html文件代码如下:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<link href="${base}/financing/css/index.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="${base}/financing/js/jquery.min.js"></script>
<script type="text/javascript" src="${base}/financing/js/common.js"></script>
<script type="text/javascript" src="${base}/financing/js/search.js"></script>
<script type="text/javascript" src="${base}/financing/js/product.js"></script>
<script type="text/javascript" src="${base}/financing/js/index.js"></script>
</head>
<body> <form method="POST" enctype="multipart/form-data" id="form" action="${base}/upfile/poistudy.action">
<input type="file" id="upfile" name="upfile">
<input type="button" name="checkSAPmain" id="checkSAPmain" value="导入数据" onclick="submit();" Class="listLink" >
</form>
</body>
<script>
function submit(){
var form = document.getElementById("form");
form.submit();
}
</script>
</html>
控制类(Controller文件poistudyAction):
package cn.fulong.cgn.web.action.poistudy; import java.io.IOException;
import java.io.InputStream;
import java.util.List; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession; import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest; import cn.fulong.common.web.action.BaseAction;
import cn.fulong.entity.InfoVo;
import cn.fulong.entity.SysUser;
import cn.fulong.util.ImportExcelUtil; @Controller
@RequestMapping("/upfile")
public class poistudyAction extends BaseAction { /**
* 解析excel
* @throws Exception
*/
@RequestMapping("/kkkk")
public String kkk(Model model,HttpServletRequest request) throws Exception{
System.out.println("123456789");
return "/poistudy/upfile";
} @RequestMapping(value="/poistudy",method={RequestMethod.GET,RequestMethod.POST})
public String top(Model model,HttpServletRequest request) throws Exception{
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
System.out.println("通过传统方式form表单提交方式导入excel文件！"); InputStream in =null;
List<List<Object>> listob = null;
MultipartFile file = multipartRequest.getFile("upfile");
if(file.isEmpty()){
throw new Exception("文件不存在！");
}
in = file.getInputStream();
listob = new ImportExcelUtil().getBankListByExcel(in,file.getOriginalFilename());
in.close(); //该处可调用service相应方法进行数据保存到数据库中，现只对数据输出
for (int i = 0; i < listob.size(); i++) {
List<Object> lo = listob.get(i);
InfoVo vo = new InfoVo();
vo.setCode(String.valueOf(lo.get(0)));
vo.setName(String.valueOf(lo.get(1)));
vo.setDate(String.valueOf(lo.get(2)));
vo.setMoney(String.valueOf(lo.get(3))); System.out.println("打印信息-->机构:"+vo.getCode()+" 名称："+vo.getName()+" 时间："+vo.getDate()+" 资产："+vo.getMoney());
}
return "/poistudy/upfile";
} }
实体类(InfoVo):
package cn.fulong.entity;
public class InfoVo {
private String code;
private String name;
private String date;
private String money;
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getMoney() {
return money;
}
public void setMoney(String money) {
this.money = money;
}
}
工具类(ImportExcelUtil)
package cn.fulong.util; import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List; 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; public class ImportExcelUtil { private final static String excel2003L =".xls"; //2003- 版本的excel
private final static String excel2007U =".xlsx"; //2007+ 版本的excel /**
* 描述：获取IO流中的数据，组装成List<List<Object>>对象
* @param in,fileName
* @return
* @throws IOException
*/
public List<List<Object>> getBankListByExcel(InputStream in,String fileName) throws Exception{
List<List<Object>> list = null; //创建Excel工作薄
Workbook work = this.getWorkbook(in,fileName);
if(null == work){
throw new Exception("创建Excel工作薄为空！");
}
Sheet sheet = null;
Row row = null;
Cell cell = null; list = new ArrayList<List<Object>>();
//遍历Excel中所有的sheet
for (int i = 0; i < work.getNumberOfSheets(); i++) {
sheet = work.getSheetAt(i);
if(sheet==null){continue;} //遍历当前sheet中的所有行
System.out.println(sheet.getFirstRowNum());
System.out.println(sheet.getLastRowNum());
for (int j = sheet.getFirstRowNum(); j <=sheet.getLastRowNum(); j++) {
row = sheet.getRow(j);
if(row==null||row.getFirstCellNum()==j){continue;} //遍历所有的列
List<Object> li = new ArrayList<Object>();
for (int y = row.getFirstCellNum(); y < row.getLastCellNum(); y++) {
cell = row.getCell(y);
li.add(this.getCellValue(cell));
}
list.add(li);
}
}
// work.close();
return list;
} /**
* 描述：根据文件后缀，自适应上传文件的版本
* @param inStr,fileName
* @return
* @throws Exception
*/
public Workbook getWorkbook(InputStream inStr,String fileName) throws Exception{
Workbook wb = null;
String fileType = fileName.substring(fileName.lastIndexOf("."));
if(excel2003L.equals(fileType)){
wb = new HSSFWorkbook(inStr); //2003-
}else if(excel2007U.equals(fileType)){
wb = new XSSFWorkbook(inStr); //2007+
}else{
throw new Exception("解析的文件格式有误！");
}
return wb;
} /**
* 描述：对表格中数值进行格式化
* @param cell
* @return
*/
public Object getCellValue(Cell cell){
Object value = null;
DecimalFormat df = new DecimalFormat("0"); //格式化number String字符
SimpleDateFormat sdf = new SimpleDateFormat("yyy-MM-dd"); //日期格式化
DecimalFormat df2 = new DecimalFormat("0.00"); //格式化数字 switch (cell.getCellType()) {
case Cell.CELL_TYPE_STRING:
value = cell.getRichStringCellValue().getString();
break;
case Cell.CELL_TYPE_NUMERIC:
if("General".equals(cell.getCellStyle().getDataFormatString())){
value = df.format(cell.getNumericCellValue());
}else if("m/d/yy".equals(cell.getCellStyle().getDataFormatString())){
value = sdf.format(cell.getDateCellValue());
}else{
value = df2.format(cell.getNumericCellValue());
}
break;
case Cell.CELL_TYPE_BOOLEAN:
value = cell.getBooleanCellValue();
break;
case Cell.CELL_TYPE_BLANK:
value = "";
break;
default:
break;
}
return value;
} }
使用的是Spring MVC 但是其他的MVC框架和Spring MVC差不多的.
POI所用的jar包:http://pan.baidu.com/s/1eRYC6o6