Como armazenar/recuperar documentos XLS para/do SQL Server
O exemplo abaixo mostra como armazenar e ler dados xls do SQL server.
import java.sql.*;
import java.io.*;
public class saveXLSToDb {
public static void main(String[] args) {
DB db = new DB();
Connection conn=db.dbConnect(
"jdbc:jtds:sqlserver://localhost:1433/smpp","sa","");
db.insertXLS(conn,"d://servlet//jdbc//temp.xls");
db.getXLSData(conn);
}
}
class DB {
public DB() {}
public Connection dbConnect(String db_connect_string,
String db_userid, String db_password) {
try {
Class.forName("net.sourceforge.jtds.jdbc.Driver");
Connection conn = DriverManager.getConnection(
db_connect_string, db_userid, db_password);
System.out.println("conectado");
return conn;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public void insertXLS(Connection conn,String filename) {
int len;
String query;
PreparedStatement pstmt;
try {
File file = new File(filename);
FileInputStream fis = new FileInputStream(file);
len = (int)file.length();
query = ("insert into TableImage VALUES(?,?,?)");
pstmt = conn.prepareStatement(query);
pstmt.setString(1,file.getName());
pstmt.setInt(2, len);
pstmt.setBinaryStream(3, fis, len);
pstmt.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
}
}
public void getXLSData(Connection conn) {
byte[] fileBytes;
String query;
try {
query =
"select data from tableimage where filename like '%.xls%'";
Statement state = conn.createStatement();
ResultSet rs = state.executeQuery(query);
if (rs.next()) {
fileBytes = rs.getBytes(1);
OutputStream targetFile= new FileOutputStream(
"d://servlet//jdbc//newtemp.xls");
targetFile.write(fileBytes);
targetFile.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
};
