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 @RawResponseBody
Object ImportWord(HttpServletRequest request, @RequestParam("file") MultipartFile file) throws IOException,
ParseException {
return gwyjglyjtzBizc.ImportWord(request, file);
}
在Service的实现类中，
@Override
public 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 block
e.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)
@ResponseBody
public void exportMillCertificate(HttpServletRequest request, HttpServletResponse response, @RequestParam(
value = "objId") String objId) throws Exception {
gwyjglyjtzBizc.exportMillCertificate(request, response, objId);
}
Service 的实现类
@Override
public 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 stub
String 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。