# Itext Pdf 生成相关API
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Itext Pdf 生成、相关API
需求
- 需求
java代码生成PDF效果如下：后端生成Pdf文件，内容包含基本信息表格，图片、pdf需要有页眉，pdf每页含有页码，pdf含有多页。 - 上图看看最后生成的效果如下：
功能实现
- 使用
Itext的Pdf
引入依赖
- 引入下面的依赖
<!-- itextpdf -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.13.3</version>
</dependency>
<!-- pdf 中文支持 -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
注意点
表格双边线的实现
- 双边线的实现思路：使用多层单元格嵌套的效果显示所有单元格的边框
页眉和页码的实现
- 继承
PdfPageEventHelper重写对应的方法，在响应的方法中完成相关逻辑。
代码
ItextPdfUtils.java
public class ItextPdfUtils
private static final Logger logger = LoggerFactory.getLogger(ItextPdfUtils.class);
public static final int TWENTY = 20;
public static final int Thirty = 30;
public static final int TWELVE = 12;
/**
* 中文字体,解决中文不能显示问题
*/
public static BaseFont baseFontChinese = null;
public static Font font = null;
public static Font blueFont = null;
public static Font smallThreeFont = null;
public static Font fiveFont = null;
public static Font smallFiveFont = null;
public static Font smallSixFont = null;
public static Font greenFont = null;
public static Font messFont = null;
public static Font titleFont = null;
static
try
baseFontChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
font = new Font(baseFontChinese);
font.setSize(10);
blueFont = new Font(baseFontChinese);
blueFont.setColor(BaseColor.BLUE);
blueFont.setSize(5);
smallThreeFont = new Font(baseFontChinese, TWENTY);
smallThreeFont.setColor(BaseColor.BLACK);
fiveFont = new Font(baseFontChinese);
fiveFont.setColor(BaseColor.BLACK);
fiveFont.setSize(10.5f);
smallFiveFont = new Font(baseFontChinese);
smallFiveFont.setColor(BaseColor.BLACK);
smallFiveFont.setSize(9);
smallSixFont = new Font(baseFontChinese);
smallSixFont.setColor(BaseColor.BLACK);
smallSixFont.setSize(6.5f);
greenFont = new Font(baseFontChinese, TWELVE, Font.BOLD);
greenFont.setColor(BaseColor.BLACK);
messFont = new Font(baseFontChinese, 12);
messFont.setColor(BaseColor.BLACK);
titleFont = new Font(baseFontChinese, 14, Font.BOLD);
titleFont.setColor(BaseColor.BLACK);
catch (Exception e)
logger.error("Error Occur:0", e);
/**
* pdf 页面生成
*
* @param writer
* @param yeMei
* @param fontSize
* @param pageSize
*/
public static void setFooter(PdfWriter writer, String yeMei, int fontSize, Rectangle pageSize)
ItextPdfHeaderFooter headerFooter = new ItextPdfHeaderFooter(yeMei, pageSize);
writer.setPageEvent(headerFooter);
public static PdfPCell getCell(String title, Font font, int miniMumHeight, int alignMiddle)
PdfPCell pdfPCell;
pdfPCell = new PdfPCell(new Phrase(title, font));
pdfPCell.setMinimumHeight(miniMumHeight);
pdfPCell.setVerticalAlignment(alignMiddle);
return pdfPCell;
public static PdfPCell getCell(String title, Font font, int miniMumHeight)
PdfPCell pdfPCell;
pdfPCell = new PdfPCell(new Phrase(title, font));
pdfPCell.setMinimumHeight(miniMumHeight);
return pdfPCell;
public static PdfPCell getCell(String title, Font font, int miniMumHeight, boolean useAscender, int horizontalAlignment, int verticalAlignment)
PdfPCell pdfPCell;
pdfPCell = new PdfPCell(new Phrase(title, font));
pdfPCell.setUseAscender(useAscender);
pdfPCell.setMinimumHeight(miniMumHeight);
pdfPCell.setVerticalAlignment(verticalAlignment);
pdfPCell.setHorizontalAlignment(horizontalAlignment);
return pdfPCell;
public static PdfPCell getCell(String title, Font font, int miniMumHeight, boolean useAscender, int horizontalAlignment, int verticalAlignment, int colSpan)
PdfPCell pdfPCell;
pdfPCell = new PdfPCell(new Phrase(title, font));
pdfPCell.setUseAscender(useAscender);
pdfPCell.setMinimumHeight(miniMumHeight);
pdfPCell.setVerticalAlignment(verticalAlignment);
pdfPCell.setHorizontalAlignment(horizontalAlignment);
pdfPCell.setColspan(colSpan);
return pdfPCell;
public static PdfPCell getCell(String title, Font font, Integer miniMumHeight, Boolean useAscender, Integer horizontalAlignment, Integer verticalAlignment, Integer colSpan, Integer rowSpan, Integer border, Integer borderWidthTop, Integer borderWidthLeft, Integer borderWidthRight)
Phrase phrase = new Phrase(title, font);
PdfPCell pdfPCell = new PdfPCell(phrase);
if (Objects.nonNull(miniMumHeight))
pdfPCell.setMinimumHeight(miniMumHeight);
if (Objects.nonNull(useAscender))
pdfPCell.setUseAscender(useAscender);
if (Objects.nonNull(horizontalAlignment))
pdfPCell.setHorizontalAlignment(horizontalAlignment);
if (Objects.nonNull(verticalAlignment))
pdfPCell.setVerticalAlignment(verticalAlignment);
if (Objects.nonNull(colSpan))
pdfPCell.setColspan(colSpan);
if (Objects.nonNull(rowSpan))
pdfPCell.setRowspan(rowSpan);
if (Objects.nonNull(border))
pdfPCell.setBorder(border);
if (Objects.nonNull(borderWidthTop))
pdfPCell.setBorderWidthTop(borderWidthTop);
if (Objects.nonNull(borderWidthLeft))
pdfPCell.setBorderWidthLeft(borderWidthLeft);
if (Objects.nonNull(borderWidthRight))
pdfPCell.setBorderWidthRight(borderWidthRight);
return pdfPCell;
ItextPdfTest.java
public class ItextPdfTest
private static final Logger logger = LoggerFactory.getLogger(ItextPdfUtils.class);
private static final float[] columnWidths5 = 0.5f, 0.5f, 0.5f, 0.5f, 0.5f;
/**
* 生成 ItextPdf
*
* @return String
*/
private String createItextPdf()
Date date = new Date();
String startTime = new SimpleDateFormat("yyyyMMddHHmmss").format(date);
String fileName = "demo";
String oldPath = fileName + ".pdf";
// 创建文件
Document document = new Document();
PdfWriter writer = null;
try
document.setPageSize(PageSize.A4);
// 建立一个书写器
writer = PdfWriter.getInstance(document, new FileOutputStream(oldPath));
ItextPdfUtils.setFooter(writer, "测试页眉", 12, PageSize.LEGAL);
// 打开文件
document.open();
// 总表设计一个 4 列的表.
PdfPTable table = new PdfPTable(4);
table.setWidthPercentage(100);
table.setSpacingBefore(100f);
table.setSpacingAfter(10f);
// 设置列宽
float[] columnWidths = 0.8f, 0.8f, 0.5f, 0.5f;
table.setWidths(columnWidths);
PdfPCell cell;
// 第一行
table.addCell(ItextPdfUtils.getCell("", null, TWENTY, true, Cell.ALIGN_CENTER, Cell.ALIGN_MIDDLE, 0, null, 0, 0, 0, 0));
table.addCell(ItextPdfUtils.getCell("ItextPdf 打印测试", smallThreeFont, TWENTY, true, Cell.ALIGN_CENTER, Cell.ALIGN_MIDDLE, 0, null, 0, 0, 0, 0));
table.addCell(ItextPdfUtils.getCell("", fiveFont, TWENTY, true, Cell.ALIGN_RIGHT, Cell.ALIGN_BOTTOM, 2, null, 0, null, null, null));
// 第三行
table.addCell(ItextPdfUtils.getCell("记录人：张三", fiveFont, TWENTY, true, Cell.ALIGN_LEFT, Cell.ALIGN_MIDDLE, 0, null, 0, null, null, null));
table.addCell(ItextPdfUtils.getCell("打印日期：" + new SimpleDateFormat("yyyy-MM-dd HH-mm-ss").format(new Date()), fiveFont, TWENTY, true, Cell.ALIGN_CENTER, Cell.ALIGN_MIDDLE, 0, null, 0, null, null, null));
table.addCell(ItextPdfUtils.getCell("编号：AAAAAAAAAAAAA号", fiveFont, TWENTY, true, Cell.ALIGN_RIGHT, Cell.ALIGN_MIDDLE, 2, null, 0, null, null, null));
// 第一个表格
PdfPTable personInfoTable = new PdfPTable(5);
float[] headerTableColumnWidth = 0.5f, 0.5f, 0.5f, 0.5f, 0.5f;
personInfoTable.setWidthPercentage(100);
personInfoTable.setWidths(headerTableColumnWidth);
personInfoTable.addCell(ItextPdfUtils.getCell("编号", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("姓名", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
Image img = Image.getInstance("demo.jpg");
PdfPCell imageCell = new PdfPCell(new Phrase("照片", fiveFont));
imageCell.setVerticalAlignment(Cell.ALIGN_MIDDLE);
imageCell.setHorizontalAlignment(Cell.ALIGN_CENTER);
imageCell.setRowspan(4);
imageCell.setImage(img);
personInfoTable.addCell(imageCell);
personInfoTable.addCell(ItextPdfUtils.getCell("性别", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("籍贯", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("民族", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(ItextPdfUtils.getCell("", fiveFont, Thirty, Cell.ALIGN_MIDDLE));
personInfoTable.addCell(Itex以上是关于# Itext Pdf 生成相关API的主要内容，如果未能解决你的问题，请参考以下文章