poi设置背景颜色 字体 合并单元格

生成excel poi设置背景颜色 字体 合并单元格 。。。。

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
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.XSSFWorkbook;

代码

 public static void writer(String path, String fileName,String fileType,List<object> list,String titleRow[] ,String count[]) throws Exception {  
        Workbook wbk = null;
        String excelPath = path+File.separator+fileName+"."+fileType;
        File file = new File(excelPath);
        Sheet sheet =null;
        //1.创建工作文档对象
        if (!file.exists()) {
            if (fileType.equals("xls")) {
                wbk = new HSSFWorkbook();
            } else if(fileType.equals("xlsx")) {
                    wbk = new XSSFWorkbook();
            } else {
                throw new Exception("文件格式不正确");
            }
            //2.创建sheet对象
            sheet = (Sheet) wbk.createSheet("sheet1");
            OutputStream outputStream = new FileOutputStream(excelPath);
            wbk.write(outputStream);
            outputStream.flush();
            outputStream.close();
            
        } else {
            if (fileType.equals("xls")) {
                wbk = new HSSFWorkbook();
            } else if(fileType.equals("xlsx")) {
                wbk = new XSSFWorkbook();
            } else {
                throw new Exception("文件格式不正确");
            }
        }
         //创建sheet对象   
        if (sheet==null) {
            sheet = (Sheet) wbk.createSheet("sheet1");
        }
        //3.创建样式对象
        CellStyle style = wbk.createCellStyle(); // 样式对象(表头)
        CellStyle style1 = wbk.createCellStyle(); // 样式对象(正文)
        
        sheet.setDisplayGridlines(false);//去除网格线
        //表头样式
        style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);  //填充单元格
        style.setFillForegroundColor(HSSFColor.PALE_BLUE.index);//设置单元格的背景颜色为淡蓝色
        style.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
        style.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
        style.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
        style.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
        style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);// 垂直
        style.setAlignment(CellStyle.ALIGN_CENTER);// 水平
        style.setWrapText(true);// 指定当单元格内容显示不下时自动换行
        Font font = wbk.createFont();
        font.setBoldweight(Font.BOLDWEIGHT_BOLD);
        font.setFontName("宋体");
        font.setFontHeight((short) 280);
        style.setFont(font);

        //正文样式
        style1.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
        style1.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
        style1.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
        style1.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
        style1.setVerticalAlignment(CellStyle.VERTICAL_CENTER);// 垂直
        style1.setAlignment(CellStyle.ALIGN_CENTER);// 水平
        style1.setWrapText(true);// 指定当单元格内容显示不下时自动换行
        Font font1 = wbk.createFont();
        font1.setFontName("新宋体");
        font1.setFontHeight((short) 280);
        style1.setFont(font1);
        

        //4.添加表头
        Row row = sheet.createRow(1);
        Cell cell = row.createCell(1);  //创建详情 表头
        Cell cell1 = row.createCell(8); //创建统计 表头
        cell.setCellValue("网点签到数据详情");
        cell1.setCellValue("统计报表");
        row.setHeight((short) 600);
       
        //5.单元格合并  (四个参数分别是:起始行号,终止行号, 起始列号,终止列号)
        sheet.addMergedRegion(new CellRangeAddress(1, 1, 1, 5));//详情
        cell.setCellStyle(style); // 添加样式
        sheet.addMergedRegion(new CellRangeAddress(1, 1, 8, 9));//统计
        cell1.setCellStyle(style); // 添加样式
        sheet.autoSizeColumn(5200);
        
        //6.添加附表头
        row = sheet.createRow(2);    //创建第二行
        for(int i = 0;i < titleRow.length;i++){//详情
            cell = row.createCell(i+1);
            cell.setCellValue(titleRow[i]);
            cell.setCellStyle(style);
            sheet.setColumnWidth(i+1, 20 * 256);
        }
        for(int i = 0;i < count.length;i++){//统计
            cell = row.createCell(i+8);
            cell.setCellValue(count[i]);
            cell.setCellStyle(style);
            sheet.setColumnWidth(i+8, 20 * 256);
        }
        row.setHeight((short) 540);
        
        
        //7.循环写入行数据  (数据详情)
        for (int i = 0; i < list.size(); i++) {
            row = sheet.createRow(i+3);
            row.createCell(1).setCellValue(( list.get(i)).getTags());
            row.getCell(1).setCellStyle(style1);
            row.createCell(2).setCellValue(( list.get(i)).getTitle());
            row.getCell(2).setCellStyle(style1);
            row.createCell(3).setCellValue(( list.get(i)).getAddress());
            row.getCell(3).setCellStyle(style1);
            row.createCell(4).setCellValue(( list.get(i)).getEmpName());
            row.getCell(4).setCellStyle(style1);
            row.createCell(5).setCellValue(( list.get(i)).getCreateTime());
            row.getCell(5).setCellStyle(style1);
            if(i < 5) {//循环写入行数据  (统计报表)
            	 row.createCell(8).setCellValue(( list.get(i)).getTags());
                 row.getCell(8).setCellStyle(style1);
                 row.createCell(9).setCellValue(( list.get(i)).getTitle());
                 row.getCell(9).setCellStyle(style1);
            }
            row.setHeight((short) 500);

        }
        
        //8.创建文件流
        OutputStream stream = new FileOutputStream(excelPath);
        //9.写入数据
        wbk.write(stream);
        //10.关闭文件流
        stream.close();
    }

最后附上 效果图
poi设置背景颜色 字体 合并单元格