EasyExcel 使用

同步读

String fileName = "C:\\Users\\31094\\Desktop\\副本电压电流曲线.xlsx";
List<IndexOrNameData> list = EasyExcel.read(fileName)
        .head(IndexOrNameData.class)
        .sheet(0)
        .headRowNumber(0) // 第0行就是数据
        // 添加时间转换器
        .registerConverter(new Converter<LocalDateTime>() {
            @Override
            public Class<?> supportJavaTypeKey() {
                return LocalDateTime.class;
            }

            // 遇到String 可以进行转换
            @Override
            public CellDataTypeEnum supportExcelTypeKey() {
                return CellDataTypeEnum.STRING;
            }
            // 转换的目标对象是 LocalDateTime
            @Override
            public LocalDateTime convertToJavaData(ReadCellData<?> cellData,
                                                   ExcelContentProperty contentProperty,
                                                   GlobalConfiguration globalConfiguration) {
                String stringValue = cellData.getStringValue();
                DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-M-d HH:mm");
                return LocalDateTime.parse(stringValue, dateTimeFormatter);
            }
        }).doReadSync();