我想为具有不同单元格的行提供自定义颜色。
XSSFWorkbook wb = new XSSFWorkbook();
String safeName = WorkbookUtil.createSafeSheetName("Main Result"); // returns " O'Brien's sales "
XSSFSheet sheet1 = wb.createSheet(safeName);
XSSFCellStyle[] style=new XSSFCellStyle[12];
style[4] = (XSSFCellStyle)wb.createCellStyle();
style[4].setFillBackgroundColor(new XSSFColor(new java.awt.Color(0, 255, 0)));
style[4].setFillPattern(CellStyle.BIG_SPOTS);
此代码适用于连续的某些单元格。但是，它为单元格中的其他行打印黑色背景。以下是我正在做核心事情的功能。
public static void merge(int i,int j,Sheet sheet1,ArrayList<Room> rooms)
{
sheet1.addMergedRegion(new CellRangeAddress(
i, //first row (0-based)
i+1, //last row (0-based)
j+1, //first column (0-based)
j+3 //last column (0-based)
));
sheet1.addMergedRegion(new CellRangeAddress(
i, //first row (0-based)
i, //last row (0-based)
j+4, //first column (0-based)
j+4+rooms.size()-1 //last column (0-based)
));
}
public static void printRooms(int i,int j,Sheet sheet1,ArrayList<Room> rooms)
{
Row row2=sheet1.getRow(i+1);
if(row2==null)
row2=sheet1.createRow(i+1);
for(int k=0;k<rooms.size();k++)
{
Cell cell=row2.createCell(j+4+k);
cell.setCellValue(rooms.get(k).getRoom_no());
//cell.setCellStyle(style[1]);
}
}
//this function prints all the data in excel sheet for a particular SLOT and TIME INTERVAL
public static void printInExcel(Map<Integer,String> batch_id_name,
Map<Integer,Integer> line,Map<Integer,Integer> range,Sheet sheet1,int j,XSSFCellStyle[] style,Set<Course> set,TimeInterval t1,Workbook wb,int flag) throws ClassNotFoundException, DAOException, SQLException
{
int flag2=0;//to print labels just for first time.
int border_first=0;
int border_last=0;
for(int batch_id=1;batch_id<=batch_id_name.size();batch_id++)
{
//check if such batch_id exists
if(!line.containsKey(batch_id))
continue;
//Merge Rows
int start=line.get(batch_id);
int end=start+range.get(batch_id)-1;
int i=start-2;
//print default messages
ArrayList<Room> rooms=GeneralDAO.getRooms();
Row row1=sheet1.getRow(i);
if(row1==null)
row1 = sheet1.createRow(i);
//if flag2==0,it means it's first iteration
if(flag2==0)
{ border_first=i;
if(flag==1)
{
//System.out.println("Working");
TimeTable.merge(i, j, sheet1, rooms);
row1.createCell(j+1).setCellValue(" 08:30 - 10:30 ");
row1.createCell(j+4).setCellValue(" CEP Rooms ");
TimeTable.printRooms(i, j, sheet1, rooms);
flag2=1;
}
else if(flag==2)
{
TimeTable.merge(i, j, sheet1, rooms);
row1.createCell(j+1).setCellValue(" 11:00 - 13:00 ");
row1.createCell(j+4).setCellValue(" CEP Rooms ");
TimeTable.printRooms(i, j, sheet1, rooms);
flag2=1;
}
else if(flag==3)
{ TimeTable.merge(i, j, sheet1, rooms);
row1.createCell(j+1).setCellValue(" 14:00 - 16:00 ");
row1.createCell(j+4).setCellValue(" CEP Rooms ");
TimeTable.printRooms(i, j, sheet1, rooms);
flag2=1;
}
else if(flag==4)
{
TimeTable.merge(i, j, sheet1, rooms);
row1.createCell(j+1).setCellValue(" 16:30 - 18:30 ");
row1.createCell(j+4).setCellValue(" CEP Rooms ");
TimeTable.printRooms(i, j, sheet1, rooms);
flag2=1;
}
}
Row row=sheet1.getRow(start);
if(row==null)
row=sheet1.createRow(start);
//System.out.println("batch_id"+batch_id+"start: "+start+"end: "+end);
if(flag==1)
{
if((end-start)!=0)
{
sheet1.addMergedRegion(new CellRangeAddress(
start, //first row (0-based)
end, //last row (0-based)
j, //first column (0-based)
j //last column (0-based)
));
}
// Write Batch Name
row.createCell(j).setCellValue(batch_id_name.get(batch_id));
row.getCell(j).setCellStyle(style[batch_id-1]);
}
//Start allocating courses
for(Course course:set)
{
if(Integer.parseInt(course.getBatch())==batch_id)
{
Row row_temp = sheet1.getRow(start);
if(row_temp==null)
{
row_temp=sheet1.createRow(start);
}
row_temp.createCell(j+1).setCellValue(course.getCourse_id());
row_temp.getCell(j+1).setCellStyle(style[batch_id-1]);
row_temp.createCell(j+2).setCellValue(course.getCourse_name());
row_temp.getCell(j+2).setCellStyle(style[batch_id-1]);
// sheet1.createRow(80).createCell(j+1).setCellStyle(style[10]);
ArrayList<Room> temp_rooms=t1.getRooms();
//first column for timeinterval1
int first_col=j+4;
for(int p=0;p<temp_rooms.size();p++)
{
System.out.println("Running"+p);
if(!t1.getMap().containsKey(temp_rooms.get(p).getRoom_no()))
continue;
for(OccupationData od:t1.getMap().get(temp_rooms.get(p).getRoom_no()))
{
if(od.getCourse().getCourse_id()==course.getCourse_id())
{
row_temp.createCell(p+first_col).setCellValue(od.getAllocatedStudents());
row_temp.getCell(p+first_col).setCellStyle(style[batch_id-1]);
}
}
}
start++;
}
}
border_last=end;//last iteration will set last end(although it sets this variable multiple times)
}
PropertyTemplate pt = new PropertyTemplate();
// #1) these borders will all be medium in default color
pt.drawBorders(new CellRangeAddress(border_first, border_last, j+1, j+8),
BorderStyle.MEDIUM,BorderExtent.OUTSIDE);
if(flag==1)
{
pt.drawBorders(new CellRangeAddress(border_first, border_last, j, j),
BorderStyle.MEDIUM,BorderExtent.OUTSIDE);
sheet1.addMergedRegion(new CellRangeAddress(
border_first, //first row (0-based)
border_last, //last row (0-based)
j-1, //first column (0-based)
j-1)); //last column (0-based)
Row temp_row=sheet1.getRow(border_first);
if(temp_row==null)
temp_row=sheet1.createRow(border_first);
//temp_row.createCell(j-1,CellStyle.ALIGN_JUSTIFY, CellStyle.VERTICAL_JUSTIFY).setCellValue("Exam Day");
TimeTable.createCell(wb, temp_row, j-1, CellStyle.ALIGN_JUSTIFY, CellStyle.VERTICAL_CENTER);
pt.drawBorders(new CellRangeAddress(border_first, border_last, j-1, j-1),
BorderStyle.MEDIUM,BorderExtent.OUTSIDE);
}
pt.applyBorders(sheet1);
}
private static void createCell(Workbook wb, Row row, int column, short halign, short valign) {
Cell cell = row.createCell(column);
cell.setCellValue(" Exam Day ");
CellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(halign);
cellStyle.setVerticalAlignment(valign);
cellStyle.setRotation((short)90);
cell.setCellStyle(cellStyle);
}
答案 0 :(得分：0)
使用setFillForegroundColor()代替setFillBackgroundColor()。