【文件】java生成PDF文件

package test;
import java.awt.Color;
import java.io.FileOutputStream;

import org.junit.Test;

import com.lowagie.text.Chapter;
import com.lowagie.text.Document;
import com.lowagie.text.Font;
import com.lowagie.text.FontFactory;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Section;
import com.lowagie.text.pdf.PdfWriter;

public class PDFTest {

    @Test
    public  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("D:\\TMP\\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
     */
    @Test
    public  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("D:\\TMP\\ITextTest.pdf"));

        //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();
        //打开文件
        document.open();
        //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();
    }

}