在Java - JXL或Apache POI中阅读Excel表格的API越好 [英] What is the better API to Reading Excel sheets in java - JXL or Apache POI

问题描述

2个API中的哪一个更容易读/写/编辑excel表？
这些API不支持CSV扩展？

使用JXL for file.xls和file.xlsx，我会收到一个例外：

  jxl.read.biff.BiffException：无法在jxl.read.biff.CompoundFile中识别OLE流
 。< init>（CompoundFile.java:116）
在jxl.read.biff.File。< init>（File.java:127）
在jxl.Workbook.getWorkbook（Workbook.java ：268）
在core.ReadXLSheet.contentReading（ReadXLSheet.java:46）
在core.ReadXLSheet.init（ReadXLSheet.java:22）
在core.ReadXLSheet.main（ReadXLSheet。 java：72）
  

两种.xls和.xlsx扩展名。
我使用的Java版本是：JDK1.6

解决方案

我使用了 JXL （现在是JExcel）和 Apache POI 。起初我使用了JXL，但现在我使用Apache POI。

首先，这两个API都有相同的最终功能：

• 两个都是免费的


• 单元格样式：对齐方式，背景（颜色和图案），边框
  （类型和颜色），字体支持（字体名称，颜色，大小，粗体，
  斜体，删除，下划线）


• 公式


• 超链接
• 
  
• 合并的单元格区域


• 行和列的大小


• 数据格式：数字和日期


• 单元格内的文本换行


• 冻结窗格


• 页眉/页脚支持


• 阅读/写现有和新的电子表格


• 两者都尽可能保持现有对象在电子表格中的完整读取。

但是，有很多区别：

• 也许最重要的区别是Java JXL不支持Excel 2007+.xls x格式;它只支持旧的BIFF（二进制）.xls格式。 Apache POI支持通用的设计。另外，JXL API的Java部分最近更新于2009年（3年，4个月前，因为我写这个），虽然它看起来就像有一个C＃API。 Apache POI被积极维护。


• JXL不支持条件格式化，但是Apache POI虽然不是很重要，但可以通过自己的代码有条件地格式化单元格。 >
  
• JXL不支持 文本格式，即文本字符串中不同的格式化; Apache POI确实支持它。


• JXL仅支持某些文本旋转：水平/垂直，+/- 45度和堆叠; Apache POI支持任意整数的加权积分。


• JXL不支持绘图形状; Apache POI。


• JXL支持大多数页面设置设置，如横向/纵向，边距，纸张尺寸和缩放。 Apache POI支持所有这些加重复行和列。


• JXL不支持拆分窗格; Apache POI。


• JXL不支持图表创建或操作; Apache POI中尚未提供支持，但是API正在慢慢开始。


• Apache POI具有比JXL更多的文档和示例。

此外，POI不仅包含主要的usermodelAPI，而且还包含一个基于事件的API，如果您想要的是读取电子表格内容总结来说，由于更好的文档，更多功能，主动开发和Excel 2007+格式支持，我使用Apache POI。

Which of the 2 APIs is simpler to read/write/edit excel sheets ? Do these APIs not support CSV extensions ?

Using JXL for file.xls and file.xlsx, I get an exception like:

jxl.read.biff.BiffException: Unable to recognize OLE stream
    at jxl.read.biff.CompoundFile.<init>(CompoundFile.java:116)
    at jxl.read.biff.File.<init>(File.java:127)
    at jxl.Workbook.getWorkbook(Workbook.java:268)
    at core.ReadXLSheet.contentReading(ReadXLSheet.java:46)
    at core.ReadXLSheet.init(ReadXLSheet.java:22)
    at core.ReadXLSheet.main(ReadXLSheet.java:72)

Both for .xls and .xlsx extensions. Java Version I am using is : JDK1.6

解决方案

I have used both JXL (now "JExcel") and Apache POI. At first I used JXL, but now I use Apache POI.

First, here are the things where both APIs have the same end functionality:

• Both are free
• Cell styling: alignment, backgrounds (colors and patterns), borders (types and colors), font support (font names, colors, size, bold, italic, strikeout, underline)
• Formulas
• Hyperlinks
• Merged cell regions
• Size of rows and columns
• Data formatting: Numbers and Dates
• Text wrapping within cells
• Freeze Panes
• Header/Footer support
• Read/Write existing and new spreadsheets
• Both attempt to keep existing objects in spreadsheets they read in intact as far as possible.

However, there are many differences:

• Perhaps the most significant difference is that Java JXL does not support the Excel 2007+ ".xlsx" format; it only supports the old BIFF (binary) ".xls" format. Apache POI supports both with a common design.
• Additionally, the Java portion of the JXL API was last updated in 2009 (3 years, 4 months ago as I write this), although it looks like there is a C# API. Apache POI is actively maintained.
• JXL doesn't support Conditional Formatting, Apache POI does, although this is not that significant, because you can conditionally format cells with your own code.
• JXL doesn't support rich text formatting, i.e. different formatting within a text string; Apache POI does support it.
• JXL only supports certain text rotations: horizontal/vertical, +/- 45 degrees, and stacked; Apache POI supports any integer number of degrees plus stacked.
• JXL doesn't support drawing shapes; Apache POI does.
• JXL supports most Page Setup settings such as Landscape/Portrait, Margins, Paper size, and Zoom. Apache POI supports all of that plus Repeating Rows and Columns.
• JXL doesn't support Split Panes; Apache POI does.
• JXL doesn't support Chart creation or manipulation; that support isn't there yet in Apache POI, but an API is slowly starting to form.
• Apache POI has a more extensive set of documentation and examples available than JXL.

Additionally, POI contains not just the main "usermodel" API, but also an event-based API if all you want to do is read the spreadsheet content.

In conclusion, because of the better documentation, more features, active development, and Excel 2007+ format support, I use Apache POI.

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