SSM框架poi导入导出Excel（MySQL）

Excel导入的MySQL的方法：

浏览器选择excel文件，传至服务端，在服务端解析此excel并将数据导入到数据库中。

源码下载

这里只保存关键代码，详细的源代码可点击上面源码下载前往下载

1，项目结构：

2，导入页面：

jsp:

	

	    

	    
上传
	    
导出
	

js:

function uploadFile() {
			var file = $("#upload").val();
			file = file.substring(file.lastIndexOf('.'), file.length);
			if (file == '') {
				alert("上传文件不能为空！");
			} else if (file != '.xlsx' && file != '.xls') {
				alert("请选择正确的excel类型文件！");
			} else {
				ajaxFileUpload();
			}
		}
		function ajaxFileUpload() {

			var formData = new FormData();
			var name = $("#upload").val();
			formData.append("file", $("#upload")[0].files[0]);
			formData.append("name", name);
			$.ajax({
				url : "excel/InputExcel.do",
				type : "POST",
				async : false,
				data : formData,
				processData : false,
				contentType : false,
				beforeSend : function() {
					console.log("正在进行，请稍候");
				},
				success : function(e) {
					if (e == "01") {
						alert("导入成功");
					} else {
						alert("导入失败");
					}
				}
			});
		}

		function OutputExce() {
			window.location.href = "/ExcelDemo/excel/OutputExcel.do";
		}

3，服务端解析处理Excel文件：

Controller:

@RequestMapping(value = "/InputExcel.do")
	@ResponseBody
	public String InputExcel(@RequestParam("file") MultipartFile file, HttpServletRequest request) throws Exception {
		String flag = "02";// 上传标志
		if (!file.isEmpty()) {
			try {
				String originalFilename = file.getOriginalFilename();// 原文件名字
				log.info("文件名：" + originalFilename);
				InputStream is = file.getInputStream();// 获取输入流
				flag = excelService.InputExcel(is, originalFilename);
			} catch (Exception e) {
				flag = "03";// 上传出错
				e.printStackTrace();
			}
		}
		return flag;
	}
	
	@RequestMapping(value = "/OutputExcel.do", produces = "application/form-data; charset=utf-8")
	@ResponseBody
	public String OutputExcel(HttpServletRequest request, HttpServletResponse response) throws Exception {
		request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8");
		response.setContentType("text/html,charset=utf-8");

		List list = excelService.OutputExcel();

		String message = OutputExcel.OutExcel(request, response, list);
		if (message.equals("fail")) {
			ServletOutputStream out = response.getOutputStream();
			message = "导出失败，请重试";
			String s = "";
			out.print(s);
		}
		return null;
	}

service:

        @Override
	public String InputExcel(InputStream is, String originalFilename) {
		Map ginsengMap = new HashMap();
		List> list;
		if (originalFilename.endsWith(".xls")) {
			list = Excel.readExcel2003(is);
		} else {
			list = Excel.readExcel2007(is);
		}
		for (int i=0,j=list.size();i row = list.get(i);
			ginsengMap.put("name", row.get(0).toString());
			ginsengMap.put("sex", row.get(1).toString());
	        ginsengMap.put("email", row.get(2).toString());
	        ginsengMap.put("dept_id", row.get(3).toString());
	        excelMapper.InputExcel(ginsengMap);
		}
		return "01";
	}

	@Override
	public List OutputExcel() {
		return excelMapper.getAll();
	}

mapper.xml:

	
		
		
		
		
		
	

	
		
		
		
		
		
		
		
			
			
		
	

	
		insert into wei.emp_t (name,sex,email,dept_id) values
		(#{name },#{sex },#{email },#{dept_id },)
	

	
		e.id, e.name, e.sex, e.email, e.dept_id, d.d_id, d.d_name
	

	
		
			
				
					
						
							
								
									and ${criterion.condition}
								
								
									and ${criterion.condition} #{criterion.value}
								
								
									and ${criterion.condition} #{criterion.value} and
									#{criterion.secondValue}
								
								
									and ${criterion.condition}
									
										#{listItem}
									
								
							
						
					
				
			
		
	

	
		select
		
			distinct
		
		
		FROM emp_t e
		left join dept_t d on e.`dept_id`=d.`d_id` order by e.id
		
			
		
	

4，解析excel的工具类：

excel文件传至服务端：

public static String upload(HttpServletRequest request, HttpServletResponse response) {

		DiskFileItemFactory factory = new DiskFileItemFactory();
		factory.setSizeThreshold(MEMORY_THRESHOLD);
		factory.setRepository(new File(System.getProperty("java.io.tmpdir")));
		ServletFileUpload upload = new ServletFileUpload(factory);
		upload.setFileSizeMax(MAX_FILE_SIZE);
		upload.setSizeMax(MAX_REQUEST_SIZE);
		upload.setHeaderEncoding("UTF-8");
		String uploadPath = request.getSession().getServletContext().getRealPath("/") + UPLOAD_DIRECTORY;
		File uploadDir = new File(uploadPath);
		if (!uploadDir.exists()) {
			uploadDir.mkdir();
		}
		try {
			@SuppressWarnings("unchecked")
			List formItems = upload.parseRequest(request);
			if (formItems != null && formItems.size() > 0) {
				for (FileItem item : formItems) {
					if (!item.isFormField()) {
						String fileName = new File(item.getName()).getName();
						filePath = uploadPath + File.separator + fileName;
						File storeFile = new File(filePath);
						item.write(storeFile);
					}
				}
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return filePath;
	}

读取Excel文件：

public static ArrayList> readExcel2003(InputStream is) {
		try {
			ArrayList> rowList = new ArrayList>();
			ArrayList