导入excel
程序员文章站
2024-01-03 18:28:16
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该文章是关于导入excel的前台和后台相关程序。
页面代码：
<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>
<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" >选择文件</button>
<input type="file" name="file" style="width:0px;height:0px;" id="uploadEventFile">
<input id="uploadEventPath" disabled="disabled" type="text" placeholder="请选择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>js代码：
<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>
后台代码：
controller
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import service.ImportService;
@Controller
@RequestMapping("/excel")
public class ImportExcelController{
@Autowired(required=true)
private ImportService importService;
//导入excel
@RequestMapping(value = "/import", method=RequestMethod.POST)
@ResponseBody
public Map<String, Object> importExcel(@RequestParam(value="file",required = false) MultipartFile file, HttpServletRequest request,HttpServletResponse response){
Map<String, Object> map = new HashMap<String, Object>();
String result = importService.readExcelFile(file);
map.put("message", result);
return map;
}
}service
import org.springframework.web.multipart.MultipartFile;
public interface ImportService {
/**
* 读取excel中的数据,生成list
*/
String readExcelFile(MultipartFile file);
} serviceImpl
package service.Impl;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import service.ImportService;
import controller.ReadExcel;
import dao.UserDao;
@Service
public class ImportServiceImpl implements ImportService {
@Autowired(required = true)
private UserDao userDao;
@Override
public String readExcelFile(MultipartFile file) {
String result = "";
//创建处理EXCEL的类
ReadExcel readExcel = new ReadExcel();
//解析excel，获取上传的事件单
List<Map<String, Object>> userList = readExcel.getExcelInfo(file);
//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,
for(Map<String, Object> user:userList){
int ret = userDao.insertUser(user.get("name").toString(), user.get("sex").toString(), Integer.parseInt(user.get("age").toString()));
if(ret == 0){
result = "插入数据库失败";
}
}
if(userList != null && !userList.isEmpty()){
result = "上传成功";
}else{
result = "上传失败";
}
return result;
}
}dao
public interface UserDao {
public int insertUser(String name, String sex, int age);
}daoImpl
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Component;
import dao.UserDao;
@Component
public class UserDaoImpl implements UserDao {
@Autowired(required = true)
private JdbcTemplate jdbcTemplate;
@Override
public int insertUser(String name, String sex, int age) {
String sql = "insert into user(name,sex,age) values('"+ name +"','"+ sex +"',"+age+")";
int ret = 0;
try {
ret = jdbcTemplate.update(sql);
} catch (DataAccessException e) {
e.printStackTrace();
}
return ret;
}
}ReadExcel
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.poi.hssf.usermodel.HSSFCell;
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;
/**
*
* @author hewangtong
*
*/
public class ReadExcel {
// 总行数
private int totalRows = 0;
// 总条数
private int totalCells = 0;
// 错误信息接收器
private String errorMsg;
// 构造方法
public ReadExcel() {
}
// 获取总行数
public int getTotalRows() {
return totalRows;
}
// 获取总列数
public int getTotalCells() {
return totalCells;
}
// 获取错误信息
public String getErrorInfo() {
return errorMsg;
}
/**
* 读EXCEL文件，获取信息集合
*
* @param fielName
* @return
*/
public List<Map<String, Object>> getExcelInfo(MultipartFile mFile) {
String fileName = mFile.getOriginalFilename();// 获取文件名
// List<Map<String, Object>> userList = new LinkedList<Map<String, Object>>();
try {
if (!validateExcel(fileName)) {// 验证文件名是否合格
return null;
}
boolean isExcel2003 = true;// 根据文件名判断文件是2003版本还是2007版本
if (isExcel2007(fileName)) {
isExcel2003 = false;
}
return createExcel(mFile.getInputStream(), isExcel2003);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 根据excel里面的内容读取客户信息
*
* @param is 输入流
* @param isExcel2003 excel是2003还是2007版本
* @return
* @throws IOException
*/
public List<Map<String, Object>> createExcel(InputStream is, boolean isExcel2003) {
try {
Workbook wb = null;
if (isExcel2003) {// 当excel是2003时,创建excel2003
wb = new HSSFWorkbook(is);
} else {// 当excel是2007时,创建excel2007
wb = new XSSFWorkbook(is);
}
return readExcelValue(wb);// 读取Excel里面客户的信息
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
/**
* 读取Excel里面客户的信息
*
* @param wb
* @return
*/
private List<Map<String, Object>> readExcelValue(Workbook wb) {
// 得到第一个shell
Sheet sheet = wb.getSheetAt(0);
// 得到Excel的行数
this.totalRows = sheet.getPhysicalNumberOfRows();
// 得到Excel的列数(前提是有行数)
if (totalRows > 1 && sheet.getRow(0) != null) {
this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells();
}
List<Map<String, Object>> userList = new ArrayList<Map<String, Object>>();
// 循环Excel行数
for (int r = 1; r < totalRows; r++) {
Row row = sheet.getRow(r);
if (row == null) {
continue;
}
// 循环Excel的列
Map<String, Object> map = new HashMap<String, Object>();
for (int c = 0; c < this.totalCells; c++) {
Cell cell = row.getCell(c);
if (null != cell) {
if (c == 0) {
// 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
if (cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) {
String name = String.valueOf(cell.getNumericCellValue());
map.put("name", name.substring(0, name.length() - 2 > 0 ? name.length() - 2 : 1));// 名称
} else {
map.put("name", cell.getStringCellValue());// 名称
}
} else if (c == 1) {
if (cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) {
String sex = String.valueOf(cell.getNumericCellValue());
map.put("sex",sex.substring(0, sex.length() - 2 > 0 ? sex.length() - 2 : 1));// 性别
} else {
map.put("sex",cell.getStringCellValue());// 性别
}
} else if (c == 2) {
if (cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC) {
String age = String.valueOf(cell.getNumericCellValue());
map.put("age", age.substring(0, age.length() - 2 > 0 ? age.length() - 2 : 1));// 年龄
} else {
map.put("age", cell.getStringCellValue());// 年龄
}
}
}
}
// 添加到list
userList.add(map);
}
return userList;
}
/**
* 验证EXCEL文件
*
* @param filePath
* @return
*/
public boolean validateExcel(String filePath) {
if (filePath == null || !(isExcel2003(filePath) || isExcel2007(filePath))) {
errorMsg = "文件名不是excel格式";
return false;
}
return true;
}
// @描述：是否是2003的excel，返回true是2003
public static boolean isExcel2003(String filePath) {
return filePath.matches("^.+\\.(?i)(xls)$");
}
// @描述：是否是2007的excel，返回true是2007
public static boolean isExcel2007(String filePath) {
return filePath.matches("^.+\\.(?i)(xlsx)$");
}
}excel表格
导入excel成功后数据库表