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public static void main(String[] args) throws SQLException{
Connection con = null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con = DriverManager.getConnection( "jdbc:odbc:ExcelJDBC" );
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("Select * from [Sheet1$]" );
ResultSetMetaData rsmd = rs.getMetaData();
int numberOfColumns = rsmd.getColumnCount();
System.out.println ("表格列数"+numberOfColumns );
System.out.println( rsmd.getColumnName(1)+ "," +
rsmd.getColumnName(2) + "," + rsmd.getColumnName(3));
while (rs.next()) {
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