EasyPOI：作用是對辦公文件(word,excel.ppt)進行上傳和下載，特點就是easy
maven項目導包：
<!--easypoi的支持包-->
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>3.2.0</version>
</dependency>
官方文檔:http://easypoi.mydoc.io/
導出功能：
EasyPOI可以繼承SpringMVC
掃描view和 配置視圖解析器
<!--掃描excel的view包--> <context:component-scan base-package="cn.afterturn.easypoi.view" /> <context:component-scan base-package="cn.king.aisell.common" /> <!--根據bean的名稱去返回 p:order順序在前面 --> <bean id="beanNameViewResolver" class="org.springframework.web.servlet.view.BeanNameViewResolver" p:order="0" />
准備前台頁面和傳入相應的查詢數據
<form id="searchForm" method="post" action="/employee/export"> 用戶名: <input name="username" class="easyui-text" style="width:80px"> 郵箱: <input name="email" class="easyui-text" style="width:80px"> 部門:<input name="departmentId" class="easyui-combobox" name="dept" panelHeight="auto" style="width:120px" data-options="valueField:'id',textField:'name',url:'/util/departmentList',editable:false"/> <a href="javascript:;" data-cmd="search" class="easyui-linkbutton" iconCls="icon-search">搜索</a> <a href="javascript:;" data-cmd="reset" class="easyui-linkbutton" data-options="iconCls:'icon-reload'">重置</a> <shiro:hasPermission name="employee:export"> <button class="easyui-linkbutton" iconCls="icon-print" plain="true">導出</button> </shiro:hasPermission> </form>
后台接收參數進行導出
//員工數據導出 @RequestMapping("/export") public String exportEmployee(ModelMap map, EmployeeQuery query, HttpServletRequest request){ //通過高級查詢拿數據 List<Employee> list = iEmployeeService.findByQuery(query); //拿到員工頭像路徑 String realPath = request.getServletContext().getRealPath(""); list.forEach(e -> { e.setHeadImage(realPath + e.getHeadImage()); }); //將從數據庫中拿到的信息導出到前台 ExportParams params = new ExportParams("員工管理", "員工信息表", ExcelType.XSSF); // 數據集合(導出的數據) map.put(NormalExcelConstants.DATA_LIST, list); //導出實體 map.put(NormalExcelConstants.CLASS, Employee.class); //參數 map.put(NormalExcelConstants.PARAMS, params); //文件名稱 map.put(NormalExcelConstants.FILE_NAME, "員工信息表"); //View名稱 return NormalExcelConstants.EASYPOI_EXCEL_VIEW; }
導入功能
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>導入管理</title>
<jsp:include page="BaseUI.jsp"></jsp:include>
</head>
<body>
<form action="/import/employeeXlsx" method="post" enctype="multipart/form-data">
<input class="easyui-filebox" name="empFile" style="width:20%"
data-options="prompt:'選擇一個文件...',buttonText: '選擇文件'" />
<button class="easyui-linkbutton">導入</button>
</form>
<h3 style="color: red">上傳說明</h3>
<h4>
上傳必須以下載的excel格式為准
</h4>
<h4>
用戶名不得為空值或重復得值
</h4>
<h4>
年齡應為20-80歲之間
</h4>
<h4>
如果上傳的文件不符合要求
</h4>
<h4>
在上傳提交后會出現上傳失敗文件，里面有上傳失敗的內容和原因
</h4>
<h4>
若無提示，則表示上傳成功
</h4>
</body>
</html>
導入后台
//上傳員工excel的功能 @RequestMapping("/employeeXlsx") public String employeeXlsx(MultipartFile empFile, HttpServletResponse response) throws Exception{ //設置導入的參數 ImportParams params = new ImportParams(); //設置需要驗證 params.setNeedVerfiy(true); params.setHeadRows(1); //加入自定義驗證 params.setVerifyHandler(employeeExcelVerifyHandler); //獲得excel但如的結果 ExcelImportResult<Employee> result = ExcelImportUtil.importExcelMore( empFile.getInputStream(), Employee.class, params); //拿到正確的數據，然后把它們保存到數據庫 List<Employee> list = result.getList(); list.forEach(e ->{ //從數據庫中查詢部門 String deptName = e.getDepartmentId().getName(); Department dept = iDepartmentService.findByName(deptName); e.setDepartmentId(dept); //設置初始密碼 String md5EncryptionByPassword = MD5EncryptionByPassword.MD_5_ENCRYPTION_BY_PASSWORD.getMD5EncryptionByPassword("123"); e.setPassword(md5EncryptionByPassword); iEmployeeService.save(e); }); //如果有錯誤 if(result.isVerfiyFail()) { //獲得Workbook對象，以返回失敗文檔 Workbook failWorkbook = result.getFailWorkbook(); //設置響應的文件類型 response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"); //attachment:不要用瀏覽器打開 response.setHeader("Content-disposition", "attachment;filename=empFail.xlsx"); //設置不要緩存 response.setHeader("Pragma", "No-cache"); OutputStream ouputStream = response.getOutputStream(); failWorkbook.write(ouputStream); ouputStream.flush(); ouputStream.close(); } return "importManage"; }
導入驗證包
<dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>5.2.4.Final</version> </dependency>
domain類加上驗證的注解
@Excel(name = "用戶名") @NotNull(message = "用戶名不為空") private String username; private String password; @Excel(name = "郵箱",width = 20) private String email; @Excel(name = "頭像",type = 2,height = 30) private String headImage; @Excel(name = "年齡") @Max(value = 80,message = "年齡最大值不能超過80") @Min(value = 20,message = "年齡最大值不能小於20") private Integer age; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "department_id") @ExcelEntity//導出的是實體對象 private Department departmentId;
加上自定義驗證
掃描自定義驗證的包 <context:component-scan base-package="cn.king.aisell.common" />
自定義驗證功能
@Component public class EmployeeExcelVerifyHandler implements IExcelVerifyHandler<Employee> { @Autowired private IEmployeeService iemployeeService; @Override public ExcelVerifyHandlerResult verifyHandler(Employee employee) { //寫邏輯驗證用戶名是否重復 boolean success = iemployeeService.checkName(employee.getUsername()); if(success){ //true代表可以用 return new ExcelVerifyHandlerResult(true); } return new ExcelVerifyHandlerResult(false,"用戶名重復"); } }
完成controller上傳
//上傳員工excel的功能 @RequestMapping("/employeeXlsx") public String employeeXlsx(MultipartFile empFile, HttpServletResponse response) throws Exception{ //設置導入的參數 ImportParams params = new ImportParams(); //設置需要驗證 params.setNeedVerfiy(true); params.setHeadRows(1); //加入自定義驗證 params.setVerifyHandler(employeeExcelVerifyHandler); //獲得excel但如的結果 ExcelImportResult<Employee> result = ExcelImportUtil.importExcelMore( empFile.getInputStream(), Employee.class, params); //拿到正確的數據，然后把它們保存到數據庫 List<Employee> list = result.getList(); list.forEach(e ->{ //從數據庫中查詢部門 String deptName = e.getDepartmentId().getName(); Department dept = iDepartmentService.findByName(deptName); e.setDepartmentId(dept); //設置初始密碼 String md5EncryptionByPassword = MD5EncryptionByPassword.MD_5_ENCRYPTION_BY_PASSWORD.getMD5EncryptionByPassword("123"); e.setPassword(md5EncryptionByPassword); iEmployeeService.save(e); }); //如果有錯誤 if(result.isVerfiyFail()) { //獲得Workbook對象，以返回失敗文檔 Workbook failWorkbook = result.getFailWorkbook(); //設置響應的文件類型 response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"); //attachment:不要用瀏覽器打開 response.setHeader("Content-disposition", "attachment;filename=empFail.xlsx"); //設置不要緩存 response.setHeader("Pragma", "No-cache"); OutputStream ouputStream = response.getOutputStream(); failWorkbook.write(ouputStream); ouputStream.flush(); ouputStream.close(); } return "importManage"; }