转：jxl导出excel（合并单元格）

Demo

代码如下：

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); 


//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); 
} 
} 
}

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);


//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<CountVO> 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<CountVO> vos = new ArrayList<CountVO>(); 
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<CountVO> sonSysVO = (List<CountVO>) 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(); 
}

public void createZJData(List<CountVO> 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<CountVO> vos = new ArrayList<CountVO>();
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<CountVO> sonSysVO = (List<CountVO>) 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; 
}

本文转自：http://blog.csdn.net/goodleiwei/article/details/8553727