itext生成pdf文件-表格

    生成pdf常用的插件有iReport、和itext，这里将使用itext生成pdf文件。

    多于的话不说直接上demo和需要的jar，如果pdf中有图片要画的话可以用jfreeChart画。

package com.pdf;

import java.awt.Color;
import java.io.File;
import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.Image;
import com.lowagie.text.PageSize;
import com.lowagie.text.Phrase;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfWriter;

public class PDFReport1 {
	int maxWidth = 520;
	private static Font keyfont; // 设置字体大小
	private static Font textfont; // 设置字体大小

	// 建立一个Document对象
	Document document = new Document();

	static {
		BaseFont bfChinese;
		try {
			bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
			keyfont = new Font(bfChinese, 8, Font.BOLD); // 设置字体大小
			textfont = new Font(bfChinese, 8, Font.NORMAL); // 设置字体大小
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * 设置pdf样式
	 * @param file
	 */
	public PDFReport1(File file) {
		// 设置页面大小
		document.setPageSize(PageSize.A4);
		try {
			PdfWriter.getInstance(document, new FileOutputStream(file));
			document.open();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * 添加表格前的说明
	 * @param value
	 * @param font
	 * @param align
	 * @param colspan
	 * @param boderFlag
	 * @return
	 */
	public PdfPCell createCell(String value, com.lowagie.text.Font font, int align, int colspan, boolean boderFlag) {
		PdfPCell cell = new PdfPCell();
		cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
		cell.setHorizontalAlignment(align);
		cell.setColspan(colspan);
		cell.setPhrase(new Phrase(value, font));
		cell.setPadding(3.0f);
		if (!boderFlag) {
			cell.setBorder(0);
			cell.setPaddingTop(15.0f);
			cell.setPaddingBottom(8.0f);
		}
		return cell;
	}
	
	/**
	 * 向单元格添加字符串、设置单元格属性
	 * @param value 字符
	 * @param font	字体
	 * @param align 对齐方式
	 * @return
	 */
	public PdfPCell createCell(String value, com.lowagie.text.Font font, int align) {
		PdfPCell cell = new PdfPCell();
		
		//设置单元格对齐方式
		cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
		cell.setHorizontalAlignment(align);
		cell.setPhrase(new Phrase(value, font));
		
		//设置边框颜色
		cell.setBorderColor(new Color(15, 15, 15));
		//设置单元格背景颜色
		cell.setBackgroundColor(new Color(118, 59, 167));
		return cell;
	}

	/**
	 * 向单元格添加字符串、设置单元格属性
	 * @param value 字符
	 * @param font	字体
	 * @return
	 */
	public PdfPCell createCell(String value, com.lowagie.text.Font font) {
		PdfPCell cell = new PdfPCell();

		cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
		cell.setHorizontalAlignment(Element.ALIGN_CENTER);
		cell.setPhrase(new Phrase(value, font));
		
		cell.setBorderColor(new Color(15, 15, 15));
		cell.setBackgroundColor(new Color(59,162,167));
		return cell;
	}

	
	/**
	 * 向单元格中添加图片
	 * @param image  图片
	 */
	public PdfPCell createCell() {
		PdfPCell cell = new PdfPCell();
		try {
			cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
			cell.setHorizontalAlignment(Element.ALIGN_CENTER);
			
			Image image = Image.getInstance ("D:\\Arrows_Black_InTable_Down.png");
			//设置图片大小
//			image.scaleAbsoluteWidth(7);
//			image.scaleAbsoluteHeight(11);
			image.scaleAbsolute(7,11);
			
			//添加图片
			cell.addElement(image);
			
			//设置边框颜色
			cell.setBorderColor(new Color(15, 15, 15));
			//设置单元格背景颜色
			cell.setBackgroundColor(new Color(59,162,167));
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		return cell;
	}
	
	
	public PdfPCell createCell(String value, com.lowagie.text.Font font, int align, int colspan) {
		PdfPCell cell = new PdfPCell();
		cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
		cell.setHorizontalAlignment(align);
		cell.setColspan(colspan);
		cell.setPhrase(new Phrase(value, font));
		return cell;
	}

	
	public PdfPTable createTable(int colNumber) {
		PdfPTable table = new PdfPTable(colNumber);
		try {
			table.setTotalWidth(maxWidth);
			table.setLockedWidth(true);
			table.setHorizontalAlignment(Element.ALIGN_CENTER);
			table.getDefaultCell().setBorder(1);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return table;
	}

	public PdfPTable createTable(float[] widths) {
		PdfPTable table = new PdfPTable(widths);
		try {
			table.setTotalWidth(maxWidth);
			table.setLockedWidth(true);
			table.setHorizontalAlignment(Element.ALIGN_CENTER);
			table.getDefaultCell().setBorder(1);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return table;
	}

	public PdfPTable createBlankTable() {
		PdfPTable table = new PdfPTable(1);
		table.getDefaultCell().setBorder(0);
		table.addCell(createCell("", keyfont));
		table.setSpacingAfter(20.0f);
		table.setSpacingBefore(20.0f);
		return table;
	}

	public void generatePDF() throws Exception {
		PdfPTable table = createTable(5);
		table.addCell(createCell("学生信息列表：", keyfont, Element.ALIGN_LEFT, 5, false));
		
		table.addCell(createCell("姓名", keyfont, Element.ALIGN_CENTER));
		table.addCell(createCell("年龄", keyfont, Element.ALIGN_CENTER));
		table.addCell(createCell("性别", keyfont, Element.ALIGN_CENTER));
		table.addCell(createCell("住址", keyfont, Element.ALIGN_CENTER));
		table.addCell(createCell("升降", keyfont, Element.ALIGN_CENTER));
		
		for (int i = 0; i < 5; i++) {
			table.addCell(createCell("姓名" + i, textfont));
			table.addCell(createCell(i + 15 + "", textfont));
			table.addCell(createCell((i % 2 == 0) ? "男" : "女", textfont));
			table.addCell(createCell("地址" + i, textfont));
			
			//添加图片
			table.addCell(createCell());
		}
		document.add(table);

		document.close();
	}

	public static void main(String[] args) throws Exception {
		File file = new File("D:\\text.pdf");
		file.createNewFile();
		new PDFReport1(file).generatePDF();
	}
}