t5750 / poi-repositories

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

Demos using Apache POI

Docs

• https://poix.readthedocs.io

Getting Started

Step 1: Download

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

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

• Java 8
• Spring Framework 5.x
• Spring Boot 2.x
• Derby 10.x
• Hibernate ORM 5.x
• POI 5.x
• Bootstrap 4.x
• Docker 19.x

Classes

1. 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.

2. 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.

3. 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.

4. FormulaEvaluator

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

Write an excel file

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

Read an excel file

1. Create workbook instance from excel sheet
2. Get to the desired sheet
3. Increment row number
4. iterate over all cells in a row
5. 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

• Java POI导出EXCEL经典实现 Java导出Excel弹出下载框
• Java POI读取Office excel (2003,2007)及相关jar包
• HSSF and XSSF Examples
• Apache POI – Read and Write Excel File in Java

License

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

poi-repositories's Issues

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 

`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
}

excel poi 文件中文名称乱码

excel poi 文件中文名称乱码

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

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.

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]

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