//autoSizeColumn()方法自动调整excel列宽
importjava.io.FileOutputStream; importorg.apache.poi.hssf.usermodel.HSSFCell; importorg.apache.poi.hssf.usermodel.HSSFCellStyle; importorg.apache.poi.hssf.usermodel.HSSFFont; importorg.apache.poi.hssf.usermodel.HSSFRow; importorg.apache.poi.hssf.usermodel.HSSFSheet; importorg.apache.poi.hssf.usermodel.HSSFWorkbook; importorg.apache.poi.hssf.usermodel.HSSFRichTextString; importorg.apache.poi.hssf.usermodel.HSSFDataFormat; importorg.apache.poi.hssf.usermodel.HSSFComment; importorg.apache.poi.hssf.usermodel.HSSFPatriarch; importorg.apache.poi.hssf.usermodel.HSSFClientAnchor; publicclassPoiCreateExcelTest { publicstaticvoidmain(String[] args) { //创建新的Excel 工作簿 HSSFWorkbook workbook =newHSSFWorkbook(); //在Excel工作簿中建一工作表,其名为缺省值, 也可以指定Sheet名称 HSSFSheet sheet =workbook.createSheet(); //HSSFSheet sheet = workbook.createSheet("SheetName"); //用于格式化单元格的数据 HSSFDataFormat format =workbook.createDataFormat(); //创建新行(row),并将单元格(cell)放入其中. 行号从0开始计算. HSSFRow row =sheet.createRow((short) 1); //设置字体 HSSFFont font =workbook.createFont(); font.setFontHeightInPoints((short) 20); //字体高度 font.setColor(HSSFFont.COLOR_RED); //字体颜色 font.setFontName("黑体"); //字体 font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); //宽度 font.setItalic(true); //是否使用斜体 // font.setStrikeout(true); //是否使用划线 //设置单元格类型 HSSFCellStyle cellStyle =workbook.createCellStyle(); cellStyle.setFont(font); cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); //水平布局:居中 cellStyle.setWrapText(true); //添加单元格注释 //创建HSSFPatriarch对象,HSSFPatriarch是所有注释的容器. HSSFPatriarch patr =sheet.createDrawingPatriarch(); //定义注释的大小和位置,详见文档 HSSFComment comment =patr.createComment(newHSSFClientAnchor(0, 0, 0, 0, (short)4, 2, (short) 6, 5)); //设置注释内容 comment.setString(newHSSFRichTextString("可以在POI中添加注释!")); //设置注释作者. 当鼠标移动到单元格上是可以在状态栏中看到该内容. comment.setAuthor("Xuys."); //创建单元格 HSSFCell cell =row.createCell((short) 1); HSSFRichTextString hssfString =newHSSFRichTextString("Hello World!"); cell.setCellValue(hssfString);//设置单元格内容 cell.setCellStyle(cellStyle);//设置单元格样式 cell.setCellType(HSSFCell.CELL_TYPE_STRING);//指定单元格格式:数值、公式或字符串 cell.setCellComment(comment);//添加注释 //格式化数据 row =sheet.createRow((short) 2); cell =row.createCell((short) 2); cell.setCellValue(11111.25); cellStyle =workbook.createCellStyle(); cellStyle.setDataFormat(format.getFormat("0.0")); cell.setCellStyle(cellStyle); row =sheet.createRow((short) 3); cell =row.createCell((short) 3); cell.setCellValue(9736279.073); cellStyle =workbook.createCellStyle(); cellStyle.setDataFormat(format.getFormat("#,##0.0000")); cell.setCellStyle(cellStyle); sheet.autoSizeColumn((short)0); //调整第一列宽度 sheet.autoSizeColumn((short)1); //调整第二列宽度 sheet.autoSizeColumn((short)2); //调整第三列宽度 sheet.autoSizeColumn((short)3); //调整第四列宽度 try{ FileOutputStream fileOut =newFileOutputStream("C:3.xls"); workbook.write(fileOut); fileOut.close(); }catch(Exception e) { System.out.println(e.toString()); } } }