java生成pdf表格,调用itext创建的实例

Z时代
2024-01-10
分类：综合

昨天花了很长的时间去找pdf生成表格的代码，发现网上大家写的代码太多了，而且又没有注释，让我一个小白是完全看不懂，这就很过分了，所以秉着我们代码界共享的原则，我要把我昨天的收获分享给大家，好了废话不多说，贴代码了。

1.第一步导包


 <dependency>
   <groupId>com.itextpdf</groupId>
   <artifactId>itext-asian</artifactId>
   <version>5.2.0</version>
  </dependency>
  <dependency>
   <groupId>com.itextpdf</groupId>
   <artifactId>itextpdf</artifactId>
   <version>5.4.3</version>
  </dependency>

2.第二步看代码


import com.itextpdf.text.*;
import com.itextpdf.text.pdf.*;
import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List; 
public class PDFXXX { 
 public static void main(String[] args) throws Exception, DocumentException {
  List<String> ponum = new ArrayList<String>();
  add(ponum, 26);
  List<String> line = new ArrayList<String>();
  add(line, 26);
  List<String> part = new ArrayList<String>();
  add(part, 26);
  List<String> description = new ArrayList<String>();
  add(description, 26);
  List<String> origin = new ArrayList<String>();
  add(origin, 26);
  //Create Document Instance
  Document document = new Document();
  //add Chinese font
  BaseFont bfChinese = BaseFont.createFont("d:\\pdf\\simhei.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
  //Font headfont=new Font(bfChinese,10,Font.BOLD);
  Font keyfont = new Font(bfChinese, 8, Font.BOLD);
  Font textfont = new Font(bfChinese, 8, Font.NORMAL);
  //Create Writer associated with document
  PdfWriter.getInstance(document, new FileOutputStream(new File("D:\\POReceiveReport.pdf")));
  document.open(); 
  //Seperate Page controller
  int recordPerPage = 10;
  int fullPageRequired = ponum.size() / recordPerPage;
  int remainPage = ponum.size() % recordPerPage > 1 ? 1 : 0;
  int totalPage = 1;
  for (int j = 0; j < totalPage; j++) {
   document.newPage(); 
   String company = "等待";
   //record header field
   PdfPTable t = new PdfPTable(5);
   float[] widths = {1.5f, 1f, 1f, 1.5f, 1f};
   t.setWidths(widths);
   t.setTotalWidth(100);
   t.getDefaultCell().setBorder(PdfPCell.NO_BORDER);
   PdfPCell c1 = new PdfPCell(new Paragraph("PO#", keyfont));
   t.addCell(c1);
   c1 = new PdfPCell(new Paragraph("Line", keyfont));
   t.addCell(c1);
   c1 = new PdfPCell(new Paragraph("Part#", keyfont));
   t.addCell(c1);
   c1 = new PdfPCell(new Paragraph("Description", keyfont));
   t.addCell(c1);
   c1 = new PdfPCell(new Paragraph("Origin", keyfont));
   t.addCell(c1);
   //calculate the real records within a page ,to calculate the last record number of every page
   int maxRecordInPage = j + 1 == totalPage ? (remainPage == 0 ? recordPerPage : (ponum.size() % recordPerPage)) : recordPerPage;
   for (int i = j * recordPerPage; i < ((j * recordPerPage) + maxRecordInPage); i++) {
    PdfPCell c2 = new PdfPCell(new Paragraph(ponum.get(i), textfont));
    t.addCell(c2);
    c2 = new PdfPCell(new Paragraph(line.get(i), textfont));
    t.addCell(c2);
    c2 = new PdfPCell(new Paragraph(part.get(i), textfont));
    t.addCell(c2);
    c2 = new PdfPCell(new Paragraph(description.get(i), textfont));
    t.addCell(c2);
    c2 = new PdfPCell(new Paragraph(origin.get(i), textfont));
    t.addCell(c2);
   }
   document.add(t); 
  }
  document.close();
 }
 public static String leftPad(String str, int i) {
  int addSpaceNo = i - str.length();
  String space = "";
  for (int k = 0; k < addSpaceNo; k++) {
   space = " " + space;
  }
  ;
  String result = space + str;
  return result;
 }
 public static String printBlank(int tmp) {
  String space = "";
  for (int m = 0; m < tmp; m++) {
   space = space + " ";
  }
  return space;
 }
 public static void add(List<String> list, int num) {
  for (int i = 0; i < num; i++) {
   list.add("test老葛-" + i);
  }
 } 
}