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：
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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。
将MySql中的数据库导出到文件中 备份
import java.io.*;
import java.lang.*;
public class BeiFen {
public static void main(String[] args) {
// 数据库导出
String user = "root"; // 数据库帐号
String password = "root"; // 登陆密码
String database = "test"; // 需要备份的数据库名
String filepath = "e:\\test.sql"; // 备份的路径地址
String stmt1 = "mysqldump " + database + " -u " + user + " -p"
+ password + " --result-file=" + filepath;
/*
* String mysql="mysqldump test -u root -proot
* --result-file=d:\\test.sql";
*/
try {
Runtime.getRuntime().exec(stmt1);
System.out.println("数据已导出到文件" + filepath + "中");
}
catch (IOException e) {
e.printStackTrace();
}
}
}
将数据从磁盘上的文本文件还原到MySql中的数据库
import java.io.*;
import java.lang.*;
/*
* 还原MySql数据库
* */
public class Recover {
public static void main(String[] args) {
String filepath = "d:\\test.sql"; // 备份的路径地址
//新建数据库test
String stmt1 = "mysqladmin -u root -proot create test";
String stmt2 = "mysql -u root -proot test " + filepath;
String[] cmd = { "cmd", "/c", stmt2 };
try {
Runtime.getRuntime().exec(stmt1);
Runtime.getRuntime().exec(cmd);
System.out.println("数据已从 " + filepath + " 导入到数据库中");
} catch (IOException e) {
e.printStackTrace();
}
}
}
class.forname("oracle.jdbc.driver.OracleDriver");//加载数据库驱动
String url="jdbc:oracle:thin:@localhost:1521:db_name";
String sql="CREATE TABLE table(filed1 varchar2(2),filed2 varchar2(2))";
Connection conn=DriverManager.getConnection(url,"scott","tiger");//建立数据库连接
if(!conn.isClose()){
Statement stmt = conn.createStatement();
stmt.executeUPDATE(sql); //建立一个表
}
