poi操作excel工具类

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;


import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.hssf.util.Region;
import org.apache.poi.hwpf.extractor.WordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;


/**
 * EXCEL报表工具类.
 * 
 * @author zhanglei
 * @date 2014-02-27 18:59
 */
public class ExportExcel {


private HSSFWorkbook wb = null;


private HSSFSheet sheet = null;


/**
* @param wb
* @param sheet
*/
public ExportExcel(HSSFWorkbook wb, HSSFSheet sheet) {
super();
this.wb = wb;
this.sheet = sheet;
}


/**
* @return the sheet
*/
public HSSFSheet getSheet() {
return sheet;
}
/**
* @param sheet
*            the sheet to set
*/
public void setSheet(HSSFSheet sheet) {
this.sheet = sheet;
}


/**
* @return the wb
*/
public HSSFWorkbook getWb() {
return wb;
}


/**
* @param wb
*            the wb to set
*/
public void setWb(HSSFWorkbook wb) {
this.wb = wb;
}


/**
* 创建通用EXCEL头部
* 
* @param headString
*            头部显示的字符
* @param colSum
*            该报表的列数
*/
public void createNormalHead(String headString, int colSum) {


HSSFRow row = sheet.createRow(0);


// 设置第一行
HSSFCell cell = row.createCell(0);
row.setHeight((short) 400);


// 定义单元格为字符串类型
cell.setCellType(HSSFCell.ENCODING_UTF_16);
cell.setCellValue(new HSSFRichTextString("南京城区各网点进件统计报表"));


// 指定合并区域
sheet.addMergedRegion(new Region(0, (short) 0, 0, (short) colSum));


HSSFCellStyle cellStyle = wb.createCellStyle();


cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行


// 设置单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 300);
cellStyle.setFont(font);


cell.setCellStyle(cellStyle);
}


/**
* 创建通用报表第二行
* 
* @param params
*            统计条件数组
* @param colSum
*            需要合并到的列索引
*/
public void createNormalTwoRow(String[] params, int colSum) {
HSSFRow row1 = sheet.createRow(1);
row1.setHeight((short) 300);


HSSFCell cell2 = row1.createCell(0);


cell2.setCellType(HSSFCell.ENCODING_UTF_16);
cell2.setCellValue(new HSSFRichTextString("统计时间：" + params[0] + "至"
+ params[1]));


// 指定合并区域
sheet.addMergedRegion(new Region(1, (short) 0, 1, (short) colSum));


HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行


// 设置单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 250);
cellStyle.setFont(font);


cell2.setCellStyle(cellStyle);


}


/**
* 设置报表标题
* 
* @param columHeader
*            标题字符串数组
*/
public void createColumHeader(String[] columHeader) {


// 设置列头
HSSFRow row2 = sheet.createRow(2);


// 指定行高
row2.setHeight((short) 600);


HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行


// 单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 250);
cellStyle.setFont(font);


/*
* cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 设置单无格的边框为粗体
* cellStyle.setBottomBorderColor(HSSFColor.BLACK.index); // 设置单元格的边框颜色．
* cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
* cellStyle.setLeftBorderColor(HSSFColor.BLACK.index);
* cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
* cellStyle.setRightBorderColor(HSSFColor.BLACK.index);
* cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
* cellStyle.setTopBorderColor(HSSFColor.BLACK.index);
*/


// 设置单元格背景色
cellStyle.setFillForegroundColor(HSSFColor.GREY_25_PERCENT.index);
cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);


HSSFCell cell3 = null;


for (int i = 0; i < columHeader.length; i++) {
cell3 = row2.createCell(i);
cell3.setCellType(HSSFCell.ENCODING_UTF_16);
cell3.setCellStyle(cellStyle);
cell3.setCellValue(new HSSFRichTextString(columHeader[i]));
}


}


/**
* 创建内容单元格
* 
* @param wb
*            HSSFWorkbook
* @param row
*            HSSFRow
* @param col
*            short型的列索引
* @param align
*            对齐方式
* @param val
*            列值
*/
public void cteateCell(HSSFWorkbook wb, HSSFRow row, int col, short align,
String val) {
HSSFCell cell = row.createCell(col);
cell.setCellType(HSSFCell.ENCODING_UTF_16);
cell.setCellValue(new HSSFRichTextString(val));
HSSFCellStyle cellstyle = wb.createCellStyle();
cellstyle.setAlignment(align);
cell.setCellStyle(cellstyle);
}


/**
* 创建合计行
* 
* @param colSum
*            需要合并到的列索引
* @param cellValue
*/
public void createLastSumRow(int colSum, String[] cellValue) {


HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 指定单元格居中对齐
cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 指定单元格垂直居中对齐
cellStyle.setWrapText(true);// 指定单元格自动换行


// 单元格字体
HSSFFont font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
font.setFontName("宋体");
font.setFontHeight((short) 250);
cellStyle.setFont(font);


HSSFRow lastRow = sheet.createRow((short) (sheet.getLastRowNum() + 1));
HSSFCell sumCell = lastRow.createCell(0);


sumCell.setCellValue(new HSSFRichTextString("合计"));
sumCell.setCellStyle(cellStyle);
sheet.addMergedRegion(new Region(sheet.getLastRowNum(), (short) 0,
sheet.getLastRowNum(), (short) colSum));// 指定合并区域


for (int i = 2; i < (cellValue.length + 2); i++) {
sumCell = lastRow.createCell(i);
sumCell.setCellStyle(cellStyle);
sumCell.setCellValue(new HSSFRichTextString(cellValue[i - 2]));


}


}


/**
* 输入EXCEL文件
* 
* @param fileName
*            文件名
*/
public void outputExcel(String fileName) {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new File(fileName));
wb.write(fos);
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}