poi生成excel代码示例
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HSSFWorkbook workBook = new HSSFWorkbook();
HSSFSheet sheet = workBook.createSheet();
// 设置excel每列宽度
sheet.setColumnWidth(0, 5000);
sheet.setColumnWidth(1, 5000);
sheet.setColumnWidth(2, 5000);
sheet.setColumnWidth(3, 5000);
sheet.setColumnWidth(4, 5000);
sheet.setColumnWidth(5, 5000);
List<HSSFRow> rsl = new ArrayList<HSSFRow>();
HSSFRow curRow2 = sheet.createRow(0);
curRow2.setHeight((short)500);
rsl.add(curRow2);
{
// 创建字体样式
HSSFFont font = workBook.createFont();
font.setFontName("Verdana");
font.setBoldweight((short) 100);
font.setFontHeight((short) 300);
font.setColor(HSSFColor.BLUE.index);
// 创建单元格样式
HSSFCellStyle style = workBook.createCellStyle();
style.setFont(font);// 设置字体
HSSFCell cell0 = rsl.get(0).createCell(0);
cell0.setCellValue("承建单位");
cell0.setCellStyle(style);
HSSFCell cell1 = rsl.get(0).createCell(1);
cell1.setCellValue("承建类别");
cell1.setCellStyle(style);
HSSFCell cell2 = rsl.get(0).createCell(2);
cell2.setCellValue("未审理");
cell2.setCellStyle(style);
HSSFCell cell3 = rsl.get(0).createCell(3);
cell3.setCellValue("审理中");
cell3.setCellStyle(style);
HSSFCell cell4 = rsl.get(0).createCell(4);
cell4.setCellValue("审理完毕");
cell4.setCellStyle(style);
HSSFCell cell5 = rsl.get(0).createCell(5);
cell5.setCellValue("汇总");
cell5.setCellStyle(style);
}
for (int i = 0; i < retList.size(); i++) {
HSSFRow curRow = sheet.createRow(i+1);
rsl.add(curRow);
Map<String, String> im = retList.get(i);
HSSFCell cell0 = rsl.get(i+1).createCell(0);
cell0.setCellValue(im.get("GKDW"));
HSSFCell cell1 = rsl.get(i+1).createCell(1);
cell1.setCellValue(new String(im.get("CJLB")));
HSSFCell cell2 = rsl.get(i+1).createCell(2);
Object o2 = im.get("AUDITBEFORE");
cell2.setCellValue(o2.toString());
HSSFCell cell3 = rsl.get(i+1).createCell(3);
Object o3 = im.get("AUDITING");
cell3.setCellValue(o3.toString());
HSSFCell cell4 = rsl.get(i+1).createCell(4);
Object o4 = im.get("AUDITING");
cell4.setCellValue(o4.toString());
HSSFCell cell5 = rsl.get(i+1).createCell(5);
Object o5 = im.get("AUDITALL");
cell5.setCellValue(o5.toString());
}
// FileOutputStream fileOut = new FileOutputStream(new File(
// "d:/ttbb.xls"));
//
// fileOut.close();
ServletOutputStream os = response.getOutputStream();
response.setContentType("application/x-download");
response.addHeader("Content-Disposition","attachment;filename=download.xls");
workBook.write(os);
其它参考资料:
- package com.test;
- import java.io.FileOutputStream;
- import java.util.Date;
- import org.apache.poi.hssf.usermodel.HSSFCell;
- import org.apache.poi.hssf.usermodel.HSSFCellStyle;
- import org.apache.poi.hssf.usermodel.HSSFDataFormat;
- import org.apache.poi.hssf.usermodel.HSSFFont;
- import org.apache.poi.hssf.usermodel.HSSFHyperlink;
- import org.apache.poi.hssf.usermodel.HSSFRow;
- import org.apache.poi.hssf.usermodel.HSSFSheet;
- import org.apache.poi.hssf.usermodel.HSSFWorkbook;
- import org.apache.poi.hssf.util.HSSFColor;
- import org.apache.poi.ss.util.CellRangeAddress;
- public class PoiCreateExcel {
- public static void main(String[] args) throws Exception {
- // 创建Excel的工作书册 Workbook,对应到一个excel文档
- HSSFWorkbook wb = new HSSFWorkbook();
- // 创建Excel的工作sheet,对应到一个excel文档的tab
- HSSFSheet sheet = wb.createSheet("sheet1");
- // 设置excel每列宽度
- sheet.setColumnWidth(0, 4000);
- sheet.setColumnWidth(1, 3500);
- // 创建字体样式
- HSSFFont font = wb.createFont();
- font.setFontName("Verdana");
- font.setBoldweight((short) 100);
- font.setFontHeight((short) 300);
- font.setColor(HSSFColor.BLUE.index);
- // 创建单元格样式
- HSSFCellStyle style = wb.createCellStyle();
- style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
- style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
- style.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index);
- style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
- // 设置边框
- style.setBottomBorderColor(HSSFColor.RED.index);
- style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
- style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
- style.setBorderRight(HSSFCellStyle.BORDER_THIN);
- style.setBorderTop(HSSFCellStyle.BORDER_THIN);
- style.setFont(font);// 设置字体
- // 创建Excel的sheet的一行
- HSSFRow row = sheet.createRow(0);
- row.setHeight((short) 500);// 设定行的高度
- // 创建一个Excel的单元格
- HSSFCell cell = row.createCell(0);
- // 合并单元格(startRow,endRow,startColumn,endColumn)
- sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, 2));
- // 给Excel的单元格设置样式和赋值
- cell.setCellStyle(style);
- cell.setCellValue("hello world");
- // 设置单元格内容格式
- HSSFCellStyle style1 = wb.createCellStyle();
- style1.setDataFormat(HSSFDataFormat.getBuiltinFormat("h:mm:ss"));
- style1.setWrapText(true);// 自动换行
- row = sheet.createRow(1);
- // 设置单元格的样式格式
- cell = row.createCell(0);
- cell.setCellStyle(style1);
- cell.setCellValue(new Date());
- // 创建超链接
- HSSFHyperlink link = new HSSFHyperlink(HSSFHyperlink.LINK_URL);
- link.setAddress("http://www.baidu.com");
- cell = row.createCell(1);
- cell.setCellValue("百度");
- cell.setHyperlink(link);// 设定单元格的链接
- FileOutputStream os = new FileOutputStream("D:\\report\\workbook.xls");
- wb.write(os);
- os.close();
- }
- }
注:HSSFWorkbook,XSSFWorkbook的区别:前者是解析出来excel 2007 以前版本的,后缀名为xls的,后者是解析excel 2007 版的,后缀名为xlsx。
文章来源:http://hi.baidu.com/suny%5Fduan/blog/item/d528d5112b03cff0c3ce79a6.html
2、有模板,文件头标题都写好,只要循环添加数据的方法
- package com.test;
- import java.io.FileInputStream;
- import java.io.FileNotFoundException;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import org.apache.poi.hssf.usermodel.HSSFWorkbook;
- import org.apache.poi.ss.usermodel.Cell;
- import org.apache.poi.ss.usermodel.CellStyle;
- 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.ss.util.CellRangeAddress;
- public class PoiTestExcel {
- /**
- * @param args
- */
- public static void main(String[] args) {
- // TODO Auto-generated method stub
- try {
- InputStream in = new FileInputStream("D:\\report\\1111.xls");
- Workbook work = new HSSFWorkbook(in);
- // 得到excel的第0张表
- Sheet sheet = work.getSheetAt(0);
- // 得到第1行的第一个单元格的样式
- Row rowCellStyle = sheet.getRow(1);
- CellStyle columnOne = rowCellStyle.getCell(0).getCellStyle();
- // 这里面的行和列的数法与计算机里的一样,从0开始是第一
- // 填充title数据
- Row row = sheet.getRow(0);
- Cell cell = row.getCell(0);
- cell.setCellValue("2010年花名测");
- int i = 2;//计数器
- int number = 0;
- // 得到行,并填充数据和表格样式
- for (;i < 10; i++) {
- row = sheet.createRow(i);// 得到行
- cell = row.createCell(0);// 得到第0个单元格
- cell.setCellValue("琳"+i);// 填充值
- cell.setCellStyle(columnOne);// 填充样式
- cell = row.createCell(1);
- cell.setCellValue("女");
- cell.setCellStyle(columnOne);// 填充样式
- cell = row.createCell(2);
- cell.setCellValue(i+20);
- cell.setCellStyle(columnOne);// 填充样式
- // .....给每个单元格填充数据和样式
- number++;
- }
- //创建每个单元格,添加样式,最后合并
- row = sheet.createRow(i);
- cell = row.createCell(0);
- cell.setCellValue("总计:" + number + "个学生");// 填充值
- cell.setCellStyle(columnOne);
- cell = row.createCell(1);
- cell.setCellStyle(columnOne);
- cell = row.createCell(2);
- cell.setCellStyle(columnOne);
- // 合并单元格
- sheet.addMergedRegion(new CellRangeAddress(i,i,0,2));
- FileOutputStream os = new FileOutputStream("D:\\report\\workbook.xls");
- work.write(os);
- os.close();
- } catch (FileNotFoundException e) {
- System.out.println("文件路径错误");
- e.printStackTrace();
- } catch (IOException e) {
- System.out.println("文件输入流错误");
- e.printStackTrace();
- }
- }
- }
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