POI操作excel表格代码
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package cn.itcast.jk.controller.cargo.outproduct;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.CellRangeAddress;
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.ss.usermodel.Workbook;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import cn.itcast.jk.controller.BaseController;
import cn.itcast.jk.service.OutProductService;
import cn.itcast.jk.vo.OutProductVO;
import cn.itcast.util.DownloadUtil;
@Controller
public class OutProductController extends BaseController {
@Resource
OutProductService outProductService;
//转向输入年月的页面
@RequestMapping("/cargo/outproduct/toedit.action")
public String toedit(){
return "/cargo/outproduct/jOutProduct.jsp";
}
//模板打印
@RequestMapping("/cargo/outproduct/printTemplate.action")
public void printTemplate(String inputDate, HttpServletRequest request, HttpServletResponse response) throws IOException{
List<OutProductVO> dataList = outProductService.find(inputDate);
//打开模板文件
String path = request.getSession().getServletContext().getRealPath("/"); //jdk1.8 bug 在linux下不带后面你写的路径
String tempFile = path + "/make/xlsprint/tOUTPRODUCT.xlsx";
Workbook wb = new XSSFWorkbook(new FileInputStream(new File(tempFile)));
//写入业务内容
Sheet sheet = wb.getSheetAt(0); //获得工作表sheet
Row nRow = null;
Cell nCell = null;
int rowNo = 2;
int colNo = 1;
//获取样式
nRow = sheet.getRow(2); //获得行对象
nCell = nRow.getCell(1); //获取单元格对象
CellStyle customNameStyle = nCell.getCellStyle(); //获取到样式
nCell = nRow.getCell(2);
CellStyle contractNoStyle = nCell.getCellStyle();
nCell = nRow.getCell(3);
CellStyle productNoStyle = nCell.getCellStyle();
nCell = nRow.getCell(4);
CellStyle cnumberStyle = nCell.getCellStyle();
nCell = nRow.getCell(5);
CellStyle factoryStyle = nCell.getCellStyle();
nCell = nRow.getCell(6);
CellStyle extStyle = nCell.getCellStyle();
nCell = nRow.getCell(7);
CellStyle dateStyle = nCell.getCellStyle();
nCell = nRow.getCell(9);
CellStyle tradeStyle = nCell.getCellStyle();
//大标题
nRow = sheet.getRow(0);
nCell = nRow.getCell(1);
nCell.setCellValue(inputDate.replaceFirst("-0", "-").replaceFirst("-", "年") + "月份出货表"); //yyyy-MM
//处理数据
for(int x=0;x<800;x++){
for(int j=0;j<dataList.size();j++){
System.out.println(rowNo);
colNo = 1; //列号初始化
OutProductVO op = dataList.get(j); //获取出货表对象
nRow = sheet.createRow(rowNo++);
nRow.setHeightInPoints(24);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getCustomName());
nCell.setCellStyle(customNameStyle); //设置样式
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getContractNo());
nCell.setCellStyle(contractNoStyle);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getProductNo());
nCell.setCellStyle(productNoStyle);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getCnumber());
nCell.setCellStyle(cnumberStyle);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getFactoryName());
nCell.setCellStyle(factoryStyle);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getExts());
nCell.setCellStyle(extStyle);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getDeliveryPeriod());
nCell.setCellStyle(dateStyle);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getShipTime());
nCell.setCellStyle(dateStyle);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getTradeTerms());
nCell.setCellStyle(tradeStyle);
}
}
//下载
DownloadUtil du = new DownloadUtil();
ByteArrayOutputStream os = new ByteArrayOutputStream();
wb.write(os);
du.download(os, response, "出货表.xlsx");
}
@RequestMapping("/cargo/outproduct/print.action")
public void print(String inputDate, HttpServletResponse response) throws IOException{ //inputDate 格式：yyyy-MM
List<OutProductVO> dataList = outProductService.find(inputDate);
Workbook wb = new HSSFWorkbook();
Sheet sheet = wb.createSheet();
Row nRow = null;
Cell nCell = null;
int rowNo = 0; //行号
int colNo = 1; //列号
//声明样式对象和字体对象
CellStyle nStyle = wb.createCellStyle();
Font nFont = wb.createFont();
sheet.setColumnWidth(0, 2*272); //列宽
sheet.setColumnWidth(1, 26*272); //列宽 BUG，API底层设置不够精确 256；272近似
sheet.setColumnWidth(2, 12*272);
sheet.setColumnWidth(3, 29*272);
sheet.setColumnWidth(4, 10*272);
sheet.setColumnWidth(5, 12*272);
sheet.setColumnWidth(6, 8*272);
sheet.setColumnWidth(7, 10*272);
sheet.setColumnWidth(8, 10*272);
sheet.setColumnWidth(9, 8*272);
//大标题，合并单元格
sheet.addMergedRegion(new CellRangeAddress(0,0,1,9)); //开始行，结束行，开始列，结束列
//合并单元格的内容是写在合并前第一个单元格中
nRow = sheet.createRow(rowNo++);
nRow.setHeightInPoints(36); //行高
nCell = nRow.createCell(1);
nCell.setCellValue(inputDate.replaceFirst("-0", "-").replaceFirst("-", "年") + "月份出货表"); //yyyy-MM
nCell.setCellStyle(this.bigTitle(wb, nStyle, nFont));
String[] title = new String[]{"客户","订单号","货号","数量","工厂","附件","工厂交期","船期","贸易条款"};
nRow = sheet.createRow(rowNo++);
nRow.setHeightInPoints(26.25f);
//初始化
nStyle = wb.createCellStyle();
nFont = wb.createFont();
for(int i=0;i<title.length;i++){
nCell = nRow.createCell(i+1);
nCell.setCellValue(title[i]);
nCell.setCellStyle(this.title(wb, nStyle, nFont));
}
//初始化
nStyle = wb.createCellStyle();
nFont = wb.createFont();
//处理数据
for(int j=0;j<dataList.size();j++){
colNo = 1; //列号初始化
OutProductVO op = dataList.get(j); //获取出货表对象
nRow = sheet.createRow(rowNo++);
nRow.setHeightInPoints(24);
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getCustomName());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getContractNo());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getProductNo());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getCnumber());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getFactoryName());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getExts());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getDeliveryPeriod());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getShipTime());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
nCell = nRow.createCell(colNo++);
nCell.setCellValue(op.getTradeTerms());
nCell.setCellStyle(this.text(wb, nStyle, nFont));
}
//OutputStream os = new FileOutputStream(new File("c:\\outproduct.xls"));
//wb.write(os);
//os.flush();
//os.close();
//下载
DownloadUtil du = new DownloadUtil();
ByteArrayOutputStream os = new ByteArrayOutputStream();
wb.write(os);
du.download(os, response, "出货表.xls");
}
//大标题样式
public CellStyle bigTitle(Workbook wb, CellStyle nStyle, Font nFont){
nFont.setFontName("宋体");
nFont.setFontHeightInPoints((short)16);
nFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); //字体加粗
nStyle.setAlignment(CellStyle.ALIGN_CENTER); //横向居中
nStyle.setVerticalAlignment(CellStyle.VERTICAL_CENTER); //纵向居中
nStyle.setFont(nFont);
return nStyle;
}
//标题样式
public CellStyle title(Workbook wb, CellStyle nStyle, Font nFont){
nFont.setFontName("黑体");
nFont.setFontHeightInPoints((short)12);
nStyle.setAlignment(CellStyle.ALIGN_CENTER); //横向居中
nStyle.setVerticalAlignment(CellStyle.VERTICAL_CENTER); //纵向居中
//表格线
nStyle.setBorderTop(CellStyle.BORDER_THIN); //上细线
nStyle.setBorderBottom(CellStyle.BORDER_THIN); //下细线
nStyle.setBorderLeft(CellStyle.BORDER_THIN); //左细线
nStyle.setBorderRight(CellStyle.BORDER_THIN); //右细线
nStyle.setFont(nFont);
return nStyle;
}
//文字样式
public CellStyle text(Workbook wb, CellStyle nStyle, Font nFont){
nFont.setFontName("Times New Roman");
nFont.setFontHeightInPoints((short)10);
nStyle.setVerticalAlignment(CellStyle.VERTICAL_CENTER); //纵向居中
//表格线
nStyle.setBorderTop(CellStyle.BORDER_THIN); //上细线
nStyle.setBorderBottom(CellStyle.BORDER_THIN); //下细线
nStyle.setBorderLeft(CellStyle.BORDER_THIN); //左细线
nStyle.setBorderRight(CellStyle.BORDER_THIN); //右细线
nStyle.setFont(nFont);
return nStyle;
}
}
下载代码：
package util;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
public class DownloadUtil {
/**
* @param filePath 要下载的文件路径
* @param returnName 返回的文件名
* @param response HttpServletResponse
* @param delFlag 是否删除文件
*/
protected void download(String filePath,String returnName,HttpServletResponse response,boolean delFlag){
this.prototypeDownload(new File(filePath), returnName, response, delFlag);
}
/**
* @param file 要下载的文件
* @param returnName 返回的文件名
* @param response HttpServletResponse
* @param delFlag 是否删除文件
*/
protected void download(File file,String returnName,HttpServletResponse response,boolean delFlag){
this.prototypeDownload(file, returnName, response, delFlag);
}
/**
* @param file 要下载的文件
* @param returnName 返回的文件名
* @param response HttpServletResponse
* @param delFlag 是否删除文件
*/
public void prototypeDownload(File file,String returnName,HttpServletResponse response,boolean delFlag){
// 下载文件
FileInputStream inputStream = null;
ServletOutputStream outputStream = null;
try {
if(!file.exists()) return;
response.reset();
//设置响应类型 PDF文件为"application/pdf"，WORD文件为："application/msword"， EXCEL文件为："application/vnd.ms-excel"。
response.setContentType("application/octet-stream;charset=utf-8");
//设置响应的文件名称,并转换成中文编码
//returnName = URLEncoder.encode(returnName,"UTF-8");
returnName = response.encodeURL(new String(returnName.getBytes(),"iso8859-1")); //保存的文件名,必须和页面编码一致,否则乱码
//attachment作为附件下载；inline客户端机器有安装匹配程序，则直接打开；注意改变配置，清除缓存，否则可能不能看到效果
response.addHeader("Content-Disposition", "attachment;filename="+returnName);
//将文件读入响应流
inputStream = new FileInputStream(file);
outputStream = response.getOutputStream();
int length = 1024;
int readLength=0;
byte buf[] = new byte[1024];
readLength = inputStream.read(buf, 0, length);
while (readLength != -1) {
outputStream.write(buf, 0, readLength);
readLength = inputStream.read(buf, 0, length);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
outputStream.flush();
} catch (IOException e) {
e.printStackTrace();
}
try {
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
//删除原文件
if(delFlag) {
file.delete();
}
}
}
/**
* by tony 2013-10-17
* @param byteArrayOutputStream 将文件内容写入ByteArrayOutputStream
* @param response HttpServletResponse 写入response
* @param returnName 返回的文件名
*/
public void download(ByteArrayOutputStream byteArrayOutputStream, HttpServletResponse response, String returnName) throws IOException{
response.setContentType("application/octet-stream;charset=utf-8");
returnName = response.encodeURL(new String(returnName.getBytes(),"iso8859-1")); //保存的文件名,必须和页面编码一致,否则乱码
response.addHeader("Content-Disposition", "attachment;filename=" + returnName);
response.setContentLength(byteArrayOutputStream.size());
ServletOutputStream outputstream = response.getOutputStream(); //取得输出流
byteArrayOutputStream.writeTo(outputstream); //写到输出流
byteArrayOutputStream.close(); //关闭
outputstream.flush(); //刷数据
}
}
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