模板制作
制作word模版，${xxxx}是要替换的内容。注意${xxxx}是一个整体，中间不能断开，因为利用 poi 的API程序操作时，判断是否有这个${xxxx}才进行替换。
依赖的包
<dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.15</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.15</version> </dependency>
操作 docx 文件
POI在读写word docx文件时是通过xwpf模块来进行的，其核心是XWPFDocument。一个XWPFDocument代表一个docx文档，其可以用来读docx文档，也可以用来写docx文档。XWPFDocument中主要包含下面这几种对象：
- XWPFParagraph：代表一个段落。
- XWPFRun：代表具有相同属性的一段文本。
- XWPFTable：代表一个表格。
- XWPFTableRow：表格的一行。
- XWPFTableCell：表格对应的一个单元格
具体代码：
/**
* 根据指定的参数值、模板，生成 word 文档
* @param param 需要替换的变量，key值与模板里${xxxx}的xxx一样
* @param template 模板,docx文档
*/
public CustomXWPFDocument generateWord(Map<String, Object> param, String template) {
CustomXWPFDocument doc = null;
try {
OPCPackage pack = POIXMLDocument.openPackage(template);
doc = new CustomXWPFDocument(pack);
if (param != null && param.size() > 0) {
//处理段落
List<XWPFParagraph> paragraphList = doc.getParagraphs();
processParagraphs(paragraphList, param, doc);
//处理表格
Iterator <XWPFTable> it = doc.getTablesIterator();
while (it.hasNext()) {
XWPFTable table = it.next();
List<XWPFTableRow> rows = table.getRows();
for (XWPFTableRow row : rows) {
List<XWPFTableCell> cells = row.getTableCells();
for (XWPFTableCell cell : cells) {
List<XWPFParagraph> paragraphListTable = cell.getParagraphs();
processParagraphs(paragraphListTable, param, doc);
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return doc;
}
/**
* 处理段落
* @param paragraphList
*/
public void processParagraphs(List<XWPFParagraph> paragraphList,Map<String, Object> param,CustomXWPFDocument doc){
if(paragraphList != null && paragraphList.size() > 0){
for(XWPFParagraph paragraph : paragraphList){
List<XWPFRun> runs = paragraph.getRuns();
for (XWPFRun run : runs) {
String text = run.getText(0);
if(text != null){
boolean isSetText = false;
for (Entry<String, Object> entry : param.entrySet()) {
String key = "${"+ entry.getKey() +"}";
if(text.indexOf(key) != -1){
isSetText = true;
Object value = entry.getValue();
if (value instanceof String) {//文本替换
text = text.replace(key, value.toString());
//System.out.println(text);
} else if (value instanceof Double) {
text = text.replace(key, value.toString());
} else if (value instanceof Map) {//图片替换
text = text.replace(key, "");
Map pic = (Map)value;
int width = Integer.parseInt(pic.get("width").toString());
int height = Integer.parseInt(pic.get("height").toString());
int picType = getPictureType(pic.get("type").toString());
byte [] byteArray = (byte[]) pic.get("content");
ByteArrayInputStream byteInputStream = new ByteArrayInputStream(byteArray);
try {
String ind = doc.addPictureData(byteInputStream, picType);
int id = doc.getNextPicNameNumber(picType);
createPicture(id, ind, width , height, run);
//System.out.println("图片替换");
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
if(isSetText){
run.setText(text,0);
}
}
}
}
}
}
/**
* 根据图片类型，取得对应的图片类型代码
* @param picType
* @return int
*/
private int getPictureType(String picType){
int res = CustomXWPFDocument.PICTURE_TYPE_PICT;
if(picType != null){
if(picType.equalsIgnoreCase("png")){
res = CustomXWPFDocument.PICTURE_TYPE_PNG;
}else if(picType.equalsIgnoreCase("dib")){
res = CustomXWPFDocument.PICTURE_TYPE_DIB;
}else if(picType.equalsIgnoreCase("emf")){
res = CustomXWPFDocument.PICTURE_TYPE_EMF;
}else if(picType.equalsIgnoreCase("jpg") || picType.equalsIgnoreCase("jpeg")){
res = CustomXWPFDocument.PICTURE_TYPE_JPEG;
}else if(picType.equalsIgnoreCase("wmf")){
res = CustomXWPFDocument.PICTURE_TYPE_WMF;
}
}
return res;
}
/**
* @param id
* @param width 宽
* @param height 高
* @param run 段落
*/
public void createPicture(int id, String blipId, int width, int height,XWPFRun run) {
final int EMU = 9525;
width *= EMU;
height *= EMU;
CT inline inline = run.getCTR().addNewDrawing().addNewInline();
String picXml = ""
+ "<a:graphic xmlns:a="">"
+ " <a:graphicData uri="">"
+ " <pic:pic xmlns:pic="">"
+ " <pic:nvPicPr>" + " <pic:cNvPr id=""
+ id
+ "" name="Generated"/>"
+ " <pic:cNvPicPr/>"
+ " </pic:nvPicPr>"
+ " <pic:blipFill>"
+ " <a:blip r:embed=""
+ blipId
+ "" xmlns:r=""/>"
+ " <a: stretch >"
+ " <a:fillRect/>"
+ " </a:stretch>"
+ " </pic:blipFill>"
+ " <pic:spPr>"
+ " <a:xfrm>"
+ " <a:off x="0" y="0"/>"
+ " <a:ext cx=""
+ width
+ "" cy=""
+ height
+ ""/>"
+ " </a:xfrm>"
+ " <a:prstGeom prst="rect">"
+ " <a:avLst/>"
+ " </a:prstGeom>"
+ " </pic:spPr>"
+ " </pic:pic>"
+ " </a:graphicData>" + "</a:graphic>";
inline.addNewGraphic().addNewGraphicData();
XmlToken xmlToken = null;
try {
xmlToken = XmlToken.Factory.parse(picXml);
} catch (XmlException xe) {
xe.printStackTrace();
}
inline.set(xmlToken);
inline.setDistT(0);
inline.setDistB(0);
inline.setDistL(0);
inline.setDistR(0);
CTPositiveSize2D extent = inline.addNewExtent();
extent.setCx(width);
extent.setCy(height);
CTNonVisualDrawingProps docPr = inline.addNewDocPr();
docPr.setId(id);
docPr.setName("图片" + id);
docPr.setDescr("测试");
}
输出docx文档
把返回的XWPFDocument写入到对应的流中。
FileOutputStream fopts = new FileOutputStream("E://andy.docx");
doc.write(fopts);
转pdf文档
相关包的依赖：
<dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>fr.opensagres.poi.xwpf.converter.core</artifactId> <version>2.0.1</version> </dependency> <dependency> <groupId>fr.opensagres.xdocreport</groupId> <artifactId>fr.opensagres.poi.xwpf.converter.pdf</artifactId> <version>2.0.1</version> </dependency>
把XWPFDocument转成PDF：
FileOutputStream fopts = new FileOutputStream(new FIle("E://andy.pdf"));
PdfOptions options = PdfOptions.create();
options.fontProvider(new IFontProvider() {
@Override
public Font getFont(String s, String s1, float v, int i, Color color) {
try {
BaseFont bfChinese = BaseFont.createFont(rootPath + "wordtemplate/simsun.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
Font fontChinese = new Font(bfChinese, v, i, color);
if (s != null) {
fontChinese.setFamily(s);
}
return fontChinese;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
});
PdfConverter.getInstance().convert(doc, fopts, options);
其中doc就是要转的XWPFDocument。simsun.ttf 是字体文件。
最后测试后模板的处理结果：
