package com.why.main;import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableCell;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;public class PoiUtils {//测试public static void main(String[] args) {String templetDocPath = "D:/temp/请假单模板1.docx";String targetDocPath = "D:/temp/请假单1.docx";Map<String, Object> dataMap = new HashMap<String, Object>();dataMap.put("writeDate", "2018年10月14日");dataMap.put("name", "HaiyuKing");dataMap.put("dept", "移动开发组");dataMap.put("leaveType", "☑倒休 √年假 ✔事假 ☐病假 ☐婚假 ☐产假 ☐其他");dataMap.put("leaveReason", "倒休一天。");dataMap.put("leaveStartDate", "2018年10月14日上午");dataMap.put("leaveEndDate", "2018年10月14日下午");dataMap.put("leaveDay", "1");dataMap.put("leaveLeader", "同意");dataMap.put("leaveDeptLeaderImg", "同意！");PoiUtils.writeToDocx(templetDocPath,targetDocPath,dataMap);try {PoiUtils.readDocx(targetDocPath);} catch (Exception e) {// TODO Auto-generated catch block
            e.printStackTrace();}}/*** 通过XWPFDocument对内容进行访问。对于XWPF文档而言，用这种方式进行读操作更佳。* @throws Exception*/public static void readDocx(String templetDocPath) throws Exception {InputStream is = new FileInputStream(templetDocPath);XWPFDocument doc = new XWPFDocument(is);List<XWPFParagraph> paras = doc.getParagraphs();for (XWPFParagraph para : paras) {//当前段落的属性System.out.println("para=="+para.getText());}//获取文档中所有的表格List<XWPFTable> tables = doc.getTables();List<XWPFTableRow> rows;List<XWPFTableCell> cells;for (XWPFTable table : tables) {//获取表格对应的行rows = table.getRows();for (XWPFTableRow row : rows) {//获取行对应的单元格cells = row.getTableCells();for (XWPFTableCell cell : cells) {System.out.println("cell=="+cell.getText());;}}}if (is != null) {try {is.close();} catch (IOException e) {e.printStackTrace();}}}/*** 生成一个docx文件* @param templetDocPath  模板文件的完整路径* @param targetDocPath 生成的目标文件的完整路径* @param dataMap 替换的数据*/public static void writeToDocx(String templetDocPath, String targetDocPath, Map<String,Object> dataMap){try{//得到模板doc文件的HWPFDocument对象InputStream in = new FileInputStream(templetDocPath);writeToDocx(in,targetDocPath,dataMap);}catch(IOException e){e.printStackTrace();}}/*** 生成一个docx文件，主要用于直接读取asset目录下的模板文件，不用先复制到sd卡中* @param templetDocInStream  模板文件的InputStream* @param targetDocPath 生成的目标文件的完整路径* @param dataMap 替换的数据*/public static void writeToDocx(InputStream templetDocInStream, String targetDocPath, Map<String,Object> dataMap){try{//得到模板doc文件的HWPFDocument对象XWPFDocument HDocx = new XWPFDocument(templetDocInStream);//替换段落里面的变量
            replaceInPara(HDocx, dataMap);  //替换表格里面的变量
            replaceInTable(HDocx, dataMap);  //写到另一个文件中OutputStream os = new FileOutputStream(targetDocPath);  //把doc输出到输出流中
            HDocx.write(os);os.close();templetDocInStream.close();}catch(IOException e){e.printStackTrace();}catch(Exception e){e.printStackTrace();}}/** * 替换段落里面的变量 * @param doc 要替换的文档 * @param params 参数 */  private static void replaceInPara(XWPFDocument doc, Map<String, Object> params) {  Iterator<XWPFParagraph> iterator = doc.getParagraphsIterator();  XWPFParagraph para;  while (iterator.hasNext()) {  para = iterator.next();  replaceInPara(para, params);  }  }/*** 替换段落里面的变量* @param para 要替换的段落* @param params 参数*/private static void replaceInPara(XWPFParagraph para, Map<String, Object> params) {List<XWPFRun> runs;System.out.println("para.getParagraphText()=="+para.getParagraphText());runs = para.getRuns();for (int i=0; i<runs.size(); i++) {XWPFRun run = runs.get(i);String runText = run.toString();System.out.println("runText=="+runText);// 替换文本内容，将自定义的$xxx$替换成实际文本for(Map.Entry<String, Object> entry : params.entrySet()){runText = runText.replace(entry.getKey(), entry.getValue()+"");//直接调用XWPFRun的setText()方法设置文本时，在底层会重新创建一个XWPFRun，把文本附加在当前文本后面，//所以我们不能直接设值，需要先删除当前run,然后再自己手动插入一个新的run。
                para.removeRun(i);para.insertNewRun(i).setText(runText);}}}/** * 替换表格里面的变量 * @param doc 要替换的文档 * @param params 参数 */  private static void replaceInTable(XWPFDocument doc, Map<String, Object> params) {  Iterator<XWPFTable> iterator = doc.getTablesIterator();  XWPFTable table;  List<XWPFTableRow> rows;  List<XWPFTableCell> cells;  List<XWPFParagraph> paras;  while (iterator.hasNext()) {  table = iterator.next();  rows = table.getRows();  for (XWPFTableRow row : rows) {  cells = row.getTableCells();  for (XWPFTableCell cell : cells) {  paras = cell.getParagraphs();  for (XWPFParagraph para : paras) {  replaceInPara(para, params);  }  }  }  }  }  }