iText实现导出pdf文件java代码实现例子

///////////////////////////////////主类//////////////////////////////////////////

package com.iText;

import java.io.FileOutputStream;

import com.itextpdf.text.Document;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfPTableEvent;
import com.itextpdf.text.pdf.PdfWriter;

public class test2 {
public static void main(String[] args) {

Document document = new Document(PageSize.A4);
try {
BaseFont baseFontChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
Font fontChinese = new Font(baseFontChinese , 16 , Font.BOLD);
Paragraph title = new Paragraph("包间设备使用情况统计报表",fontChinese);
Paragraph title2 = new Paragraph(" ");
//设置标题格式对齐方式
title.setAlignment(Element.ALIGN_CENTER);
PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("F:/a.pdf"));
document.open();
BaseFont _baseFont = BaseFont.createFont("C:/WINDOWS/Fonts/SIMYOU.TTF", BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);

PdfPTable table = new PdfPTable(7);
table.setHeaderRows(1);
PdfPTableEvent event = new AlternatingBackground();
table.setTableEvent(event);

table.getDefaultCell().setMinimumHeight(30);
table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);
table.getDefaultCell().setVerticalAlignment(Element.ALIGN_MIDDLE);
/*int[] a = {18,18,58,68,18,18,18};
_tabGoods.setWidths(a);*/
table.setWidthPercentage(100);
// 添加标题行
//_tabGoods.setHeaderRows(2);
table.addCell(new Paragraph("序号", new Font(_baseFont)));
table.addCell(new Paragraph("商品名称", new Font(_baseFont)));
table.addCell(new Paragraph("自定义码", new Font(_baseFont)));
table.addCell(new Paragraph("规格", new Font(_baseFont)));
table.addCell(new Paragraph("数量", new Font(_baseFont)));
table.addCell(new Paragraph("单价", new Font(_baseFont)));
table.addCell(new Paragraph("小计", new Font(_baseFont)));
String[] _outTrades = {"序号1","商品名称2","自定义码355555","规格4","数量5","单价6","小计7"};
// 将商品销售详细信息加入表格
for(int i = 0; i < 30;) {
table.addCell(String.valueOf((++i)));
table.addCell(new Paragraph(_outTrades[1]+i, new Font(_baseFont)));
table.addCell(new Paragraph(_outTrades[2]+i, new Font(_baseFont)));
table.addCell(new Paragraph(_outTrades[3]+i, new Font(_baseFont)));
table.addCell(new Paragraph(_outTrades[4]+i, new Font(_baseFont)));
table.addCell(new Paragraph(_outTrades[5]+i, new Font(_baseFont)));
table.addCell(new Paragraph(_outTrades[6]+i, new Font(_baseFont)));
}
document.add(title);
document.add(title2);
document.add(table);
document.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}

//////////////////////////////////////////////////////////////////

///////////////////////////相间背景色的事件监听//////////////////////////

package com.iText;

import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfPTableEvent;

public class AlternatingBackground implements PdfPTableEvent {

public void tableLayout(PdfPTable table, float[][] widths, float[] heights, int headerRows, int rowStart, PdfContentByte[] canvases) {

int columns;
Rectangle rect;

//合适的颜色：（235，235，235）
int footer = widths.length - table.getFooterRows();
int header = table.getHeaderRows() - table.getFooterRows();
for (int row = header; row < footer; row += 2) {
columns = widths[row].length - 1;
rect = new Rectangle(widths[row][0], heights[row], widths[row][columns], heights[row + 1]);
rect.setBackgroundColor(new BaseColor(225,225,225));
rect.setBorder(Rectangle.NO_BORDER);
canvases[PdfPTable.BASECANVAS].rectangle(rect);
}
}

}