Java生成pdf文件

应用场景：https://www.cnblogs.com/excellencesy/p/9779057.html    （2）

1，pdf文本表格源码

package com.songyan.pdf;
import java.awt.Color; 
import java.io.File; 
import java.io.FileNotFoundException; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.text.DecimalFormat; 
import java.text.NumberFormat; 
import java.util.ArrayList; 
import java.util.Date; 
   
import com.lowagie.text.Document; 
import com.lowagie.text.DocumentException; 
import com.lowagie.text.Element; 
import com.lowagie.text.Font; 
import com.lowagie.text.PageSize; 
import com.lowagie.text.Paragraph; 
import com.lowagie.text.Phrase; 
import com.lowagie.text.pdf.BaseFont; 
import com.lowagie.text.pdf.PdfCell; 
import com.lowagie.text.pdf.PdfPCell; 
import com.lowagie.text.pdf.PdfPRow; 
import com.lowagie.text.pdf.PdfPTable; 
import com.lowagie.text.pdf.PdfWriter; 
   
public class PDFReport{ 
    Document document = new Document();// 建立一个Document对象     
       
    private static Font headfont ;// 设置字体大小 
    private static Font keyfont;// 设置字体大小 
    private static Font textfont;// 设置字体大小 
       
   
       
    static{ 
        BaseFont bfChinese; 
        try { 
            //bfChinese = BaseFont.createFont("STSong-Light","UniGB-UCS2-H",BaseFont.NOT_EMBEDDED); 
            bfChinese = BaseFont.createFont("STSong-Light","UniGB-UCS2-H",BaseFont.NOT_EMBEDDED); 
            headfont = new Font(bfChinese, 10, Font.BOLD);// 设置字体大小 
            keyfont = new Font(bfChinese, 8, Font.BOLD);// 设置字体大小 
            textfont = new Font(bfChinese, 8, Font.NORMAL);// 设置字体大小 
        } catch (Exception e) {          
            e.printStackTrace(); 
        }  
    } 
       
       
    public PDFReport(File file) {         
         document.setPageSize(PageSize.A4);// 设置页面大小 
         try { 
            PdfWriter.getInstance(document,new FileOutputStream(file)); 
            document.open();  
        } catch (Exception e) { 
            e.printStackTrace(); 
        }  
           
           
    } 
    int maxWidth = 520; 
       
       
     public PdfPCell createCell(String value,com.lowagie.text.Font font,int align){ 
         PdfPCell cell = new PdfPCell(); 
         cell.setVerticalAlignment(Element.ALIGN_MIDDLE);         
         cell.setHorizontalAlignment(align);     
         cell.setPhrase(new Phrase(value,font)); 
        return cell; 
    } 
       
     public PdfPCell createCell(String value,com.lowagie.text.Font font){ 
         PdfPCell cell = new PdfPCell(); 
         cell.setVerticalAlignment(Element.ALIGN_MIDDLE); 
         cell.setHorizontalAlignment(Element.ALIGN_CENTER);  
         cell.setPhrase(new Phrase(value,font)); 
        return cell; 
    } 
   
     public PdfPCell createCell(String value,com.lowagie.text.Font font,int align,int colspan){ 
         PdfPCell cell = new PdfPCell(); 
         cell.setVerticalAlignment(Element.ALIGN_MIDDLE); 
         cell.setHorizontalAlignment(align);     
         cell.setColspan(colspan); 
         cell.setPhrase(new Phrase(value,font)); 
        return cell; 
    } 
    public PdfPCell createCell(String value,com.lowagie.text.Font font,int align,int colspan,boolean boderFlag){ 
         PdfPCell cell = new PdfPCell(); 
         cell.setVerticalAlignment(Element.ALIGN_MIDDLE); 
         cell.setHorizontalAlignment(align);     
         cell.setColspan(colspan); 
         cell.setPhrase(new Phrase(value,font)); 
         cell.setPadding(3.0f); 
         if(!boderFlag){ 
             cell.setBorder(0); 
             cell.setPaddingTop(15.0f); 
             cell.setPaddingBottom(8.0f); 
         } 
        return cell; 
    } 
     public PdfPTable createTable(int colNumber){ 
        PdfPTable table = new PdfPTable(colNumber); 
        try{ 
            table.setTotalWidth(maxWidth); 
            table.setLockedWidth(true); 
            table.setHorizontalAlignment(Element.ALIGN_CENTER);      
            table.getDefaultCell().setBorder(1); 
        }catch(Exception e){ 
            e.printStackTrace(); 
        } 
        return table; 
    } 
     public PdfPTable createTable(float[] widths){ 
            PdfPTable table = new PdfPTable(widths); 
            try{ 
                table.setTotalWidth(maxWidth); 
                table.setLockedWidth(true); 
                table.setHorizontalAlignment(Element.ALIGN_CENTER);      
                table.getDefaultCell().setBorder(1); 
            }catch(Exception e){ 
                e.printStackTrace(); 
            } 
            return table; 
        } 
       
     public PdfPTable createBlankTable(){ 
         PdfPTable table = new PdfPTable(1); 
         table.getDefaultCell().setBorder(0); 
         table.addCell(createCell("", keyfont));          
         table.setSpacingAfter(20.0f); 
         table.setSpacingBefore(20.0f); 
         return table; 
     } 
        
     public void generatePDF() throws Exception{ 
        PdfPTable table = createTable(4); 
        table.addCell(createCell("学生信息列表：", keyfont,Element.ALIGN_LEFT,4,false)); 
               
        table.addCell(createCell("姓名", keyfont, Element.ALIGN_CENTER)); 
        table.addCell(createCell("年龄", keyfont, Element.ALIGN_CENTER)); 
        table.addCell(createCell("性别", keyfont, Element.ALIGN_CENTER)); 
        table.addCell(createCell("住址", keyfont, Element.ALIGN_CENTER)); 
           
        for(int i=0;i<5;i++){ 
            table.addCell(createCell("姓名"+i, textfont)); 
            table.addCell(createCell(i+15+"", textfont)); 
            table.addCell(createCell((i%2==0)?"男":"女", textfont)); 
            table.addCell(createCell("地址"+i, textfont)); 
        } 
        document.add(table); 
           
        document.close(); 
     } 
        
     public static void main(String[] args) throws Exception { 
         File file = new File("D:\\text.pdf"); 
         file.createNewFile(); 
        new PDFReport(file).generatePDF();       
    } 
       
       
}

2，console && 生成的文件