<dependency>
		  <groupId>org.apache.poi</groupId>
		  <artifactId>poi-ooxml</artifactId>
		  <version>3.13</version>
		</dependency>
		<dependency>
		  <groupId>org.apache.poi</groupId>
		  <artifactId>poi-ooxml-schemas</artifactId>
		  <version>3.13</version>
		</dependency>
		<dependency>
		  <groupId>org.apache.xmlbeans</groupId>
		  <artifactId>xmlbeans</artifactId>
		  <version>2.6.0</version> 
		</dependency>
 

lib下需要的jar


1.匯入Excel，先獲取檔案的路徑，我這是使用的公司的外掛獲取的檔案路徑，在做的過程中可以直接使用Struts2的file 、fileFileName來獲取檔案路徑（案例也就這點區別）

public void uploadExcel()  {
		//附件
		String savePath ="";
		//檔案路徑獲取--使用的公司的檔案上傳外掛，先將檔案儲存資料庫，再從附件表中查詢出上傳的檔案獲取相應的路徑
		List<Attachment> attachmentsByAttachIds = AttachmentHelper.getAttachmentsByAttachIds(attachIds);
		for (int i = 0; i < attachmentsByAttachIds.size(); i++) {
			Attachment attachment = attachmentsByAttachIds.get(0);
			savePath = attachment.getSavePath();
		}
		analizeExcel(savePath);
		GboatAppContext.output(JsonResult.createSuccess("成功!"));
	}
 

public void analizeExcel(String savePath) {
		InputStream is = null;
		List<ItemSort> itemSortList = null;
		try {

			version = (savePath.endsWith(".xls") ? version2003 : version2007);
			String savepathRoot = ConfigUtil.getSavepathRoot();
			String webRoot = savepathRoot + savePath;
			is = new FileInputStream(webRoot);
			if (version == 2003) {// 2003
				POIFSFileSystem fs = new POIFSFileSystem(is);
				HSSFWorkbook wb = new HSSFWorkbook(fs);
				HSSFSheet sheet = wb.getSheetAt(0);
				itemSortList = read2003(sheet);
			} else if (version == 2007) {// 2007
				XSSFWorkbook xwb = new XSSFWorkbook(is);
				XSSFSheet sheet = xwb.getSheetAt(0);
				itemSortList = read2007(sheet);
			}

		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	} 
 

/**
	 * 匯入03版
	 * TODO
	 * @param sheet
	 * @return
	 */
	 public List<ItemSort> read2003(HSSFSheet sheet) {  
	        List<ItemSort> userList = new ArrayList<ItemSort>();  
	        int rowNum = sheet.getPhysicalNumberOfRows();  
	        ItemSort ui = null;  
	        for (int i = 1; i < rowNum; i++) { 
	        	HSSFRow row = sheet.getRow(i);  
	        	HSSFCell c = row.getCell(0);
	            ui = new ItemSort(); 
	            if (c != null) { 
	            	//迴圈獲取的excel表格，下面是根據自己的需求業務操作
	                c = row.getCell(0);  
	                if (c != null) {
	                	String itemCode=row.getCell(0).getStringCellValue();
	                    ui.setItemCode(itemCode);
	                    if(StringUtils.isNotBlank(itemCode)) {
	                    	if(itemCode.length()<3) {
	                    		ui.setItemFcode("");
	                    	}else {
	                    		String itemFCode = itemCode.substring(0,itemCode.length()- 2);
	                    		ui.setItemFcode(itemFCode);
	                    	}
	                    }else {
	                    	ui.setItemFcode("");
	                    }
	                } else {  
	                    ui.setItemCode("");  
	                }
	                
	                c = row.getCell(1);  
	                if (c != null) {  
	                    ui.setItemName(row.getCell(1).getStringCellValue());
	                } else {  
	                    ui.setItemName("");  
	                }  
	                
	                c = row.getCell(2);  
	                if (c != null) {  
	                    ui.setItemExplain(row.getCell(2).getStringCellValue());
	                } else {  
	                    ui.setItemExplain("");  
	                }
	                ui.setCatalogueManageId(catalogueId);
	                ui.setCreateDate(new Date());
	                itemSortBusiness.save(ui);
	                userList.add(ui);  
	            }  
	  
	        }  
	        return userList;  
	    }

	 /**
		 * 匯入07版
		 * TODO
		 * @param sheet
		 * @return
		 */
	 public List<ItemSort> read2007(XSSFSheet  sheet) {  
	        List<ItemSort> userList = new ArrayList<ItemSort>();  
	  
	        int rowNum = sheet.getPhysicalNumberOfRows();  
	        ItemSort ui = null;  
	        for (int i = 1; i < rowNum; i++) { 
	        	XSSFRow row = sheet.getRow(i);  
	        	XSSFCell c = row.getCell(0);
	            ui = new ItemSort();  
	            if (c != null) {  
	                c = row.getCell(0);  
	                if (c != null) {
	                	String itemCode=row.getCell(0).getStringCellValue();
	                    ui.setItemCode(itemCode);
	                    if(StringUtils.isNotBlank(itemCode)) {
	                    	if(itemCode.length()<3) {
	                    		ui.setItemFcode("");
	                    	}else {
	                    		String itemFCode = itemCode.substring(0,itemCode.length()- 2);
	                    		ui.setItemFcode(itemFCode);
	                    	}
	                    }else {
	                    	ui.setItemFcode("");
	                    }
	                } else {  
	                    ui.setItemCode("");  
	                }
	                
	                c = row.getCell(1);  
	                if (c != null) {  
	                    ui.setItemName(row.getCell(1).getStringCellValue());
	                } else {  
	                    ui.setItemName("");  
	                }  
//	  
//	  
	                c = row.getCell(2);  
	                if (c != null) {  
	                    ui.setItemExplain(row.getCell(2).getStringCellValue());
	                } else {  
	                    ui.setItemExplain("");  
	                }
	                ui.setCatalogueManageId(catalogueId);
	                itemSortBusiness.save(ui);
	                userList.add(ui);  
	            }  
	  
	        }  
	        return userList;  
	    }

總結：03與07使用的jar不一樣，在操作的過程中呼叫相應的jar包的資料
03版使用的是：
HSSFWorkbook、HSSFSheet、HSSFRow、HSSFCell
07版本使用的是：
XSSFWorkbook、XSSFSheet、XSSFRow、XSSFCell