Excel讀取資料

package filePackage;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

public class Demo4_FileInputStream {
	
	public static void main(String[] args) throws BiffException, IOException {
		Workbook workbook=Workbook.getWorkbook(new File("E:/Project/test/j.xls"));
		BufferedWriter writer = new BufferedWriter(new FileWriter(new File("c:\\d.doc")));
		Sheet sheet=workbook.getSheet(2);
		
		int rows = sheet.getRows();
        int columns = sheet.getColumns();
        System.out.println(rows + "\t" + columns);
        
        for(int i=0;i<sheet.getRows();i++){
	     	for(int j=0;j<sheet.getColumns()-10;j++){
	             Cell cell=sheet.getCell(j,i);
	             writer.write(cell.getContents()+"\t");
	         }
	    	 writer.write("\n");
        }
        workbook.close();
        writer.close();
	}
}

 

excel中新增資料

從txt檔案和Excel中讀取資料，再將資料新增到Excel中。

package filePackage;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.Reader;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;



public class Demo6_FileInputStream {
	
	public static void main(String[] args) throws Exception {
		String path = "C:\\Users\\Administrator\\Desktop\\Test\\jlFile.txt";
		File f = new File(path);
		BufferedReader fis = new BufferedReader(new FileReader(f));
		 
		Workbook workbook=Workbook.getWorkbook(new File("E:/project/test/j.xls"));
		
		File file = new File("E:/project//test/j.xls");
		WritableWorkbook wb = Workbook.createWorkbook(file);
		WritableSheet sheet = wb.getSheet(0);
		WritableSheet sheet1 = wb.getSheet(1);
		
		String str = null;
		String[] str1 = new String[1024];
		int num = 0;
		Label lable1 = null;
		Label lable2 = null;
		Label lable3 = null;
		Label lable4 = null;
		
		int n =0;
	
		Sheet sheet3=workbook.getSheet(0);
		for (int k =0; k < 16; k++) {
			int i = 1;
			Cell cell=sheet3.getCell(k,2);
			String strc= cell.getContents();
			
			while ((str=fis.readLine()) !=null) {
				if(k == 1 || k == 2 || k == 5) {
					str1[n++] = str;
					lable1 = new Label(1,i,str);
					lable2 = new Label(2,i,str);
					lable3 = new Label(5,i,str);
					sheet.addCell(lable1);
					sheet.addCell(lable2);
					sheet.addCell(lable3);
				} else {
					lable4 = new Label(k,i,strc);
					sheet.addCell(lable4);
				}
				i++;
			}
		}
		
		
		Sheet sheet4=workbook.getSheet(1);
		
		for (int k =0; k < 7; k++) {
			Cell cell=sheet4.getCell(k,2);
			String strc= cell.getContents();
			for (int j = 0; j < n; j++) {
				if(k == 1){
					lable4 = new Label(1,j+1,str1[j]);
					sheet1.addCell(lable4);
				} else {
					lable4 = new Label(k,j+1,str1[j]);
					sheet1.addCell(lable4);
				}
			}
		}
		
		
		wb.write();
		workbook.close();
		wb.close();
		fis.close();
	}
}