Java生产Pdf文件，注意事项（坑）

最近，在项目中遇到了这样的需求，将数据库中的数据导出为pdf文件。最初的路线是先使用Word生成表格模板，另存为pdf文件，再用Adobe Acrobat X Pro打开该pdf文件，添加Form域并保存生成pdf模板。使用iText向pdf模板写入数据，并生成最终的pdf文件。但遇到了以下问题：
1、向某text Form域写入多个汉字，但仅仅显示少数几个汉字，没有显示全，Form域的长度也修改了，没有效果；
2、明明设置了宋体，但就是不起作用，还显示为默认字体；

后改为直接使用iText生成pdf，单元测试很顺利，但集成到SpringMVC4中，启动Tomcat报错：

Caused by: java.lang.IllegalStateException: Unable to complete the scan for annotations for web application [] due to a StackOverflowError. Possible root causes include a too low setting for -Xss and illegal cyclic inheritance dependencies. The class hierarchy being processed was [org.bouncycastle.asn1.ASN1Boolean->org.bouncycastle.asn1.DERBoolean->org.bouncycastle.asn1.ASN1Boolean]

在Idea中搜索类ASN1Boolean，发现itext-asian-5.2.0.jar里居然拷贝了bcprov-jdk15on相关的代码，太混乱了。排除其他bcprov-jdk15on，仅仅保留itext-asian-5.2.0.jar，业务关联的微信小程序里“微信授权登录”功能有异常。索性还原bcprov-jdk15on，删除itext-asian-5.2.0.jar，将操作系统下的字体文件拷贝到Web项目里，关键pom.xml如下：

<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.13</version>
</dependency>
<!--
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
-->

大致的业务描述：将用户在Web页面输入的简历信息（包括个人基本信息、求职期望、工作经历、教育经历、技能标签、公司的Logo和Slogan）生成pdf文件，核心代码如下：

import com.itextpdf.text.*;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.*;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.util.List;
@Service
public class ZuiResume2PdfServiceImpl {
private static final Logger LOG = LoggerFactory.getLogger(ZuiResume2PdfServiceImpl.class);
private BaseFont bfChinese = null;
{
try {
// 因为jar包冲突，不再使用itext-asian-5.2.0.jar
//bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
String webInfPath = Thread.currentThread().getContextClassLoader().getResource("").getPath();
LOG.debug("###### WEB-INF absolutePath=" + webInfPath);
webInfPath = webInfPath.replace("WEB-INF/classes/", "WEB-INF/");
LOG.debug("###### WEB-INF absolutePath02=" + webInfPath);
// simfang.ttf拷贝自win10系统
bfChinese = BaseFont.createFont(webInfPath + "simfang.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
} catch (DocumentException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private int MINI_CELL_HEIGHT = 10;
private Font titleChinese = new Font(bfChinese, 20, Font.BOLD);
private Font secondtitleChinese = new Font(bfChinese, 12, Font.BOLD);
private Font fontChinese = new Font(bfChinese, 8, Font.NORMAL);
/**
* 业务入口
*/
public void generatePdf(BaseInfoVO baseInfo, ExpectVO expect, List<WokExperienceVO> workExperienceList,
List<TEducation> eduExperienceList, List<String> specList, File localTempFile) throws Throwable {
LOG.debug("###### baseInfo="
+ ToStringBuilder.reflectionToString(baseInfo, ToStringStyle.MULTI_LINE_STYLE));
LOG.debug("###### expect="
+ ToStringBuilder.reflectionToString(expect, ToStringStyle.MULTI_LINE_STYLE));
for (WokExperienceVO workExp : workExperienceList) {
LOG.debug("###### workExpList[i]=" + ToStringBuilder.reflectionToString(workExp, ToStringStyle.MULTI_LINE_STYLE));
}
for (TEducation edu : eduExperienceList) {
LOG.debug("###### eduExpList[i]="
+ ToStringBuilder.reflectionToString(edu, ToStringStyle.MULTI_LINE_STYLE));
}
for (String tag : specList) {
LOG.debug("###### specList[i]="
+ tag);
}
Assert.notNull(bfChinese, "字体为空");
//A4横向
Document document = new Document(PageSize.A4);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PdfWriter writer = PdfWriter.getInstance(document, baos);
document.open();
// 文档标题
Paragraph title = new Paragraph("文档标题", titleChinese);
title.setAlignment(Element.ALIGN_CENTER);
document.add(title);
buildBaseInfoTable(baseInfo, document);
buildExpectTable(expect, document);
buildWorkExperience(workExperienceList, document);
buildEduExperience(eduExperienceList, document);
buildSpecialityTags(specList, document);
buildLogoSlogan(document);
document.close();
baos.writeTo(new FileOutputStream(localTempFile));
}
private void buildLogoSlogan(Document document) throws IOException, DocumentException {
// 应用的Logo和标语
float[] widths04 = {2f, 2f, 2f, 2f, 2f, 2f, 2f, 24f};
PdfPTable table06 = new PdfPTable(widths04);
table06.setSpacingBefore(5f);
table06.setWidthPercentage(90);
//不显示边框
table06.getDefaultCell().setBorderWidth(0);
//垂直居中
table06.setHorizontalAlignment(Element.ALIGN_CENTER);
PdfPCell nullCell = new PdfPCell(new Paragraph(""));
nullCell.setBorderWidth(0);
table06.addCell(nullCell);
table06.addCell(nullCell);
table06.addCell(nullCell);
table06.addCell(nullCell);
table06.addCell(nullCell);
table06.addCell(nullCell);
String webInfPath = Thread.currentThread().getContextClassLoader().getResource("").getPath();
LOG.debug("###### 2WEB-INF absolutePath=" + webInfPath);
webInfPath = webInfPath.replace("WEB-INF/classes/", "WEB-INF/");
LOG.debug("###### 2WEB-INF absolutePath02=" + webInfPath);
Image logo = Image.getInstance(webInfPath + "favicon.png");
//logo.setAbsolutePosition(200, 0);
logo.setAlignment(Element.ALIGN_CENTER);
logo.scaleAbsolute(30, 30);
//logo.scalePercent(50, 50);
logo.setRotation(0);
table06.addCell(logo);
PdfPCell slogan = new PdfPCell(new Paragraph("华为手机：手机中的战斗机，欧耶！", fontChinese));
slogan.setVerticalAlignment(PdfPCell.ALIGN_MIDDLE);
slogan.setBorderWidth(0);
table06.addCell(slogan);
document.add(table06);
}
private void buildSpecialityTags(List<String> specList, Document document) throws DocumentException {
PdfPCell cell;// 最多5个Cell。注意：即使没有，也要输出空字符串！！！！！！！！！！！
Paragraph tableName05 = new Paragraph("技能标签", secondtitleChinese);
tableName05.setAlignment(Element.ALIGN_CENTER);
tableName05.setSpacingBefore(10f);
document.add(tableName05);
float[] widths02 = {24f, 24f, 24f, 24f, 24f};
PdfPTable table05 = new PdfPTable(widths02);
table05.setSpacingBefore(5f);
table05.setWidthPercentage(90);
for (String tag : specList) {
cell = new PdfPCell(new Paragraph(tag, fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table05.addCell(cell);
}
document.add(table05);
}
private void buildEduExperience(List<TEducation> eduExperienceList, Document document) throws DocumentException {
PdfPCell cell;// 表名4，教育经历，一个表格，可能有0-5行
Paragraph tableName04 = new Paragraph("教育经历", secondtitleChinese);
tableName04.setAlignment(Element.ALIGN_CENTER);
tableName04.setSpacingBefore(10f);
document.add(tableName04);
float[] widths02 = {24f, 24f, 24f, 24f, 24f};
PdfPTable table04 = new PdfPTable(widths02);
table04.setSpacingBefore(5f);
table04.setWidthPercentage(90);
// 第一行，表头
cell = new PdfPCell(new Paragraph("学校名称", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph("所学专业", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph("学历", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph("开始时间", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph("结束时间", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
for (TEducation edu : eduExperienceList) {
cell = new PdfPCell(new Paragraph(edu.getCollegeName(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph(edu.getMajor(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph(edu.getEduBackground(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph(edu.getStartDate(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
cell = new PdfPCell(new Paragraph(edu.getEndDate(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table04.addCell(cell);
}
document.add(table04);
}
private void buildWorkExperience(List<WokExperienceVO> workExperienceList, Document document) throws DocumentException {
PdfPCell cell;// 表名3，工作经历可能有0-5个表格
float[] widths = {20f, 40f, 20f, 40f};
Paragraph tableName03 = new Paragraph("工作经历", secondtitleChinese);
tableName03.setAlignment(Element.ALIGN_CENTER);
tableName03.setSpacingBefore(10f);
document.add(tableName03);
for (WokExperienceVO workExp : workExperienceList) {
PdfPTable table03i = new PdfPTable(widths);
table03i.setSpacingBefore(5f);
table03i.setWidthPercentage(90);
// 第一行
cell = new PdfPCell(new Paragraph("公司名称", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
cell = new PdfPCell(new Paragraph(workExp.getCompName(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
cell = new PdfPCell(new Paragraph("职位", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
cell = new PdfPCell(new Paragraph(workExp.getMyPosition(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
// 第二行
cell = new PdfPCell(new Paragraph("开始时间", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
cell = new PdfPCell(new Paragraph(workExp.getEntryDate(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
cell = new PdfPCell(new Paragraph("结束时间", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
cell = new PdfPCell(new Paragraph(workExp.getLeaveDate(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
// 第三行
cell = new PdfPCell(new Paragraph("工作内容", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table03i.addCell(cell);
cell = new PdfPCell(new Paragraph(workExp.getWorkContent(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setColspan(3);
table03i.addCell(cell);
document.add(table03i);
}
}
private void buildExpectTable(ExpectVO expect, Document document) throws DocumentException {
PdfPCell cell;
float[] widths = {20f, 40f, 20f, 40f};
// 建立一个pdf表格
PdfPTable table02 = new PdfPTable(widths);
table02.setSpacingBefore(5f);
// 设置表格宽度为100%
table02.setWidthPercentage(90);
// 表名2
Paragraph tableName02 = new Paragraph("求职意向", secondtitleChinese);
tableName02.setAlignment(Element.ALIGN_CENTER);
tableName02.setSpacingBefore(10f);
document.add(tableName02);
//表名2第一行
cell = new PdfPCell(new Paragraph("期望城市", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
cell = new PdfPCell(new Paragraph(expect.getExCityName(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
cell = new PdfPCell(new Paragraph("期望职位", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
cell = new PdfPCell(new Paragraph(expect.getExPosition(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
//表名2第二行
cell = new PdfPCell(new Paragraph("职位类型", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
cell = new PdfPCell(new Paragraph(expect.getWorkStyleStr(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
cell = new PdfPCell(new Paragraph("期望月薪", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
cell = new PdfPCell(new Paragraph(expect.getExMonthMoneyStr(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table02.addCell(cell);
document.add(table02);
}
private void buildBaseInfoTable(BaseInfoVO baseInfo, Document document) throws DocumentException {
// 表名1
Paragraph tableName01 = new Paragraph("基本信息", secondtitleChinese);
tableName01.setAlignment(Element.ALIGN_CENTER);
tableName01.setSpacingBefore(10f);
document.add(tableName01);
// 设置表格的列宽和列数
float[] widths = {20f, 40f, 20f, 40f};
// 建立一个pdf表格
PdfPTable table01 = new PdfPTable(widths);
table01.setSpacingBefore(5f);
// 设置表格宽度为100%
table01.setWidthPercentage(90);
PdfPCell cell = null;
//表名1第一行
cell = new PdfPCell(new Paragraph("姓名", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getRealName(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph("性别", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getSexStr(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
//表名1第二行
cell = new PdfPCell(new Paragraph("出生年月", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getBirthDate(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph("最高学历", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getHighestTechStr(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
//表名1第三行
cell = new PdfPCell(new Paragraph("工作年限", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getWorkYearStr(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph("当前状态", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getMyStateStr(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
//表名1第四行
cell = new PdfPCell(new Paragraph("手机号码", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getPhoneNum(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph("个人邮箱", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getEmail(), fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
//表名1第五行
cell = new PdfPCell(new Paragraph("介绍自己", fontChinese));
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
cell = new PdfPCell(new Paragraph(baseInfo.getMyDesc(), fontChinese));
cell.setColspan(3);
cell.setMinimumHeight(MINI_CELL_HEIGHT);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
table01.addCell(cell);
document.add(table01);
}
}

最后

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