Java和iText导出pdf文档

一：工程截图：

二：项目运行截图：

三：源代码：

Book.java

package com.iText.bean;public class Book {private int bookId;// 图书编号private String name;// 图书名称private String author;// 图书作者private float price;// 图书价格private String isbn;// 图书ISBNprivate String pubName;// 图书出版社private byte[] preface;// 封面图片public Book() {super();}public Book(int bookId, String name, String author, float price,String isbn, String pubName, byte[] preface) {super();this.bookId = bookId;this.name = name;this.author = author;this.price = price;this.isbn = isbn;this.pubName = pubName;this.preface = preface;}public int getBookId() {return bookId;}public void setBookId(int bookId) {this.bookId = bookId;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getAuthor() {return author;}public void setAuthor(String author) {this.author = author;}public float getPrice() {return price;}public void setPrice(float price) {this.price = price;}public String getIsbn() {return isbn;}public void setIsbn(String isbn) {this.isbn = isbn;}public String getPubName() {return pubName;}public void setPubName(String pubName) {this.pubName = pubName;}public byte[] getPreface() {return preface;}public void setPreface(byte[] preface) {this.preface = preface;}}

Student.java

package com.iText.bean;import java.util.Date;public class Student {private long id;// 学号private String name;// 姓名private int age;// 年龄private boolean sex;// 性别private Date birthday;// 出生日期public Student() {super();}public Student(long id, String name, int age, boolean sex, Date birthday) {super();this.id = id;this.name = name;this.age = age;this.sex = sex;this.birthday = birthday;}public long getId() {return id;}public void setId(long id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public boolean getSex() {return sex;}public void setSex(boolean sex) {this.sex = sex;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}}

StrHelp.java

package com.iText.util;import java.io.UnsupportedEncodingException;
/*** 以上是两个帮助封装类，都是为了对付iText的中文问题的* @author zhaoxinguo**/
public class StrHelp {public static String getChinese(String s) {try {return new String(s.getBytes("gb2312"), "iso-8859-1");} catch (UnsupportedEncodingException e) {return s;}}}

PdfParagraph.java

package com.iText.util;import java.io.IOException;
import com.lowagie.text.BadElementException;
import com.lowagie.text.Cell;
import com.lowagie.text.Chunk;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Phrase;
import com.lowagie.text.pdf.BaseFont;/*** 下载地址：http://sourceforge.net/projects/itext/files/latest/download* * @author zhaoxinguo* */
public class PdfParagraph extends Paragraph {/*** */private static final long serialVersionUID = 8852816419489363243L;public PdfParagraph(String content) {super(content, getChineseFont(12, false));}public PdfParagraph(String content, int fontSize, boolean isBold) {super(content, getChineseFont(fontSize, isBold));}// 设置字体-返回中文字体protected static Font getChineseFont(int nfontsize, boolean isBold) {BaseFont bfChinese;Font fontChinese = null;try {bfChinese = BaseFont.createFont("c://windows//fonts//simsun.ttc,1",BaseFont.IDENTITY_H, BaseFont.EMBEDDED);if (isBold) {fontChinese = new Font(bfChinese, nfontsize, Font.BOLD);} else {fontChinese = new Font(bfChinese, nfontsize, Font.NORMAL);}} catch (DocumentException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return fontChinese;}// 转化中文protected Cell ChangeCell(String str, int nfontsize, boolean isBold)throws IOException, BadElementException, DocumentException {Phrase ph = ChangeChinese(str, nfontsize, isBold);Cell cell = new Cell(ph);return cell;}// 转化中文protected Chunk ChangeChunk(String str, int nfontsize, boolean isBold)throws IOException, BadElementException, DocumentException {Font FontChinese = getChineseFont(nfontsize, isBold);Chunk chunk = new Chunk(str, FontChinese);return chunk;}// 转化中文protected Phrase ChangeChinese(String str, int nfontsize, boolean isBold)throws IOException, BadElementException, DocumentException {Font FontChinese = getChineseFont(nfontsize, isBold);Phrase ph = new Phrase(str, FontChinese);return ph;}}

ExportPdf.java

package com.iText.util;import java.awt.Color;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;import javax.swing.JOptionPane;import com.iText.bean.Book;
import com.lowagie.text.Cell;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.HeaderFooter;
import com.lowagie.text.Image;
import com.lowagie.text.PageSize;
import com.lowagie.text.Phrase;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfWriter;/*** 利用开源组件IText2.0.4动态导出PDF文档 转载时请保留以下信息，注明出处！* * @author zhaoxinguo* @version v1.0* @param <T>应用泛型，代表任意一个符合javabean风格的类*        注意这里为了简单起见，boolean型的属性xxx的get器方式为getXxx(),而不是isXxx()*        byte[]表图片数据,注意合适的大小*/
public class ExportPdf<T> {public void exportPdf(Collection<T> dataset, OutputStream out) {exportPdf("测试iText导出PDF文档", null, dataset, out, "yyyy-MM-dd");}public void exportPdf(String[] headers, Collection<T> dataset,OutputStream out) {exportPdf("测试iText导出PDF文档", headers, dataset, out, "yyyy-MM-dd");}public void exportPdf(String[] headers, Collection<T> dataset,OutputStream out, String pattern) {exportPdf("测试iText导出PDF文档", headers, dataset, out, pattern);}/*** 这是一个通用的方法，利用了JAVA的反射机制，可以将放置在JAVA集合中并且符号一定条件的数据以PDF 的形式输出到指定IO设备上* * @param title*            表格标题名* @param headers表格属性列名数组* @param dataset需要显示的数据集合*            ,集合中一定要放置符合javabean风格的类的对象。此方法支持的javabean属性的数据类型有基本数据类型及String*            ,Date,byte[](图片数据)* @param out与输出设备关联的流对象*            ，可以将PDF文档导出到本地文件或者网络中* @param pattern如果有时间数据*            ，设定输出格式。默认为"yyy-MM-dd"*/public void exportPdf(String title, String[] headers,Collection<T> dataset, OutputStream out, String pattern) {// 作为报表的PDF文件，一定要适合打印机的输出打印Rectangle rectPageSize = new Rectangle(PageSize.A4);// 定义A4页面大小// rectPageSize = rectPageSize.rotate();// 加上这句可以实现A4页面的横置Document document = new Document(rectPageSize, 50, 50, 50, 50);// 其余4个参数，设置了页面的4个边距try {// 将PDF文档写出到out所关联IO设备上的书写对象PdfWriter.getInstance(document, out);// 添加文档元数据信息document.addTitle(StrHelp.getChinese(title));document.addSubject("export information");document.addAuthor("leno");document.addCreator("leno");document.addKeywords("pdf itext");// 定义页头和页尾HeaderFooter header = new HeaderFooter(new PdfParagraph(title, 20,true), false);header.setAlignment(Element.ALIGN_CENTER);HeaderFooter footer = new HeaderFooter(new Phrase("This   is   page   "), new Phrase("."));footer.setAlignment(Element.ALIGN_CENTER);document.setHeader(header);document.setFooter(footer);// 打开PDF文档document.open();// 添加一张表格，使用Table或者PdfPTable// Table table = new Table(headers.length);// table.setWidth(16*headers.length);// //table.setWidths(new float[]{20,20,20,30});// table.setCellsFitPage(true);// table.setAutoFillEmptyCells(true);// table.setAlignment(Table.ALIGN_CENTER);// table.setBackgroundColor(Color.yellow);// table.setBorderColor(Color.green);PdfPTable table = new PdfPTable(headers.length);// table.setHorizontalAlignment(Element.ALIGN_CENTER);table.setWidthPercentage(16 * headers.length);// 产生表格标题行for (int i = 0; i < headers.length; i++) {PdfPCell cell = new PdfPCell(new PdfParagraph(headers[i], 14,true));cell.setHorizontalAlignment(Cell.ALIGN_CENTER);cell.setVerticalAlignment(Cell.ALIGN_MIDDLE);cell.setBackgroundColor(Color.cyan);cell.setBorderColor(Color.green);table.addCell(cell);}// 遍历集合数据，产生数据行Iterator<T> it = dataset.iterator();int index = 0;while (it.hasNext()) {index++;T t = (T) it.next();// 利用反射，根据javabean属性的先后顺序，动态调用getXxx()方法得到属性值Field[] fields = t.getClass().getDeclaredFields();for (short i = 0; i < fields.length; i++) {PdfPCell cell = null;Field field = fields[i];String fieldName = field.getName();String getMethodName = "get"+ fieldName.substring(0, 1).toUpperCase()+ fieldName.substring(1);try {Class tCls = t.getClass();Method getMethod = tCls.getMethod(getMethodName,new Class[] {});Object value = getMethod.invoke(t, new Object[] {});// 判断值的类型后进行强制类型转换String textValue = null;if (value instanceof Boolean) {boolean bValue = (Boolean) value;textValue = "男";if (!bValue) {textValue = "女";}} else if (value instanceof Date) {Date date = (Date) value;SimpleDateFormat sdf = new SimpleDateFormat(pattern);textValue = sdf.format(date);} else if (value instanceof byte[]) {byte[] bsValue = (byte[]) value;Image img = Image.getInstance(bsValue);cell = new PdfPCell(img);} else {textValue = value.toString();}// 如果不是图片数据,就当做文本处理if (textValue != null) {cell = new PdfPCell(new PdfParagraph(textValue));}cell.setHorizontalAlignment(Cell.ALIGN_CENTER);cell.setVerticalAlignment(Cell.ALIGN_MIDDLE);cell.setBorderColor(Color.green);table.addCell(cell);} catch (SecurityException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (NoSuchMethodException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IllegalArgumentException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IllegalAccessException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (InvocationTargetException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (MalformedURLException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally {// 清理资源}}}document.add(table);document.close();} catch (DocumentException e) {// TODO Auto-generated catch blocke.printStackTrace();}}public static void main(String[] args) throws Exception {// 测试学生/*ExportPdf<Student> ex = new ExportPdf<Student>();String[] headers = { "学号", "姓名", "年龄", "性别", "出生日期" };java.util.List<Student> dataset = new ArrayList<Student>();dataset.add(new Student(10000001, "张三", 20, true, new Date()));dataset.add(new Student(20000002, "李四", 24, false, new Date()));dataset.add(new Student(30000003, "王五", 22, true, new Date()));OutputStream out = new FileOutputStream("E://Student.pdf");ex.exportPdf(headers, dataset, out);out.close();JOptionPane.showMessageDialog(null, "pdf导出成功!");*//****************************************************************************/// 测试图书ExportPdf<Book> ex2 = new ExportPdf<Book>();String[] headers2 = { "图书编号", "图书名称", "图书作者", "图书价格", "图书ISBN","图书出版社", "封面图片" };java.util.List<Book> dataset2 = new ArrayList<Book>();try {BufferedInputStream bis = new BufferedInputStream(new FileInputStream("book_1.jpg"));byte[] buf = new byte[bis.available()];while ((bis.read(buf)) != -1) {//}dataset2.add(new Book(1, "jsp", "leno", 300.33f, "1234567","清华出版社", buf));dataset2.add(new Book(2, "java编程思想", "brucl", 300.33f, "1234567","阳光出版社", buf));dataset2.add(new Book(3, "DOM艺术", "lenotang", 300.33f, "1234567","清华出版社", buf));dataset2.add(new Book(4, "c++经典", "leno", 400.33f, "1234567","清华出版社", buf));dataset2.add(new Book(5, "c#入门", "leno", 300.33f, "1234567","汤春秀出版社", buf));OutputStream out2 = new FileOutputStream("E://Book.pdf");ex2.exportPdf(headers2, dataset2, out2);out2.close();JOptionPane.showMessageDialog(null, "pdf导出成功!");System.out.println("pdf导出成功！");} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}
}