生成pdf文件的东东

利用iText-2.1.4.jar开源软件
生成pdf文件的示例代码：

/**
	 * 生成纯本文的pdf文件
	 * @throws Exception
	 */
	public static void writeSimplePdf() throws Exception{
		//1.新建document对象
		//第一个参数是页面大小。接下来的参数分别是左、右、上和下页边距。
		Document document = new Document(PageSize.A4, 50, 50, 50, 50);
		//2.建立一个书写器(Writer)与document对象关联，通过书写器(Writer)可以将文档写入到磁盘中。
		//创建 PdfWriter 对象 第一个参数是对文档对象的引用，第二个参数是文件的实际名称，在该名称中还会给出其输出路径。
		PdfWriter writer = PdfWriter.getInstance(document, 	new FileOutputStream("C:\\ITextTest.pdf"));
		//3.打开文档
		document.open();		
		//4.向文档中添加内容
		//通过 com.lowagie.text.Paragraph 来添加文本。可以用文本及其默认的字体、颜色、大小等等设置来创建一个默认段落
		document.add(new Paragraph("First page of the document."));
		document.add(new Paragraph("Some more text on the 	first page with different color and font type.", 
		FontFactory.getFont(FontFactory.COURIER, 14, Font.BOLD, new Color(255, 150, 200))));
		//5.关闭文档
		document.close();
	}
	
	/**
	 * 添加含有章节的pdf文件
	 * @throws Exception
	 */
	public static void writeCharpter() throws Exception{
		//新建document对象  第一个参数是页面大小。接下来的参数分别是左、右、上和下页边距。
		Document document = new Document(PageSize.A4, 20, 20, 20, 20);
		//建立一个书写器(Writer)与document对象关联，通过书写器(Writer)可以将文档写入到磁盘中。
		PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream("c:\\ITextTest.pdf"));
		//打开文件
		document.open();
		//标题
		document.addTitle("Hello mingri example");
		//作者
		document.addAuthor("wolf");
		//主题
		document.addSubject("This example explains how to add metadata.");
		document.addKeywords("iText, Hello mingri");
		document.addCreator("My program using iText");
//		document.newPage();
		//向文档中添加内容
		document.add(new Paragraph("\n"));
		document.add(new Paragraph("\n"));
		document.add(new Paragraph("\n"));
		document.add(new Paragraph("\n"));
		document.add(new Paragraph("\n"));
		document.add(new Paragraph("First page of the document."));
		document.add(new Paragraph("First page of the document."));
		document.add(new Paragraph("First page of the document."));
		document.add(new Paragraph("First page of the document."));
		document.add(new Paragraph("Some more text on the first page with different color and font type.",
						FontFactory.getFont(FontFactory.defaultEncoding, 10,Font.BOLD, new Color(0, 0, 0))));
		Paragraph title1 = new Paragraph("Chapter 1", 
						FontFactory.getFont(FontFactory.HELVETICA, 18, Font.BOLDITALIC, new Color(0, 0,255)));
		//新建章节
		Chapter chapter1 = new Chapter(title1, 1);
		chapter1.setNumberDepth(0);
		Paragraph title11 = new Paragraph("This is Section 1 in Chapter 1",
				FontFactory.getFont(FontFactory.HELVETICA, 16, Font.BOLD,new Color(255, 0, 0)));
		Section section1 = chapter1.addSection(title11);
		Paragraph someSectionText = new Paragraph("This text comes as part of section 1 of chapter 1.");
		section1.add(someSectionText);
		someSectionText = new Paragraph("Following is a 3 X 2 table.");
		section1.add(someSectionText);
		document.add(chapter1);
		//关闭文档
		document.close();
	}