1、导入需要的jar包：itext-asian-5.2.0.jar itextpdf-5.5.11.jar。
2、新建word文档，创建模板，将文件另存为pdf，并用Adobe Acrobat DC打开编辑，点击右侧【准备表单】后点击【开始】
3、在需要插入数据的空白处，右击，点击【文本域】，将文本域拖放到你想要的位置，更改域名称为你传入的变量名。
4、保存文件，将文件放到项目中。生成pdf代码如下：
public static void creatPdf(Map<String, Object> map,String filePath) {
try {
BaseFont bf = BaseFont.createFont("c://windows//fonts//simsun.ttc,1", BaseFont.IDENTITY_H,
BaseFont.EMBEDDED);
FileOutputStream out = new FileOutputStream(filePath);// 输出流
PdfReader reader = new PdfReader(TemplateToWord.class.getResource("/com/cn/business/templates/report.pdf"));// 读取pdf模板
ByteArrayOutputStream bos = new ByteArrayOutputStream();
PdfStamper stamper = new PdfStamper(reader, bos);
stamper.setFormFlattening(true);
AcroFields form = stamper.getAcroFields();
// 文字类的内容处理
Map<String, String> datemap = (Map<String, String>) map.get("datemap");
form.addSubstitutionFont(bf);
for (String key : datemap.keySet()) {
String value = datemap.get(key);
form.setField(key, value);
}
// 图片类的内容处理
Map<String, String> imgmap = (Map<String, String>) map.get("imgmap");
for (String key : imgmap.keySet()) {
String value = imgmap.get(key);
String imgpath = value;
int pageNo = form.getFieldPositions(key).get(0).page;
Rectangle signRect = form.getFieldPositions(key).get(0).position;
float x = signRect.getLeft();
float y = signRect.getBottom();
// 根据路径读取图片
Image image = Image.getInstance(imgpath);
// 获取图片页面
PdfContentByte under = stamper.getOverContent(pageNo);
// 图片大小自适应
image.scaleToFit(signRect.getWidth(), signRect.getHeight());
// 添加图片
image.setAbsolutePosition(x, y);
under.addImage(image);
}
// 表格类
Map<String, List<List<String>>> listMap = (Map<String, List<List<String>>>) map.get("list");
for (String key : listMap.keySet()) {
List<List<String>> lists = listMap.get(key);
int pageNo = form.getFieldPositions(key).get(0).page;
PdfContentByte pcb = stamper.getOverContent(pageNo);
Rectangle signRect = form.getFieldPositions(key).get(0).position;
//表格位置
int column = lists.get(0).size();
int row = lists.size();
PdfPTable table = new PdfPTable(column);
float tatalWidth = signRect.getRight() - signRect.getLeft() - 1;
int size = lists.get(0).size();
float width[] = new float[size];
for(int i=0;i<size;i++){
if(i==0){
width[i]=60f;
}else{
width[i]=(tatalWidth-60)/(size-1);
}
}
table.setTotalWidth(width);
table.setLockedWidth(true);
table.setKeepTogether(true);
table.setSplitLate(false);
table.setSplitRows(true);
Font FontProve = new Font(bf, 10, 0);
//表格数据填写
for(int i=0;i<row;i++){
List<String> list = lists.get(i);
for(int j=0;j<column;j++){
Paragraph paragraph = new Paragraph(String.valueOf(list.get(j)), FontProve);
PdfPCell cell = new PdfPCell(paragraph);
cell.setBorderWidth(1);
cell.setVerticalAlignment(Element.ALIGN_CENTER);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setLeading(0, (float) 1.4);
table.addCell(cell);
}
}
table.writeSelectedRows(0, -1, signRect.getLeft(), signRect.getTop(), pcb);
}
stamper.setFormFlattening(true);// 如果为false，生成的PDF文件可以编辑，如果为true，生成的PDF文件不可以编辑
stamper.close();
Document doc = new Document();
PdfCopy copy = new PdfCopy(doc, out);
doc.open();
int pageNum = reader.getNumberOfPages();
for(int i = 1;i <= pageNum;i++){
PdfImportedPage importPage = copy.getImportedPage(new PdfReader(bos.toByteArray()), i);
copy.addPage(importPage);
}
doc.close();
} catch (IOException e) {
System.out.println(e);
} catch (DocumentException e) {
System.out.println(e);
}
}
参数：
//文字类
Map<String, String> dataMap = new HashMap<String, String>();
dataMap.put("title", title+time); //图片
String knowImgPath = "D:\\upload\\report\\knowImg.png";
Map<String, String> imgMap = new HashMap<String, String>();
imgMap.put("knowImg", knowImgPath); //表格 一行数据是一个list
List<String> list = new ArrayList<String>();
list.add("日期");
list.add("金额"); List<String> list2 = new ArrayList<String>();
list2.add("2018-01-01");
list2.add("100"); List<List<String>> List = new ArrayList<List<String>>();
List.add(list);
List.add(list2); Map<String, List<List<String>>> listMap = new HashMap<String, List<List<String>>>();
listMap.put("eventList", List); Map<String, Object> o = new HashMap<String, Object>();
o.put("datemap", dataMap);
o.put("imgmap", imgMap);
o.put("list", listMap); String knowImgPath = "D:\\upload\\report\\report.pdf";
creatPdf(o,filePath);