easypoi導入導出

<!-- 內建easypoi元件 http://easypoi.mydoc.io/ .start -->
<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>
<!-- 內建easypoi元件http://easypoi.mydoc.io/  .end -->

<!-- lombok可使代碼更簡潔 -->
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <scope>provided</scope>
</dependency>

@Data //注解在類上, 為類提供讀寫屬性, 此外還提供了 equals()、hashCode()、toString() 方法
@NoArgsConstructor //生成一個無參的構造函數
@AllArgsConstructor //生成一個有參構造函數 注意實體類中一定要有空構造函數
public class ExportPtRate {

    private static final long serialVersionUID = 1L;

    @Excel(name = "性别", orderNum = "0")
    private String gender;

    @Excel(name = "年齡", orderNum = "1")
    private String age;

    @Excel(name = "交費期", orderNum = "2")
    private String payendyearFactor;

    @Excel(name = "保障期", orderNum = "3")
    private String insuyearFactor;

    @Excel(name = "職業", orderNum = "4")
    private String occupation;

    @Excel(name = "有無社保", orderNum = "5")
    private String socialSec;

    @Excel(name = "保費", orderNum = "6")
    private String premium;

    
}

package com.ssish.saas.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.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.net.URLEncoder;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;

/**
 * @author 
 * @Description TODO
 * @date 2019/8/30 15:34
 */
public class EasyPoiUtils {


    public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass,String fileName,boolean isCreateHeader, HttpServletResponse response) throws Exception {
        ExportParams exportParams = new ExportParams(title, sheetName);
        exportParams.setCreateHeadRows(isCreateHeader);
        defaultExport(list, pojoClass, fileName, response, exportParams);

    }
    public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass,String fileName, HttpServletResponse response) throws Exception {
        defaultExport(list, pojoClass, fileName, response, new ExportParams(title, sheetName));
    }
    public static void exportExcel(List<Map<String, Object>> list, String fileName, HttpServletResponse response) throws Exception {
        defaultExport(list, fileName, response);
    }

    private static void defaultExport(List<?> list, Class<?> pojoClass, String fileName, HttpServletResponse response, ExportParams exportParams) throws Exception {
        Workbook workbook = ExcelExportUtil.exportExcel(exportParams,pojoClass,list);
        if (workbook != null);
        downLoadExcel(fileName, response, workbook);
    }

    private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) throws Exception {
        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 (Exception e) {
            /*throw new NormalException(e.getMessage());*/
            /*e.printStackTrace();*/
            throw new Exception(e.getMessage());
        }
    }
    private static void defaultExport(List<Map<String, Object>> list, String fileName, HttpServletResponse response) throws Exception {
        Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.HSSF);
        if (workbook != null);
        downLoadExcel(fileName, response, workbook);
    }

    public static <T> List<T> importExcel(String filePath,Integer titleRows,Integer headerRows, Class<T> pojoClass) throws Exception {
        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 Exception("模闆不能為空");
        }catch (Exception e) {
            /*throw new NormalException(e.getMessage());*/
            /*e.printStackTrace();*/
            throw new Exception(e.getMessage());
        }
        return list;
    }

    /**
     *
     * @param file
     * @param titleRows  标題行數
     * @param headerRows 表頭行數
     * @param pojoClass
     * @param <T>
     * @return
     * @throws Exception
     */
    public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass) throws Exception {
        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 Exception("excel檔案不能為空");
        } catch (Exception e) {
            /*throw new NormalException(e.getMessage());*/
            /*e.printStackTrace();*/
            throw new Exception(e.getMessage());
        }
        return list;
    }

    public static void main(String[] args) {
        //String filePath = "d:\\flb.xls";
        //解析excel，
        /*List<Person> personList = importExcel(filePath,1,1,Person.class);
        //也可以使用MultipartFile,使用 FileUtil.importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass)導入
        System.out.println("導入資料一共【"+personList.size()+"】行");*/

        //導出excel
        /*List<ExportPtRate> userList = getUserList();
        EasyPoiUtils.exportExcel(userList, "使用者清單", "使用者報表", ExportPtRate.class, "使用者明細報表.xls", response);*/

    }


}

@RequestMapping(value = "/importExcel")
@ResponseBody
public BaseResult<String> importExcel(@RequestParam("file") MultipartFile file) {
        BaseResult<String> baseResult = new BaseResult<String>();

        try {
            List<ExportPtRate> list= EasyPoiUtils.importExcel(file,0,1, ExportPtRate.class);
            /*for (ExportPtRate rate : list) {
                // System.out.println(User);
                logger.info("從Excel導入資料到資料庫的詳細為 ：{}", JSONObject.toJSONString(rate));
                //TODO 将導入的資料做儲存資料庫操作
            }*/
            if(list==null || list.size()==0){
                BaseResult<String> result = new BaseResult<>();
                result.setReturnCode(ReturnMsg.UNKONOW_ERROR.getCode());
                result.setReturnMsg("導入的資料不能為空");
                return result;
            }
            logger.info("從Excel導入資料一共 {} 行 ", list.size());                       
            baseResult = riskService.exportFeilvExcel(list);
        }catch (Exception e1) {
            logger.error("導入失敗：{}", e1.getMessage());
            baseResult.setReturnCode(ReturnMsg.UNKONOW_ERROR.getCode());
            baseResult.setReturnMsg(e1.getMessage());
        }
        return  baseResult;
    }

//導出excel:

@RequestMapping("/risk/exportExcel")
public void exportExcel(DataTableParam dataTableParam, HttpServletResponse response) throws Exception {
    BaseResult<List<ExportPtRate>> baseResult = new BaseResult<List<ExportPtRate>>();
    String coreUserId = String.valueOf(securityHelper.getCoreUserId());
    String userType = securityHelper.getUserType();
    Map<String, Object> map = getPtParams(dataTableParam);
    map.put("coreUserId", coreUserId);
    map.put("userType",userType);
    try {
        baseResult = riskService.getriskList(map);
        if(baseResult.getContent()!=null && baseResult.getContent().size()>0){
            List<ExportPtRate> list = baseResult.getContent();

//導出excel
            EasyPoiUtils.exportExcel(list, null, null, ExportPtRate.class, "險種費率報表.xls", response);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

}

.編寫html頁面和異步函數

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="../js/jquery-1.11.3.min.js"></script>
<script type="text/javascript">
function importExp() {
    var formData = new FormData();
    var name = $("#upfile").val();
    formData.append("file",$("#upfile")[0].files[0]);
    formData.append("name",name);
    $.ajax({
        url : '/lms/excelImportLock',
        type : 'POST',
        async : false,
        data : formData,
        // 告訴jQuery不要去處理發送的資料
        processData : false,
        // 告訴jQuery不要去設定Content-Type請求頭
        contentType : false,
        beforeSend:function(){
            console.log("正在進行，請稍候");
        },
        success : function(data) {
          alert(data.returnMsg);
        }
    });
}

</script>
</head>
<body>
<ul>
    <li>
         <span>上&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;傳：</span>
         <span class="input">
               <input type="file" id="upfile" name="upfile" placeholder=""/>
         </span>
         <button onclick="importExp();">導入</button>
         <span>格式：.xls</span>
     </li>
</ul>

</body>
</html>

easypoi導入導出

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