Apache POI （四） 遍歷Excel 和文字提取

一、
Excel遍歷

直接上程式碼:

package com.poi.hello;

import java.io.FileInputStream;
import java.io.InputStream;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;

/**
 * 作者:[<span style="color: rgb(68, 68, 68); font-size: 14px;  line-height: 24px;"><strong>Only丶愛你</strong></span>]
 * 功能:[ 遍歷工作簿的行和列 輸出值 ]
 */
public class Demo6 {
	public static void main(String[] args) throws Exception {
		
		InputStream inputStream = new FileInputStream("D:\\Child.xls");
		//POIFSFileSystem fs = new POIFSFileSystem(inputStream);
		HSSFWorkbook wb = new HSSFWorkbook(inputStream);
		//獲取第一個Sheet頁
		 HSSFSheet sheet = wb.getSheetAt(0);
		//遍歷行row
		for (int i = 0; i <= sheet.getLastRowNum(); i++) {
			Row row = sheet.getRow(i);
			for (int cellNum = 0; cellNum <  row.getLastCellNum(); cellNum++) {
				Cell cell = row.getCell(cellNum);
				System.out.print(getValue(cell)+"\t");
			}
			System.out.println();
		}
		
	}
	
<span style="white-space:pre">	</span>//呼叫這個方法 判斷 當前的單元格的值的型別
	private static String getValue(Cell cell){
		if(cell.getCellType()==HSSFCell.CELL_TYPE_BOOLEAN){
			return String.valueOf(cell.getBooleanCellValue());
		}else if(cell.getCellType()==HSSFCell.CELL_TYPE_NUMERIC){
			return String.valueOf(cell.getNumericCellValue());
		}else{
			
			return String.valueOf(cell.getStringCellValue());
		}
	}
}
 

二、
Excel文字提取

public class Demo7 {
	public static void main(String[] args) throws Exception {
		
		InputStream inputStream = new FileInputStream("D:\\Child.xls");
		//開啟工作簿
		HSSFWorkbook wb = new HSSFWorkbook(inputStream);
		//建立Excel提取器（這個只是POIAPI提供的一個文字提取器）
		ExcelExtractor extractor = new ExcelExtractor(wb);
		//是否輸出Sheet頁的名稱
		extractor.setIncludeSheetNames(false); 
		//輸出提取文字
		System.out.println(extractor.getText());
	}
}