首先建立好excel表格，并对应excel表格创建数据库表。
前台jsp页面：其中包含js
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>导入excel</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="导入excel"> <script type="text/javascript" src="view/js/jquery-1.8.2.js"></script> </head> <script type="text/javascript"> var User = function() { this.init = function() { //模拟上传excel $("#uploadEventBtn").unbind("click").bind("click", function() { $("#uploadEventFile").click(); }); $("#uploadEventFile").bind("change", function() { $("#uploadEventPath").attr("value", $("#uploadEventFile").val()); }); }; //点击上传钮 this.uploadBtn = function() { var uploadEventFile = $("#uploadEventFile").val(); if (uploadEventFile == '') { alert("请择excel,再上传"); } else if (uploadEventFile.lastIndexOf(".xls") < 0) {//可判断以.xls和.xlsx结尾的excel alert("只能上传Excel文件"); } else { var url = "excel/import.do"; var formData = new FormData($('form')[0]); user.sendAjaxRequest(url, "POST", formData); } }; this.sendAjaxRequest = function(url, type, data) { $.ajax({ url : url, type : type, data : data, dataType : "json", success : function(result) { alert(result.message); }, error : function(result) { alert(result.message); }, cache : false, contentType : false, processData : false }); }; }; var user; $(function() { user = new User(); user.init(); }); </script> <body> <form enctype="multipart/form-data" id="batchUpload" action="/excel/import" method="post" class="form-horizontal"> <button class="btn btn-success btn-xs" id="uploadEventBtn" style="height:26px;" type="button" >择文件</button> <input type="file" name="file" style="width:0px;height:0px;" id="uploadEventFile"> <input id="uploadEventPath" disabled="disabled" type="text" placeholder="请择excel表" style="border: 1px solid #e6e6e6; height: 26px;width: 200px;" /> </form> <button type="button" class="btn btn-success btn-sm" onclick="user.uploadBtn()" >上传</button> </body> </html>
后台代码：自己修改的一些判断条件
/**
* 保存上传的Excel文件数据
*/
@PostMapping("/Excel")
// @RequiresPermissions("biz:userwebsite:save")
public R saveExcel(HttpServletRequest request) {
MultipartFile file = null;
Map<String, Object> map = new HashMap<String, Object>();
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if (isMultipart) {
MultipartHttpServletRequest multipartRequest = WebUtils.getNativeRequest(request,
MultipartHttpServletRequest.class);
file = multipartRequest.getFile("file");
} else {
map.put("message", "请选择文件");
return R.ok().put("map", map);
}
if (file != null) {
String result = tdeviceService.readExcelFile(file);
map.put("message", result);
}
return R.ok().put("map", map);
}
Controller
1 import java.util.HashMap; 2 import java.util.Map; 3 4 import javax.servlet.http.HttpServletRequest; 5 import javax.servlet.http.HttpServletResponse; 6 7 import org.springframework.beans.factory.annotation.Autowired; 8 import org.springframework.stereotype.Controller; 9 import org.springframework.web.bind.annotation.RequestMapping; 10 import org.springframework.web.bind.annotation.RequestMethod; 11 import org.springframework.web.bind.annotation.RequestParam; 12 import org.springframework.web.bind.annotation.ResponseBody; 13 import org.springframework.web.multipart.MultipartFile; 14 15 import service.ImportService; 16 17 @Controller 18 @RequestMapping("/excel") 19 public class ImportExcelController{ 20 @Autowired(required=true) 21 private ImportService importService; 22 23 //导入excel 24 @RequestMapping(value = "/import", method=RequestMethod.POST) 25 @ResponseBody 26 public Map<String, Object> importExcel(@RequestParam(value="file",required = false) MultipartFile file, HttpServletRequest request,HttpServletResponse response){ 27 Map<String, Object> map = new HashMap<String, Object>(); 28 String result = importService.readExcelFile(file); 29 map.put("message", result); 30 return map; 31 } 32 33 }
service:
1 import org.springframework.web.multipart.MultipartFile; 2 3 public interface ImportService { 4 5 /** 6 * 读取excel中的数据,生成list 7 */ 8 String readExcelFile(MultipartFile file); 9 10 }
serviceImpl:
String fileName = file.getOriginalFilename();// 获取文件名
//判断文件是否是excel文件
if(!fileName.endsWith("xls") && !fileName.endsWith("xlsx")){
return result="请选择Excel文件";
}
1 import java.util.List; 2 import java.util.Map; 3 4 import org.springframework.beans.factory.annotation.Autowired; 5 import org.springframework.stereotype.Service; 6 import org.springframework.web.multipart.MultipartFile; 7 8 import service.ImportService; 9 import controller.ReadExcel; 10 import dao.UserDao; 11 12 @Service 13 public class ImportServiceImpl implements ImportService { 14 @Autowired(required = true) 15 private UserDao userDao; 16 @Override 17 public String readExcelFile(MultipartFile file) { 18 String result = ""; 19 //创建处理EXCEL的类 20 ReadExcel readExcel = new ReadExcel(); 21 //解析excel，获取上传的事件单 22 List<Map<String, Object>> userList = readExcel.getExcelInfo(file); 23 //至此已经将excel中的数据转换到list里面了,接下来就可以操作list,可以进行保存到数据库,或者其他操作, 24 for(Map<String, Object> user:userList){ 25 int ret = userDao.insertUser(user.get("name").toString(), user.get("sex").toString(), Integer.parseInt(user.get("age").toString())); 26 if(ret == 0){ 27 result = "插入数据库失败"; 28 } 29 } 30 if(userList != null && !userList.isEmpty()){ 31 result = "上传成功"; 32 }else{ 33 result = "上传失败"; 34 } 35 return result; 36 } 37 38 }
dao:
public interface UserDao { public int insertUser(String name, String sex, int age); }
daoImpl:
1 import org.springframework.beans.factory.annotation.Autowired; 2 import org.springframework.dao.DataAccessException; 3 import org.springframework.jdbc.core.JdbcTemplate; 4 import org.springframework.stereotype.Component; 5 6 import dao.UserDao; 7 8 @Component 9 public class UserDaoImpl implements UserDao { 10 @Autowired(required = true) 11 private JdbcTemplate jdbcTemplate; 12 13 @Override 14 public int insertUser(String name, String sex, int age) { 15 String sql = "insert into user(name,sex,age) values('"+ name +"','"+ sex +"',"+age+")"; 16 int ret = 0; 17 try { 18 ret = jdbcTemplate.update(sql); 19 } catch (DataAccessException e) { 20 e.printStackTrace(); 21 } 22 return ret; 23 } 24 25 }
ReadExcel:
1 package controller; 2 3 import java.io.IOException; 4 import java.io.InputStream; 5 import java.util.ArrayList; 6 import java.util.HashMap; 7 import java.util.List; 8 import java.util.Map; 9 10 import org.apache.poi.hssf.usermodel.HSSFCell; 11 import org.apache.poi.hssf.usermodel.HSSFWorkbook; 12 import org.apache.poi.ss.usermodel.Cell; 13 import org.apache.poi.ss.usermodel.Row; 14 import org.apache.poi.ss.usermodel.Sheet; 15 import org.apache.poi.ss.usermodel.Workbook; 16 import org.apache.poi.xssf.usermodel.XSSFWorkbook; 17 import org.springframework.web.multipart.MultipartFile; 18 19 /** 20 * 21 * @author hewangtong 22 * 23 */ 24 public class ReadExcel { 25 // 总行数 26 private int totalRows = 0; 27 // 总条数 28 private int totalCells = 0; 29 // 错误信息接收器 30 private String errorMsg; 31 32 // 构造方法 33 public ReadExcel() { 34 } 35 36 // 获取总行数 37 public int getTotalRows() { 38 return totalRows; 39 } 40 41 // 获取总列数 42 public int getTotalCells() { 43 return totalCells; 44 } 45 46 // 获取错误信息 47 public String getErrorInfo() { 48 return errorMsg; 49 } 50 51 /** 52 * 读EXCEL文件，获取信息集合 53 * 54 * @param fielName 55 * @return 56 */ 57 public List<Map<String, Object>> getExcelInfo(MultipartFile mFile) { 58 String fileName = mFile.getOriginalFilename();// 获取文件名 59 // List<Map<String, Object>> userList = new LinkedList<Map<String, Object>>(); 60 try { 61 if (!validateExcel(fileName)) {// 验证文件名是否合格 62 return null; 63 } 64 boolean isExcel2003 = true;// 根据文件名判断文件是2003版本还是2007版本 65 if (isExcel2007(fileName)) { 66 isExcel2003 = false; 67 } 68 return createExcel(mFile.getInputStream(), isExcel2003); 69 } catch (Exception e) { 70 e.printStackTrace(); 71 } 72 return null; 73 } 74 75 /** 76 * 根据excel里面的内容读取客户信息 77 * 78 * @param is 输入流 79 * @param isExcel2003 excel是2003还是2007版本 80 * @return 81 * @throws IOException 82 */ 83 public List<Map<String, Object>> createExcel(InputStream is, boolean isExcel2003) { 84 try { 85 Workbook wb = null; 86 if (isExcel2003) {// 当excel是2003时,创建excel2003 87 wb = new HSSFWorkbook(is); 88 } else {// 当excel是2007时,创建excel2007 89 wb = new XSSFWorkbook(is); 90 } 91 return readExcelValue(wb);// 读取Excel里面客户的信息 92 } catch (IOException e) { 93 e.printStackTrace(); 94 } 95 return null; 96 } 97 98 /** 99 * 读取Excel里面客户的信息 100 * 101 * @param wb 102 * @return 103 */ 104 private List<Map<String, Object>> readExcelValue(Workbook wb) { 105 // 得到第一个shell 106 Sheet sheet = wb.getSheetAt(0); 107 // 得到Excel的行数 108 this.totalRows = sheet.getPhysicalNumberOfRows(); 109 // 得到Excel的列数(前提是有行数) 110 if (totalRows > 1 && sheet.getRow(0) != null) { 111 this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells(); 112 } 113 List<Map<String, Object>> userList = new ArrayList<Map<String, Object>>(); 114 // 循环Excel行数 115 for (int r = 1; r < totalRows; r++) { 116 Row row = sheet.getRow(r); 117 if (row == null) { 118 continue; 119 } 120 // 循环Excel的列 121 Map<String, Object> map = new HashMap<String, Object>(); 122 for (int c = 0; c < this.totalCells; c++) { 123 Cell cell = row.getCell(c); 124 if (null != cell) { 125 if (c == 0) { 126 // 如果是纯数字,比如你写的是25,cell.getNumericCellValue()获得是25.0,通过截取字符串去掉.0获得25 127 if (cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) { 128 String name = String.valueOf(cell.getNumericCellValue()); 129 map.put("name", name.substring(0, name.length() - 2 > 0 ? name.length() - 2 : 1));// 名称 130 } else { 131 map.put("name", cell.getStringCellValue());// 名称 132 } 133 } else if (c == 1) { 134 if (cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) { 135 String sex = String.valueOf(cell.getNumericCellValue()); 136 map.put("sex",sex.substring(0, sex.length() - 2 > 0 ? sex.length() - 2 : 1));// 性别 137 } else { 138 map.put("sex",cell.getStringCellValue());// 性别 139 } 140 } else if (c == 2) { 141 if (cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) { 142 String age = String.valueOf(cell.getNumericCellValue()); 143 map.put("age", age.substring(0, age.length() - 2 > 0 ? age.length() - 2 : 1));// 年龄 144 } else { 145 map.put("age", cell.getStringCellValue());// 年龄 146 } 147 } 148 } 149 } 150 // 添加到list 151 userList.add(map); 152 } 153 return userList; 154 } 155 156 /** 157 * 验证EXCEL文件 158 * 159 * @param filePath 160 * @return 161 */ 162 public boolean validateExcel(String filePath) { 163 if (filePath == null || !(isExcel2003(filePath) || isExcel2007(filePath))) { 164 errorMsg = "文件名不是excel格式"; 165 return false; 166 } 167 return true; 168 } 169 170 // @描述：是否是2003的excel，返回true是2003 171 public static boolean isExcel2003(String filePath) { 172 return filePath.matches("^.+\\.(?i)(xls)$"); 173 } 174 175 // @描述：是否是2007的excel，返回true是2007 176 public static boolean isExcel2007(String filePath) { 177 return filePath.matches("^.+\\.(?i)(xlsx)$"); 178 } 179 180 }
参考：http://blog.csdn.net/he140622hwt/article/details/78478960