ExportExcelUtil.java
公共工具类
package com.ningpai.util;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.util.CellRangeAddress;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
/**
* 导出Excel工具类
*
* @author ChenDaiMing
* @since 2016/1/14
*/
public class ExportExcelUtil {
/**
* Excel导出
* @author ChenDaiMing
* @param response response
* @param title Excel标题
* 用户信息列表
* @param columnsName Excel列名称
* String[] rowsName = new String[]{"ID","账号","姓名"};
* @param dataList 导出的数据
* List< Object[] > dataList = new ArrayList< Object[] >();
* Object[] obj = new Object[3];
* obj[0] = ID数据;
* obj[1] = 账号数据;
* obj[2] = 姓名数据；
*/
public static void export(HttpServletResponse response, String title, String[] columnsName, List dataList) throws IOException {
//创建工作簿对象
HSSFWorkbook workbook = new HSSFWorkbook();
//创建工作表sheet
HSSFSheet sheet = workbook.createSheet(title);
//产生表格标题行
HSSFRow row = sheet.createRow(0);
HSSFCell cellTitle = row.createCell(0);
//sheet样式定义
//获取列头样式对象
HSSFCellStyle columnTopStyle = ExportExcelUtil.getColumnTopStyle(workbook);
HSSFCellStyle style = ExportExcelUtil.getStyle(workbook);
//合并
sheet.addMergedRegion(new CellRangeAddress(0, 1, 0, (columnsName.length - 1)));
cellTitle.setCellStyle(columnTopStyle);
cellTitle.setCellValue(title);
//定义所需列数
int columnNum = columnsName.length;
//创建列头行
HSSFRow rowName = sheet.createRow(2);
// 将列头设置到sheet的单元格中
for (int i = 0; i < columnNum; i++) {
HSSFCell cellName = rowName.createCell(i); //创建列头对应个数的单元格
cellName.setCellType(HSSFCell.CELL_TYPE_STRING); //设置列头单元格的数据类型
HSSFRichTextString text = new HSSFRichTextString(columnsName[i]);
cellName.setCellValue(text); //设置列头单元格的值
cellName.setCellStyle(columnTopStyle); //设置列头单元格样式
}
//将查询出的数据设置到sheet对应的单元格中
for (int i = 0; i < dataList.size(); i++) {
Object[] obj = dataList.get(i);//遍历每个对象
HSSFRow tempRow = sheet.createRow(i + 3);//创建所需的行数
for (int j = 0; j < obj.length; j++) {
HSSFCell cell = null; //设置单元格的数据类型
if (j == 0) {
cell = tempRow.createCell(j, HSSFCell.CELL_TYPE_NUMERIC);
cell.setCellValue(i + 1);
} else {
cell = tempRow.createCell(j, HSSFCell.CELL_TYPE_STRING);
if (!"".equals(obj[j]) && obj[j] != null) {
cell.setCellValue(obj[j].toString()); //设置单元格的值
}
}
cell.setCellStyle(style); //设置单元格样式
}
}
//让列宽随着导出的列长自动适应
for (int colNum = 0; colNum < columnNum; colNum++) {
int columnWidth = sheet.getColumnWidth(colNum) / 256;
for (int rowNum = 0; rowNum < sheet.getLastRowNum(); rowNum++) {
HSSFRow currentRow;
//当前行未被使用过
if (sheet.getRow(rowNum) == null) {
currentRow = sheet.createRow(rowNum);
} else {
currentRow = sheet.getRow(rowNum);
}
if (currentRow.getCell(colNum) != null) {
HSSFCell currentCell = currentRow.getCell(colNum);
if (currentCell.getCellType() == HSSFCell.CELL_TYPE_STRING) {
int length = currentCell.getStringCellValue().getBytes().length;
if (columnWidth < length) {
columnWidth = length;
}
}
}
}
if (colNum == 0) {
sheet.setColumnWidth(colNum, (columnWidth - 2) * 256);
} else {
sheet.setColumnWidth(colNum, (columnWidth + 4) * 256);
}
}
//输出到客户端进行下载
OutputStream out = null;
if (workbook != null) {
String fileName = "Excel-" + String.valueOf(System.currentTimeMillis()).substring(4, 13) + ".xls";
String headStr = "attachment; filename=" + fileName;
response.setContentType("APPLICATION/OCTET-STREAM");
response.setHeader("Content-Disposition", headStr);
out = response.getOutputStream();
workbook.write(out);
out.flush();
out.close();
}
}
/*
* 列头单元格样式
*/
private static HSSFCellStyle getColumnTopStyle(HSSFWorkbook workbook) {
// 设置字体
HSSFFont font = workbook.createFont();
//设置字体大小
font.setFontHeightInPoints((short) 11);
//字体加粗
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//设置字体名字
font.setFontName("Courier New");
//设置样式;
HSSFCellStyle style = workbook.createCellStyle();
//设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
//设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
//设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
//设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
//设置右边框;
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
//设置右边框颜色;
style.setRightBorderColor(HSSFColor.BLACK.index);
//设置顶边框;
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
//设置顶边框颜色;
style.setTopBorderColor(HSSFColor.BLACK.index);
//在样式用应用设置的字体;
style.setFont(font);
//设置自动换行;
style.setWrapText(false);
//设置水平对齐的样式为居中对齐;
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//设置垂直对齐的样式为居中对齐;
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
return style;
}
/*
* 列数据信息单元格样式
*/
private static HSSFCellStyle getStyle(HSSFWorkbook workbook) {
// 设置字体
HSSFFont font = workbook.createFont();
//设置字体名字
font.setFontName("Courier New");
//设置样式;
HSSFCellStyle style = workbook.createCellStyle();
//设置底边框;
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
//设置底边框颜色;
style.setBottomBorderColor(HSSFColor.BLACK.index);
//设置左边框;
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
//设置左边框颜色;
style.setLeftBorderColor(HSSFColor.BLACK.index);
//设置右边框;
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
//设置右边框颜色;
style.setRightBorderColor(HSSFColor.BLACK.index);
//设置顶边框;
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
//设置顶边框颜色;
style.setTopBorderColor(HSSFColor.BLACK.index);
//在样式用应用设置的字体;
style.setFont(font);
//设置自动换行;
style.setWrapText(false);
//设置水平对齐的样式为居中对齐;
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//设置垂直对齐的样式为居中对齐;
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
return style;
}
}
使用Controller.java
/**
* 导出销售额Excel
* @param response
* @param startTime
* @param endTime
* @author ChenDaiMing
*/
@RequestMapping("/exportSaleMoney")
public void exportSaleMoney(HttpServletResponse response,String startTime, String endTime){
String title = "销售额统计";
String[] columnsName = {"序号","日期","PC端销售额","移动端销售额","总销售额"};
List payTime = DateUtil.getAllDateBetween2Date(startTime, endTime);
List orderListAll = orderService.querySaleMoneyByDay(startTime, endTime,null);
List orderListPC = orderService.querySaleMoneyByDay(startTime, endTime,"0");
List orderListMobile = orderService.querySaleMoneyByDay(startTime, endTime,"1");
//总计list
List totalList = new ArrayList();
List pcTotalList = new ArrayList();
List mobileTotalList = new ArrayList();
//总价
BigDecimal total = new BigDecimal(0);
BigDecimal pcTotal = new BigDecimal(0);
BigDecimal mobileTotal = new BigDecimal(0);
//为导出的每日订单计算销售额，无销售额的为零
for(String time : payTime) {
boolean flag = false;
//计算总销售额
for(Order order : orderListAll) {
if(time.equals(DateUtil.dateToString(order.getPayTime(), "yyyy-MM-dd"))) {
flag = true;
totalList.add(order.getDayMoney());
total = total.add(order.getDayMoney());
}
}
if(!flag){
totalList.add(new BigDecimal(0));
}
flag = false;
//计算PC总销售额
for(Order order : orderListPC) {
if(time.equals(DateUtil.dateToString(order.getPayTime(), "yyyy-MM-dd"))) {
flag = true;
pcTotalList.add(order.getDayMoney());
pcTotal = pcTotal.add(order.getDayMoney());
}
}
if(!flag){
pcTotalList.add(new BigDecimal(0));
}
flag = false;
//计算移动端总销售额
for(Order order : orderListMobile) {
if(time.equals(DateUtil.dateToString(order.getPayTime(), "yyyy-MM-dd"))) {
flag = true;
mobileTotalList.add(order.getDayMoney());
mobileTotal = mobileTotal.add(order.getDayMoney());
}
}
if(!flag){
mobileTotalList.add(new BigDecimal(0));
}
flag = false;
}
//获取查询的订单数据
List dataList = new ArrayList<>();
//根据查询日期进行导出数据
for (int i = 0; i