本内容主要包括（文件上传、excel2003数据导入数据库）excel导入数据库功能需要jxl jar包支持
下面是文件上传的前端测试代码
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="getAllByExcel" method="post" enctype="multipart/form-data"> <input type="file" name="file" > <input type="submit" value="上传"> </form> </body> </html>
下面控制类用于excel文件上传到服务器
@SuppressWarnings("unchecked")
@RequestMapping(value="getAllByExcel" ,method = RequestMethod.POST)
public Object getAllByExcel(HttpServletRequest request,HttpServletResponse response, ModelMap model){
MultipartHttpServletRequest mulltipartRequest=(MultipartHttpServletRequest)request;
MultipartFile files=mulltipartRequest.getFile("file");
//得到上传服务器路径
String path=request.getSession().getServletContext().getRealPath("/WEB-INF/res/upload");
String fileName=files.getOriginalFilename();
try {
InputStream inputStream=files.getInputStream();
byte[] b = new byte[1048576];
int length = inputStream.read(b);
path += "\" + fileName;
// 文件流写到服务器端
FileOutputStream outputStream = new FileOutputStream(path);
outputStream.write(b, 0, length);
inputStream.close();
outputStream.close();
//解析excel
List<Map<String, Object>> lists=CommonUtil.getAllExcel(path);
此功能需要导入jxl相关jar包，此方法提供excel路径返回List<Map<String, Object>>
//获取excel数据 public static List<Map<String, Object>> getAllExcel(String url){ List<Map<String, Object>> models=new ArrayList<Map<String, Object>>(); try { File filse=new File(url); Workbook rwb=Workbook.getWorkbook(filse); Sheet sheet=rwb.getSheet(0); int clos=sheet.getColumns(); //获取列数 int rows=sheet.getRows();//获取行数 String[] heads =new String[clos];//保存所有的key值 for (int i = 0; i < rows; i++) { Map<String, Object> mp =new HashMap<String,Object>(); for(int j=0;j<clos;j++){ if(i == 0 ){ heads[j] = sheet.getCell(j, i).getContents();//获取所有key值 } else{ mp.put(heads[j], sheet.getCell(j, i).getContents());//获取每行value值 } } //如果map不为空则添加到list集合 if (!mp.isEmpty()) { models.add(mp); } } } catch (Exception e) { // TODO: handle exception } return models; }
附加poi excel导入 （存在点问题 和上面思路类似 此处只是做个记录）
public static List<Map<String, Object>> readExcel(String url) throws IOException{ InputStream is=new FileInputStream(url); HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is); List<Map<String, Object>> models=new ArrayList<Map<String, Object>>(); //循环Sheet for (int numSheet = 0; numSheet < hssfWorkbook.getNumberOfSheets(); numSheet++) { HSSFSheet sheet=hssfWorkbook.getSheetAt(numSheet); if(sheet==null){ continue; } HSSFSheet sheet=hssfWorkbook.getSheetAt(0); int celNums=sheet.getRow(0).getPhysicalNumberOfCells(); String[] heads =new String[celNums];//保存所有的key值 for (int rowNum = 0; rowNum < sheet.getPhysicalNumberOfRows(); rowNum++) { HSSFRow Row = sheet.getRow(rowNum); Map<String, Object> mp =new HashMap<String,Object>(); for (int celNum = 0; celNum < celNums; celNum++) { if(rowNum == 0 ){ heads[celNum] = Row.getCell(celNum).getStringCellValue();//获取所有key值 } else{ mp.put(heads[celNum], Row.getCell(celNum).getStringCellValue());//获取每行value值 } } if (!mp.isEmpty()) { models.add(mp); } } } return models; }