POI EXCEL 样式设置

POI中可能会用到一些需要设置EXCEL单元格格式的操作小结：

先获取工作薄对象:

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet();

HSSFCellStyle setBorder = wb.createCellStyle();

一、设置背景色：

setBorder.setFillForegroundColor((short) 13);// 设置背景色
setBorder.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

二、设置边框:

setBorder.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
setBorder.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
setBorder.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
setBorder.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框

三、设置居中:

setBorder.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 居中

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四、设置字体:

HSSFFont font = wb.createFont();
font.setFontName("黑体");
font.setFontHeightInPoints((short) 16);//设置字体大小

HSSFFont font2 = wb.createFont();
font2.setFontName("仿宋_GB2312");
font2.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//粗体显示
font2.setFontHeightInPoints((short) 12);

setBorder.setFont(font);//选择需要用到的字体格式

五、设置列宽:

sheet.setColumnWidth(0, 3766); //第一个参数代表列id(从0开始),第2个参数代表宽度值

六、设置自动换行:

setBorder.setWrapText(true);//设置自动换行

七、合并单元格:

Region region1 = new Region(0, (short) 0, 0, (short) 6);

//参数1：行号 参数2：起始列号 参数3：行号 参数4：终止列号
sheet.addMergedRegion(region1);

附上一个例子：

import org.apache.poi.ss.usermodel.Font;

import org.apache.poi.hssf.usermodel.HSSFCell;

import org.apache.poi.hssf.usermodel.HSSFCellStyle;

import org.apache.poi.hssf.usermodel.HSSFRow;

import org.apache.poi.hssf.usermodel.HSSFSheet;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

　

publicclass ExcelWriter {

/**

* Write Excel 2003

*/

publicvoid buildXSLXExcel(List<Map<String, String>> list, String filePath) {

HSSFWorkbook workBook = null;

String[] cellTitle = { "Screen Name", "Object Name", "XPath" };

try {

workBook = new HSSFWorkbook();// Create workbook

HSSFSheet sheet = workBook.createSheet();// create work sheet

workBook.setSheetName(0, "Repository");// set sheet name

HSSFRow titleRow = sheet.createRow(0);// Create first row

HSSFCell ScreenNameCell = titleRow.createCell(0, 0);

HSSFCell ObjectCell = titleRow.createCell(2, 0);

HSSFCell XpathCell = titleRow.createCell(4, 0);

// Create background color style

HSSFCellStyle cellStyle = workBook.createCellStyle();

cellStyle.setFillForegroundColor((short)13);

cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

// Create font style

Font titleFont = workBook.createFont();

titleFont.setFontHeightInPoints((short) 12);

titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD);

cellStyle.setFont(titleFont);

// Add color style

ScreenNameCell.setCellStyle(cellStyle);

ObjectCell.setCellStyle(cellStyle);

XpathCell.setCellStyle(cellStyle);

　

// Set value

ScreenNameCell.setCellValue(cellTitle[0]);

ObjectCell.setCellValue(cellTitle[1]);

XpathCell.setCellValue(cellTitle[2]);

if (list != null && !list.isEmpty()) {

for (int i = 0; i < list.size(); i++) {

Map<String, String> dataMap = list.get(i);

HSSFRow row = sheet.createRow(i + 1);

HSSFCell ScreenNamecell = row.createCell(0);

HSSFCell Objectcell = row.createCell(2);

HSSFCell XPathcell = row.createCell(4);

ScreenNamecell.setCellValue(dataMap

.get(ParseXMLUtil.PARAM_SCREEN_NAME));

Objectcell.setCellValue(dataMap

.get(ParseXMLUtil.PARAM_OBJECT_NAME));

XPathcell.setCellValue(dataMap

.get(ParseXMLUtil.PARAM_OBJECT_PATH));

}

}

File file = new File(filePath);

File parent = file.getParentFile();

if (!parent.exists()) {

parent.mkdir();

}

if (!file.exists()) {

file.createNewFile();

}

FileOutputStream outStream = new FileOutputStream(file);

workBook.write(outStream);

outStream.flush();

outStream.close();

} catch (Exception e) {

System.err.println(e);

e.printStackTrace();

}

}

publicstaticvoid main(String[] args) {

// TODO Auto-generated method stub

}

}