使用iText JAR生成PDF

在很多的場合，需要使用PDF文件，有時候也要設置PDF文件的表格和文字等。

如果讓一個PDF工具類非常靈活，那么這個工具類就會很復雜；一般根據實際情況，寫幾個合適的工具類來分別實現不同要求；

需要引入第三方jar包：iText-2.1.4.jar和iTextAsian.jar

package com.daily;

import java.awt.Color;

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStream;

import java.util.ArrayList;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import com.daily.EasyExcel.Content;

import com.lowagie.text.Cell;

import com.lowagie.text.Document;

import com.lowagie.text.Element;

import com.lowagie.text.Font;

import com.lowagie.text.Paragraph;

import com.lowagie.text.Phrase;

import com.lowagie.text.Table;

import com.lowagie.text.pdf.BaseFont;

import com.lowagie.text.pdf.PdfWriter;

/**

*生成pdf文件，書寫普通文字，制作表格，設置文字顏色和簡單排版等

*@author范芳銘

*/

public class EasyPdf {

privatevoid createPdfFile(String outFilename,Map model,List table)    throws Exception{

try{

OutputStream file = newFileOutputStream(new File(outFilename));

Document document = newDocument();

PdfWriter.getInstance(document,file);

document.open();

document.add(newParagraph("Hello PDF"));  //簡單文字

document.add(new Paragraph(newDate().toString()));  //簡單日期

//設置字體，表格等內容

BaseFont bfComic =BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);

Font font = newFont(bfComic, 16,Font.NORMAL);//聲明字體對象

font = newFont(bfComic,16,1,new Color(255,0,0));//設置字體

String header =(String)model.get("header");//獲取標題

Paragraph headerParagraph =new Paragraph(header,font);

headerParagraph.setAlignment(Paragraph.ALIGN_CENTER);//設置格式

document.add(headerParagraph);//添加到Document對象中

font = new Font(bfComic,10, Font.NORMAL);//聲明字體樣式

//設置PDF中表格的表頭

String title[] = {"code","名稱"};

Table t = newTable(title.length);//聲明表格對象

t.normalize();

t.setAutoFillEmptyCells(true);

t.setAlignment(Table.ALIGN_CENTER);//居中

t.setWidth(108);//設置寬度

for(int i = 0 ; i

Cell celltitle = newCell();//聲明單元格

celltitle.add(newPhrase(title[i],font));//循環加入表頭信息

celltitle.setHorizontalAlignment(Element.ALIGN_CENTER);

t.addCell(celltitle);

}

t.endHeaders();

//加入表格內容

Content content = null;

for (int i = 0; i

//得到要寫入表格的記錄

content = table.get(i);

CelloneCell = new Cell();  //聲明單元格對象

Paragraphpgdata = new Paragraph(content.getCode(),font);

oneCell.setHorizontalAlignment(Element.ALIGN_CENTER);//對齊方式

oneCell.addElement(pgdata);

t.addCell(oneCell);

CelltwoCell = new Cell();  //聲明單元格對象

twoCell.setHorizontalAlignment(Element.ALIGN_CENTER);//對齊方式

twoCell.addElement(pgdata);

t.addCell(twoCell);

}

document.add(t);

String copyright =(String)model.get("copyright");

ParagraphcopyrightParagraph = new Paragraph(copyright,font);

copyrightParagraph.setAlignment(Paragraph.ALIGN_BOTTOM);

document.add(copyrightParagraph);

document.close();

file.close();

} catch (Exception e) {

e.printStackTrace();

}

}

publicstatic void main(String[] args) throws Exception{

//初始化數據

Mapmodel = new HashMap();

//文件標題頭

model.put("header","詳細信息");

//文件版權信息

model.put("copyright","版權所有:阿飯同學的博客 http://blog.csdn.net/ffm83");

//生成表格的內容,內部類的構造有點特殊

Listcontents = new ArrayList();

contents.add(newEasyPdf().new Content("100","name100"));

contents.add(newEasyPdf().new Content("101","name101"));

contents.add(newEasyPdf().new Content("102","name102"));

longstart = System.currentTimeMillis();

EasyPdfpdf = new EasyPdf();

pdf.createPdfFile("d:/ffm83/easy.pdf",model,contents);

longend = System.currentTimeMillis();

System.out.println("生成pdf文件耗時："+ (end - start) + "(毫秒)");

}

//一個簡單的保存簡單信息的內部類

publicclass Content {

privateString code;

private String name;

public Content(String code,String name){

this.code= code;

this.name= name;

}

publicString getCode() {

returncode;

}

publicvoid setCode(String code) {

this.code= code;

}

publicString getName() {

returnname;

}

publicvoid setName(String name) {

this.name= name;

}

}

}