Apache POI 学习笔记 - Excel

Posted 2022-06-11 笑虾

Apache POI 学习笔记 - Excel

• 简介
• pom.xml
• 测试
• • Iterator\\

简介

pom.xml

<!--03 的 .xls-->
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>5.2.2</version>
</dependency>
<!--07 的 .xlsx-->
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>5.2.2</version>
</dependency>

测试

Iterator<Row> 遍历

class POIExcelTest 

    private String path = "E:\\\\测试数据01.xlsx";

    @Test
    public void createWorkbook() throws Exception 
        System.out.println(path);
        Workbook sheets = WorkbookFactory.create(new FileInputStream(path));
        Sheet sheet = sheets.getSheetAt(1);
        Iterator<Row> rowIterator = sheet.rowIterator();
        while(rowIterator.hasNext()) 
            Row row = rowIterator.next();
            Iterator<Cell> cellIterator = row.cellIterator();
            while (cellIterator.hasNext()) 
                Cell cell = cellIterator.next();
                CellType cellType = cell.getCellType();
                if(cellType == CellType.STRING) 
                    System.out.print(cell.getStringCellValue() + "\\t");
                 else if(cellType == CellType.NUMERIC) 
                    System.out.print(cell.getNumericCellValue() + "\\t");
                
            
            System.out.println();
        
    

参考资料

文档

Apache POI - Javadocs
Apache POI - Component Overview
Apache POI - Component Overview：HSSF、XSSF快速指南

教程

• 英文教程
  JavatPoint：Apache POI Tutorial
  SimpleSolution：Java Apache POI Tutorial
  stackoverflow：Apache POI Excel How To …
• 中文教程
  cnblogs - 技术江湖 - Apache POI使用详解
  CSDN - 技术宅星云 - Apache POI 中文使用指南
• 视频教程
  B站 -【狂神说Java】POI及EasyExcel一小时搞定通俗易懂