Maven:
<!--iText（用于生成PDF）-->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.10</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
包引用：
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.*;
1. 详情见代码：
/**
* PDF工具
*/
public class PdfUtils {
/**
* 生成
* @param iouData 借据数据
* @param planList 还款计划List
* @param accountsList 收本金账户
* @param interstAccountsList 收息账户
* @param orderCode
* @return
*/
public static String turnToPdf(LoanIouData iouData,List<LoanRepaymentPlan> planList, List<TransferAccount> accountsList, List<TransferAccount> interstAccountsList, String orderCode){
String basePath = PropertiesUtil.getValue("pdf.path","/application.properties");
File file = new File(basePath);
if(!file.exists()){
file.mkdirs();
}
String path = "";
try {
//创建文件
Document document = new Document();
//建立一个书写器
path = basePath+orderCode+"_还款计划表.pdf";
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(path));
//打开文件
document.open();
//中文字体,解决中文不能显示问题
BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
Font font = new Font(bfChinese);//正常字体
Font fontBold = new Font(bfChinese, 12, Font.BOLD);//正常加粗字体
Font fontBig = new Font(bfChinese, 20);//大字体
Font fontBigBold = new Font(bfChinese, 20, Font.BOLD);//加粗大字体
//添加主题
Paragraph theme = new Paragraph("还款计划表", fontBigBold);
theme.setAlignment(Element.ALIGN_CENTER);
document.add(theme);
//借款信息
Paragraph peopleInfo = new Paragraph("借款人："+iouData.getBorrower()+" "+"借款金额："+iouData.getLoanAmount()+"万元", font);
peopleInfo.setAlignment(Element.ALIGN_CENTER);
document.add(peopleInfo);
//加入空行
//Paragraph blankRow = new Paragraph(18f, " ");
//document.add(blankRow);
//TODO Table1 还款计划 : 3列的表.-------------------------------------
PdfPTable table1 = new PdfPTable(3);
table1.setWidthPercentage(90); // 宽度100%填充
table1.setSpacingBefore(20f); // 前间距
table1.setSpacingAfter(20f); // 后间距
List<PdfPRow> listRow = table1.getRows();
//设置列宽
float[] columnWidths = {1f, 2f, 3f};
table1.setWidths(columnWidths);
//行1
PdfPCell cells0[] = new PdfPCell[3];
PdfPRow row0 = new PdfPRow(cells0);
//单元格
cells0[0] = new PdfPCell(new Paragraph("期数", fontBold));//单元格内容
cells0[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells0[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells0[0].setFixedHeight(25f);
cells0[0].setBackgroundColor(BaseColor.LIGHT_GRAY);
cells0[1] = new PdfPCell(new Paragraph("日期", fontBold));
cells0[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells0[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells0[1].setBackgroundColor(BaseColor.LIGHT_GRAY);
cells0[2] = new PdfPCell(new Paragraph("金额（元）", fontBold));
cells0[2].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells0[2].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells0[2].setBackgroundColor(BaseColor.LIGHT_GRAY);
listRow.add(row0);
//插入还款内容
for (LoanRepaymentPlan plan : planList) {
PdfPCell cells[] = new PdfPCell[3];
PdfPRow row = new PdfPRow(cells);
cells[0] = new PdfPCell(new Paragraph(String.valueOf(plan.getNum())));
cells[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells[0].setFixedHeight(25f);
cells[1] = new PdfPCell(new Paragraph(String.valueOf(DateFormatUtils.format(plan.getRepaymentTime(), "yyyy/MM/dd"))));
cells[1].setFixedHeight(25f);
cells[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells[2] = new PdfPCell(new Paragraph(String.valueOf(plan.getReturnAmount())));
cells[2].setFixedHeight(25f);
cells[2].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells[2].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
//把第单元格添加到集合（行）
listRow.add(row);
}
//TODO Table2 账户列表 : 2列的表.------------------------------------------------------------------------
PdfPTable table2 = new PdfPTable(2);
table2.setWidthPercentage(90); // 宽度100%填充
table2.setSpacingBefore(20f); // 前间距
table2.setSpacingAfter(20f); // 后间距
List<PdfPRow> listRow2 = table2.getRows();
//设置列宽
float[] columnWidths2 = {1f, 2f};
table2.setWidths(columnWidths2);
//TODO --第一部分
PdfPCell cells2[] = new PdfPCell[2];
PdfPRow row2 = new PdfPRow(cells2);
cells2[0] = new PdfPCell(new Paragraph("还息账号信息", fontBold));//单元格内容
cells2[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells2[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells2[0].setFixedHeight(25f);
cells2[0].setBackgroundColor(BaseColor.LIGHT_GRAY);
cells2[0].setColspan(2);//合并单元格
listRow2.add(row2);
for(TransferAccount interstAccount : interstAccountsList){
PdfPCell cells3[] = new PdfPCell[2];
PdfPRow row3 = new PdfPRow(cells3);
cells3[0] = new PdfPCell(new Paragraph("还息账号", font));//单元格内容
cells3[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells3[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells3[0].setFixedHeight(25f);
cells3[1] = new PdfPCell(new Paragraph(interstAccount.getCertPan(), font));//单元格内容
cells3[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells3[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells3[1].setFixedHeight(25f);
listRow2.add(row3);
PdfPCell cells4[] = new PdfPCell[2];
PdfPRow row4 = new PdfPRow(cells4);
cells4[0] = new PdfPCell(new Paragraph("还息户名", font));//单元格内容
cells4[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells4[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells4[0].setFixedHeight(25f);
cells4[1] = new PdfPCell(new Paragraph(interstAccount.getName(), font));//单元格内容
cells4[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells4[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells4[1].setFixedHeight(25f);
listRow2.add(row4);
PdfPCell cells5[] = new PdfPCell[2];
PdfPRow row5 = new PdfPRow(cells5);
cells5[0] = new PdfPCell(new Paragraph("还息开户行", font));//单元格内容
cells5[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells5[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells5[0].setFixedHeight(25f);
cells5[1] = new PdfPCell(new Paragraph(interstAccount.getOpenBankName(), font));//单元格内容
cells5[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells5[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells5[1].setFixedHeight(25f);
listRow2.add(row5);
}
//TODO --第2部分
PdfPCell cells6[] = new PdfPCell[2];
PdfPRow row6 = new PdfPRow(cells6);
cells6[0] = new PdfPCell(new Paragraph("还本金账号信息", fontBold));//单元格内容
cells6[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells6[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells6[0].setFixedHeight(25f);
cells6[0].setBackgroundColor(BaseColor.LIGHT_GRAY);
cells6[0].setColspan(2);//合并单元格
listRow2.add(row6);
for(TransferAccount account : accountsList){
PdfPCell cells7[] = new PdfPCell[2];
PdfPRow row7 = new PdfPRow(cells7);
cells7[0] = new PdfPCell(new Paragraph("还本金账号", font));//单元格内容
cells7[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells7[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells7[0].setFixedHeight(25f);
cells7[1] = new PdfPCell(new Paragraph(account.getCertPan(), font));//单元格内容
cells7[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells7[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells7[1].setFixedHeight(25f);
listRow2.add(row7);
PdfPCell cells8[] = new PdfPCell[2];
PdfPRow row8 = new PdfPRow(cells8);
cells8[0] = new PdfPCell(new Paragraph("还本金户名", font));//单元格内容
cells8[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells8[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells8[0].setFixedHeight(25f);
cells8[1] = new PdfPCell(new Paragraph(account.getName(), font));//单元格内容
cells8[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells8[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells8[1].setFixedHeight(25f);
listRow2.add(row8);
PdfPCell cells9[] = new PdfPCell[2];
PdfPRow row9 = new PdfPRow(cells9);
cells9[0] = new PdfPCell(new Paragraph("还本金开户行", font));//单元格内容
cells9[0].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells9[0].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells9[0].setFixedHeight(25f);
cells9[1] = new PdfPCell(new Paragraph(account.getOpenBankName(), font));//单元格内容
cells9[1].setHorizontalAlignment(Element.ALIGN_CENTER);//水平居中
cells9[1].setVerticalAlignment(Element.ALIGN_MIDDLE);//垂直居中
cells9[1].setFixedHeight(25f);
listRow2.add(row9);
}
//把表格添加到文件中
document.add(table1);
document.add(table2);
//关闭文档
document.close();
//关闭书写器
writer.close();
}catch (Exception ex){
ex.printStackTrace();
}
return path;
}
}
结果：
2. 面向对象方式，适用特定形式（收据等）
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