easyExcel怎么导出到excel
这篇文章主要介绍“easyExcel怎么导出到excel”,在日常操作中,相信很多人在easyExcel怎么导出到excel问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答”easyExcel怎么导出到excel”的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
import com.alibaba.excel.EasyExcelFactory;import com.alibaba.excel.metadata.Sheet;import com.alibaba.fastjson.JSONObject;
String sql = "select top 1000 * from xxx ";
List<List<Object>> data = new ArrayList<>();final String filename="a.csv";final String filePath = ExcelConstants.EXCEL_TEMP_PATHS+ File.separator +filename;List<Map<String,Object>> objList = null;try { objList = (List<Map<String, Object>>) new BaseDAO().executeQuery(sql,new MapListProcessor());} catch (DAOException e) { Logger.error(e.getMessage(),e); throw new RuntimeException(e.getMessage());}boolean isNeedHead = true;for (int row = 0; row < objList.size();row++) { Map<String, Object> objMap = objList.get(row); List colList = new ArrayList(); for (Map.Entry<String, Object> objectEntry : objMap.entrySet()) { if(isNeedHead){ colList.add(objectEntry.getKey()); }else{ colList.add(objectEntry.getValue()); } } isNeedHead =false; data.add(colList);} Sheet initSheet = new Sheet(1, 0);initSheet.setSheetName("sheet");initSheet.setAutoWidth(Boolean.TRUE);//设置自适应宽度OutputStream outputStream = null;com.alibaba.excel.ExcelWriter writer = null;try { outputStream = new FileOutputStream(filePath); writer = EasyExcelFactory.getWriter(outputStream); writer.write1(data,initSheet);} catch (FileNotFoundException e) { Logger.error(e.getMessage(),e);}finally { try { if(writer != null){ writer.finish(); } if(outputStream != null){ outputStream.close(); } } catch (IOException e) { Logger.error(e.getMessage(),e); } }
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