如何打开一个Excel文件？

[xiaoxion]

我要在jsp读一个excel文件，请问用jsp如何打开一个Excel文件

[lucong]

import java.io.*;
import java.sql.*;


public class ExcelReadTest{


public static void main(String[] args){
Connection connection = null;


try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection( "jdbc:odbc:XLS" );
Statement st = con.createStatement();
ResultSet rs = st.executeQuery( "Select * from [Sheet1$]" );

ResultSetMetaData rsmd = rs.getMetaData();
int numberOfColumns = rsmd.getColumnCount();

System.out.println ( "No of cols "+numberOfColumns );


while (rs.next()) {


for (int i = 1; i <= numberOfColumns; i++) {
if (i > 1) System.out.print(", ");
String columnValue = rs.getString(i
);
System.out.print(columnValue);
}
System.out.println("");
}

st.close();
con.close();


} catch(Exception ex) {
System.err.print("Exception: ");
System.err.println(ex.getMessage());
}
}
}

[lucong]

上面的例子中要保证服务器是安装ＥＸＣＥＬ的ＯＤＢＣ驱动程序，并且建好相应的ＯＤＢＣ　ＤＳＮ。

另一类办法应该是通过ＣＯＭ接口来实现，不过我没有用过。

[yangjunsong]

public void ReadExcel()
{
Connection c = null;
Statement stmnt = null;
try
{
Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" );
c = DriverManager.getConnection( "jdbc:odbc:excel", "", "" );
stmnt = c.createStatement();
String query = "select project,rowno,start,end from [qas$];";
ResultSet rs = stmnt.executeQuery( query );

System.out.println( "the row list:" );
while( rs.next() )
{
System.out.println(rs.getString(1));
System.out.println(rs.getString(2));
System.out.println(rs.getString(3));
System.out.println(rs.getString(4));
}
}
catch( Exception e )
{
System.err.println( e );
}
finally
{
try
{
stmnt.close();
c.close();
}
catch( Exception e )
{
System.err.println( e );
}
}
}