ssm 导入Excel表格

导入Excel：

Excel信息：

显示效果：

需要的jar

        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
		<dependency>
			<groupId>org.apache.poi</groupId>
			<artifactId>poi</artifactId>
			<version>3.17</version>
		</dependency>

		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.2.1</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
		<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>2.4</version>
		</dependency>

springMvc.xml中配置上传文件的组件---CommonsMultipartResolver.

    <bean id="multipartResolver"     
       class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- 上传文件的最大限制  -->
		<property name="maxUploadSize" value="10485760"></property>
		<property name="defaultEncoding" value="UTF-8"></property>
	</bean>

页面---我这里使用的是ajax异步提交

<body>
	<form id="uploadForm" action="" method="post" enctype="multipart/form-data">
		<input type="file" name="file"/><input id="upload" type="button" value="上传数据"/>
	</form>
	
</body>
<script type="text/javascript" src="${pageContext.request.contextPath }/js/jquery-1.12.4.min.js"></script>
<script type="text/javascript">
//上传用户excel
$("#upload").click(function(){
	$.ajax({
		type : "POST",
		url : "${pageContext.request.contextPath }/ri/upload",
		data : new FormData($('#uploadForm')[0]),
		processData : false,
		contentType : false,
		success:function(result){
			alert(result);
            //你可以跳转或者在本页面提示错误信息
			//window.location.href = "${pageContext.request.contextPath }/ri/toOk"
		} 	
	});
});
</script>

处理上传的excel--controller

    @RequestMapping(value = "upload", produces = "text/html;charset=UTF-8")
	@ResponseBody
	public String upload(@RequestParam("file") MultipartFile file, HttpSession session) {

		// 错误信息  （可以定义一个结果类用于保存信息-错误个数，正确个数，错误信息等）
		ArrayList<String> errors = new ArrayList<String>();
        

		try {
			if (!file.isEmpty() && file.getOriginalFilename().endsWith("xls")) {
				// poi--exl解析
				InputStream is = file.getInputStream();
				HSSFWorkbook hssf = new HSSFWorkbook(is);
                //Sheet1-----是Excel表格左下方的名称
				HSSFSheet sheet = hssf.getSheet("Sheet1");

                //读取Excel表格从下标0开始（表头开始）
				for (int i = 1; i <= sheet.getLastRowNum(); i++) {
                    
					HSSFCell riName = sheet.getRow(i).getCell(0);
					HSSFCell riBegin = sheet.getRow(i).getCell(1);
					HSSFCell sName1 = sheet.getRow(i).getCell(2);
					HSSFCell sName2 = sheet.getRow(i).getCell(3);
					HSSFCell riEnd = sheet.getRow(i).getCell(4);
					HSSFCell riDistance = sheet.getRow(i).getCell(5);
					HSSFCell riFreight = sheet.getRow(i).getCell(6);

					if (riName == null) {
						errors.add("错误行："+(i+1)+",错误信息:路线名称----不能为空！");
						continue;
					}
					if (riBegin == null) {
						errors.add("错误行："+(i+1)+",错误信息:起点站----不能为空");
						continue;
					}
					if (riEnd == null) {
						errors.add("错误行："+(i+1)+",错误信息:终点站----不能为空");
						continue;
					}
					if (riDistance == null || Double.parseDouble(riDistance.toString()) < 0) {
						errors.add("错误行："+(i+1)+",错误信息:距离----不能为空并且>0");
						continue;
					}
					if (riFreight == null || Double.parseDouble(riFreight.toString()) < 0) {
						errors.add("错误行："+(i+1)+",错误信息:价格----不能为空并且>0");
						continue;
					}
					
					// 途经站个数
					int riStandNum = 0;
					if (sName1 != null) {
						riStandNum++;
					}
					if (sName2 != null) {
						riStandNum++;
					}
					int rs_riId = 0;
					RouteInfo ri = new RouteInfo(riName.toString(), riBegin.toString(), riEnd.toString(), riStandNum,
							Double.parseDouble(riDistance.toString()), Double.parseDouble(riFreight.toString()));
					//判断路线是否存在
					if(routeInfoService.findIsRiName(ri) != 1) {
						//不存在
						//插入数据
						routeInfoService.insert(ri);
						//获得插入时的路线id
						rs_riId = ri.getRiId();
					}else {
						//存在
						errors.add("该路线："+ri.getRiName()+"  已存在");
						continue;
					}

					Stand s1 = new Stand(riBegin.toString());
					Stand s2 = new Stand(riEnd.toString());
					if(standService.findIsSName(s1) != 1) {
						//数据库中不存在
						standService.insert(s1);
					}
					if(standService.findIsSName(s2) != 1) {
						//数据库中不存在
						standService.insert(s2);
					}
					
					//获得途经站id
					Integer rs_sId1 = null;
					Integer rs_sId2 = null;
					if (sName1 != null) {
						Stand s = new Stand(sName1.toString());
						//根据途经站名称查询数据库中是否存在
						if(standService.findIsSName(s) != 1) {
							//数据库中不存在
							standService.insert(s);
							rs_sId1 = s.getsId();
						}else {
							//数据库中存在
							rs_sId1 = standService.findsIdBySName(s);
						}
					}
					if (sName2 != null) {
						Stand s = new Stand(sName2.toString());
						//根据途经站名称查询数据库中是否存在
						if(standService.findIsSName(s) != 1) {
							//数据库中不存在
							standService.insert(s);
							rs_sId2 = s.getsId();
						}else {
							//数据库中存在
							rs_sId2 = standService.findsIdBySName(s);
						}
					}
					
					//插入路线和路线点对应关系
					RouteStand rs = new RouteStand(rs_riId, rs_sId1, rs_sId2);
					routeStandService.insert(rs);
				}
				is.close();
			}
            //json 数据数据格式
            //Gson gson = new Gson();
            //gson.toJson(errors);
		} catch (Exception e) {
			e.printStackTrace();
		}
		session.setAttribute("errors", errors);
		return "ok";
	}

导入Excel：

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