCell("恢复演练结束时间",fontChina12));
        table.addCell(PDFUtil.setCell(PDFUtil.getNowDate(),fontChina12,3));
        table.addCell(PDFUtil.setCell("恢复演练执行人",fontChina12));
        table.addCell(PDFUtil.setCell("XXXXXX团队",fontChina12,3));
        table.addCell(PDFUtil.setCell("恢复演练方式",fontChina12));
        table.addCell(PDFUtil.setCell("按最近一次全备恢复",fontChina12,3));
        table.addCell(PDFUtil.setCell("恢复演练结果",fontChina12));
        table.addCell(PDFUtil.setCell("验证通过",fontChina12,3));
        table.addCell(PDFUtil.setCenterCell("恢复演练过程",fontChina12,4));
        table.addCell(PDFUtil.setCell("(1)选择恢复的备份片",fontChina12,4));
        table.addCell(PDFUtil.setBackupSetCell(fontChina12,4));
        table.addCell(PDFUtil.setCell("(2)恢复演练结果",fontChina12,4));
        table.addCell(PDFUtil.setDrillResultCell(fontChina12,4));
        table.addCell(PDFUtil.setCell("(3)实例恢复信息",fontChina12,4));
        table.addCell(PDFUtil.setRestoreInfoCell(fontChina12,4));
        table.addCell(PDFUtil.setCell("(4)启库信息",fontChina12,4));
        table.addCell(PDFUtil.setCell(" ",fontChina12,4));
        table.addCell(PDFUtil.setCell("(5)恢复准确性信息",fontChina12,4));
        table.addCell(PDFUtil.setAccuracyInfoCell(fontChina12,4));
        table.addCell(PDFUtil.setCell("(6)释放恢复实例信息",fontChina12,4));
        table.addCell(PDFUtil.setReleaseInfoCell(fontChina12,4));
        return table;
    }
    /**
     *
     * @param text 文本内容
     * @param font  字体
     * @param colspan 夸多少列
     * @return PDF单元格
     */
    public static PdfPCell setCell(String text,Font font,int colspan){
        PdfPCell cell = new PdfPCell();
        cell.setPhrase(new Paragraph(text, font));
        cell.setColspan(colspan);
        return cell;
    }

    /**
     *
     * @param text 文本
     * @param font 字体
     * @return PDF单元格
     */
    public static PdfPCell setCell(String text,Font font){
        PdfPCell cell = new PdfPCell();
        cell.setPhrase(new Paragraph(text, font));
        return cell;
    }

    /**
     * 设置单元格文本内容垂直居中
     * @param text 文本
     * @param font 字体
     * @param colspan 夸多少列
     * @return
     */
    public static PdfPCell setCenterCell(String text,Font font,int colspan){
        PdfPCell cell = new PdfPCell();
        Paragraph para = new Paragraph(text,font);
        cell.setPhrase(para);
        cell.setColspan(colspan);
        cell.setUseAscender(true);
        cell.setVerticalAlignment(cell.ALIGN_MIDDLE);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER); //水平居中
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE); //垂直居中
        return cell;
    }

    public static PdfPCell setBackupSetCell(Font font,int colspan){
        PdfPCell cell = new PdfPCell();
        cell.setColspan(colspan);
        cell.setFixedHeight(100);
        Paragraph startTime = new Paragraph("开始时间： "+getNowDate(),font);
        Paragraph finishTime = new Paragraph("结束时间： "+getNowDate(),font);
        Paragraph size = new Paragraph("备份片大小： "+"1024",font);
        Paragraph backupType = new Paragraph("备份类型： "+"自动备份",font);
        Paragraph status = new Paragraph("备份片状态： "+"备份成功",font);
        cell.addElement(startTime);
        cell.addElement(finishTime);
        cell.addElement(size);
        cell.addElement(backupType);
        cell.addElement(status);
        return cell;
    }

    public static PdfPCell setDrillResultCell(Font font,int colspan){
        PdfPCell cell = new PdfPCell();
        cell.setColspan(colspan);
        cell.setFixedHeight(120);
        Paragraph id = new Paragraph("操作ID： "+"549",font);
        Paragraph name = new Paragraph("实例名称： "+"pgm789k",font);
        Paragraph des = new Paragraph("操作描述： "+"创建恢复实例",font);
        Paragraph startTime = new Paragraph("恢复开始时间： "+getNowDate(),font);
        Paragraph finishTime = new Paragraph("恢复结束时间： "+getNowDate(),font);
        Paragraph status = new Paragraph("恢复状态： "+"成功",font);
        cell.addElement(id);
        cell.addElement(name);
        cell.addElement(des);
        cell.addElement(startTime);
        cell.addElement(finishTime);
        cell.addElement(status);
        return cell;
    }

    public static PdfPCell setRestoreInfoCell(Font font,int colspan){
        PdfPCell cell = new PdfPCell();
        cell.setColspan(colspan);
        cell.setFixedHeight(120);
        String str1 = "恢复实例名称："+"pgm789k"+"           "+"恢复实例类型："+"临时恢复实例";
        String str2 = "运行状态："+"运行中"+"              "+"          可用区："+"ECA";
        String str3 = "数据库类型："+"postgre9.6.10"+"          "+"创建时间："+getNowDate();
        Paragraph id = new Paragraph(str1,font);
        Paragraph name = new Paragraph(str2,font);
        Paragraph des = new Paragraph(str3,font);
        Paragraph port = new Paragraph("连接端口： "+"12345",font);
        Paragraph url = new Paragraph("域名： "+"pgm789k.db.papub",font);
        Paragraph src = new Paragraph("恢复来源： "+"pga675r",font);
        cell.addElement(id);
        cell.addElement(name);
        cell.addElement(des);
        cell.addElement(port);
        cell.addElement(url);
        cell.addElement(src);
        return cell;
    }

    public static PdfPCell setAccuracyInfoCell(Font font,int colspan){
        PdfPCell cell = new PdfPCell();
        cell.setColspan(colspan);
        cell.setFixedHeight(120);
        Paragraph id = new Paragraph("备份实例ID： "+"54369",font);
        Paragraph name = new Paragraph("开始archive 日志地址： "+"00000000F1000020000000F",font);
        Paragraph des = new Paragraph("结束archive 日志地址： "+"00000000F1000020000000F",font);
        Paragraph startTime = new Paragraph("开始时间： "+getNowDate(),font);
        Paragraph finishTime = new Paragraph("结束时间： "+getNowDate(),font);
        Paragraph status = new Paragraph("状态： "+"成功",font);
        cell.addElement(id);
        cell.addElement(name);
        cell.addElement(des);
        cell.addElement(status);
        cell.addElement(startTime);
        cell.addElement(finishTime);
        return cell;
    }

    public static PdfPCell setReleaseInfoCell(Font font,int colspan){
        PdfPCell cell = new PdfPCell();
        cell.setColspan(colspan);
        cell.setFixedHeight(120);
        Paragraph id = new Paragraph("资源名称： "+"pgm789k",font);
        Paragraph name = new Paragraph("操作： "+"删除PG实例",font);
        Paragraph des = new Paragraph("操作时间： "+getNowDate(),font);
        Paragraph finishTime = new Paragraph("结束时间： "+getNowDate(),font);
        Paragraph status = new Paragraph("状态： "+"成功",font);
        cell.addElement(id);
        cell.addElement(name);
        cell.addElement(des);
        cell.addElement(finishTime);
        cell.addElement(status);
        return cell;
    }
}

3.编写前端控制器

@RestController
@Slf4j
public class DemoController {

    @GetMapping("/pdf")
    public String pdf() throws FileNotFoundException, DocumentException, IOException {
        log.info(">>>开始创建PDF文档");
        Document document = PDFUtil.createPdfHead();
        PdfPTable table = PDFUtil.createTable();
        document.add(table);
        document.close();
        log.info(">>>PDF文档创建成功");
        return "PDF文档创建成功";
    }
}

4.访问连接http://localhost:8184/pdf

然后在本地电脑C:\Users路径查看PDF文档