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2Paragraph 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1Paragraph 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);}
}

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