<input type="hidden" id="excelFilePath" name="excelFilePath" value="" /><tr><td>选择文件：</td><td><input type="file" name="uploadFile" id="excelFile"></input></input><span id="uploadMsg"></span></td></tr><tr><td></td><td> <input type="button" value="上传" onclick="fileUpload()">&nbsp;<input type="button" value="导入" id="btnOk" disabled="true" onclick="importEmp()"/></td></tr>

<script type="text/javascript">// 文件上传function fileUpload(){$("#fileTypeError").html("");$("#btnOk").attr("disabled",true);var fileName = $("#excelFile").val();var fileType = fileName.substr(fileName.length-4,fileName.length);if(fileType == ".xls" || fileType == "xlsx"){var uploadFileUrl = "${basePath}/public/uploadFile.action";var formData = new FormData($("#mainForm")[0]);$.ajax({type: "POST",  url: uploadFileUrl, data: formData,cache: false,processData: false,  contentType: false, dataType : "json",success: function(data){if(null != data){if (data.dataStatus == "1") {$("#uploadMsg").html("<font color='green'>上传成功!</font>");$("#btnOk").attr("disabled",false);$("#excelFilePath").attr("value",data.dataMain);//alert($("#excelFilePath").val());} else {if (data.errorMsg != null&& data.errorMsg.length > 0) {alert(data.errorMsg);$("#uploadMsg").html("<font color='red'>" +data.errorMsg + "请仔细阅读操作说明！</font>");}}}},error : function(XMLHttpRequest, textStatus,errorThrown) {alert("系统异常[" + textStatus + "]:" + errorThrown);}});}else{$("#uploadMsg").html("<font color='red'>上传文件类型错误,支持类型: .xls .xlsx</font>");}}//Excel文件导入到数据库中       function importEmp(){  var importExcelURL = "${basePath}/public/importResultExaminee.action";var excelFilePath = $("#excelFilePath").val();$.ajax({type: "POST",  url: importExcelURL, data: {"excelFilePath":excelFilePath},cache: false,dataType : "json",success: function(data){if(null != data){if (data.dataStatus == "1") {$("#btnOk").attr("disabled",false);alert("本次成功导入数量：" + data.dataMain);}else{if (data.errorMsg != null&& data.errorMsg.length > 0) {alert(data.errorMsg);}}}},error : function(XMLHttpRequest, textStatus,errorThrown) {alert("系统异常[" + textStatus + "]:" + errorThrown);}})}
</script>

package com.sinotn.utils;import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;import org.apache.log4j.Logger;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.multipart.MultipartFile;/*** excel导出导入工具类* Copyright (c) 2018 by Sinotn* @author Libin* @date 2018年4月8日 上午9:39:50*/
public class POIUtils {private static Logger logger = Logger.getLogger(POIUtils.class);private final static String XLS = "xls";private final static String XLSX = "xlsx";/*** 读取excel文件* @param formFile* @return* @throws IOException*/public static List<String[]> readExcel(MultipartFile  formFile) throws IOException {// 检查文件
        checkFile(formFile);//获得Workbook工作薄对象Workbook workbook = getWorkBook(formFile);//创建返回对象，把每行中的值作为一个数组，所有行作为一个集合返回  List<String[]> list = new ArrayList<String[]>();if (null != workbook) {for (int sheetNum  = 0; sheetNum < workbook.getNumberOfSheets();sheetNum++) {//获得当前sheet工作表  Sheet sheet = workbook.getSheetAt(sheetNum);if (null == sheet) {continue;}//获得当前sheet的开始行  int firstRowNum  = sheet.getFirstRowNum();  //获得当前sheet的结束行  int lastRowNum = sheet.getLastRowNum();  //循环除了第一行的所有行 for (int rowNum = firstRowNum + 1;rowNum <= lastRowNum;rowNum++) {//获得当前行  Row row = sheet.getRow(rowNum);  if(row == null){  continue;  }  //获得当前行的开始列  int firstCellNum = row.getFirstCellNum();  //获得当前行的列数  int lastCellNum = row.getPhysicalNumberOfCells();  String[] cells = new String[row.getPhysicalNumberOfCells()];  //循环当前行  for (int cellNum = firstCellNum; cellNum < lastCellNum;cellNum++) {Cell cell = row.getCell(cellNum);  cells[cellNum] = getCellValue(cell);}list.add(cells);}}workbook.close();  }return list;}/*** 获取当前行数据* @param cell* @return*/@SuppressWarnings("deprecation")private static String getCellValue(Cell cell) {String cellValue = "";  if(cell == null){  return cellValue;  }  //把数字当成String来读，避免出现1读成1.0的情况  if(cell.getCellType() == Cell.CELL_TYPE_NUMERIC){  cell.setCellType(Cell.CELL_TYPE_STRING);  }  //判断数据的类型  switch (cell.getCellType()){  case Cell.CELL_TYPE_NUMERIC: //数字  cellValue = String.valueOf(cell.getNumericCellValue());  break;  case Cell.CELL_TYPE_STRING: //字符串  cellValue = String.valueOf(cell.getStringCellValue());  break;  case Cell.CELL_TYPE_BOOLEAN: //Boolean  cellValue = String.valueOf(cell.getBooleanCellValue());  break;  case Cell.CELL_TYPE_FORMULA: //公式  cellValue = String.valueOf(cell.getCellFormula());  break;  case Cell.CELL_TYPE_BLANK: //空值   cellValue = "";  break;  case Cell.CELL_TYPE_ERROR: //故障  cellValue = "非法字符";  break;  default:  cellValue = "未知类型";  break;  }  return cellValue;  }/*** 获得Workbook工作薄对象* @param formFile* @return*/private static Workbook getWorkBook(MultipartFile  formFile) {//获得文件名  String fileName = formFile.getName();//创建Workbook工作薄对象，表示整个excel  Workbook workbook = null;  try {  //获取excel文件的io流  InputStream is = formFile.getInputStream();//根据文件后缀名不同(xls和xlsx)获得不同的Workbook实现类对象  if(fileName.endsWith(XLS)){  //2003  workbook = new HSSFWorkbook(is);  }else if(fileName.endsWith(XLSX)){  //2007  workbook = new XSSFWorkbook(is);  }  } catch (IOException e) {  logger.info(e.getMessage());  }  return workbook;  }/*** 检查文件* @param formFile* @throws IOException*/private static void checkFile(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();//判断文件是否是excel文件  if(!fileName.endsWith(XLS) && !fileName.endsWith(XLSX)){  logger.error(fileName + "不是excel文件");  throw new IOException(fileName + "不是excel文件");  }  }}

/*** 读取excel文件中的用户信息，保存在数据库中* @param excelFile*/
@RequestMapping("/readExcel")
public void readExcel(@RequestParam(value = "excelFile") MultipartFile excelFile,HttpServletRequest req,HttpServletResponse resp){Map<String, Object> param = new HashMap<String, Object>();List<User> allUsers = new ArrayList<User>();try {List<String[]> userList = POIUtil.readExcel(excelFile);for(int i = 0;i<userList.size();i++){String[] users = userList.get(i);User user = new User();user.setUserName(users[0]);user.setPassword(users[1]);user.setAge(Integer.parseInt(users[2]));allUsers.add(user);}} catch (IOException e) {logger.info("读取excel文件失败", e);}param.put("allUsers", allUsers);this.userService.insertUsers(param);
}