1、js方法
function exporterExcel(){
var no=$("#serchNo").val();
var machineImei=$("#serchMachineImei").val();
var orderNo=$("#serchOrderNo").val();
var status=$("#serchStatus").val();
var dealResult=$("#serchDealResult").val();
var url="../saleAfterMaintainAction/exporterExcel.shtml?queryParam['no']="+no+"&queryParam['machineImei']="+machineImei+"&queryParam['orderNo']="+orderNo+"&queryParam['status']="+status+"&queryParam['dealResult']="+dealResult;
window.open(url);
}
2、Action
@RequestMapping(value = "/exporterExcel")
@ResponseBody
public ResultVO exportExcel(QueryVO queryVO, HttpServletRequest request, HttpServletResponse response) {
saleAfterMaintainService.exportExcel(queryVO, request, response);
return success("导出成功");
}
3、Service
public void exportExcel(QueryVO queryVO, HttpServletRequest req, HttpServletResponse res) {
int totalCount = saleAfterMaintainDao.queryCount(queryVO);//数据库查询数据条数
int rows=10;
long start = System.currentTimeMillis();
try {
LinkedHashMap<String, String> headMap = new LinkedHashMap<String, String>();
headMap.put("no", "保修单号");
headMap.put("name", "姓名");
headMap.put("tel", "电话");
headMap.put("address", "地址");
headMap.put("reason", "保修原因");
headMap.put("machineImei", "设备IMEI");
headMap.put("orderNo", "对应订单号");
headMap.put("status", "状态");
headMap.put("dealResult", "处理结果");
headMap.put("createTime", "创建时间");
// 开始excel生成
SXSSFWorkbook wb = new SXSSFWorkbook(100);
Sheet sh = wb.createSheet();
// 表格样式
CellStyle cellStyle = ExportExcel.getContentStyle(wb);
// 设置表格宽度
setShColumnWidth(sh);
// 循环数据
Row row = sh.createRow(0);
int headNum = 0;
for (String key : headMap.keySet()) {
Cell cell = row.createCell(headNum);
cell.setCellValue(headMap.get(key));
cell.setCellStyle(cellStyle);
headNum++;
}
rows = 1000;
int pageCount = totalCount % rows == 0 ? totalCount / rows : totalCount / rows + 1;
int rowNum = 1;
for (int i = 0; i < pageCount; i++) {
List<Map<String, Object>> pageList = saleAfterMaintainDao.findPageReturn(queryVO, pageCount, rows);//数据库查询数据
for (Map<String, Object> map : pageList) {
row = sh.createRow(rowNum);
int index = 0;
for (String key : headMap.keySet()) {
Cell cell = row.createCell(index);
ExportExcel.setCellValue(cell, map, key);
cell.setCellStyle(cellStyle);
index++;
}
rowNum++;
}
}
String prePath = req.getSession().getServletContext().getRealPath("/");
File file = new File(prePath);
if (!file.exists())
file.mkdirs();
String filePath = prePath + "保修单.xlsx";
FileOutputStream out = new FileOutputStream(filePath);
wb.write(out);
out.close();
wb.dispose();
ExportExcel.openExcel(req, res, "保修单.xlsx");
LogUtil.writeLog("导出excel的时间:" + (System.currentTimeMillis() - start) / 1000 + "秒");
} catch (Exception e) {
LogUtil.writeErrorLog(e.getMessage(), e);
}
}
/**
* 设置表格的宽度
*
* @param sh
*/
private void setShColumnWidth(Sheet sh) {
sh.setColumnWidth(0, 6000);
sh.setColumnWidth(1, 4000);
sh.setColumnWidth(2, 4000);
sh.setColumnWidth(3, 4000);
sh.setColumnWidth(4, 5000);
sh.setColumnWidth(5, 5000);
sh.setColumnWidth(6, 3000);
sh.setColumnWidth(7, 2000);
sh.setColumnWidth(8, 5000);
sh.setColumnWidth(9, 2000);
sh.setColumnWidth(10, 4000);
sh.setColumnWidth(11, 6000);
sh.setColumnWidth(12, 5000);
sh.setColumnWidth(13, 5000);
sh.setColumnWidth(14, 5000);
sh.setColumnWidth(15, 5000);
sh.setColumnWidth(16, 4000);
sh.setColumnWidth(17, 5000);
}
4、ExportExcel 类
package com.xg.util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import com.pay.util.LogUtil;
import com.xg.dao.BaseDao;
import com.xg.framework.vo.query.QueryVO;
public class ExportExcel {
/**
* 弹出打开框
*
* @param request
* @param response
* @param downName
*/
public static void openExcel(HttpServletRequest request, HttpServletResponse response, String downName) {
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
String filepath = null;
try {
filepath = request.getSession().getServletContext().getRealPath("/") + downName;
bis = new BufferedInputStream(new FileInputStream(new File(filepath)));
bos = new BufferedOutputStream(response.getOutputStream());
response.setHeader("Content-disposition", "attachment;filename=" + URLEncoder.encode(downName, "utf-8"));
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = bis.read(buffer, 0, 8192)) != -1) {
bos.write(buffer, 0, bytesRead);
}
bos.flush();
} catch (FileNotFoundException e) {
LogUtil.writeErrorLog(e.getMessage(), e);
} catch (IOException e) {
LogUtil.writeErrorLog(e.getMessage(), e);
} finally {
if (null != bis)
try {
bis.close();
} catch (IOException e) {
LogUtil.writeErrorLog(e.getMessage(), e);
}
if (null != bos)
try {
bos.close();
} catch (IOException e) {
LogUtil.writeErrorLog(e.getMessage(), e);
}
new File(filepath).delete();
}
}
public static CellStyle getContentStyle(SXSSFWorkbook wb) {
CellStyle cellStyle = wb.createCellStyle();
cellStyle.setBorderBottom(CellStyle.BORDER_THIN); // 下边框
cellStyle.setBorderLeft(CellStyle.BORDER_THIN);// 左边框
cellStyle.setBorderTop(CellStyle.BORDER_THIN);// 上边框
cellStyle.setBorderRight(CellStyle.BORDER_THIN);// 右边框
cellStyle.setAlignment(CellStyle.ALIGN_CENTER); // 水平居中
cellStyle.setAlignment(CellStyle.VERTICAL_CENTER); // 垂直居中
Font font = wb.createFont();
font.setFontName("宋体");// 设置字体
font.setFontHeightInPoints((short) 10);// 设置字体大小
cellStyle.setFont(font);
return cellStyle;
}
/**
* 表格赋值
*
* @param cell
* @param map
* @param key
*/
public static void setCellValue(Cell cell, Map<String, Object> map, String key) {
Object value = map.get(key);
if (value == null) {
cell.setCellValue("");
} else if (value instanceof Double) {
cell.setCellValue(((Double) value).doubleValue());
} else if (value instanceof Date) {
Date date = (Date) value;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
cell.setCellValue(sdf.format(date));
} else {
String reg = "^\\d+$";
String keyValue = value.toString();
boolean isNum = keyValue.matches(reg);
if (isNum) {
cell.setCellValue(Double.valueOf(keyValue));
} else {
cell.setCellValue(value.toString());
}
}
}
/**
* excel导出
*
* @param excelWith
*
* @param machineComboOrderDao
* @param queryVO
* @param req
* @param res
* @param headMap
* @param excelName
* @throws FileNotFoundException
* @throws IOException
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void doExportData(BaseDao baseDao, int[] excelWith, QueryVO queryVO, HttpServletRequest req, HttpServletResponse res, LinkedHashMap<String, String> headMap, String excelName) throws FileNotFoundException, IOException {
// 总条数
int totalCount = baseDao.queryCount(queryVO);
int rows = 10;
long start = System.currentTimeMillis();
// 开始excel生成
SXSSFWorkbook wb = new SXSSFWorkbook(100);
Sheet sh = wb.createSheet();
// 表格样式
CellStyle cellStyle = getContentStyle(wb);
// 设置表格宽度
setShColumnWidth(sh, excelWith);
// 循环数据
Row row = sh.createRow(0);
int headNum = 0;
for (String key : headMap.keySet()) {
Cell cell = row.createCell(headNum);
cell.setCellValue(headMap.get(key));
cell.setCellStyle(cellStyle);
headNum++;
}
rows = 1000;
int pageCount = totalCount % rows == 0 ? totalCount / rows : totalCount / rows + 1;
int rowNum = 1;
for (int i = 0; i < pageCount; i++) {
List<Map<String, Object>> pageList = baseDao.findPageReturn(queryVO, pageCount, rows);
for (Map<String, Object> map : pageList) {
row = sh.createRow(rowNum);
int index = 0;
for (String key : headMap.keySet()) {
Cell cell = row.createCell(index);
ExportExcel.setCellValue(cell, map, key);
cell.setCellStyle(cellStyle);
index++;
}
rowNum++;
}
}
String prePath = req.getSession().getServletContext().getRealPath("/");
File file = new File(prePath);
if (!file.exists())
file.mkdirs();
String filePath = prePath + excelName;
FileOutputStream out = new FileOutputStream(filePath);
wb.write(out);
out.close();
wb.dispose();
openExcel(req, res, excelName);
LogUtil.writeLog("导出excel的时间:" + (System.currentTimeMillis() - start) / 1000 + "秒");//记入日志
}
/**
* 设置表格宽度
*
* @param sh
* @param excelWith
*/
private static void setShColumnWidth(Sheet sh, int[] excelWith) {
for (int i = 0; i < excelWith.length; i++) {
sh.setColumnWidth(i, excelWith[i]);
}
}
}
5、jar包
poi-examples-3.13-20150929.jar
poi-excelant-3.13-20150929.jar
poi-ooxml-3.13-20150929.jar
poi-ooxml-schemas-3.13-20150929.jar
poi-scratchpad-3.13-20150929.jar
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