java 导出excel表格

工具类

import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

/**
 * @author Administrator
 *
 */
public class ExportUtil {
		    private XSSFWorkbook wb = null;  
		    
		    private XSSFSheet sheet = null;  
		  
		    /** 
		     * @param wb 
		     * @param sheet 
		     */  
		    public ExportUtil(XSSFWorkbook wb, XSSFSheet sheet)  
		    {  
		        this.wb = wb;  
		        this.sheet = sheet;  
		    }  
		  
		    /** 
		     * 合并单元格后给合并后的单元格加边框 
		     *  
		     * @param region 
		     * @param cs 
		     */  
		    public void setRegionStyle(CellRangeAddress region, XSSFCellStyle cs)  
		    {  
		  
		        int toprowNum = region.getFirstRow();  
		        for (int i = toprowNum; i <= region.getLastRow(); i++)  
		        {  
		            XSSFRow row = sheet.getRow(i);  
		            for (int j = region.getFirstColumn(); j <= region.getLastColumn(); j++)  
		            {  
		                XSSFCell cell = row.getCell(j);// XSSFCellUtil.getCell(row,  
		                                                // (short) j);  
		                cell.setCellStyle(cs);  
		            }  
		        }  
		    }  
		  
		    /** 
		     * 设置表头的单元格样式 
		     *  
		     * @return 
		     */  
		    public XSSFCellStyle getHeadStyle()  
		    {  
		        // 创建单元格样式  
		        XSSFCellStyle cellStyle = wb.createCellStyle();  
		        // 设置单元格的背景颜色为淡蓝色  
		        cellStyle.setFillForegroundColor(HSSFColor.PALE_BLUE.index);  
		        cellStyle.setFillPattern(XSSFCellStyle.SOLID_FOREGROUND);  
		        // 设置单元格居中对齐  
		        cellStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER);  
		        // 设置单元格垂直居中对齐  
		        cellStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER);  
		        // 创建单元格内容显示不下时自动换行  
		        cellStyle.setWrapText(true);  
		        // 设置单元格字体样式  
		        XSSFFont font = wb.createFont();  
		        // 设置字体加粗  
		        font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD);  
		        font.setFontName("宋体");  
		        font.setFontHeight((short) 200);  
		        cellStyle.setFont(font);  
		        // 设置单元格边框为细线条  
		        cellStyle.setBorderLeft(XSSFCellStyle.BORDER_THIN);  
		        cellStyle.setBorderBottom(XSSFCellStyle.BORDER_THIN);  
		        cellStyle.setBorderRight(XSSFCellStyle.BORDER_THIN);  
		        cellStyle.setBorderTop(XSSFCellStyle.BORDER_THIN);  
		        return cellStyle;  
		    }  
		  
		    /** 
		     * 设置表体的单元格样式 
		     *  
		     * @return 
		     */  
		    public XSSFCellStyle getBodyStyle()  
		    {  
		        // 创建单元格样式  
		        XSSFCellStyle cellStyle = wb.createCellStyle();  
		        // 设置单元格居中对齐  
		        cellStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER);  
		        // 设置单元格垂直居中对齐  
		        cellStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER);  
		        // 创建单元格内容显示不下时自动换行  
		        cellStyle.setWrapText(true);  
		        // 设置单元格字体样式  
		        XSSFFont font = wb.createFont();  
		        // 设置字体加粗  
		        font.setBoldweight(XSSFFont.BOLDWEIGHT_BOLD);  
		        font.setFontName("宋体");  
		        font.setFontHeight((short) 200);  
		        cellStyle.setFont(font);  
		        // 设置单元格边框为细线条  
		        cellStyle.setBorderLeft(XSSFCellStyle.BORDER_THIN);  
		        cellStyle.setBorderBottom(XSSFCellStyle.BORDER_THIN);  
		        cellStyle.setBorderRight(XSSFCellStyle.BORDER_THIN);  
		        cellStyle.setBorderTop(XSSFCellStyle.BORDER_THIN);  
		        return cellStyle;  
		    }  
}

业务层

<pre name="code" class="html">@RequestMapping(value="reportExcel")
	public void reportExcel(HttpServletResponse response){
		//解决浏览器跨域问题
		response.setHeader("Access-Control-Allow-Origin", "*");
		XSSFWorkbook workBook = new XSSFWorkbook();  
        XSSFSheet sheet = workBook.createSheet("用户管理系统统计");  
        ExportUtil exportUtil = new ExportUtil(workBook, sheet);  
        XSSFCellStyle headStyle = exportUtil.getHeadStyle();  
        XSSFCellStyle bodyStyle = exportUtil.getBodyStyle();  
        XSSFRow headRow = sheet.createRow(0);  
        XSSFCell cell = null; 
		String[] title = {"编号","电话","用户姓名","地址","生日","职业","支付宝","圈子","状态","注册时间"};
		for (int i = 0; i < title.length; i++)  
        {  
            cell = headRow.createCell(i);  
            cell.setCellStyle(headStyle);  
            cell.setCellValue(title[i]);  
        } <span style="white-space:pre">	</span>//用户的信息
		List<User> list = userService.selectUserRec();
		if(list != null && list.size() > 0){
			for(int i=0;i<list.size();i++){
				User user = list.get(i);
				XSSFRow bodyRow = sheet.createRow(i + 1);
				cell = bodyRow.createCell(0);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getRownum());
                
                cell = bodyRow.createCell(1);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getTelephone_col());
                
                cell = bodyRow.createCell(2);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getRealname_col());
                
                cell = bodyRow.createCell(3);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getLocation_col());
                
                cell = bodyRow.createCell(4);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getBirthday_col());
                
                cell = bodyRow.createCell(5);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getProfessional_col());
                
                cell = bodyRow.createCell(6);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getAccount_col());
                
                cell = bodyRow.createCell(7);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(user.getCircle());
                
                cell = bodyRow.createCell(8);  
                cell.setCellStyle(bodyStyle);
                if(user.getState_col().equals("Y") || user.getState_col()=="Y"){
                	cell.setCellValue("启用");
                }else{
                	cell.setCellValue("禁用");
                }
                
                cell = bodyRow.createCell(9);  
                cell.setCellStyle(bodyStyle);
                cell.setCellValue(DateAndString.getString(user.getCreateTime()));
			}
		}
		String fileName="用户信息汇总"+System.currentTimeMillis()+".xlsx";
		try {
			OutputStream os = response.getOutputStream();
			response.addHeader("Content-disposition", "attachment;filename="+ new String(fileName.getBytes("gb2312"), "ISO8859-1"));
			response.setContentType("application/application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
			response.setCharacterEncoding("utf-8");
			workBook.write(os);
			os.flush();  
			os.close();
			os.flush();
			os.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}