最近在工作做一个泰国的项目，应供应商要求，需要将每天的交易生成pdf格式的报表上传到供应商的服务器，特此记录实现方法。废话不多说，直接上代码：

THSarabunNew.ttf该文件是泰国字体自行网上下载即可

import com.itextpdf.text.*;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * TOT上报PDF文件生成工具
 */
@Slf4j
@Component
public class TOTReportPdfService {

private String thaiFont = "./font/THSarabunNew.ttf";

//字体格式
Font font =  FontFactory.getFont(thaiFont, BaseFont.IDENTITY_H, false,-1.0F, -1);

public void generatorPdf(String outPutFilePath, String headerSuffix){
    Document document = new Document(PageSize.A4.rotate(), 20, 20, 50, 20);
    File outputFile = createReportFile(outPutFilePath);
    try {
        //设置输出位置
        PdfWriter.getInstance(document, new FileOutputStream(outputFile));
        //打开文档
        document.open();


        float[] columnWidths = {80, 200, 100,100,80,80,80,80,80,80,80,80};//表格每一列的宽度
        PdfPTable table = createTable(12, columnWidths);

        //表头
        generatorHeader(table,  headerSuffix);

        document.add(table);
    } catch (DocumentException e) {
        e.printStackTrace();
        log.error("TOTReportPdfService.generatorPdf 文件创建失败。{}", e.getMessage());
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        log.error("TOTReportPdfService.generatorPdf 找不到文件{}", e.getMessage());
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        document.close();
    }
}

private File createReportFile(String outPutFilePath) {
    File file = new File(outPutFilePath);
    if (!file.exists()){
        try {
            file.createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return file;
}

private PdfPTable createTable(int colNum, float[] columnWidths) {
    PdfPTable table = new PdfPTable(colNum);
    try {
        table.setWidths(columnWidths);
    } catch (DocumentException e) {
        e.printStackTrace();
        log.error("创建pdf报表失败{}"，e.cause())
    }
    table.setSpacingBefore(20f);//设置页边距
    table.setWidthPercentage(100);//设置表格宽度为100%
    return table;
}

/**
 * 报表表头 12列 8行
 * @param table
 */
private void generatorHeader(PdfPTable table, String headerSuffix) {

    table.addCell(createPdfPCell("", 3, 1));
    table.addCell(createPdfPCell("บริษัท บลูเพย์ จำกัด",  5, 1, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("", 4, 1));

    table.addCell(createPdfPCell("", 3, 1));
    table.addCell(createPdfPCell("การรับชำระผ่านช่องทางอิเล็กทรอนิกส์",  5, 1, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("RP0001_" + headerSuffix, 4, 1));

    table.addCell(createPdfPCell("", 3, 1));
    table.addCell(createPdfPCell("รายงานการรับชำระประจำวัน",  5, 1, Element.ALIGN_CENTER));

    table.addCell(createPdfPCell("", 3, 1));
    table.addCell(createPdfPCell("Page 1 Of 1",  4, 1, Element.ALIGN_RIGHT));

    table.addCell(createPdfPCell("Location 0BBPW", 12, 1, Element.ALIGN_LEFT));

    table.addCell(createPdfPCell("ลำดับที่",  1, 3, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("เลขที่เอกสารยืนยันการทำรายการ",  1, 3, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("Account No. -  Invoice No.", 2,3, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("อัu008Dตราภาษี", 1,3, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("มูลค่าสินค้า / บริการ ที่ต้องเสียภาษี",  5, 1, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("มูลค่าสินค้า / บริการ", 1,1, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("รวมทั้งสิ้น", 1, 3, Element.ALIGN_CENTER));

    table.addCell(createPdfPCell("ภาษี 7% ",  3, 1, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("ภาษี 0% ", 1 , 2, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("รวม",  1,2, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("ยกเว้นภาษี",  1,2, Element.ALIGN_CENTER));

    table.addCell(createPdfPCell("มูลค่าสุทธิ",  1,1, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("ภาษีมูลค่าเพิ่ม",  1, 1, Element.ALIGN_CENTER));
    table.addCell(createPdfPCell("รวม",  1,1, Element.ALIGN_CENTER));
}

private PdfPCell createPdfPCell(String text, int colSpan, int rowSpan) {
    return createPdfPCell(text, colSpan, rowSpan, Element.ALIGN_RIGHT);
}

private PdfPCell createPdfPCell(String text, int colSpan, int rowSpan, int align) {
    PdfPCell pdfPCell = new PdfPCell();
    pdfPCell.setColspan(colSpan);
    pdfPCell.setRowspan(rowSpan);
    pdfPCell.setPhrase(createParagraph(text));
    pdfPCell.setHorizontalAlignment(align);
    pdfPCell.setVerticalAlignment(Element.ALIGN_MIDDLE);
    return pdfPCell;
}

private Paragraph createParagraph(String text) {
    Paragraph paragraph;
    paragraph = new Paragraph(text, font);
    paragraph.setAlignment(Phrase.ALIGN_CENTER);
    return paragraph;
}
}

最近看到一个讲Java生成PDF文件的写得挺好的博客：http://www.anyrt.com/blog/list/itextpdf.html