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:sunny: Read and Write Excel file using Java and Apache POI

Home Page: https://poix.readthedocs.io

License: Apache License 2.0

Java 89.49% HTML 10.40% Dockerfile 0.11%

poi java excel derby hibernate bootstrap4 spring spring-boot

poi's Introduction

Apache POI

Docs

https://poix.readthedocs.io

Getting Started

Step 1: Download

git clone https://github.com/T5750/poi.git
cd poi

Step 2: Start Server

docker-compose up -d
# or
mvn clean spring-boot:run

http://localhost:8080/poi

Tests

TestReadExcel, TestReadExcelDemo
TestExportExcel, TestExportExcel2007, TestWriteExcelDemo
TestTemplate, TestExcelReplace
CalendarDemo
TestExcelFormulaDemo, TestExcelStylingDemo, TestAll

Runtime Environment

Classes

HSSF, XSSF and XSSF classes

Apache POI main classes usually start with either HSSF, XSSF or SXSSF.

HSSF – is the POI Project’s pure Java implementation of the Excel ’97(-2007) file format. e.g. HSSFWorkbook, HSSFSheet.
XSSF – is the POI Project’s pure Java implementation of the Excel 2007 OOXML (.xlsx) file format. e.g. XSSFWorkbook, XSSFSheet.
SXSSF (since 3.8-beta3) – is an API-compatible streaming extension of XSSF to be used when very large spreadsheets have to be produced, and heap space is limited. e.g. SXSSFWorkbook, SXSSFSheet. SXSSF achieves its low memory footprint by limiting access to the rows that are within a sliding window, while XSSF gives access to all rows in the document.

Row and Cell

Apart from above classes, Row and Cell are used to interact with a particular row and a particular cell in excel sheet.

Style Classes

A wide range of classes like CellStyle, BuiltinFormats, ComparisonOperator, ConditionalFormattingRule, FontFormatting, IndexedColors, PatternFormatting, SheetConditionalFormatting etc. are used when you have to add formatting in a sheet, mostly based on some rules.

FormulaEvaluator

Another useful class FormulaEvaluator is used to evaluate the formula cells in excel sheet.

Write an excel file

Create a workbook
Create a sheet in workbook
Create a row in sheet
Add cells in sheet
Repeat step 3 and 4 to write more data

Read an excel file

Create workbook instance from excel sheet
Get to the desired sheet
Increment row number
iterate over all cells in a row
repeat step 3 and 4 until all data is read

Getting Help

Having trouble with T5750's POI? We’d like to help!

Ask a question on CSDN.
Report bugs at https://github.com/T5750/poi/issues.

Branch

View POI 3.x branch at https://github.com/T5750/poi/tree/poi3.
View servlet branch at https://github.com/T5750/poi/tree/servlet.

References

License

This project is Open Source software released under the Apache 2.0 license.

poi's People

Contributors

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liujiexin moonoinebri yk4229 lpfei luodengxiong likesetaria shaohailong mubentai zhangdhu matt0614 j2eeweiwei haih windingsummer easonyi lqxion zbcdj2008 286924420 moudaen yangjian0701 luoyd hutuxiansheng lionhjw pojackwang 164918182 fatezy chentaoapple mikeydad mihuu n5xm cangchen8180 rudy2015 peng15653830 kevinngu chaoweimt hongzhipan qopo123 liangjiezhu tonyhau kukobang hjforever qxl1231 isis-github laurelhardy zlp5201 guoxudonggit zcfeel linchangjian json-liu hiekay jimlking yeqing000 lihangtong linmii df-outsider yusniper forever4313 yanqin-java ningpeng67h36 vitojc isaaclot lihec lxiaoyi wind-never-stop x-file havahappy wubl762 beyondwen unirain wilsonlhuang 3087681900 joel-home flaedpfjs hooljun hueizhe bieren maning711 jiangchao89911 1719781450 frankshome mlfantasy littlebox692 jiawap liu449306404 dukedeng xing4200 zhangka001 hansz07 ipfk630 zhangzhipengde winterwanddt admitted public666 taobaby sadlywish zdragon17 fanfengxiang taihuazhang crazyliuying dysing lsp10

poi's Issues

Cell Styles are not updating

Hi, I set a cell alignment to the right & after setting the style to one cell I updated the alignment of a style to the left.
But I'm getting both the cell's alignment left in the output. Could you help me to fix this?

`CellStyle style1 = wb.createCellStyle();
style1.setAlignment(CellStyle.ALIGN_RIGHT);

HSSFCell hssfCell = row1.createCell(j);
String val = "200";
hssfCell.setCellValue(Integer.parseInt(val));
hssfCell.setCellStyle(style1);

HSSFCell hssfCell2 = row1.createCell(j);
val = "300";
hssfCell2.setCellValue(Integer.parseInt(val));
style1.setAlignment(CellStyle.ALIGN_LEFT);
hssfCell2.setCellStyle(style1);`

Thanks in advance

您好，我运行之后发现exportExcel2003不能正常运行

如题。一直转圈，没有异常

`xlookup` doesn't register as a FuncVarPtg

For some reason the parser recognizes lookup but not xlookup, even though xlookup is supposed to be supported.

Code:

System.out.println("Parse \"LOOKUP(E76,$A$13:$A$41,$F$13:$F$41)\"");
for (Ptg ptg : FormulaParser.parse("LOOKUP(E76,$A$13:$A$41,$F$13:$F$41)", ewb, FormulaType.CELL, wb.getSheetIndex(sheet))) {
    System.out.println(ptg);
}
System.out.println("Parse \"XLOOKUP(E76,$A$13:$A$41,$F$13:$F$41)\"");
for (Ptg ptg : FormulaParser.parse("XLOOKUP(E76,$A$13:$A$41,$F$13:$F$41)", ewb, FormulaType.CELL, wb.getSheetIndex(sheet))) {
    System.out.println(ptg);
}

Output:

Parse "LOOKUP(E76,$A$13:$A$41,$F$13:$F$41)"
{   /* RefPtg */
	  "row": 75 /* 0x0000004b */
	, "rowRelative": true
	, "column": 4
	, "colRelative": true
	, "formatReference": "E76"
}
{   /* AreaPtg */
	  "firstRow": 12 /* 0x0000000c */
	, "firstRowRelative": false
	, "firstColumn": 0
	, "firstColRelative": false
	, "lastRow": 40 /* 0x00000028 */
	, "lastRowRelative": false
	, "lastColumn": 0
	, "lastColRelative": false
	, "formatReference": "$A$13:$A$41"
}
{   /* AreaPtg */
	  "firstRow": 12 /* 0x0000000c */
	, "firstRowRelative": false
	, "firstColumn": 5
	, "firstColRelative": false
	, "lastRow": 40 /* 0x00000028 */
	, "lastRowRelative": false
	, "lastColumn": 5
	, "lastColRelative": false
	, "formatReference": "$F$13:$F$41"
}
{   /* FuncVarPtg */
	  "functionIndex": 28 /* 0x001c */
	, "functionName": "LOOKUP"
	, "numberOfOperands": 3
	, "externalFunction": false
	, "defaultOperandClass": 32 /* 0x20 */
	, "cetab": false
}
Parse "XLOOKUP(E76,$A$13:$A$41,$F$13:$F$41)"
{   /* NameXPxg */
	  "externalWorkbookNumber": -1 /* 0xffffffff */
	, "sheetName": null
	, "nameName": "XLOOKUP"
}
{   /* RefPtg */
	  "row": 75 /* 0x0000004b */
	, "rowRelative": true
	, "column": 4
	, "colRelative": true
	, "formatReference": "E76"
}
{   /* AreaPtg */
	  "firstRow": 12 /* 0x0000000c */
	, "firstRowRelative": false
	, "firstColumn": 0
	, "firstColRelative": false
	, "lastRow": 40 /* 0x00000028 */
	, "lastRowRelative": false
	, "lastColumn": 0
	, "lastColRelative": false
	, "formatReference": "$A$13:$A$41"
}
{   /* AreaPtg */
	  "firstRow": 12 /* 0x0000000c */
	, "firstRowRelative": false
	, "firstColumn": 5
	, "firstColRelative": false
	, "lastRow": 40 /* 0x00000028 */
	, "lastRowRelative": false
	, "lastColumn": 5
	, "lastColRelative": false
	, "formatReference": "$F$13:$F$41"
}
{   /* FuncVarPtg */
	  "functionIndex": 255 /* 0x00ff */
	, "functionName": "#external#"
	, "numberOfOperands": 4
	, "externalFunction": true
	, "defaultOperandClass": 32 /* 0x20 */
	, "cetab": false
}

Apache POI is a trademark owned by the Apache Software Foundation

It is generally accepted that you can't infringe on trademarks owned by other legal entities. Could you rename this project?

Apache is also a registered trademark owned by the Apache Software Foundation. I think you need to update this repo and the docs in https://poix.readthedocs.io/en/latest/ to highlight that you have no affiliation whatsoever to Apache POI or the Apache Software Foundation.

I have brought this to the attention of the Apache Software Foundation team in charge of the Apache Software Foundation trademarks.

excel poi 文件中文名称乱码

只引入poi 5.0版本还显示3.17 和5.0.0 都有，方法和实现类都走的3.17 是什么原因呢

org.apache.poi poi 5.0.0 org.apache.poi poi-ooxml 5.0.0 ![image](https://user-images.githubusercontent.com/33973209/138217854-1f3c170d-35b6-4d20-b8b9-4b1a2276c492.png)

报错：Text length was 22 but the last format index was 28

有时会出现这行代码构建的TreeMap<Integer, CTRPrElt> formats = this.getFormatMap(this.st)的最大值与原text的长度不符合，报错：
java.lang.IllegalArgumentException: Text length was 22 but the last format index was 28
org.apache.poi.xssf.usermodel.XSSFRichTextString.buildCTRst(XSSFRichTextString.java:576) ~[poi-ooxml-3.17.jar:3.17]
org.apache.poi.xssf.usermodel.XSSFRichTextString.applyFont(XSSFRichTextString.java:156) ~[poi-ooxml-3.17.jar:3.17]
org.apache.poi.xssf.usermodel.XSSFRichTextString.applyFont(XSSFRichTextString.java:166) ~[poi-ooxml-3.17.jar:3.17]