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返回目录:excel表格制作
java 读excel 还是比较方便简单的,原理就是,先用java 读取excel,然后,一行行的写入数据库,字段的话,你自己程序里面写就行了,给你个例子:
从Excel读取数据,生成新的Excel,以及修改Excel
package common.util;
import jxl.*;
import jxl.format.UnderlineStyle;
import jxl.write.*;
import jxl.write.Number;
import jxl.write.Boolean;
import java.io.*;
/**
* Created by IntelliJ IDEA.
* User: xl
* Date: 2005-7-17
* Time: 9:33:22
* To change this template use File | Settings | File Templates.
*/
public class ExcelHandle
{
public ExcelHandle()
{
}
/**
* 读取Excel
*
* @param filePath
*/
public static 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,1为名字,而为下标,从0开始
Sheet st = rwb.getSheet("original");
Cell c00 = st.getCell(0,0);
//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();
}
}
/**
* 输出Excel
*
* @param os
*/
public static void writeExcel(OutputStream os)
{
try
{
/**
* 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e69da5e6ba907a686964616f366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:\\2.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();
}
}
/**
* 拷贝后,进行修改,其中file1为被copy对象,file2为修改后创建的对象
* 尽单元格原有的格式化修饰是不能去掉的,我们还是可以将新的单元格修饰加上去,
* 以使单元格的内容以不同的形式表现
* @param file1
* @param file2
*/
public static 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(0,0);
//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
public static void main(String[] args)
{
try
{
//读Excel
ExcelHandle.readExcel("f:/testRead.xls");
//输出Excel
File fileWrite = new File("f:/testWrite.xls");
fileWrite.createNewFile();
OutputStream os = new FileOutputStream(fileWrite);
ExcelHandle.writeExcel(os);
//修改Excel
ExcelHandle.modifyExcel(new file(""),new File(""));
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
2.在jsp中做相关测试,创建一个writeExcel.jsp
<%
response.reset();//清除Buffer
response.setContentType("application/vnd.ms-excel");
File fileWrite = new File("f:/testWrite.xls");
fileWrite.createNewFile();
new FileOutputStream(fileWrite);
ExcelHandle.writeExcel(new FileOutputStream(fileWrite));
%>
在IE中浏览writeExcel.jsp就可以动态生成Excel文档了,其中response.setContentType("application/vnd.ms- excel");语句必须要,才能确保不乱码,在jsp中输入<%@page contentType="application/vnd.ms- excel;charset=GBK"%>不行。
下列zhidao方法可将SQL数据导出的Excel中:
1、导入到一个存在的Excel文件,且表头已经设置:
insert into OPENROWSET('MICROSOFT.ACE.OLEDB.12.0','Excel 12.0;HDR=YES;DATABASE=c:\book1.xlsx',sheet1$) select * from 表。
2、导入为新文件:
EXEC master..xp_cmdshell 'bcp 数据库名专.dbo.表名 out "c:\book1.xls" /c -/S"服务器属名" /U"用户名" -P"密码"'。
或
EXEC master..xp_cmdshell 'bcp "SELECT * FROM 数据库名.dbo.表名 ORDER BY 某字段" queryout "c:\book1.xls" /c -/S"服务器名" /U"用户名" -P"密码"'。
先将数据绑定到一个控件中,例如gridview:
放一个按钮,代码如下:
protected void ibtnExcel_Click(object sender, ImageClickEventArgs e)
{
string FileName = "标题 " + DateTime.Now + ".xls";
Response.Charset = "GB2312";
Response.ContentEncoding = Encoding.UTF8;//System.Text
//如果设置GB2312会出现乱码
Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.AddHeader("content-type", "application / ms - excel");//设置输出文件的类型
//或Response.ContentType = FileType;
//定义一个输出流e5a48de588b6e799bee5baa6e79fa5e98193338
StringWriter tw = new StringWriter();//System.IO
HtmlTextWriter hw = new HtmlTextWriter(tw);
gridview1.RenderControl(hw);//gridview绑定
Response.Write(tw.ToString());
Response.End();
}
public override void VerifyRenderingInServerForm(Control control)
{
//必须写这个;
}
下列方法可将SQL数据百导出的Excel中:
1、导入到一个存在的Excel文件,且表度头已经设置:问
insert into OPENROWSET('MICROSOFT.ACE.OLEDB.12.0','Excel 12.0;HDR=YES;DATABASE=c:\book1.xlsx',sheet1$) select * from 表。
2、导入为新文件:
EXEC master..xp_cmdshell 'bcp 数据答库名.dbo.表名 out "c:\book1.xls" /c -/S"服务器内名" /U"用户名" -P"密码容"'。
或
EXEC master..xp_cmdshell 'bcp "SELECT * FROM 数据库名.dbo.表名 ORDER BY 某字段" queryout "c:\book1.xls" /c -/S"服务器名" /U"用户名" -P"密码"'。