POI格式化Cell样式

通过一个实例演示怎样通过POI设置Excel单元格的边框、字体、颜色、大小、下划线、合并、对齐方式。

Excel文件如下:

 

Java代码 复制代码 收藏代码 
package my.excel;   
  
import java.io.FileOutputStream;   
  
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.ss.util.CellRangeAddress;   
import org.apache.poi.xssf.usermodel.XSSFCellStyle;   
import org.apache.poi.xssf.usermodel.XSSFColor;   
import org.apache.poi.xssf.usermodel.XSSFWorkbook;   
  
 
public class CellFormatExcel {   
       
    public static void main(String[] args) {   
        try {   
            // 创建Excel表格工作簿   
            Workbook wb = new XSSFWorkbook();   
            Sheet sheet = wb.createSheet("表格单元格格式化");   
               
            //============================   
            //       设置单元格的字体   
            //============================   
            Row ztRow = sheet.createRow((short)0);   
            Cell ztCell = ztRow.createCell(0);   
            ztCell.setCellValue("中国");   
            // 创建单元格样式对象   
            XSSFCellStyle ztStyle = (XSSFCellStyle) wb.createCellStyle();   
            // 创建字体对象   
            Font ztFont = wb.createFont();   
            ztFont.setItalic(true);                     // 设置字体为斜体字   
            ztFont.setColor(Font.COLOR_RED);            // 将字体设置为“红色”   
            ztFont.setFontHeightInPoints((short)22);    // 将字体大小设置为18px   
            ztFont.setFontName("华文行楷");             // 将“华文行楷”字体应用到当前单元格上   
            ztFont.setUnderline(Font.U_DOUBLE);         // 添加(Font.U_SINGLE单条下划线/Font.U_DOUBLE双条下划线)   
//          ztFont.setStrikeout(true);                  // 是否添加删除线   
            ztStyle.setFont(ztFont);                    // 将字体应用到样式上面   
            ztCell.setCellStyle(ztStyle);               // 样式应用到该单元格上   
               
            //============================   
            //        设置单元格边框   
            //============================   
            Row borderRow = sheet.createRow(2);   
            Cell borderCell = borderRow.createCell(1);   
            borderCell.setCellValue("中国");   
            // 创建单元格样式对象   
            XSSFCellStyle borderStyle = (XSSFCellStyle)wb.createCellStyle();   
            // 设置单元格边框样式   
            // CellStyle.BORDER_DOUBLE      双边线   
            // CellStyle.BORDER_THIN        细边线   
            // CellStyle.BORDER_MEDIUM      中等边线   
            // CellStyle.BORDER_DASHED      虚线边线   
            // CellStyle.BORDER_HAIR        小圆点虚线边线   
            // CellStyle.BORDER_THICK       粗边线   
            borderStyle.setBorderBottom(CellStyle.BORDER_THICK);   
            borderStyle.setBorderTop(CellStyle.BORDER_DASHED);   
            borderStyle.setBorderLeft(CellStyle.BORDER_DOUBLE);   
            borderStyle.setBorderRight(CellStyle.BORDER_THIN);   
               
            // 设置单元格边框颜色   
            borderStyle.setBottomBorderColor(new XSSFColor(java.awt.Color.RED));   
            borderStyle.setTopBorderColor(new XSSFColor(java.awt.Color.GREEN));   
            borderStyle.setLeftBorderColor(new XSSFColor(java.awt.Color.BLUE));   
               
            borderCell.setCellStyle(borderStyle);   
               
            //============================   
            //      设置单元内容的对齐方式   
            //============================   
            Row alignRow = sheet.createRow(4);   
            Cell alignCell = alignRow.createCell(1);   
            alignCell.setCellValue("中国");   
               
            // 创建单元格样式对象   
            XSSFCellStyle alignStyle = (XSSFCellStyle)wb.createCellStyle();   
               
            // 设置单元格内容水平对其方式   
            // XSSFCellStyle.ALIGN_CENTER       居中对齐   
            // XSSFCellStyle.ALIGN_LEFT         左对齐   
            // XSSFCellStyle.ALIGN_RIGHT        右对齐   
            alignStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER);   
               
            // 设置单元格内容垂直对其方式   
            // XSSFCellStyle.VERTICAL_TOP       上对齐   
            // XSSFCellStyle.VERTICAL_CENTER    中对齐   
            // XSSFCellStyle.VERTICAL_BOTTOM    下对齐   
            alignStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER);   
               
            alignCell.setCellStyle(alignStyle);   
               
            //============================   
            //      设置单元格的高度和宽度   
            //============================   
            Row sizeRow = sheet.createRow(6);   
            sizeRow.setHeightInPoints(30);                  // 设置行的高度   
               
            Cell sizeCell = sizeRow.createCell(1);     
            String sizeCellValue = "《Java编程思想》";            // 字符串的长度为10,表示该字符串中有10个字符,忽略中英文   
            sizeCell.setCellValue(sizeCellValue);       
            // 设置单元格的长度为sizeCellVlue的长度。而sheet.setColumnWidth使用sizeCellVlue的字节数   
            // sizeCellValue.getBytes().length == 16   
            sheet.setColumnWidth(1, (sizeCellValue.getBytes().length) * 256 );   
               
            //============================   
            //      设置单元格自动换行   
            //============================   
            Row wrapRow = sheet.createRow(8);   
            Cell wrapCell = wrapRow.createCell(2);   
            wrapCell.setCellValue("宝剑锋从磨砺出,梅花香自苦寒来");   
               
            // 创建单元格样式对象   
            XSSFCellStyle wrapStyle = (XSSFCellStyle)wb.createCellStyle();   
            wrapStyle.setWrapText(true);                    // 设置单元格内容是否自动换行   
            wrapCell.setCellStyle(wrapStyle);   
               
            //============================   
            //         合并单元格列   
            //============================   
            Row regionRow = sheet.createRow(12);   
            Cell regionCell = regionRow.createCell(0);   
            regionCell.setCellValue("宝剑锋从磨砺出,梅花香自苦寒来");   
               
            // 合并第十三行中的A、B、C三列   
            CellRangeAddress region = new CellRangeAddress(12, 12, 0, 2); // 参数都是从O开始   
            sheet.addMergedRegion(region);   
               
            //============================   
            //         合并单元格行和列   
            //============================   
            Row regionRow2 = sheet.createRow(13);   
            Cell regionCell2 = regionRow2.createCell(3);   
            String region2Value = "宝剑锋从磨砺出,梅花香自苦寒来。"  
                                + "采得百花成蜜后,为谁辛苦为谁甜。"  
                                + "操千曲而后晓声,观千剑而后识器。"  
                                + "察己则可以知人,察今则可以知古。";   
            regionCell2.setCellValue(region2Value);   
               
            // 合并第十三行中的A、B、C三列   
            CellRangeAddress region2 = new CellRangeAddress(13, 17, 3, 7); // 参数都是从O开始   
            sheet.addMergedRegion(region2);   
               
            XSSFCellStyle region2Style = (XSSFCellStyle)wb.createCellStyle();   
            region2Style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);   
            region2Style.setWrapText(true);                     // 设置单元格内容是否自动换行   
            regionCell2.setCellStyle(region2Style);   
                           
            //============================   
            // 将Excel文件写入到磁盘上   
            //============================   
            FileOutputStream is = new FileOutputStream("document/CellFormatExcel.xlsx");   
            wb.write(is);   
            is.close();   
               
            System.out.println("写入成功,运行结束!");   
        } catch(Exception e) {   
            e.printStackTrace();   
        }   
    }   
posted @ 2016-08-17 09:31  疯子110  阅读(963)  评论(0编辑  收藏  举报