POI导入导出
package com.gxcz.common.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.DateUtil;
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.commons.CommonsMultipartFile;
import com.gxcz.xuhui.investment.model.BonusDetail;
import com.gxcz.xuhui.investment.model.CompleteSubscribeRecord;
import com.gxcz.xuhui.investment.model.dto.BonusDetailDTO;
import com.gxcz.xuhui.investment.model.dto.CompleteSubscribeRecordDTO;
public class ExcelUtil {
private static final int version2003 = 2003;
private static final int version2007 = 2007; //2007以上版本
private static int version = version2003;
private static Workbook wb = null;
private static Sheet sheet=null;
private static Cell cell = null;
private static Row row=null;
/**
* 用于导入
* 获取excel 的数组
* @param excelFilePath
* @return
* @throws IOException
*/
private static String[][] getExcelStr(CommonsMultipartFile file,String fileName,int beginRow) throws IOException{
//判断类型 2003，2007
if (fileName.endsWith(".xls")){
version = version2003;
} else if (fileName.endsWith(".xlsx")){
version = version2007;
}
InputStream stream=null;
if (version == version2003) {
stream = file.getInputStream();
wb = (Workbook) new HSSFWorkbook(stream);
} else if (version == version2007) {
wb = (Workbook) new XSSFWorkbook(file.getInputStream());
}
sheet = wb.getSheetAt(0);
// 行数(从0开始,相当于最后一行的索引),列数
int count_row=sheet.getLastRowNum();
for (int i = 0; i < count_row; i++) {
row=sheet.getRow(i+beginRow); //年模板，从第三行开始读
cell=row.getCell(0);
if(cell.getStringCellValue() == null || cell.getStringCellValue().equals("")){
count_row = i+beginRow;
break;
}
}
int count_cell=sheet.getRow(0).getPhysicalNumberOfCells();
String[][] str=new String[count_row][count_cell];
for (int i = 0; i < count_row; i++) {
for (int j = 0; j < count_cell; j++) {
row=sheet.getRow(i+beginRow);
cell=row.getCell(j);
int type = cell.getCellType(); // 得到单元格数据类型
String k = "";
if(type ==Cell.CELL_TYPE_STRING){
if(cell.getStringCellValue() == null){
break;
}
}
switch (type) { // 判断数据类型
case Cell.CELL_TYPE_NUMERIC:
if(DateUtil.isCellDateFormatted(cell)){
k = new DataFormatter().formatRawCellContents(cell.getNumericCellValue(), 0, "yyyy-mm-dd");//
}else{
k=cell.getNumericCellValue()+"";
}
break;
case Cell.CELL_TYPE_STRING:
k = cell.getStringCellValue();
break;
case Cell.CELL_TYPE_FORMULA:
k = cell.getCellFormula();
break;
case Cell.CELL_TYPE_BLANK:
k = "";
break;
case Cell.CELL_TYPE_BOOLEAN:
k = cell.getBooleanCellValue() + "";
break;
case Cell.CELL_TYPE_ERROR:
k = cell.getErrorCellValue() + "";
break;
default:
break;
}
str[i][j]=k;
}
}
cell=null;
row=null;
sheet=null;
wb=null;
return str;
}
/**
* 导出文件的方法
* @param wb
* @param srcFilePath
* @param response
*/
private static void exportFile(String filename,Workbook wb,String srcFilePath, HttpServletResponse response){
// File file = new File(srcFilePath);
// // 取得文件名。
// String filename = file.getName();
response.setContentType("application/vnd.ms-excel; charset=utf-8");
response.setHeader("Content-Disposition","attachment;filename="+filename);
try {
OutputStream out = response.getOutputStream();
wb.write(out);
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 导入Excel
* @param excelFilePath
* @param userId
* @param projectId
* @return
* @throws IOException
* @throws ParseException
*/
public static List
String[][] str = getExcelStr(file,fileName,2); //读取excel
List
for (int k = 0; k < str.length; k++) {
String[] temp_str=str[k];
if(temp_str[0].equals("")){
break;
}
BonusDetail bonusDetail=new BonusDetail();
for (int s = 0; s < temp_str.length; s++) {
String number = temp_str[s];//编码
^^
^^
list.add(bonusDetail);
break;
}
}
return list;
}
/**
* 导出 Excel
* @param srcFilePath
* @param newFilePath
* @param data
* @param response
*/
public static void writeBonusDetailExcel(String srcFilePath,String newFilePath,List data, HttpServletResponse response){
try{
InputStream in = new FileInputStream(srcFilePath);
//读模板文件
wb = (Workbook)new XSSFWorkbook(in);
sheet = wb.getSheetAt(0);
sheet.getRow(1).getCell(0).setCellValue("编码");
if(data != null && data.size() > 0){
for(int i=0;i
^^ ^^^^^^^^^^^^
}
}
String filename = "fenhong-"+BaseUtil.formatDate(new Date(), "yyyyMMddHHmmss");
exportFile(filename,wb,srcFilePath,response);
}catch(FileNotFoundException e){
e.printStackTrace();
}catch(IOException e){
e.printStackTrace();
}
}
}