[2018-01-09 16:34:37] [ERROR] [org.jeecgframework.poi.excel.export.ExcelExportServer:171] Invalid column index (256). Allowable column range for BIFF8 is (0..255) or ('A'..'IV')
java.lang.IllegalArgumentException: Invalid column index (256). Allowable column range for BIFF8 is (0..255) or ('A'..'IV')
at org.apache.poi.hssf.usermodel.HSSFCell.checkBounds(HSSFCell.java:939)
at org.apache.poi.hssf.usermodel.HSSFCell.<init>(HSSFCell.java:153)
at org.apache.poi.hssf.usermodel.HSSFRow.createCell(HSSFRow.java:148)
at org.apache.poi.hssf.usermodel.HSSFRow.createCell(HSSFRow.java:126)
at org.apache.poi.hssf.usermodel.HSSFRow.createCell(HSSFRow.java:39)
at org.jeecgframework.poi.excel.export.base.ExcelExportBase.createStringCell(ExcelExportBase.java:222)
at org.jeecgframework.poi.excel.export.ExcelExportServer.createHeaderRow(ExcelExportServer.java:82)
at org.jeecgframework.poi.excel.export.ExcelExportServer.createHeaderAndTitle(ExcelExportServer.java:62)