读取excel数据

package cn.edu.cust.demo;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import org.apache.poi.xssf.usermodel.XSSFCell;

import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import jxl.*;

import jxl.write.Label;

import jxl.write.WritableSheet;

import jxl.write.WritableWorkbook;

import jxl.write.WriteException;

public class ReadExcel {

public static String replaceBlank(String str) {

String dest = "";

if (str!=null) {

Pattern p = Pattern.compile("\\s*|\t|\r|\n");

Matcher m = p.matcher(str);

dest = m.replaceAll("");

}

return dest;

}

public static void writeExcelPOI(int x,int y,String s) {

try {

String fileName = "E://hello.xls"; //修改e盘的in.xls文件

XSSFWorkbook xwb = new XSSFWorkbook(new FileInputStream(fileName));

XSSFSheet xSheet = xwb.getSheetAt(0); //获取excel表的第一个sheet

XSSFCell xCell=xSheet.getRow(x).getCell(y); //获取单元格对象，这块不能向上边那两句代码那么写，不能用createXXX，用的话会只把第一列的数据改掉

xCell.setCellValue(s);//修改数据，看数据是否和字段集合中的数据匹配，不匹配使用元数据

// System.out.println(fields.get(fillSplit[0].trim()));

FileOutputStream out = new FileOutputStream(fileName);

xwb.write(out);

out.close();

} catch (Exception e) {

e.printStackTrace();

}

}

public static void main(String[] args) {

int i;

Sheet sheet;

Workbook book;

Cell cell1,cell2,cell3,cell4,cell5,cell6,cell7;

try {

//hello.xls为要读取的excel文件名

book= Workbook.getWorkbook(new File("E://in.xls"));

//获得第一个工作表对象(ecxel中sheet的编号从0开始,0,1,2,3,....)

sheet=book.getSheet(0);

//获取左上角的单元格

cell1=sheet.getCell(0,0);

// System.out.println("标题："+cell1.getContents());

String content[]=new String[2000];

String content1[]=new String[2000];

i=1;

while(true)

{

try

{

//获取每一行的单元格

// cell1=sheet.getCell(0,i);//(列，行)

// cell2=sheet.getCell(1,i);

// cell3=sheet.getCell(2,i);

// cell4=sheet.getCell(3,i);

cell5=sheet.getCell(4,i);

// cell6=sheet.getCell(5,i);

cell7=sheet.getCell(7,i);

if("".equals(cell1.getContents())==true) //如果读取的数据为空

break;

System.out.println(cell5.getContents()+"\t");

String words=cell5.getContents();

String words1=cell7.getContents();

String change_words= replaceBlank(words);

String change_words1= replaceBlank(words1);

System.out.println(change_words);

content[i]=change_words;

content1[i]=change_words1;

if(i>=1999)

{

break;

}

}

catch(Exception e)

{

e.printStackTrace();

}

i++;

}

//文件D://JEtest//read.xls 不存在，若存在数据将会丢失

File file = new File("E://1//hello.xls");

//创建一个新的可写工作簿

// WritableWorkbook wb = Workbook.createWorkbook(file);

// WritableSheet sheet1 = wb.createSheet("第二页", 1);

// sheet1.addCell(new Label(0,i-1,change_words));

//文件D://JEtest//read.xls 不存在，若存在数据将会丢失

//创建一个新的可写工作簿

WritableWorkbook wb = Workbook.createWorkbook(file);

TWrite.write(wb,content);

// 写入Exel工作表

wb.write();

// 关闭Excel工作薄对象

wb.close();

book.close();

}

catch(Exception e) { }

}

}

excel操作.zip

写入excel数据

package cn.edu.cust.demo;

import java.io.File;

import java.io.IOException;

import jxl.Workbook;

import jxl.read.biff.BiffException;

import jxl.write.Label;

import jxl.write.Number;

import jxl.write.Boolean;

import jxl.write.DateFormat;

import jxl.write.DateTime;

import jxl.write.NumberFormat;

import jxl.write.WritableCellFormat;

import jxl.write.WritableFont;

import jxl.write.WritableSheet;

import jxl.write.WritableWorkbook;

import jxl.write.WriteException;

/**

*

* @author

*/

public class TWrite {

public static void write(WritableWorkbook wb,String str[]) throws WriteException {

WritableSheet wSheet = wb.createSheet("sheet1", 0);

for(int i=0;i