content: package com.alibaba.excel.converters.date;
  
  import java.text.ParseException;
  import java.util.Date;
  
  import com.alibaba.excel.converters.Converter;
  import com.alibaba.excel.enums.CellDataTypeEnum;
  import com.alibaba.excel.metadata.GlobalConfiguration;
  import com.alibaba.excel.metadata.data.ReadCellData;
  import com.alibaba.excel.metadata.data.WriteCellData;
  import com.alibaba.excel.metadata.property.ExcelContentProperty;
  import com.alibaba.excel.util.DateUtils;
  
  /**
   * Date and string converter
   *
   * @author Jiaju Zhuang
   */
  public class DateStringConverter implements Converter<Date> {
      @Override
      public Class<?> supportJavaTypeKey() {
          return Date.class;
      }
  
      @Override
      public CellDataTypeEnum supportExcelTypeKey() {
          return CellDataTypeEnum.STRING;
      }
  
      @Override
      public Date convertToJavaData(ReadCellData<?> cellData, ExcelContentProperty contentProperty,
          GlobalConfiguration globalConfiguration) throws ParseException {
          if (contentProperty == null || contentProperty.getDateTimeFormatProperty() == null) {
              return DateUtils.parseDate(cellData.getStringValue(), null);
          } else {
              return DateUtils.parseDate(cellData.getStringValue(),
                  contentProperty.getDateTimeFormatProperty().getFormat());
          }
      }
  
      @Override
      public WriteCellData<?> convertToExcelData(Date value, ExcelContentProperty contentProperty,
          GlobalConfiguration globalConfiguration) {
          if (contentProperty == null || contentProperty.getDateTimeFormatProperty() == null) {
              return new WriteCellData<>(DateUtils.format(value, null));
          } else {
              return new WriteCellData<>(DateUtils.format(value, contentProperty.getDateTimeFormatProperty().getFormat()));
          }
      }
  }
  