iText 生成PDF,加页码

 

 

 

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPRow;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;


public class PDFBuilder {
	private int pageHeight;
	private int pageWidth;

	private PDFBuilder() {
	}

	public static PDFBuilder getInstance() {
		return new PDFBuilder();
	}

	public void generatePDF() throws Exception {

		String fileName = "c:\\b.pdf";
		File fn = new File(fileName);
		if (!fn.exists()) {
			try {
				fn.createNewFile();
			} catch (IOException e) {
				e.printStackTrace();

			}

		} else {
			fn.delete();
			fn.createNewFile();
		}
		Document document = new Document(new Rectangle(pageWidth, pageHeight));
		//Document document = new Document(PageSize.A4);
		

		
		PdfWriter writer = PdfWriter.getInstance(document,
				new FileOutputStream(fileName));
		this.setFooter(writer);
		writer.setFullCompression();
		writer.setPdfVersion(PdfWriter.VERSION_1_4);
		document.open();

		BaseFont bfTitle = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",
				BaseFont.NOT_EMBEDDED);
		Font titleFont = new Font(bfTitle, 18, Font.NORMAL);

		// 内容字体
		BaseFont bfComic = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",
				BaseFont.NOT_EMBEDDED);
		Font font = new Font(bfComic, 9, Font.NORMAL);

		// Set pdf version to 1.4
		PdfContentByte cb = writer.getDirectContent();
		ColumnText ct = new ColumnText(cb);

		// for(int i=0;i<1;i++){
		document.newPage();

		// 生成三列表格
		PdfPTable table = new PdfPTable(6);

		// 设置表格具体宽度
		table.setWidthPercentage(100);
		table.setWidthPercentage(100);
		// 设置每一列所占的长度
		table.setWidths(new float[] { 20f, 20f, 20f, 40f, 20f, 40f });

		// table.addCell("----------------------");

		PdfPCell cell1 = new PdfPCell();
		Paragraph para = new Paragraph("序号", font);
		// 设置该段落为居中显示
		para.setAlignment(1);
		cell1.setPhrase(para);
		table.addCell(cell1);

		table.addCell(new PdfPCell(new Phrase("姓名", font)));
		table.addCell(new PdfPCell(new Phrase("性别", font)));
		table.addCell(new PdfPCell(new Phrase("电话", font)));
		table.addCell(new PdfPCell(new Phrase("地址", font)));
		table.addCell(new PdfPCell(new Phrase("身份证", font)));

		for (PdfPRow row : (ArrayList<PdfPRow>) table.getRows()) {
			for (PdfPCell cells : row.getCells()) {
				if (cells != null) {
					cells.setPadding(6.0f);

				}
			}
		}

		for (int i = 0; i < 60; i++) {
			table.addCell(new Paragraph("Name(CN)", font));
			table.addCell(new Paragraph("党宁生", font));
			table.addCell(new Paragraph("Name(EN)", font));
			table.addCell(new Paragraph("DANG NING SHENG", font));
			table.addCell(new Paragraph("DANG NING SHENG", font));
			table.addCell(new Paragraph("DANG NING SHENG ,Tian 广东省天河区天河北路898号",font));
		}

		//table.addCell(String.format("page %d of", writer.getPageNumber()));
		//

		// document.add(new Paragraph ("===============================",font));
		// document.addHeader("999999999999","0000000000000000");

		Paragraph title = new Paragraph("起租通知书", titleFont);// 抬头
		title.setAlignment(Element.ALIGN_CENTER); // 居中设置
		title.setLeading(2f);// 设置行间距

		Paragraph title2 = new Paragraph("      ", font);// 抬头
		title2.setAlignment(Element.ALIGN_CENTER); // 居中设置
		// title.setLeading(1f);//设置行间距//设置上面空白宽度
		title2.setLeading(2f);// 设置行间距
		document.add(title);
		document.add(title2);

		document.add(table);

		// 如果不设置 空白页无法单独显示
		writer.setPageEmpty(false);
		// }
		document.close();
	}

	private void setFooter(PdfWriter writer) throws DocumentException,
			IOException {
		// HeaderFooter headerFooter = new HeaderFooter(this);
		// 更改事件,瞬间变身 第几页/共几页 模式。
		PdfReportM1HeaderFooter headerFooter = new PdfReportM1HeaderFooter();// 就是上面那个类
		writer.setBoxSize("art", PageSize.A4);
		writer.setPageEvent(headerFooter);
	}

	public int getPageHeight() {
		return pageHeight;
	}

	public void setPageHeight(int pageHeight) {
		this.pageHeight = pageHeight;
	}

	public int getPageWidth() {
		return pageWidth;
	}

	public void setPageWidth(int pageWidth) {
		this.pageWidth = pageWidth;
	}

	public static void main(String[] args) throws Exception {
		PDFBuilder builder = new PDFBuilder();
//		builder.setPageHeight(800);
//		builder.setPageWidth(600);
		builder.setPageHeight((int)PageSize.A4.getWidth());
		builder.setPageWidth((int)PageSize.A4.getWidth());	
		
		System.out.println("===Width======"+PageSize.A4.getWidth());
		System.out.println("===Height======"+PageSize.A4.getHeight());
		
		builder.generatePDF();
	}
}

 

 

import java.io.IOException;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfTemplate;
import com.itextpdf.text.pdf.PdfWriter;

/**
 * ClassName:PdfReportM1HeaderFooter <br/>
 */
public class PdfReportM1HeaderFooter extends PdfPageEventHelper {

	/**
	 * 页眉
	 */
	public String header = "";

	/**
	 * 文档字体大小,页脚页眉最好和文本大小一致
	 */
	public int presentFontSize = 12;

	/**
	 * 文档页面大小,最好前面传入,否则默认为A4纸张
	 */
	public Rectangle pageSize = PageSize.A4;

	// 模板
	public PdfTemplate total;

	// 基础字体对象
	public BaseFont bf = null;

	// 利用基础字体生成的字体对象,一般用于生成中文文字
	public Font fontDetail = null;

	/**
	 * 
	 * Creates a new instance of PdfReportM1HeaderFooter 无参构造方法.
	 * 
	 */
	public PdfReportM1HeaderFooter() {

	}

	/**
	 * 
	 * Creates a new instance of PdfReportM1HeaderFooter 构造方法.
	 * 
	 * @param yeMei
	 *            页眉字符串
	 * @param presentFontSize
	 *            数据体字体大小
	 * @param pageSize
	 *            页面文档大小,A4,A5,A6横转翻转等Rectangle对象
	 */
	public PdfReportM1HeaderFooter(String yeMei, int presentFontSize,
			Rectangle pageSize) {
		this.header = yeMei;
		this.presentFontSize = presentFontSize;
		this.pageSize = pageSize;
	}

	public void setHeader(String header) {
		this.header = header;
	}

	public void setPresentFontSize(int presentFontSize) {
		this.presentFontSize = presentFontSize;
	}

	/**
	 * 
	 * TODO 文档打开时创建模板
	 * 
	 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onOpenDocument(com.itextpdf.text.pdf.PdfWriter,
	 *      com.itextpdf.text.Document)
	 */
	public void onOpenDocument(PdfWriter writer, Document document) {
		total = writer.getDirectContent().createTemplate(50, 50);// 共 页 的矩形的长宽高
	}

	/**
	 * 
	 * TODO 关闭每页的时候,写入页眉,写入'第几页共'这几个字。
	 * 
	 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onEndPage(com.itextpdf.text.pdf.PdfWriter,
	 *      com.itextpdf.text.Document)
	 */
	public void onEndPage(PdfWriter writer, Document document) {

		try {
			if (bf == null) {
				bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", false);
			}
			if (fontDetail == null) {
				fontDetail = new Font(bf, presentFontSize, Font.NORMAL);// 数据体字体
			}
		} catch (DocumentException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		// 1.写入页眉
		ColumnText.showTextAligned(writer.getDirectContent(),
				Element.ALIGN_LEFT, new Phrase(header, fontDetail),
				document.left(), document.top() + 20, 0);

		// 2.写入前半部分的 第 X页/共
		int pageS = writer.getPageNumber();
		String foot1 = "第 " + pageS + " 页 /共";
		Phrase footer = new Phrase(foot1, fontDetail);

		// 3.计算前半部分的foot1的长度,后面好定位最后一部分的'Y页'这俩字的x轴坐标,字体长度也要计算进去 = len
		float len = bf.getWidthPoint(foot1, presentFontSize);

		// 4.拿到当前的PdfContentByte
		PdfContentByte cb = writer.getDirectContent();

		// 5.写入页脚1,x轴就是(右margin+左margin + right() -left()- len)/2.0F
		// 再给偏移20F适合人类视觉感受,否则肉眼看上去就太偏左了
		// ,y轴就是底边界-20,否则就贴边重叠到数据体里了就不是页脚了;注意Y轴是从下往上累加的,最上方的Top值是大于Bottom好几百开外的。
		ColumnText
				.showTextAligned(
						cb,
						Element.ALIGN_CENTER,
						footer,
						(document.rightMargin() + document.right()
								+ document.leftMargin() - document.left() - len) / 2.0F + 20F,
						document.bottom() - 20, 0);

		// 6.写入页脚2的模板(就是页脚的Y页这俩字)添加到文档中,计算模板的和Y轴,X=(右边界-左边界 - 前半部分的len值)/2.0F +
		// len , y 轴和之前的保持一致,底边界-20
		cb.addTemplate(total, (document.rightMargin() + document.right()
				+ document.leftMargin() - document.left()) / 2.0F + 20F,
				document.bottom() - 20); // 调节模版显示的位置

	}

	/**
	 * 
	 * TODO 关闭文档时,替换模板,完成整个页眉页脚组件
	 * 
	 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onCloseDocument(com.itextpdf.text.pdf.PdfWriter,
	 *      com.itextpdf.text.Document)
	 */
	public void onCloseDocument(PdfWriter writer, Document document) {
		// 7.最后一步了,就是关闭文档的时候,将模板替换成实际的 Y 值,至此,page x of y 制作完毕,完美兼容各种文档size。
		total.beginText();
		total.setFontAndSize(bf, presentFontSize);// 生成的模版的字体、颜色
		String foot2 = " " + (writer.getPageNumber() - 1) + " 页";
		total.showText(foot2);// 模版显示的内容
		total.endText();
		total.closePath();
	}
}

 

 

 http://my.oschina.net/u/203582/blog/121838

 

http://www.myexception.cn/powerdesigner/1405826.html

 

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