jxl导出excel（合并单元格）

Demo

import java.io.*;
import jxl.*;
import jxl.format.UnderlineStyle;
import jxl.write.*;
public class CreateXLS {
    public static void main(String args[]) {
        try {
            //打开文件
            WritableWorkbook book= Workbook.createWorkbook(new File("测试.xls"));
            //生成名为“第一页”的工作表，参数0表示这是第一页
            WritableSheet sheetOne=book.createSheet("第一页",0);

            /**
             * 定义单元格样式
             */
            WritableFont wf_title = new WritableFont(WritableFont.ARIAL, 11,
                    WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE,
                    jxl.format.Colour.BLACK); // 定义格式 字体 下划线 斜体 粗体 颜色
            WritableFont wf_head = new WritableFont(WritableFont.ARIAL, 11,
                    WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE,
                    jxl.format.Colour.BLACK); // 定义格式 字体 下划线 斜体 粗体 颜色
            WritableFont wf_table = new WritableFont(WritableFont.ARIAL, 11,
                    WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE,
                    jxl.format.Colour.BLACK); // 定义格式 字体 下划线 斜体 粗体 颜色

            WritableCellFormat wcf_title = new WritableCellFormat(wf_title); // 单元格定义
            wcf_title.setBackground(jxl.format.Colour.WHITE); // 设置单元格的背景颜色
            wcf_title.setAlignment(jxl.format.Alignment.CENTRE); // 设置对齐方式
            wcf_title.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN,jxl.format.Colour.BLACK); //设置边框

            WritableCellFormat wcf_title1 = new WritableCellFormat(wf_title); // 单元格定义
            wcf_title1.setBackground(jxl.format.Colour.LIGHT_GREEN); // 设置单元格的背景颜色
            wcf_title1.setAlignment(jxl.format.Alignment.CENTRE); // 设置对齐方式
            wcf_title1.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN,jxl.format.Colour.BLACK); //设置边框

            WritableCellFormat wcf_title2 = new WritableCellFormat(wf_title); // 单元格定义
            wcf_title2.setBackground(jxl.format.Colour.YELLOW2); // 设置单元格的背景颜色
            wcf_title2.setAlignment(jxl.format.Alignment.CENTRE); // 设置对齐方式
            wcf_title2.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN,jxl.format.Colour.BLACK); //设置边框

            WritableCellFormat wcf_head1 = new WritableCellFormat(wf_head);
            wcf_head1.setBackground(jxl.format.Colour.LIGHT_GREEN);
            wcf_head1.setAlignment(jxl.format.Alignment.CENTRE);
            wcf_head1.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN,jxl.format.Colour.BLACK);

            WritableCellFormat wcf_head2 = new WritableCellFormat(wf_head);
            wcf_head2.setBackground(jxl.format.Colour.YELLOW2);
            wcf_head2.setAlignment(jxl.format.Alignment.CENTRE);
            wcf_head2.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN,jxl.format.Colour.BLACK);


            WritableCellFormat wcf_table1 = new WritableCellFormat(wf_table);
            wcf_table1.setBackground(jxl.format.Colour.LIGHT_GREEN);
            wcf_table1.setAlignment(jxl.format.Alignment.CENTRE);
            wcf_table1.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN,jxl.format.Colour.BLACK);

            WritableCellFormat wcf_table2 = new WritableCellFormat(wf_table);
            wcf_table2.setBackground(jxl.format.Colour.YELLOW2);
            wcf_table2.setAlignment(jxl.format.Alignment.CENTRE);
            wcf_table2.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN,jxl.format.Colour.BLACK);

            sheetOne.setColumnView(0, 15); // 设置列的宽度
            sheetOne.setColumnView(1, 15); // 设置列的宽度
            sheetOne.setColumnView(2, 15); // 设置列的宽度
            sheetOne.setColumnView(3, 15); // 设置列的宽度
            sheetOne.setColumnView(4, 15); // 设置列的宽度
            sheetOne.setColumnView(5, 15); // 设置列的宽度
            sheetOne.setColumnView(6, 15); // 设置列的宽度
            sheetOne.setColumnView(7, 15); // 设置列的宽度
            sheetOne.setColumnView(8, 15); // 设置列的宽度
            sheetOne.setColumnView(9, 15); // 设置列的宽度
            sheetOne.setColumnView(10, 15); // 设置列的宽度
            sheetOne.setColumnView(11, 15); // 设置列的宽度
            sheetOne.setColumnView(12, 15); // 设置列的宽度
            sheetOne.setColumnView(13, 15); // 设置列的宽度

            //在Label对象的构造子中指名单元格位置是第一列第一行(0,0)
            //以及单元格内容为test
            Label title=new Label(0,0,"统计",wcf_title);
            Label titleOne=new Label(0,1,"统计1",wcf_title1);
            Label titleTwo=new Label(2,1,"统计2",wcf_title2);

            Label column1=new Label(0,2,"姓名",wcf_head1);
            Label column2=new Label(1,2,"所选课程",wcf_head1);

            Label column3=new Label(2,2,"姓名",wcf_head2);
            Label column4=new Label(3,2,"所选课程",wcf_head2);



            //或者WritableCell cell =  new jxl.write.Number(column, row, value, wcf)
            //将定义好的单元格添加到工作表中
            sheetOne.addCell(title);
            sheetOne.addCell(titleOne);
            sheetOne.addCell(titleTwo);

            sheetOne.addCell(column1);
            sheetOne.addCell(column2);
            sheetOne.addCell(column3);
            sheetOne.addCell(column4);

  ws.mergeCells(0, 0, 0, 1);//合并单元格，第一个参数：要合并的单元格最左上角的列号，第二个参数：要合并的单元格最左上角的行号，第三个参数：要合并的单元格最右角的列号，第四个参数：要合并的单元格最右下角的行号，
            //合： 第1列第1行  到 第13列第1行
            sheetOne.mergeCells(0, 0, 3, 0);
            sheetOne.mergeCells(0, 1, 1, 1);
            sheetOne.mergeCells(2, 1, 3, 1);






            /*动态数据   */
            Label content1=new Label(0,3,"张三",wcf_table1);
            Label content2=new Label(0,4,"张三",wcf_table1);
            Label content3=new Label(0,5,"张三",wcf_table1);
            Label kecheg1=new Label(1,3,"语文",wcf_table1);
            Label kecheg2=new Label(1,4,"数学",wcf_table1);
            Label kecheg3=new Label(1,5,"英语",wcf_table1);

            sheetOne.addCell(content1);
            sheetOne.addCell(content2);
            sheetOne.addCell(content3);
            sheetOne.addCell(kecheg1);
            sheetOne.addCell(kecheg2);
            sheetOne.addCell(kecheg3);

            sheetOne.mergeCells(0, 3, 0, 2+3);


            Label content11=new Label(2,3,"李四",wcf_table2);
            Label content22=new Label(2,4,"李四",wcf_table2);
            Label content33=new Label(2,5,"李四",wcf_table2);
            Label kecheg11=new Label(3,3,"语文",wcf_table2);
            Label kecheg22=new Label(3,4,"数学",wcf_table2);
            Label kecheg33=new Label(3,5,"英语",wcf_table2);

            sheetOne.addCell(content11);
            sheetOne.addCell(content22);
            sheetOne.addCell(content33);
            sheetOne.addCell(kecheg11);
            sheetOne.addCell(kecheg22);
            sheetOne.addCell(kecheg33);

            sheetOne.mergeCells(2, 3, 2, 2+3);


            //写入数据并关闭文件
            book.write();
            book.close();
        }catch(Exception e){
            System.out.println(e);
        }
    }
}

 

 

其他代码参考

public void createZJData(List zjList,WritableSheet sheet) throws RowsExceededException, WriteException {
    //（为合并做准备）在运阶段有多少个子系统
    for (int j = 0; j < zjList.size(); j++) {
        if(zjSonSysList.get(zjList.get(j).getNumber3()) != null){
            zjSonSysList.get(zjList.get(j).getNumber3()).add(zjList.get(j));
        }else{
            List vos = new ArrayList();
            vos.add(zjList.get(j));
            zjSonSysList.put(zjList.get(j).getNumber3(), vos);
        }
    }

    //动态生成数据
    if(zjSonSysList != null && zjSonSysList.size() > 0){
        for (Iterator iter = zjSonSysList.entrySet().iterator(); iter.hasNext();){
            Entry entry = (Entry) iter.next();
            String key = (String) entry.getKey();
            List sonSysVO = (List) entry.getValue();

            for (int t = 0; t < sonSysVO.size(); t++) {

                Label content1=new Label(7,zjEndNum+t,sonSysVO.get(t).getNumber1(),wcf_table2);
                Label content2=new Label(8,zjEndNum+t,sonSysVO.get(t).getNumber2(),wcf_table2);
                Label content3=new Label(9,zjEndNum+t,sonSysVO.get(t).getNumber3(),wcf_table2);
                Label content4=new Label(10,zjEndNum+t,sonSysVO.get(t).getNumber4(),wcf_table2);
                Label content5=new Label(11,zjEndNum+t,sonSysVO.get(t).getNumber5(),wcf_table2);
                Label content6=new Label(12,zjEndNum+t,sonSysVO.get(t).getNumber6(),wcf_table2);
                Label mk=new Label(13,zjEndNum+t,sonSysVO.get(t).getNumber7(),wcf_table2);

                sheet.addCell(content1);
                sheet.addCell(content2);
                sheet.addCell(content3);
                sheet.addCell(content4);
                sheet.addCell(content5);
                sheet.addCell(content6);
                sheet.addCell(mk);

                if(t == (sonSysVO.size() - 1)){
                    zjEndNum = zjEndNum+t+1;
                }else{
                    zjEndNum = zjEndNum+t;
                }

            }
            int offer = sonSysVO.size();
            //合并： 第1列第1行  到 第13列第1行
            sheet.mergeCells(7, zjEndNum-offer, 7, zjEndNum-1);
            sheet.mergeCells(8, zjEndNum-offer, 8, zjEndNum-1);
            sheet.mergeCells(9, zjEndNum-offer, 9, zjEndNum-1);
            sheet.mergeCells(10, zjEndNum-offer, 10, zjEndNum-1);
            sheet.mergeCells(11, zjEndNum-offer, 11, zjEndNum-1);
            sheet.mergeCells(12, zjEndNum-offer, 12, zjEndNum-1);
        }
    }

    //使用完毕后恢复，供下一个类型sheet使用
    zjEndNum = 3;
    zjSonSysList.clear();
    zjList.clear();
}

自定义背景色方法getNearestColour("#99cc00")

public static Colour getNearestColour(String strColor) {
       Color cl = Color.decode(strColor);
       Colour color = null;
       Colour[] colors = Colour.getAllColours();
       if ((colors != null) && (colors.length > 0)) {
          Colour crtColor = null;
          int[] rgb = null;
          int diff = 0;
          int minDiff = 999;
          for (int i = 0; i < colors.length; i++) {
               crtColor = colors[i];
               rgb = new int[3];
               rgb[0] = crtColor.getDefaultRGB().getRed();
               rgb[1] = crtColor.getDefaultRGB().getGreen();
               rgb[2] = crtColor.getDefaultRGB().getBlue();

               diff = Math.abs(rgb[0] - cl.getRed())
                 + Math.abs(rgb[1] - cl.getGreen())
                 + Math.abs(rgb[2] - cl.getBlue());
               if (diff < minDiff) {
                minDiff = diff;
                color = crtColor;
               }
          }
       }
       if (color == null)
          color = Colour.BLACK;
       return color;
   }