1、添加Gradle依赖
如图所示添加itextpdf 7.2.4核心包依赖，implementation 'com.itextpdf:itext7-core:7.2.4'，'com.itextpdf:html2pdf:5.0.0'为HTML转PDF，业务需要则添加。
2、创建PDF
A、生成PDF文件到本地
@GetMapping("createPDF")
public void createPDF(HttpServletResponse response){
String fileName= fileNameEncode("病案首页");
//创建字节输出流
ByteArrayOutputStream byteArrayOutputStream=new ByteArrayOutputStream();
try {
//初始化PDF
initPDF(fileName,byteArrayOutputStream);
FileOutputStream fileOutputStream=new FileOutputStream("C:\\Users\\DJW\\Desktop\\1.pdf");
fileOutputStream.write(byteArrayOutputStream.toByteArray());
fileOutputStream.flush();
byteArrayOutputStream.close();
fileOutputStream.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}B、返回PDF字节流
@GetMapping("createPDF")
public void createPDF(HttpServletResponse response){
String fileName= fileNameEncode("病案首页");
response.setHeader("Access-Control-Allow-Origin","*");
//设置响应内容为PDF
response.setContentType("application/pdf;charset=UTF-8");
//设置文件名称
response.setHeader("Content-Disposition", "inline;filename="+fileName+".pdf");
//创建字节输出流
ByteArrayOutputStream byteArrayOutputStream=new ByteArrayOutputStream();
//初始化PDF
initPDF(fileName,byteArrayOutputStream);
try {
response.getOutputStream().write(byteArrayOutputStream.toByteArray());
byteArrayOutputStream.flush();
byteArrayOutputStream.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}1、初始化PDF，创建PDF的Document，设置PDF标题、作者等信息。
CUSTOM_SONGTI_FONT为引用的字体路径，如图所示：
void initPDF(String pdfTitle,ByteArrayOutputStream byteArrayOutputStream){
//创建PDF写入流对象
PdfWriter pdfWriter=new PdfWriter(byteArrayOutputStream);
//创建PDF文档
PdfDocument pdfDocument=new PdfDocument(pdfWriter);
//获取pdf文档信息
PdfDocumentInfo pdfDocumentInfo= pdfDocument.getDocumentInfo();
//设置pdf的标题
pdfDocumentInfo.setTitle(fileNameDecode(pdfTitle));
//设置pdf作者
pdfDocumentInfo.setAuthor("丁家伟");
//创建文档对象
Document document=new Document(pdfDocument);
pdfDocument.setDefaultPageSize(PageSize.A4);
//添加水印
pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE,new WaterMarkEventHandler(WATER_MARK_TEXT));
//添加页码
pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE, new PageEventHandler());
//整个文档设置中文字体支持
FontSet fontSet=new FontSet();
//ttc字体必须加，0
fontSet.addFont(CUSTOM_SONGTI_FONT+",0");
FontProvider fontProvider=new FontProvider(fontSet);
document.setFontProvider(fontProvider);
//文档设置全局字体：宋体
document.setFontFamily("SIMSUN");
//pdfFontSongTi = PdfFontFactory.createFont("STSongStd-Light", "UniGB-UCS2-H", pdfDocument);
writePDF(document, pdfDocument);
//组建PDF
try {
document.close();
pdfWriter.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}2、编辑PDF段落
void writePDF(Document document,PdfDocument pdfDocument) {
//在pdf文档中添加1个A4纸大小的页面
pdfDocument.addNewPage(PageSize.A4);
//机构标题
Paragraph paragraph0=new Paragraph("XXXXXXX医院");
Paragraph paragraph1=new Paragraph("门诊病历");
paragraph0.setMultipliedLeading(1.0f);
paragraph1.setMultipliedLeading(1.0f);
paragraph0.addStyle(PdfStyle.titleStyle());
paragraph1.addStyle(PdfStyle.titleStyle());
document.add(paragraph0);
document.add(paragraph1);
//姓名、性别、年龄
Paragraph basicInfoP1=new Paragraph();
basicInfoP1.setMultipliedLeading(1.0f);
basicInfoP1.addStyle(PdfStyle.percent100Style());
Paragraph rowP11=new Paragraph();
rowP11.setMultipliedLeading(1.0f);
rowP11.addStyle(PdfStyle.col3Style());
Text t11Left=new Text("姓名：");
Text t11Right=new Text("测试");
t11Right.addStyle(PdfStyle.resultStyle());
rowP11.add(t11Left);
rowP11.add(t11Right);
Paragraph rowP12=new Paragraph();
rowP12.setMultipliedLeading(1.0f);
rowP12.addStyle(PdfStyle.col3Style());
Text t12Left=new Text("年龄：");
Text t12Right=new Text("38岁");
t12Right.addStyle(PdfStyle.resultStyle());
rowP12.add(t12Left);
rowP12.add(t12Right);
Paragraph rowP13=new Paragraph();
rowP13.setMultipliedLeading(1.0f);
rowP13.addStyle(PdfStyle.col3Style());
Text t13Left=new Text("性别：");
Text t13Right=new Text("女");
t13Right.addStyle(PdfStyle.resultStyle());
rowP13.add(t13Left);
rowP13.add(t13Right);
basicInfoP1.setMultipliedLeading(1.0f);
basicInfoP1.add(rowP11);
basicInfoP1.add(rowP12);
basicInfoP1.add(rowP13);
document.add(basicInfoP1);
//就诊号 就诊科室 就诊日期
Paragraph basicInfoP2=new Paragraph();
basicInfoP2.setMultipliedLeading(1.0f);
basicInfoP2.addStyle(PdfStyle.percent100Style());
Paragraph rowP21=new Paragraph();
rowP21.addStyle(PdfStyle.col3Style());
Text t21Left=new Text("病历号：");
Text t21Right=new Text("2403010000541");
t21Right.addStyle(PdfStyle.resultStyle());
rowP21.add(t21Left);
rowP21.add(t21Right);
Paragraph rowP22=new Paragraph();
rowP22.addStyle(PdfStyle.col3Style());
Text t22Left=new Text("就诊科室：");
Text t22Right=new Text("肛肠科");
t22Right.addStyle(PdfStyle.resultStyle());
rowP22.add(t22Left);
rowP22.add(t22Right);
Paragraph rowP23=new Paragraph();
rowP23.addStyle(PdfStyle.col3Style());
Text t23Left=new Text("就诊时间：");
Text t23Right=new Text("2024-03-01 15:17:18");
t23Right.addStyle(PdfStyle.resultStyle());
rowP23.add(t23Left);
rowP23.add(t23Right);
basicInfoP2.setMultipliedLeading(1.0f);
basicInfoP2.add(rowP21);
basicInfoP2.add(rowP22);
basicInfoP2.add(rowP23);
document.add(basicInfoP2);
//诊断
Paragraph basicInfoP3=new Paragraph();
basicInfoP3.setMultipliedLeading(1.0f);
basicInfoP3.addStyle(PdfStyle.percent100Style());
Text t31=new Text("");
t31.setText("诊断：混合痔；肛周脓肿；");
basicInfoP3.add(t31);
document.add(basicInfoP3);
//主要内容
Paragraph paragraphMain=new Paragraph();
paragraphMain.addStyle(PdfStyle.mainStyle());
//设置上边框
Border mainTopBorder=new SolidBorder(0.5f);
paragraphMain.setBorderTop(mainTopBorder);
//编辑主要内容
Paragraph zsParagraph=new Paragraph();
zsParagraph.setMultipliedLeading(1.0f);
Text zsParagraphTitle=new Text("主诉：");
zsParagraphTitle.setBold();
Text zsParagraphContent=new Text("患者诉3天前和朋友在海底捞火锅店就餐，要求店家上了特特特辣锅，就餐完毕回家突感胃疼，且腹泻，大便糖稀，且带血，随即前往药店购买马应龙痔疮膏涂抹无效，今日来我院肛肠科就诊。");
zsParagraph.add(zsParagraphTitle);
zsParagraph.add(zsParagraphContent);
paragraphMain.add(zsParagraph);
//现病史
Paragraph xbsParagraph=new Paragraph();
xbsParagraph.setMultipliedLeading(1.0f);
Text xbsParagraphTitle=new Text("现病史：");
xbsParagraphTitle.setBold();
Text xbsParagraphContent=new Text("腹泻，肛门疼痛。");
xbsParagraph.add(xbsParagraphTitle);
xbsParagraph.add(xbsParagraphContent);
paragraphMain.add(xbsParagraph);
//体格检查
Paragraph ctParagraph=new Paragraph();
ctParagraph.setMultipliedLeading(1.0f);
Text ctParagraphTitle=new Text("体格检查：");
ctParagraphTitle.setBold();
Text ctParagraphContent=new Text("℃p82次/分r21次/分bp220/110mmhg。急性病容，步行入院，步态正常，神志清楚，对答切题，。查体合作。皮肤粘膜无黄染、皮疹、出血点。全身浅表淋巴结未触及明显肿大。双侧瞳孔等大等园，直径约2毫米，对光反射及调节均灵敏。口唇无苍白，颊粘膜无破溃，舌苔正常，舌质淡红，伸舌居中，咽充血明显，后壁见滤泡，双侧扁桃体无肿大。双肺呼吸音运动正常，触觉语颤对称，未触及皮下捻发感及胸膜摩擦感，双肺叩诊呈清音，呼吸音粗，双肺未闻及干湿性啰音，无胸膜摩擦音；心前区无隆起，心尖搏动位于左侧第v间锁骨中线内厘米处，未触及震颤，心界无明显扩大，心率82次/分，律齐，各瓣膜听诊区未闻及明显病理性杂音。");
ctParagraph.add(ctParagraphTitle);
ctParagraph.add(ctParagraphContent);
paragraphMain.add(ctParagraph);
//辅助检查
Paragraph fzParagraph=new Paragraph();
fzParagraph.setMultipliedLeading(1.0f);
Text fzParagraphTitle=new Text("辅助检查：");
fzParagraphTitle.setBold();
Text fzParagraphContent=new Text("白细胞∕l中性细胞百分比74％ 淋巴细胞比率％红细胞∕l 血红蛋白140g∕l 血小板15710^9∕l，生化全套 r-谷氨转肽酶59iu∕l 钾∕l 二氧化碳 mmol∕l 阴离子间隙 mmol∕l 尿酸 umol∕l 总胆固醇 mmol∕l 余大致正常。 x线示心影增大。8月3日胸部ct示1两肺下叶炎症伴双侧胸腔少量积液；2心脏增大，左侧冠脉钙化。8月6日电解质钠 mmol∕l。");
fzParagraph.add(fzParagraphTitle);
fzParagraph.add(fzParagraphContent);
paragraphMain.add(fzParagraph);
//既往史
Paragraph jwsParagraph=new Paragraph();
jwsParagraph.setMultipliedLeading(1.0f);
Text jwsParagraphTitle=new Text("既往史：");
jwsParagraphTitle.setBold();
Text jwsParagraphContent=new Text("无。");
jwsParagraph.add(jwsParagraphTitle);
jwsParagraph.add(jwsParagraphContent);
paragraphMain.add(jwsParagraph);
//医生签名
Paragraph doctorSignParagraph=new Paragraph();
doctorSignParagraph.setMarginRight(40f);
doctorSignParagraph.addStyle(PdfStyle.percent100Style());
doctorSignParagraph.setTextAlignment(TextAlignment.RIGHT);
doctorSignParagraph.setMultipliedLeading(1.5f);
Text doctorSignTitle=new Text("医生签名：");
doctorSignTitle.setBold();
doctorSignParagraph.add(doctorSignTitle);
paragraphMain.add(doctorSignParagraph);
document.add(paragraphMain);
}3、通过浏览器调用方法查看效果
