POI操作Word

操作依赖包org.apache.poi，包括poi和poi-ooxml。

创建空白Word文件

    void poiCreateNewWord() {String path = "C:\\Users\\wisdom21111\\Desktop\\";XWPFDocument document = new XWPFDocument();try {FileOutputStream out = new FileOutputStream(path + "newFile.docx");document.write(out);out.close();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}

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复制Word文件

    void poiCopyFile() throws IOException {XWPFDocument xwpfDocument1 = new XWPFDocument(new FileInputStream("C:\\Users\\wisdom21111\\Desktop\\oldFile.docx"));XWPFDocument xwpfDocument2 = xwpfDocument1;FileOutputStream out = new FileOutputStream("C:\\Users\\wisdom21111\\Desktop\\newFile.docx");xwpfDocument2.write(out);out.close();}

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合并Word文档

    @Testvoid poiMergeMultiFile(File[] files,String outfile) throws IOException, XmlException {XWPFDocument xwpfDocument = new XWPFDocument(new FileInputStream(files[0]));CTBody ctBody = xwpfDocument.getDocument().getBody();String srcstr = ctBody.xmlText(); //<xml-fragment ...>...</xml-frament> 整体信息String prefix = srcstr.substring(0,srcstr.indexOf(">")+1); //<xml-frament ...> 头String suffix = srcstr.substring(srcstr.lastIndexOf("<")); //</xml-frament> 尾String mainbody = srcstr.substring(srcstr.indexOf(">")+1,srcstr.lastIndexOf("<")); //...主体内容List<String> list = new ArrayList<>();//使用循环遍历获得后续文件内容for(int i=1;i<files.length;i++){XWPFDocument xwpfDocument1 = new XWPFDocument(new FileInputStream(files[i]));CTBody ctBody1 = xwpfDocument1.getDocument().getBody();String appendContent = ctBody1.xmlText().substring(srcstr.indexOf(">")+1,srcstr.lastIndexOf("<")); //后续文件的主体内容list.add(appendContent);}StringBuilder sb = new StringBuilder();sb.append(prefix); //xml头sb.append(mainbody); //第一个文件主体内容for(String str:list){sb.append("    <w:p>\n" +"        <w:pPr>\n" +"            <w:pageBreakBefore w:val=\"true\"/>\n" +"        </w:pPr>\n" +"    </w:p>"); // 分页符sb.append(str); //后续文件主体}sb.append(suffix); //xml文件尾CTBody ctResult = CTBody.Factory.parse(sb.toString());ctBody.set(ctResult); //重新设置第一个文件内容FileOutputStream outputStream = new FileOutputStream(outfile);xwpfDocument.write(outputStream);outputStream.flush();xwpfDocument.close();outputStream.close();}@Testvoid poiMergeMultiFileTest() throws IOException, XmlException {File one = new File("C:\\Users\\wisdom21111\\Desktop\\File.docx");File two = new File("C:\\Users\\wisdom21111\\Desktop\\File.docx");File three = new File("C:\\Users\\wisdom21111\\Desktop\\File.docx");String out = "C:\\Users\\wisdom21111\\Desktop\\new.docx";File[] files = new File[]{one,two,three};poiMergeMultiFile(files,out);}

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合并Word文档简洁方法，使用POI-TL

    //依赖包 com.deepoove.poivoid nicePoiMergeFile() throws Exception {NiceXWPFDocument niceXWPFDocument1 = new NiceXWPFDocument(ne FileInputStream("C:\\Users\\wisdom21111\\Desktop\\output.docx"));NiceXWPFDocument niceXWPFDocument2 = new NiceXWPFDocument(ne FileInputStream("C:\\Users\\wisdom21111\\Desktop\\output.docx"));niceXWPFDocument1.createParagraph().setPageBreak(true);NiceXWPFDocument newDoc = niceXWPFDocument1.merge(niceXWPFDocument2);FileOutputStream out = new FileOutputStream("C:\\Users\\wisdom21111\\Desktop\\new_doc.docx");newDoc.write(out);newDoc.close();out.close();}

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使用POI-TL根据模板生成Word文件

    HashMap<String,Object> hashMap = new HashMap<>();hashMap.put("str","我是字符串");XWPFTemplate template = XWPFTemplate.compile("C:\\Users\\wisdom21111\\Desktop\\template.docx").render(hashMap);template.writeAndClose(new FileOutputStream("C:\\Users\\wisdom21111\\Desktop\\output.docx"));

文本标签 {{str}}
图片标签 {{@image}}
表格标签 {{#table}}

    hashMap.put("str","Hello,World");hasnMap.put("image","C:\\Users\\wisdom21111\\Desktop\\xxx.jpeg");//创建表格第一种方式hashMap.put("table",Tables.of(new String[][]{new String[][]{"00","01"},new String[][]{"10","11"}}).border(BorderStyle.DEFAULT).create());//创建表格第二种方式RowRenderData row0 = Rows.of("姓名","性别").textColor("FFFFFF").bgColor("4472C4").center().create();RowRenderData row1 = Rows.create("张三","男");hashMap.put("table",Tables.create(row0,row1));

引用标签替换图片，编辑替换文字-替换文字 {{img}}

    put("img",Pictures.ofLocal("C:\\Users\\wisdom21111\\Desktop\\newPic.jpg").create());

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POI-TL表格行循环

    void poitlRowTest() throws IOException {Student student1 = new Student("张三","男","一班","001");Student student2 = new Student("李四","男","一班","002");Student student3 = new Student("王五","男","一班","003");List<Student> list = asList(student1,student2,student3);LoopRowTableRenderPolicy policy = new LoopRowTableRenderPolicy();Configure config = Configure.builder().bind("list",policy).build();HashMap<String,Object> hashMap = new HashMap<>();hashMap.put("list",list);XWPFTemplate template = XWPFTemplate.compile("C:\\Users\\wisdom21111\\Desktop\\template.docx",config).render(hashMap);template.writeAndClose(new FileOutputStream("C:\\Users\\wisdom21111\\Desktop\\hello.docx"));}

模板template.docx

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POI-TL创建表格

void poitlCreateTable() throws IOException {//表格行，注意每行的单元格数量相同RowRenderData row0 =Rows.of("功率因数","允许误差","电流","实际相对误差",null,null).center().crate();RowRenderData row1 =Rows.of(null,null,null,"{{bar1}}","{{bar2}}","{{bar3}}").center().create();RowRenderData row2 =Rows.of("{{name}}","{{f1}}","{{a1}}","{{r11}}","{{r12}}","{{r13}}").center.create();RowRenderData row3 =Rows.of(null,null,"{{a2}}","{{r21}}","{{r22}}","{{r23}}").center().create(;RowRenderData row4 =Rows.of(null,null,"{{a3}}","{{r31}}","{{r32}}","{{r33}}").center().create(;RowRenderData row5 =Rows.of(null,null,"{{a4}}","{{r41}}","{{r42}}","{{r43}}").center().create(;RowRenderData row6 =Rows.of(null,null,"{{a5}}","{{r51}}","{{r52}}","{{r53}}").center().create(;RowRenderData row7 =Rows.of(null,"{{f2}}","{{a6}}","{{r61}}","{{r62}}","{{r63}}").center().crete();//单元格合并规格Map<MergeCellRule.Grid, MergeCellRule.Grid> map = new HashMap<>();map.put(MergeCellRule.Grid.of(0,0), MergeCellRule.Grid.of(1,0));map.put(MergeCellRule.Grid.of(0,3), MergeCellRule.Grid.of(0,5));map.put(MergeCellRule.Grid.of(0,1), MergeCellRule.Grid.of(1,1));map.put(MergeCellRule.Grid.of(0,2), MergeCellRule.Grid.of(1,2));map.put(MergeCellRule.Grid.of(2,0), MergeCellRule.Grid.of(7,0));map.put(MergeCellRule.Grid.of(2,1), MergeCellRule.Grid.of(6,1));MergeCellRule.MergeCellRuleBuilder mergeCellRuleBuilder =MergeCellRule.builder();for(Map.Entry<MergeCellRule.Grid, MergeCellRule.Grid> e:map.entrySet()){mergeCellRuleBuilder.map(e.getKey(),e.getValue());}//将表格添加到模板中Map<String,Object> hashMap = new HashMap<>();hashMap.put("table",Tables.of(row0,row1,row2,row3,row4,row5,row6,row7).mereRule(mergeCellRuleBuilder.build()).create());XWPFTemplate template =XWPFTemplate.compile("C:\\Users\\wisdom21111\\Desktop\\template.docx").rener(hashMap);template.writeAndClose(newFileOutputStream("C:\\Users\\wisdom21111\\Desktop\\hello.docx"));
}

创建效果：

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POI动态表格

创建表格数据类

public class DetailData {private List<RowRenderData> goods;private List<RowRenderData> labors;//...省略get/set方法
}

创建自定义渲染类

    public class DetailTablePolicy extends DynamicTableRenderPolicy {//表格渲染策略int goodStartRow = 2;int laborStartRow = 5;@Overridepublic void render(XWPFTable xwpfTable, Object o) throws Exception {if(null==o){return;}DetailData detailData = (DetailData)o;List<RowRenderData> labors = detailData.getLabors();if(null!=labors){xwpfTable.removeRow(laborStartRow);//循环插入for(int i=0;i<labors.size();i++){XWPFTableRow insertRow = xwpfTable.insertNewTableRow(laborStartRow);for(int j=0;j<7;j++) insertRow.createCell();TableTools.mergeCellsHorizonal(xwpfTable,laborStartRow,0,3);TableRenderPolicy.Helper.renderRow(xwpfTable.getRow(laborStartRow),labors.get(i));}}List<RowRenderData> goods = detailData.getGoods();if (null != goods) {xwpfTable.removeRow(goodStartRow);for (int i = 0; i < goods.size(); i++) {XWPFTableRow insertNewTableRow = xwpfTable.insertNewTableRow(goodStartRow);for (int j = 0; j < 7; j++) insertNewTableRow.createCell();TableRenderPolicy.Helper.renderRow(xwpfTable.getRow(goodStartRow), goods.get(i));}}}
}

填充数据执行渲染

void dynamicRenderTable() throws IOException {//动态表格 从底部向上逐个添加//自上向下添加位置不易确定DetailData detailData = new DetailData();RowRenderData good =Rows.of("4","墙纸","书房+卧室","1500","/","400","1600").center().create();List<RowRenderData> goodList = Arrays.asList(good,good,good);RowRenderData labor = Rows.of("油漆工","2","200","400").center().create();List<RowRenderData> laborList = Arrays.asList(labor,labor,labor,labor);detailData.setGoods(goodList);detailData.setLabors(laborList);Map<String,Object> map = new HashMap<>();map.put("detail_table",detailData);Configure config = Configure.builder().bind("detail_table",newDetailTablePolicy()).build();XWPFTemplate template =XWPFTemplate.compile("C:\\Users\\wisdom21111\\Desktop\\template.docx",confg).render(map);template.writeToFile("C:\\Users\\wisdom21111\\Desktop\\hello2.docx");
}

模板预览:

生成预览: