Warning: Maximum number of format records exceeded. Using default format.

http://blog.csdn.net/dracotianlong/article/details/8928434

Warning:  Maximum number of format records exceeded.  Using default format.  
Warning:  Maximum number of format records exceeded.  Using default format.  
Warning:  Maximum number of format records exceeded.  Using default format.  
Warning:  Maximum number of format records exceeded.  Using default format.  
Warning:  Maximum number of format records exceeded.  Using default format

java.util.Date day = (Date) labelValueObj;  
jxl.write.DateFormat df = new jxl.write.DateFormat("yyyy-MM-dd");  
jxl.write.DateTime dateCell = new jxl.write.DateTime(cell.getColumn(), cell.getRow() + j,  
        day, new WritableCellFormat(df));  
wSheet.addCell(dateCell);  

But出现了Warning:  Maximum number of format records exceeded.  Using default format.警告，并且大部分的时候时间类型的数据都不正确，变成数字

google一下，google是一个好东西，顺便骂下dangzy，为嘛墙了google在中国使用【去年我买了一个表】

说是源码设置 new WritableCellFormat 最多100个，过多就会出现Waring错误，

jxl.biff.FormattingRecords  
  
private static final int maxFormatRecordsIndex = 0x1b9;

需要修改成

private static final int maxFormatRecordsIndex = Integer.MAX_VALUE; 

编译好的jar包见附件。