poi 调整excel 调整列宽

原文地址:http://blog.csdn.net/zc16131/article/details/4196012

//autoSizeColumn()方法自动调整excel列宽

import java.io.FileOutputStream;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
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.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFComment;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;

  public class PoiCreateExcelTest ... {
       public static void main(String[] args) ... {
           /** */ /**
           * @see <a href=" http://poi.apache.org/hssf/quick-guide.html #NewWorkbook">For more</a>
           */        
          // 创建新的Excel 工作簿
          HSSFWorkbook workbook = new HSSFWorkbook();
        
          // 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( new HSSFClientAnchor( 0 , 0 , 0 , 0 , ( short ) 4 , 2 , ( short ) 6 , 5 ));
          // 设置注释内容
          comment.setString( new HSSFRichTextString( " 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 = new HSSFRichTextString( " 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 = new FileOutputStream( " C:/3.xls " );
              workbook.write(fileOut);
              fileOut.close();
           } catch (Exception e) ... {
              System.out.println(e.toString());
          }
      }

}

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