java 生成pdf文档

<p>
需要导入itext-2.0.6.jar.zip 和itextasian-1.5.2.jar包，asian的是为了支持中文。</p><p>
</p><p>PdfContentByte和Image可以绝对定位。</p>

/**
 * @模块：PDF版培训证书的格式
 * @描述: PDF版培训证书的格式类
 * @作者: Li Yifang
 * @日期: 2016-4-13 下午
 */
package com.pxxy.util;


import java.io.File;
import java.io.FileOutputStream;
import java.text.ParseException;


import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.Image;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
import com.pxxy.pxperson.model.TeacherModel;


public class TeacherPdfFormate {
Document document = new Document();// 建立一个Document对象


private static Font enfont;
private static Font textfont;
static BaseFont bfChinese;
static {


try {


bfChinese = BaseFont.createFont(Constant.MSJDBOLD,
BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);


enfont = new Font(bfChinese, 12, Font.NORMAL);// 设置英文字体大小
textfont = new Font(bfChinese, 15, Font.NORMAL);// 设置字体大小
} catch (Exception e) {
e.printStackTrace();
}
}


public TeacherPdfFormate(File file, TeacherModel model) {
document.setPageSize(PageSize.A4);// 设置页面大小
PdfContentByte cb = null;
PdfWriter writer = null;
try {
writer = PdfWriter
.getInstance(document, new FileOutputStream(file));// 读取文档


document.open();


// 设置时间和证书编号
cb = writer.getDirectContent();


String publishDate = dateFormate(model.getStartTime(),
model.getEmploytype());


if (publishDate != null) {


cb.beginText();
cb.setFontAndSize(bfChinese, 12);// 设置证书编号和日期字体大小


cb.setTextRise(30);// 设置文本上升参数。
cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
"证书编号：" + model.getTcertification(), 190f, 140f, 0);// 设置证书编号
cb.showTextAligned(PdfContentByte.ALIGN_CENTER, publishDate,
435f, 160f, 0);// 设置日期


cb.endText();


}


} catch (Exception e) {
e.printStackTrace();
}


}


public void generatePDF(TeacherModel model) throws Exception {


if (!model.getEmploytype().isEmpty()) {
//5001 特邀 5002 特聘
if (model.getEmploytype().equals("5001")) {
// 设置背景图片
Image img1 = Image.getInstance(Constant.TEACHER1_CERT_IMGPATH);// 特邀背景图片


img1.setAlignment(Image.MIDDLE | Image.UNDERLYING);// 设置图片位置


// img.setBorderWidth(10);
img1.scaleToFit(1130f, 800f);// 大小


document.add(img1);
} else {


Image img2 = Image.getInstance(Constant.TEACHER2_CERT_IMGPATH);// 特聘背景图片
img2.setAlignment(Image.MIDDLE | Image.UNDERLYING);// 设置图片位置


// img.setBorderWidth(10);
img2.scaleToFit(1130f, 800f);// 大小


document.add(img2);
}


// 设置段落
//控制格式
StringBuffer name = new StringBuffer(model.getName());
switch (name.length()) {
case 2:
name = name.append("    ");
name = name.insert(0, "    ");


break;
case 3:
name = name.append("  ");
name = name.insert(0, "  ");


break;
case 4:
name = name.append(" ");
name = name.insert(0, " ");


break;


}


String employType = model.getEmploytype();
if(employType.equals("5001")){
employType = "特邀";
}else{
employType = "特聘";
}

Paragraph content = new Paragraph("兹聘请   " + name.toString()
+ " 为本培训学院      "+ employType  +"讲师", textfont);
content.setAlignment(Element.ALIGN_JUSTIFIED);//左右对齐排列
content.setIndentationLeft(86f);//右移
content.setIndentationRight(83f);//左移
content.setSpacingAfter(3f);//段前高度
content.setSpacingBefore(300f);//段后高度

content.setLeading(24f);//行间距
document.add(content);


Paragraph p = new Paragraph("聘任期限为   "
+ dateFormate(model.getStartTime(), model.getEmploytype())
+ "至"
+ dateFormate(model.getEndTime(), model.getEmploytype()),
textfont);
p.setIndentationLeft(86f);
document.add(p);


Paragraph pe = new Paragraph(
"Mr / Mrs  "
+ model.getNameEn()
+ " is hereby appointed as a distinguished lecture for Continuing Education Base.",
enfont);
pe.setAlignment(Element.ALIGN_JUSTIFIED);
pe.setIndentationLeft(86f);
pe.setIndentationRight(83f);
pe.setSpacingAfter(5f);
pe.setSpacingBefore(13f);
// content.setFirstLineIndent(20);
pe.setLeading(15f);


document.add(pe);


Paragraph pet = new Paragraph("The valid date is from "
+ model.getStartTimeEn() + " to " + model.getEndTimeEn()
+ ".", enfont);
pet.setIndentationLeft(86f);
pet.setSpacingBefore(10f);
document.add(pet);


// 设置二维码
String qrPath = Constant.QRCODE + model.getTcertification()
+ ".jpg";
Image imgQR = Image.getInstance(qrPath);


imgQR.setAlignment(Image.LEFT | Image.CHUNK);// 设置图像的对齐方式。
imgQR.setAbsolutePosition(165f, 192f);// 设置图像的绝对位置
imgQR.scaleAbsolute(57f, 57f);// 直接设置显示尺寸
document.add(imgQR);


document.close();
}
}


// 证书日期处理
public String dateFormate(String date, String teacherType)
throws ParseException {
date = DateParse.DateChange(date);
String[] tempDate = null;
String publishDate = null;
if (date != null) {
tempDate = date.split("-");


/* if (teacherType == "5001") {
publishDate = tempDate[0] + "年" + tempDate[1] + "月"
+ tempDate[2] + "日";
} else {*/
publishDate = tempDate[0] + "年" + tempDate[1] + "月";


/*}*/


}
return publishDate;


}
}