java之通过Excel批量添加数据

1.div

<div title="批量添加" data-options="closable:false">
   <div id="pnlImport" class="easyui-panel" title=" "
data-options="resizable:true,closed:false,fit:true,tools:'#tools_c$#_2'">
<form id="updata" method="post" enctype="multipart/form-data">
<table>
<tr>
<td colspan="2">  
   <input id="uploadExcel" name="file" type="file">
</td>
</tr>

</table>
    </form>
</div>
</div>

2.js

 $('#updata', c$).form('submit', {
url :    '${path}/bu/importCatedata',
dataType: 'text', 
contentType : "application/x-www-form-urlencoded;charset=utf-8",
success : function(result) {
var data = $.parseJSON(result);
if(data.code == 0){
alert(data.message);
}
else{
alert(data.message);
document.getElementById("uploadExcel").value = "";
}

},
error : function() {

}
}); 

3.后台处理工具类与实现

package com.eznext.modul.municipal.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

for (int j = sheet.getFirstRowNum(); j < sheet.getLastRowNum()+1; 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(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;
}



}

/** * 导入管养数据 * @param file * @param principal * @return * @throws BiffException */@ResponseBody@RequestMapping(value = "/bu/importCatedata")public ActionResult importCatedata(MultipartFile file,Principal principal) throws BiffException {    List<List<Object>> listob = null; try {listob = new ImportExcelUtil().getBankListByExcel(file.getInputStream(),file.getOriginalFilename());tmaintainService.BatChadd(listob);return ActionResult.Succeed();} catch (Exception e) {return ActionResult.Failed(e);}}