同样一个文件,使用 excel 直接打开的,和使用 poi 读取,格式不一样 - V2EX
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git00ll
V2EX    Java

同样一个文件,使用 excel 直接打开的,和使用 poi 读取,格式不一样

  •  
  •   git00ll Oct 12, 2021 1818 views
    This topic created in 1659 days ago, the information mentioned may be changed or developed.

    excel.xlsx 文件 有一列时间,选择自定义格式为 yyyy/m/d h:mm 保存后,实际存储的为该内置格式对应的索引,即十进制 22,十六进制 0x16, 但是 poi4.1.2 内置默认格式类 BuiltinFormats 中存储的 0x16 对应的时间格式为 m/d/yy h:mm 。 这就导致同样一个文件,使用 excel 直接打开的,和使用 poi 读取的,格式不一样。

    /**

    •  0, "General"<br> 
    •  1, "0"<br> 
    •  2, "0.00"<br> 
    •  3, "#,##0"<br> 
    •  4, "#,##0.00"<br> 
    •  5, "$#,##0_);($#,##0)"<br> 
    •  6, "$#,##0_);[Red]($#,##0)"<br> 
    •  7, "$#,##0.00);($#,##0.00)"<br> 
    •  8, "$#,##0.00_);[Red]($#,##0.00)"<br> 
    •  9, "0%"<br> 
    •  0xa, "0.00%"<br> 
    •  0xb, "0.00E+00"<br> 
    •  0xc, "# ?/?"<br> 
    •  0xd, "# ??/??"<br> 
    •  0xe, "m/d/yy"<br> 
    •  0xf, "d-mmm-yy"<br> 
    •  0x10, "d-mmm"<br> 
    •  0x11, "mmm-yy"<br> 
    •  0x12, "h:mm AM/PM"<br> 
    •  0x13, "h:mm:ss AM/PM"<br> 
    •  0x14, "h:mm"<br> 
    •  0x15, "h:mm:ss"<br> 
    •  0x16, "m/d/yy h:mm"<br> 

    *

    •  // 0x17 - 0x24 reserved for international and undocumented 
    •  0x25, "#,##0_);(#,##0)"<br> 
    •  0x26, "#,##0_);[Red](#,##0)"<br> 
    •  0x27, "#,##0.00_);(#,##0.00)"<br> 
    •  0x28, "#,##0.00_);[Red](#,##0.00)"<br> 
    •  0x29, "_(* #,##0_);_(* (#,##0);_(* \"-\"_);_(@_)"<br> 
    •  0x2a, "_($* #,##0_);_($* (#,##0);_($* \"-\"_);_(@_)"<br> 
    •  0x2b, "_(* #,##0.00_);_(* (#,##0.00);_(* \"-\"??_);_(@_)"<br> 
    •  0x2c, "_($* #,##0.00_);_($* (#,##0.00);_($* \"-\"??_);_(@_)"<br> 
    •  0x2d, "mm:ss"<br> 
    •  0x2e, "[h]:mm:ss"<br> 
    •  0x2f, "mm:ss.0"<br> 
    •  0x30, "##0.0E+0"<br> 
    •  0x31, "@" - This is text format.<br> 
    •  0x31 "text" - Alias for "@"<br> 

    */

    xuanbg
        1
    xuanbg  
       Oct 12, 2021
    poi 读取时间日期的话,需要判断一下列的类型。直接读基本上不可能正确读取日期时间
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