POI简介
Apache POI是纯Java代码，用于支持对Microsoft Office文档的读写。POI为“Poor Obfuscation Implementation”的首字母缩写，意为“可怜的模糊实现”。
POI 分别支持各种符合Office Open XML（OOXML）标准和微软的OLE 2复合文档格式（OLE2）的读写操作。OLE2是早期MS的定义的格式(如.xls,doc,ppt)。OOXML是国际标准(如.xlsx,docx,pptx)。因此会有两个版本类实现来支持。下面是各MS文档对应的api组件包
| 文档 | 组件包 | 备注 |
|---|---|---|
| Excel | HSSF+XSSF+SXSSF | H:Horrible(讨厌的),X:(XML),SSF: SpreadSheet Format(电子表格) |
| PowerPoint | HSLF+XSLF | |
| Word | HWPF+XWPF | |
| Outlook | HSMF | |
| Visio | HDGF+XDGF | |
| Publisher | HPBF |
组件包
| Component | Application type | Maven artifactId | Notes |
|---|---|---|---|
| POIFS | OLE2 Filesystem | poi | Required to work with OLE2 / POIFS based files |
| HPSF | OLE2 Property Sets | poi | |
| HSSF | Excel XLS | poi | For HSSF only, if common SS is needed see below |
| HSLF | PowerPoint PPT | poi-scratchpad | |
| HWPF | Word DOC | poi-scratchpad | |
| HDGF | Visio VSD | poi-scratchpad | |
| HPBF | Publisher PUB | poi-scratchpad | |
| HSMF | Outlook MSG | poi-scratchpad | |
| DDF | Escher common drawings | poi | |
| HWMF | WMF drawings | poi-scratchpad | |
| OpenXML4J | OOXML | poi-ooxml plus either poi-ooxml-schemas or ooxml-schemas and ooxml-security | See notes below for differences between these options |
| XSSF | Excel XLSX | poi-ooxml | |
| XSLF | PowerPoint PPTX | poi-ooxml | |
| XWPF | Word DOCX | poi-ooxml | |
| XDGF | Visio VSDX | poi-ooxml | |
| Common SL | PowerPoint PPT and PPTX | poi-scratchpad and poi-ooxml | SL code is in the core POI jar, but implementations are in poi-scratchpad and poi-ooxml. |
| Common SS | Excel XLS and XLSX | poi-ooxml | WorkbookFactory and friends all require poi-ooxml, not just core poi |
组件依赖
| Maven artifactId | Prerequisites | JAR |
|---|---|---|
| poi | commons-logging, commons-codec, commons-collections (since POI 3.15 beta 3), commons-math (since POI 4.0.0), log4j | poi-version-yyyymmdd.jar |
| poi-scratchpad | poi | poi-scratchpad-version-yyyymmdd.jar |
| poi-ooxml | poi, poi-ooxml-schemas | poi-ooxml-version-yyyymmdd.jar |
| poi-ooxml-schemas | xmlbeans | poi-ooxml-schemas-version-yyyymmdd.jar |
| poi-examples | poi, poi-scratchpad, poi-ooxml | poi-examples-version-yyyymmdd.jar |
| ooxml-schemas | xmlbeans | ooxml-schemas-1.3.jar |
| ooxml-security | xmlbeans For signing: bcpkix-jdk15on, bcprov-jdk15on, xmlsec, slf4j-api | ooxml-security-1.1.jar |
Excel组件包
(usermodel 需要较多的内存与CPU,若是手机端可能会因有内存不足异常）