Java：讀取CSV檔內容寫入PDF

這支java檔，可以讀取csv檔案內的內容，並且把內容寫入pdf內

1.需要掛載itextpdf.jar檔

2.準備好CSV檔

3.程式碼

import java.io.*;
import java.util.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import com.itextpdf.text.Document.*;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Font;
import com.itextpdf.text.Image;
import com.itextpdf.text.List;
import com.itextpdf.text.ListItem;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.*;

class loadCSV 
{
 static String  filePath="D:\\LoadCSV";
 static String fileName="";
 static Vector<String[]> vData = new Vector<String[]>();
 public static void main(String[] args) throws Throwable
 {
  File f = new File(filePath);
  File[] arrF = f.listFiles();
  for(int i = 0; i < arrF.length; i++) {
   if (arrF[i].getName().toUpperCase().indexOf(".CSV") != -1) {
    fileName = arrF[i].getName();
   } 
  }
  System.out.println(fileName);
  File fr = new File(filePath + "/" + fileName);
  InputStreamReader read = new InputStreamReader (new FileInputStream(fr), "big5");
  BufferedReader br = new BufferedReader(read);
  String line = "";
  
  
  while ((line = br.readLine()) != null) {
   
   System.out.println(line);

   line = line.replace("\",\"", "@split@");
   String[] arrLine = line.split("@split@");
   String meid = arrLine[0];
   System.out.println("========"+meid);
   String name=arrLine[1];
   String tel=arrLine[2];
   vData.add(new String[]{meid,name,tel});
  }

  read.close();
  br.close();
  System.out.println(vData.size());

  Document document = new Document(PageSize.A4, 4f, 0f, 50f, 0f);
  PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(filePath + "/tmp" + ".pdf"));
  document.open();
  document.newPage();
  //建立PdfPTable物件並設定其欄位數
  PdfPTable table = new PdfPTable(2);
  //設定table的寬度
  table.setWidthPercentage(100f);
  //設定每個欄位的寬度
  table.setWidths(new float[]{0.20f, 0.20f});
  PdfPCell title = new PdfPCell(new Phrase("Table's Title"));
  //合併儲存格
  title.setColspan(2);
  //水平置中
  title.setHorizontalAlignment(Element.ALIGN_CENTER);
  //沒有外框線
  title.setBorder(Rectangle.NO_BORDER);

  table.addCell(title);

  for(int i=1;i<vData.size();i++){
   String[] idata = vData.get(i);
   PdfPCell cell_1 = new PdfPCell();
   for(int x=0;x<idata.length ; x++){
    if((vData.size()-1)%2!=0&&i==vData.size()-1){
     
     cell_1.setColspan(2);
     
    }
    cell_1.addElement(new Phrase(idata[x]));
    
    
    
   }
   
   table.addCell(cell_1);
   
  }

//  //設定第一個欄位的內容
//  PdfPCell cell_1 = new PdfPCell();
//  cell_1.addElement(new Phrase("Column 1"));
//  cell_1.addElement(new Phrase("Column 1"));
//  table.addCell(cell_1);
//  
//
//  //設定第二個欄位的內容
//  PdfPCell cell_2 = new PdfPCell();
//  cell_2.addElement(new Phrase("Column 2"));
//  cell_2.addElement(new Phrase("Column 2"));
//  table.addCell(cell_2);

  
  document.add(table);

  document.close();
  writer.close();

  
  
 }
}