1.控制層Controller，使用getLCCnsFeeCalMainExcel.do去接收

@SuppressWarnings("rawtypes")  //去除警告
	@RequestMapping("getLCCnsFeeCalMainExcel.do")
	public ModelAndView queryExcel(@RequestParam("req") String hreq)
			throws ParseException, IOException, SQLException {
		// 根據保單號查詢其他資訊
		hreq = URLDecoder.decode(hreq,"UTF-8");
		LCCnsFeeCalMainDto tLCCnsFeeCalMainDto = JsonUtils.toJsonObject(hreq,
				LCCnsFeeCalMainDto.class);
		List<Map> ptpList = tLCCnsFeeCalMainBlo.queryExcel(tLCCnsFeeCalMainDto);// 資料匯出資料查詢
		String excelName = "LCCnsFeeCalMain.xls";// 建立生成檔案的名字
		LCCnsFeeCalMainViewExcel tLCCnsFeeCalMainViewExcel = new LCCnsFeeCalMainViewExcel(
				excelName, ptpList);// 保單跟進檔案生成方法
		return new ModelAndView(tLCCnsFeeCalMainViewExcel);
	}
 

2.LCCnsFeeCalMainViewExcel

     LCCnsFeeCalMainViewExcel類繼承AbstractExcelView，呼叫構造方法及重寫的buildExcelDocument方法

       構造方法：建立變數templetFilePath，內容為模板地址，並賦值，賦值過程在步驟3中展示

package com.yunhui.oversea.policy.view;
import java.io.BufferedOutputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.springframework.web.servlet.view.document.AbstractExcelView;
import com.yunhui.oversea.policy.util.ExcelUtil;

public class LCCnsFeeCalMainViewExcel extends AbstractExcelView {
 String templetFilePath;
 String generateFilePath;
 Properties datas;
 @SuppressWarnings("rawtypes")
 List<Map> list;
    /***
     * 構造方法
     * @param generateFilePath
     * @param list
     */
 @SuppressWarnings("rawtypes")
 public LCCnsFeeCalMainViewExcel(String generateFilePath,List<Map> list) {
  //獲取檔案模板
  this.templetFilePath = System.getProperty("webServerRoot")+"/excel/LCCnsFeeCalMainView.xls";
  this.generateFilePath = generateFilePath;
  this.list = list;
 }
 
    /***
    * 向Excel表中寫資料，生成對應的Excel文件
    */
 @Override
 protected void buildExcelDocument(Map<String, Object> arg0,
   HSSFWorkbook arg1, HttpServletRequest request,
   HttpServletResponse response) throws Exception {
  response.setContentType("application/vnd.ms-excel");
  response.setHeader("Content-disposition", "attachment;filename="
    + this.generateFilePath);
  ExcelUtil excel = new ExcelUtil(this.templetFilePath);
  excel.insertRow(1,this.list);
  
  OutputStream ouputStream = response.getOutputStream(); 
   BufferedOutputStream bos = new BufferedOutputStream(ouputStream);
  excel.wb.write(bos);
   bos.flush();     
   bos.close();
 }
}
 

	public void insertRow(int starRow,List<Map> list) throws IOException {

		HSSFSheet sheet = this.wb.getSheetAt(0);
		// 選擇一個區域，從startRow+1直到最後一行
		sheet.shiftRows(starRow + 1, sheet.getLastRowNum(), list.size(), true, false);

		//System.out.println("starRow1:" + starRow);
		starRow = starRow - 1;

		for (int i = 0; i < list.size(); i++) {
			HSSFRow sourceRow = null;
			HSSFRow targetRow = null;
			HSSFCell sourceCell = null;
			HSSFCell targetCell = null;
			short m;
			starRow = starRow + 1;
			sourceRow = sheet.getRow(starRow);

			//System.out.println("starRow2:" + starRow);
			if (sourceRow == null) {
				sourceRow = sheet.createRow(starRow);
			}
			// 從start建立新的一行
			targetRow = sheet.createRow(starRow + 1);
			targetRow.setHeight(sourceRow.getHeight());
			// sourceRow.setRowNum(sourceRow.getRowNum());
			// 處理剛剛建立的一行
			Map cellmap = (HashMap)list.get(i);
    		Object s[] = cellmap.keySet().toArray();
			for(m = 0; m < cellmap.size(); m++) {
			//for (m = sourceRow.getFirstCellNum(); m < cellList.size(); m++) {
				sourceCell = sourceRow.getCell(m);
				targetCell = targetRow.createCell(m);

				// 風格一樣
				HSSFCellStyle style = wb.createCellStyle();
				style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
				style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
				style.setBorderRight(HSSFCellStyle.BORDER_THIN);
				style.setBorderTop(HSSFCellStyle.BORDER_THIN);

				HSSFFont fontNormal = wb.createFont();
				fontNormal.setFontHeightInPoints((short) 10);
				fontNormal.setFontName("宋體");
				fontNormal.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
				style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 居中
				style.setFont(fontNormal);

				targetCell.setCellStyle(style);
				//targetCell.setCellStyle(sourceCell.getCellStyle());
				//targetCell.setCellType(sourceCell.getCellType());
				String value = "";
				if (cellmap.get(s[m]) != null) 
				{
					if (cellmap.get(s[m]).getClass().equals(Timestamp.class)) {
						Timestamp timestamp = (Timestamp) cellmap.get(s[m]);
						Date date = new Date(timestamp.getTime());
						value = DateUtils.format(date, DateUtils.FORMAT_LONG);
					} else if (cellmap.get(s[m]).getClass().equals(BigDecimal.class)) {
						value = StringUtils.twoDecimal(((BigDecimal) cellmap.get(s[m])).doubleValue());
					} else {
						value = cellmap.get(s[m]) + "";
					}
				}
				targetCell.setCellType(HSSFCell.CELL_TYPE_STRING);
				targetCell.setEncoding(HSSFCell.ENCODING_UTF_16);
				targetCell.setCellValue(value);// 設定值
			}
		}
	}
 

<!--   <context-param>  
    <param-name>webAppRootKey</param-name>  
    <param-value>webServerRoot</param-value>  
  </context-param>  -->

<listener>
    <listener-class>com.yunhui.oversea.policy.servlet.GeneralListener
		</listener-class>
  </listener>

public class GeneralListener implements ServletContextListener {

	@Override
	public void contextInitialized(ServletContextEvent event) {
		String webServerRoot = event.getServletContext().getRealPath("/");
		System.setProperty("webServerRoot", webServerRoot);
		Properties properties = new Properties();  
        try  
        {  
            InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream("system.properties"); 
            properties.load(inputStream);  
            inputStream.close(); //關閉流  
        }  
        catch (IOException e)  
        {  
            e.printStackTrace();  
        }  
		LogUtils.info(Log.BIZ_LOGGER, "webServerRoot:"+event.getServletContext().getRealPath("/"));

	}