在实际的开发过程中，也会遇到导入导出的功能，今天就简单的做一下总结。
1.需求：将下面word 数据导入到数据库并进行存储
在Controller中
@RequestMapping(value = "/ImportWord")public @RawResponseBodyObject ImportWord(HttpServletRequest request, @RequestParam("file") MultipartFile file) throws IOException,ParseException {return gwyjglyjtzBizc.ImportWord(request, file);}在Service的实现类中，
@Overridepublic Object ImportWord(HttpServletRequest request, MultipartFile file) throws ParseException {boolean flag = false;List<String> rowList;String userId = null;String userName = null;String deptId = null;String deptName = null;Map<String, String> userMap = DeptUserUtils.getUserDept(request);if (userMap instanceof Map) {userId = ((Map<?, ?>)userMap).get("userId").toString();userName = ((Map<?, ?>)userMap).get("userName").toString();deptId = ((Map<?, ?>)userMap).get("deptId").toString();deptName = ((Map<?, ?>)userMap).get("deptName").toString();}String xqlb1 = "";String xqdj1 = "";String yjbt1 = "";try {rowList = POIUtils.readYjtzWord(file);GwYjglYjtz gwYjglYjtz = new GwYjglYjtz();for (int i = 0; i < rowList.size(); i++) {if (rowList.get(i).equals("主送单位")) {gwYjglYjtz.setFbdw(rowList.get(++i));}if (rowList.get(i).contains("预警通知")) {yjbt1 += rowList.get(i);}if (rowList.get(i).contains("电缆预警")) {yjbt1 += rowList.get(i);gwYjglYjtz.setYjbt(yjbt1);}if (rowList.get(i).equals("险情类别")) {xqlb1 += rowList.get(++i) + ",";gwYjglYjtz.setXqlb(xqlb1);}if (rowList.get(i).equals("预警来源")) {gwYjglYjtz.setYjly(rowList.get(++i));}if (rowList.get(i).equals("预警级别")) {xqdj1 += rowList.get(++i) + ",";gwYjglYjtz.setXqdj(xqdj1);}if (rowList.get(i).contains("事件概要")) {String string = rowList.get(++i);gwYjglYjtz.setSjgy(string);}if (rowList.get(i).equals("要求")) {gwYjglYjtz.setYgcsyq(rowList.get(i + 1));}if (rowList.get(i).equals("影响时间")) {String string = rowList.get(++i);if (string.length() > 0) {String[] split1 = string.split("～");SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 使用SimpleDateFormat来解析日期字符串SimpleDateFormat originalFormat = new SimpleDateFormat("yyyy年MM月dd日HH时mm分");// 创建一个新的SimpleDateFormat来格式化输出SimpleDateFormat targetFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");int a = 0;for (String s : split1) {try {Date date = originalFormat.parse(s);// 转换并打印结果String formattedDate = targetFormat.format(date);System.out.println(formattedDate);if (a == 0) {gwYjglYjtz.setXxkssj(date);} else {gwYjglYjtz.setXxjssj(date);}a++;} catch (Exception e) {e.printStackTrace();}}}gwYjglYjtz.setDjrid(userId);gwYjglYjtz.setDjr(userName);gwYjglYjtz.setDjdwid(deptId);gwYjglYjtz.setDjdw(deptName);gwYjglYjtz.setCreatetime(new Date());}}super.add(gwYjglYjtz);flag = true;System.out.print("导入word成功");} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}return flag;}在这里需要通过输入流的方式把里面的内容读取出来，然后存储到集合中。
public static List<String> readYjtzWord(MultipartFile formFile) throws IOException {// 检查文件checkDocFile(formFile);InputStream fis = formFile.getInputStream();XWPFDocument document = new XWPFDocument(fis);// 创建返回对象，把每行中的值作为一个数组，所有的行作为一个集合返回List<String[]> list = new ArrayList<String[]>();// 遍历文档中的所有段落List<String> list1 = new ArrayList<String>();List<XWPFParagraph> paragraphs = document.getParagraphs();for (XWPFParagraph paragraph : paragraphs) {// 获取并打印段落文本String text = paragraph.getText();String trim = text.trim();String[] lines = trim.split("\n", 2);for (String s : lines) {list1.add(s);}System.out.println(trim);}// 如果需要处理表格，可以这样获取并遍历List<XWPFTable> tables = document.getTables();for (XWPFTable table : tables) {for (XWPFTableRow row : table.getRows()) {for (XWPFTableCell cell : row.getTableCells()) {for (XWPFParagraph p : cell.getParagraphs()) {String text = p.getText().trim();list1.add(text);System.out.println(text);}}}}// 关闭输入流fis.close();return list1;}检查是否是指定文件格式
public static void checkDocFile(MultipartFile formFile) throws IOException {// 判断文件是否存在if (null == formFile) {logger.error("文件不存在！");throw new FileNotFoundException("文件不存在！");}// 获得文件名// String fileName = formFile.getName();String fileName = formFile.getOriginalFilename();// 判断文件是否是word文件if (!fileName.endsWith(DOC) && !fileName.endsWith(DOCX)) {logger.error(fileName + "不是word文件！");throw new IOException(fileName + "不是word文件！");}}导出功能
首先我们需要在word 指定对应的模版，对应的字段需要用占位符，这里需要跟数据库的字段需要保持一致或者是和Map 里面的key 。
最终模版制作完成后，保存时请注意，文件类型。一般是xml ，由于电脑的原因我选择的是html 格式。
用编辑器打开编码一定要选择utf-8，不然将来导出的时候是乱码。
编码格式改后，如果还是出现乱码在head 标签中加入一下内容
<head><!--[if gte mso 9]><xml><w:WordDocument><w:View>Print</w:View><w:TrackMoves>false</w:TrackMoves><w:TrackFormatting/><w:ValidateAgainstSchemas/><w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid><w:IgnoreMixedContent>false</w:IgnoreMixedContent><w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText><w:DoNotPromoteQF/><w:LidThemeOther>EN-US</w:LidThemeOther><w:LidThemeAsian>ZH-CN</w:LidThemeAsian><w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript><w:Compatibility><w:BreakWrappedTables/><w:SnapToGridInCell/><w:WrapTextWithPunct/><w:UseAsianBreakRules/><w:DontGrowAutofit/><w:SplitPgBreakAndParaMark/><w:DontVertAlignCellWithSp/><w:DontBreakConstrainedForcedTables/><w:DontVertAlignInTxbx/><w:Word11KerningPairs/><w:CachedColBalance/><w:UseFELayout/></w:Compatibility><w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel><m:mathPr><m:mathFont m:val='Cambria Math'/><m:brkBin m:val='before'/><m:brkBinSub m:val='--'/><m:smallFrac m:val='off'/><m:dispDef/><m:lMargin m:val='0'/> <m:rMargin m:val='0'/><m:defJc m:val='centerGroup'/><m:wrapIndent m:val='1440'/><m:intLim m:val='subSup'/><m:naryLim m:val='undOvr'/></m:mathPr></w:WordDocument></xml><![endif]-->
</head>引入对应的jar包
Controller
@RequestMapping(value = "exportMillCertificate", method = RequestMethod.GET)@ResponseBodypublic void exportMillCertificate(HttpServletRequest request, HttpServletResponse response, @RequestParam(value = "objId") String objId) throws Exception {gwyjglyjtzBizc.exportMillCertificate(request, response, objId);}Service 的实现类
@Overridepublic void exportMillCertificate(HttpServletRequest request, HttpServletResponse response, String objId)throws Exception {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");SimpleDateFormat originalFormat = new SimpleDateFormat("yyyy年MM月dd日HH时mm分");// TODO Auto-generated method stubString sql ="select t.yjbt,t.fbdw,t.yjly,t.xqlb,t.xqdj,t.sjgy,t.ygcsyq,to_char(t.xxkssj,'yyyy-MM-dd hh24:mi:ss') as xxkssj,to_char(t.xxjssj,'yyyy-MM-dd hh24:mi:ss') as xxjssj from GW_GL_T t where t.obj_id=?";List<Map<String, String>> list = this.hibernateDao.queryForListWithSql(sql, new String[] {objId});Map<String, String> map0 = new HashMap<String, String>();Map<String, String> map = new HashMap<String, String>();if (!Tool.isEmptyList(list)) {map0 = list.get(0);// 应急标题if (Tool.isEmptyStr(map0.get("yjbt"))) {map.put("yjbt", "");} else {map.put("yjbt", map0.get("yjbt"));}// 发布单位if (Tool.isEmptyStr(map0.get("fbdw"))) {map.put("fbdw", "");} else {map.put("fbdw", map0.get("fbdw"));}// 预警来源if (Tool.isEmptyStr(map0.get("yjly"))) {map.put("yjly", "");} else {map.put("yjly", map0.get("yjly"));}// 险情类别if (Tool.isEmptyStr(map0.get("xqlb"))) {map.put("xqlb", "");} else {map.put("xqlb", map0.get("xqlb"));}// 预警级别if (Tool.isEmptyStr(map0.get("xqdj"))) {map.put("xqdj", "");} else {map.put("xqdj", map0.get("xqdj"));}// 影响时间if (Tool.isEmptyStr(map0.get("xxkssj"))) {map.put("yxsj", "");} else {String string = map0.get("xxkssj");String string1 = map0.get("xxjssj");Date parse = sdf.parse(string);Date parse1 = sdf.parse(string1);String format1 = originalFormat.format(parse);String format2 = originalFormat.format(parse1);map.put("yxsj", format1 + "～" + format2);}// 事件概要if (Tool.isEmptyStr(map0.get("sjgy"))) {map.put("sjgy", "");} else {map.put("sjgy", map0.get("sjgy"));}// 有关措施要求if (Tool.isEmptyStr(map0.get("ygcsyq"))) {map.put("ygcsyq", "");} else {map.put("ygcsyq", map0.get("ygcsyq"));}} else {map.put("yjbt", "");map.put("fbdw", "");map.put("yjly", "");map.put("xqlb", "");map.put("xqdj", "");map.put("yxsj", "");map.put("sjgy", "");map.put("ygcsyq", "");}// map.put("yxsj", "");String yjbt = map0.get("yjbt");WordUtils.exportWord(request, response, map, "yjglyjtzmb.ftl", yjbt);调用工具类的方法生成Word文档
public static void exportWord(HttpServletRequest request, HttpServletResponse response, Map<String, String> map,String templateName, String fileName) throws IOException {String pathString = request.getSession().getServletContext().getRealPath("/WEB-INF/templete/");logger.info("获取到的模板路径是：templetePath------->" + pathString);configuration.setDirectoryForTemplateLoading(new File(pathString));Template freemarkerTemplate = configuration.getTemplate(templateName);File file = null;InputStream fin = null;ServletOutputStream out = null;try {// 调用工具类的createDoc方法生成Word文档file = createDoc(map, freemarkerTemplate);fin = new FileInputStream(file);response.setCharacterEncoding("utf-8");response.setContentType("application/msword");// 设置浏览器以下载的方式处理该文件名// + DateUtil.currentDateToString()fileName = fileName + ".doc";response.setHeader("Content-Disposition","attachment;filename=".concat(String.valueOf(URLEncoder.encode(fileName, "UTF-8"))));out = response.getOutputStream();byte[] buffer = new byte[512]; // 缓冲区int bytesToRead = -1;// 通过循环将读入的Word文件的内容输出到浏览器中while ((bytesToRead = fin.read(buffer)) != -1) {out.write(buffer, 0, bytesToRead);}} finally {if (fin != null)fin.close();if (out != null)out.close();if (file != null)file.delete(); // 删除临时文件}} private static File createDoc(Map<String, String> dataMap, Template template) {String name = ".doc";File f = new File(name);Template t = template;try {// 这个地方不能使用FileWriter因为需要指定编码类型否则生成的Word文档会因为有无法识别的编码而无法打开Writer w = new OutputStreamWriter(new FileOutputStream(f), "utf-8");t.process(dataMap, w);w.close();} catch (Exception ex) {ex.printStackTrace();throw new RuntimeException(ex);}return f;}最终效果图与导入的是一致里，今天就先到这，在开发过程中不一定会遇到这些，但是觉得还不错那就点赞收藏一波哈，万一哪天用到里。