This section will share to you, to achieve the export and import of Excel tables, easy to use plug-ins.
package com.sf.vsolution.hb.sfce.util.excel; import com.alibaba.excel.EasyExcelFactory; import com.alibaba.excel.ExcelWriter; import com.alibaba.excel.context.AnalysisContext; import com.alibaba.excel.event.AnalysisEventListener; import com.alibaba.excel.metadata.BaseRowModel; import com.alibaba.excel.metadata.Sheet; import com.alibaba.excel.support.ExcelTypeEnum; import com.alibaba.excel.util.CollectionUtils; import lombok.Data; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.util.StringUtils; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletResponse; import java.io.*; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Map; /** * @description: 阿里巴巴EasyExcel工具 * @author: zhucj * @date: 2019-11-05 13:22 */ public class EasyExcelUtils { private static finalLoggerFactory.getLogger Logger = Logger (EasyExcelUtils. Class ); Private static Sheet initSheet; static { initSheet = new new Sheet (. 1, 0 ); initSheet.setSheetName ( "Sheet" ); // set the width adaptive initSheet.setAutoWidth (Boolean. TRUE); } / ** * introducing * less than 1000 rows default style * @param filePath file absolute path * @return * / public static List <Object> readLessThan1000Row (String filePath) { returnreadLessThan1000RowBySheet (filePath, null ); } / ** * introducing * less than 1000 rows of data with style * @param filePath file absolute path * @param Sheet * @return * / public static List <Object> readLessThan1000RowBySheet (String filePath, Sheet Sheet) { IF (! ) {StringUtils.hasText (filePath) return null ; } Sheet = Sheet =! null ? Sheet: initSheet; the inputStream inputStream =null ; the try { inputStream = new new ; the FileInputStream (filePath) return EasyExcelFactory.read (inputStream, Sheet); } the catch (a FileNotFoundException E) { logger.error ( "file path or file not found error" , E); } the finally { the try { IF (inputStream =! null ) { inputStream.close (); } } the catch (IOException E) { logger.error ("excel file read failed, failure reason: {}" , E); } } return null ; } / ** * introducing * default style data line is greater than 1000 * @param filePath * @return * / public static List <Object> readMoreThan1000Row (String filePath) { return readMoreThan1000RowBySheet (filePath, null ); } / ** * import * is more than 1000 rows custom styles * @param filePath * @param Sheet * @return */ public static List<Object> readMoreThan1000RowBySheet(String filePath, Sheet sheet) { if (!StringUtils.hasText(filePath)) { return null; } sheet = sheet != null ? sheet : initSheet; InputStream inputStream = null; try { inputStream = new FileInputStream(filePath); ExcelListener excelListener = new ExcelListener(); EasyExcelFactory.readBySax (inputStream, Sheet, excelListener); return excelListener.getDatas (); } the catch (a FileNotFoundException E) { logger.error ( "file path or file not found error" ); } the finally { the try { IF (inputStream! = null ) { inputStream.close (); } } the catch (IOException E) { logger.error ( "Excel file read failed, failure reason: {}" , E); } } return null ; } / ** * exporting a single sheet * @Param the Response * @param dataList * @param Sheet * @param fileName * @throws UnsupportedEncodingException * / public static void writeExcelOneSheet (HttpServletResponse the Response, List <? The extends BaseRowModel> dataList, Sheet Sheet, String fileName) { IF (CollectionUtils.isEmpty (dataList)) { the throw new new a RuntimeException ( "derived data table is empty!" ); } // if the sheet is empty, the default IF (null == sheet) { sheet = initSheet; } try { String value = "attachment; filename=" + new String( (fileName + new SimpleDateFormat("yyyyMMdd").format(new Date()) + ExcelTypeEnum.XLSX.getValue()).getBytes("gb2312"), "ISO8859-1"); response.setContentType("multipart/form-data"); response.setCharacterEncoding("utf-8"); response.setContentType("application/vnd.ms-excel;charset=utf-8"); response.setHeader("Content-disposition", value); ServletOutputStream out = response.getOutputStream(); ExcelWriter writer = EasyExcelFactory.getWriter(out, ExcelTypeEnum.XLSX, true); // 设置属性类 sheet.setClazz(dataList.get(0).getClass()); writer.write(dataList, sheet); writer.finish(); out.flush(); } catch (IOException e) { logger.error("导出失败，失败原因：{}", e); } } / ** * @author Lockie * @Description export excel table deriving a plurality of support sheet * @Param the OutputStream output stream * Map <String, List> sheetName each sheet data * ExcelTypeEnum type are to be exported excel ExcelTypeEnum.xls and have ExcelTypeEnum.xlsx * @date 12:16 aM 2019/1/31 * / public static void writeExcelMutilSheet (HttpServletResponse the Response, the Map <String, List <? the extends BaseRowModel >> dataList, String fileName) throws UnsupportedEncodingException { IF (CollectionUtils.isEmpty (dataList)) { the throw new new a RuntimeException ( "derived data table is empty!" ); } the try { String value= "attachment; filename=" + new String( (fileName + new SimpleDateFormat("yyyyMMdd").format(new Date()) + ExcelTypeEnum.XLSX.getValue()).getBytes("gb2312"), "ISO8859-1"); response.setContentType("multipart/form-data"); response.setCharacterEncoding("utf-8"); response.setContentType("application/vnd.ms-excel;charset=utf-8"); response.setHeader("Content-disposition", value); ServletOutputStream out = response.getOutputStream(); ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, true); // 设置多个sheet setMutilSheet(dataList, writer); writer.finish(); out.flush(); } catch (IOException e) { logger.error("导出异常", e); } } /** * @Author lockie * @Description //setSheet数据 * @Date 上午12:39 2019/1/31 */ private static void setMutilSheet(Map<String, List<? extends BaseRowModel>> dataList, ExcelWriter writer) { int sheetNum = 1; for (Map.Entry<String, List<? extends BaseRowModel>> stringListEntry : dataList.entrySet()) { Sheet sheet = new Sheet(sheetNum, 0, stringListEntry.getValue().get(0).getClass()); sheet.setSheetName(stringListEntry.getKey()); writer.write(stringListEntry.getValue(), sheet); sheetNum++; } } /** * 导出监听 */ @Data public static classExcelListenerthe extends AnalysisEventListener { Private List <Object> = DATAS new new the ArrayList <> (); / ** * Progressive parsing * @param data object in the current row * @param analysisContext * / @Override public void Invoke (Object object, AnalysisContext analysisContext) { IF (Object =! null ) { datas.add (Object); } } / ** * this method is called after all the data has been parsed * @param analysisContext */ @Override public void doAfterAllAnalysed(AnalysisContext analysisContext) { } } }
package com.sf.detectprocess.controller.param.export; import com.alibaba.excel.annotation.ExcelProperty; import com.alibaba.excel.metadata.BaseRowModel; import com.sf.detectprocess.core.constant.SystemConstants; import lombok.*; import java.math.BigDecimal; import java.util.Date; /** * @description: 导出订单信息 * @author: zhucj * @date: 2019-11-05 15:48 */ @Data @Builder @NoArgsConstructor @AllArgsConstructor @ToString public class ExportComeInsureInfo extends{BaseRowModel @ExcelProperty (value = "order number", index = 0 ) Private String orderNo; @ExcelProperty (value = "line generation time", index =. 1, the format = SystemConstants.DEFAULT_DATETIME_FORMAT) Private a Date createTime; @ExcelProperty (value = "shipment date", index = 2 ) Private String comeTime; @ExcelProperty (value = "item name", index =. 3 ) Private String goodsInfo; @ExcelProperty (value = "number of packages", index =. 4 ) Private Integer countPack; @ ExcelProperty (value = "starting point"index = 5) private String comeSendAddress; @ExcelProperty(value = "终点",index = 6) private String comeConsignAddress; @ExcelProperty(value = "单号",index = 7) private String waybillNo; @ExcelProperty(value = "声明价值",index = 8) private BigDecimal sumInsureValue; }
<!--alibaba导出 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>1.1.2-beta5</version>
</dependency>