Java读取Excel文件问题
请教一下Java读取Excel文件中 存在单元格 要读取某个元格 的相关信息 如:内容,所跨列数,行数 等信息。该怎么操作,我知道有个POI包可以用 还有个 jxl吧 就是不知道怎么读取合并单元格的一些信息。。。主要是 跨的列数 行数 以及怎么处理好 这个单元格和其它单元格的对应关系。。。望大家指点一下 谢谢
[解决办法]
传送门在这里
[解决办法]
下载个jxl.jar包(http://download.csdn.net/detail/huangzebiao007/4949884)
import jxl.*;
import jxl.format.UnderlineStyle;
import jxl.write.*;
import jxl.write.Number;
import jxl.write.Boolean;
import java.io.*;
public class ExcelHandle
{
publicExcelHandle()
{
}
publicstatic void readExcel(String filePath)
{
try
{
InputStream is = new FileInputStream(filePath);
Workbook rwb = Workbook.getWorkbook(is);
//Sheet st =rwb.getSheet(0);//这里有两种方法获取sheet表,一是表名,二是下标(从0开始)
Sheet st = rwb.getSheet("Sheet1");
Cell c00 = st.getCell(3,0);//第一个代表列,第二个代表行,下标从0开始
//通用的获取cell值的方式,返回字符串
String strc00 = c00.getContents();
//获得cell具体类型值的方式
if(c00.getType() == CellType.LABEL)
{
LabelCell labelc00 = (LabelCell)c00;
strc00 = labelc00.getString();
}
//输出
System.out.println(strc00);
//关闭
rwb.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
publicstatic void writeExcel(OutputStream os)
{
try
{
WritableWorkbook wwb = Workbook.createWorkbook(os);
//创建Excel工作表 指定名称和位置
WritableSheet ws = wwb.createSheet("Test Sheet 1",0);
/
publicstatic void modifyExcel(File file1,File file2)
{
try
{
Workbook rwb = Workbook.getWorkbook(file1);
WritableWorkbook wwb =Workbook.createWorkbook(file2,rwb);//copy
WritableSheet ws = wwb.getSheet(0);
WritableCell wc = ws.getWritableCell(2,1);
//判断单元格的类型,做出相应的转换
if(wc.getType() == CellType.LABEL)
{
Label label = (Label)wc;
label.setString("The value has been modified");
}
wwb.write();
wwb.close();
rwb.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
//测试
publicstatic void main(String[] args)
{
try
{
//读Excel
ExcelHandle.readExcel("F:\\ceshi.xls");
//输出Excel
// File fileWrite = new File("F:\\ceshi3.xls");
// fileWrite.createNewFile();
// OutputStream os = new FileOutputStream(fileWrite);
// ExcelHandle.writeExcel(os);
//修改Excel
// ExcelHandle.modifyExcel(new File("F:\\ceshi.xls"),newFile("F:\\ceshi2.xls"));
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
/**
* 只能通过API提供的工厂方法来创建Workbook,而不能使用WritableWorkbook的构造函数,
* 因为类WritableWorkbook的构造函数为protected类型
* method(1)直接从目标文件中读取WritableWorkbook wwb = Workbook.createWorkbook(new File(targetfile));
* method(2)如下实例所示 将WritableWorkbook直接写入到输出流
*/
WritableWorkbook wwb = Workbook.createWorkbook(os);
//创建Excel工作表 指定名称和位置
WritableSheet ws = wwb.createSheet("Test Sheet 1",0);
//**************往工作表中添加数据*****************
//1.添加Label对象
Label label = new Label(0,0,"this is a label test");
ws.addCell(label);
//添加带有字型Formatting对象
WritableFont wf = new WritableFont(WritableFont.TIMES,18,WritableFont.BOLD,true);
WritableCellFormat wcf = new WritableCellFormat(wf);
Label labelcf = new Label(1,0,"this is a label test",wcf);
ws.addCell(labelcf);
//添加带有字体颜色的Formatting对象
WritableFont wfc = new WritableFont(WritableFont.ARIAL,10,WritableFont.NO_BOLD,false,
UnderlineStyle.NO_UNDERLINE,jxl.format.Colour.RED);
WritableCellFormat wcfFC = new WritableCellFormat(wfc);
Label labelCF = new Label(1,0,"This is a Label Cell",wcfFC);
ws.addCell(labelCF);
//2.添加Number对象
Number labelN = new Number(0,1,3.1415926);
ws.addCell(labelN);
//添加带有formatting的Number对象
NumberFormat nf = new NumberFormat("#.##");
WritableCellFormat wcfN = new WritableCellFormat(nf);
Number labelNF = new jxl.write.Number(1,1,3.1415926,wcfN);
ws.addCell(labelNF);
//3.添加Boolean对象
Boolean labelB = new jxl.write.Boolean(0,2,false);
ws.addCell(labelB);
//4.添加DateTime对象
jxl.write.DateTime labelDT = new jxl.write.DateTime(0,3,new java.util.Date());
ws.addCell(labelDT);
//添加带有formatting的DateFormat对象
DateFormat df = new DateFormat("dd MM yyyy hh:mm:ss");
WritableCellFormat wcfDF = new WritableCellFormat(df);
DateTime labelDTF = new DateTime(1,3,new java.util.Date(),wcfDF);
ws.addCell(labelDTF);
//添加图片对象,jxl只支持png格式图片
File image = new File("F:\\1.png");
WritableImage wimage = new WritableImage(0,1,2,2,image);
ws.addImage(wimage);
//写入工作表
wwb.write();
wwb.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
[解决办法]
看这个吧,我刚做了一个关于excel的东西,就是参照这个来做的,你说的合并单元格啥的这里都用http://blog.csdn.net/huangchunwju/article/details/8237674