描述：excel导出

ics-admin/pom.xml

@@ -67,6 +67,23 @@
             <version>0.4.2</version>
         </dependency>
 
+        <!--    easypoi     -->
+        <dependency>
+            <groupId>cn.afterturn</groupId>
+            <artifactId>easypoi-base</artifactId>
+            <version>4.1.0</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.afterturn</groupId>
+            <artifactId>easypoi-web</artifactId>
+            <version>4.1.0</version>
+        </dependency>
+        <dependency>
+            <groupId>cn.afterturn</groupId>
+            <artifactId>easypoi-annotation</artifactId>
+            <version>4.1.0</version>
+        </dependency>
+
     </dependencies>
 
 </project>

ics-admin/src/main/java/com/ics/admin/controller/CustomerStaffController.java

@@ -10,7 +10,9 @@ import com.ics.admin.domain.meeting.*;
 import com.ics.admin.listener.ImportPowerWaterFeeListener;
 import com.ics.admin.service.*;
 import com.ics.admin.service.meeting.*;
+import com.ics.admin.utils.EasyPoiUtils;
 import com.ics.admin.utils.ExcelView;
+import com.ics.admin.utils.SellerVO;
 import com.ics.admin.vo.ImportPowerWaterFeeVO;
 import com.ics.common.constant.Constants;
 import com.ics.common.core.controller.BaseController;
@@ -44,6 +46,7 @@ import java.io.IOException;
 import java.io.UnsupportedEncodingException;
 import java.math.BigDecimal;
 import java.net.URLEncoder;
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
@@ -293,9 +296,20 @@ public class CustomerStaffController extends BaseController {
     @Ignore
     @PostMapping("/exportTemplate")
     public void exportTemplate(HttpServletResponse response) throws IOException {
-        List<IcsCustomerStaff> icsCustomerStaffs = icsCustomerStaffService.selectIcsCustomerStaffList(new IcsCustomerStaff());
-        ExcelUtil<IcsCustomerStaff> util = new ExcelUtil<IcsCustomerStaff>(IcsCustomerStaff.class);
-        util.exportExcel(icsCustomerStaffs, "客户员工表");
+//        List<IcsCustomerStaff> icsCustomerStaffs = icsCustomerStaffService.selectIcsCustomerStaffList(new IcsCustomerStaff());
+//        ExcelUtil<IcsCustomerStaff> util = new ExcelUtil<IcsCustomerStaff>(IcsCustomerStaff.class);
+//        util.exportExcel(icsCustomerStaffs, "客户员工表");
+
+        SellerVO sellerVO = new SellerVO();
+        sellerVO.setId("1");
+        sellerVO.setName("admin");
+        sellerVO.setPhoneNo("10086");
+        List<SellerVO> sellerVOList = new ArrayList<>();
+        sellerVOList.add(sellerVO);
+        String title = "全部商家";
+        String sheetName = "数据";
+        String fileName = sheetName + "-" + new SimpleDateFormat("yyyy-MM-dd").format(new Date()) + ".xls";
+        EasyPoiUtils.exportExcel(sellerVOList, title, sheetName, SellerVO.class, fileName, true, response);
     }
 
 

ics-admin/src/main/java/com/ics/admin/utils/EasyPoiUtils.java

@@ -0,0 +1,167 @@
+package com.ics.admin.utils;
+
+import cn.afterturn.easypoi.excel.ExcelExportUtil;
+import cn.afterturn.easypoi.excel.ExcelImportUtil;
+import cn.afterturn.easypoi.excel.entity.ExportParams;
+import cn.afterturn.easypoi.excel.entity.ImportParams;
+import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.servlet.http.HttpServletResponse;
+import java.io.File;
+import java.io.IOException;
+import java.net.URLEncoder;
+import java.util.List;
+import java.util.Map;
+import java.util.NoSuchElementException;
+
+public class EasyPoiUtils {
+
+    public static void sellerExportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName, HttpServletResponse response) {
+        defaultExport(list, pojoClass, fileName, response, new ExportParams(title, sheetName));
+    }
+
+    /**
+     * 功能描述：复杂导出Excel，包括文件名以及表名。创建表头
+     *
+     * @param list 导出的实体类
+     * @param title 表头名称
+     * @param sheetName sheet表名
+     * @param pojoClass 映射的实体类
+     * @param isCreateHeader 是否创建表头
+     * @param fileName
+     * @param response
+     * @return
+     */
+    public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName, boolean isCreateHeader, HttpServletResponse response) {
+        ExportParams exportParams = new ExportParams(title, sheetName);
+        exportParams.setCreateHeadRows(isCreateHeader);
+        defaultExport(list, pojoClass, fileName, response, exportParams);
+    }
+
+
+    /**
+     * 功能描述：Map 集合导出
+     *
+     * @param list 实体集合
+     * @param fileName 导出的文件名称
+     * @param response
+     * @return
+     */
+    public static void exportExcel(List<Map<String, Object>> list, String fileName, HttpServletResponse response) {
+        defaultExport(list, fileName, response);
+    }
+
+    /**
+     * 功能描述：默认导出方法
+     *
+     * @param list 导出的实体集合
+     * @param fileName 导出的文件名
+     * @param pojoClass pojo实体
+     * @param exportParams ExportParams封装实体
+     * @param response
+     * @return
+     */
+    private static void defaultExport(List<?> list, Class<?> pojoClass, String fileName, HttpServletResponse response, ExportParams exportParams) {
+        Workbook workbook = ExcelExportUtil.exportExcel(exportParams, pojoClass, list);
+        if (workbook != null) {
+            downLoadExcel(fileName, response, workbook);
+        }
+    }
+
+    /**
+     * 功能描述：Excel导出
+     *
+     * @param fileName 文件名称
+     * @param response
+     * @param workbook Excel对象
+     * @return
+     */
+    private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) {
+        try {
+            response.setCharacterEncoding("UTF-8");
+            response.setHeader("content-Type", "application/vnd.ms-excel");
+            response.setHeader("Content-Disposition", "attachment;filename=" +URLEncoder.encode(fileName, "UTF-8") );
+            workbook.write(response.getOutputStream());
+
+        } catch (IOException e) {
+            throw new  RuntimeException(e);
+        }
+    }
+
+    /**
+     * 功能描述：默认导出方法
+     *
+     * @param list 导出的实体集合
+     * @param fileName 导出的文件名
+     * @param response
+     * @return
+     */
+    private static void defaultExport(List<Map<String, Object>> list, String fileName, HttpServletResponse response) {
+        Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.HSSF);
+        if (workbook != null) ;
+        downLoadExcel(fileName, response, workbook);
+    }
+
+
+    /**
+     * 功能描述：根据文件路径来导入Excel
+     *
+     * @param filePath 文件路径
+     * @param titleRows 表标题的行数
+     * @param headerRows 表头行数
+     * @param pojoClass Excel实体类
+     * @return
+     */
+    public static <T> List<T> importExcel(String filePath, Integer titleRows, Integer headerRows, Class<T> pojoClass) {
+        //判断文件是否存在
+        if (StringUtils.isBlank(filePath)) {
+            return null;
+        }
+        ImportParams params = new ImportParams();
+        params.setTitleRows(titleRows);
+        params.setHeadRows(headerRows);
+        List<T> list = null;
+        try {
+            list = ExcelImportUtil.importExcel(new File(filePath), pojoClass, params);
+        } catch (NoSuchElementException e) {
+            throw new RuntimeException("模板不能为空");
+        } catch (Exception e) {
+            e.printStackTrace();
+
+        }
+        return list;
+    }
+
+    /**
+     * 功能描述：根据接收的Excel文件来导入Excel,并封装成实体类
+     *
+     * @param file 上传的文件
+     * @param titleRows 表标题的行数
+     * @param headerRows 表头行数
+     * @param pojoClass Excel实体类
+     * @return
+     */
+    public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass) {
+        if (file == null) {
+            return null;
+        }
+        ImportParams params = new ImportParams();
+        params.setTitleRows(titleRows);
+        params.setHeadRows(headerRows);
+        List<T> list = null;
+        try {
+            list = ExcelImportUtil.importExcel(file.getInputStream(), pojoClass, params);
+        } catch (NoSuchElementException e) {
+            throw new RuntimeException("excel文件不能为空");
+        } catch (Exception e) {
+            throw new RuntimeException(e.getMessage());
+
+        }
+        return list;
+    }
+}

ics-admin/src/main/java/com/ics/admin/utils/SellerVO.java

@@ -0,0 +1,26 @@
+package com.ics.admin.utils;
+
+
+import cn.afterturn.easypoi.excel.annotation.Excel;
+import lombok.Data;
+
+
+@Data
+public class SellerVO {
+    /**
+     * 商户ID
+     */
+    @Excel(name = "ID", height = 11, width = 15)
+    private String id;
+    /**
+     * 商户电话
+     */
+    @Excel(name = "账号", height = 11, width = 15)
+    private String phoneNo;
+    /**
+     * 商户名称
+     */
+    @Excel(name = "商户名称", height = 11, width = 15)
+    private String name;
+
+}