mysql,sqlserver,oracle三种数据库的大对象存取(2)

          out.flush();
        }
        out.close();
        in.close();
        rs.close();
        ps.close();
      }
    }
    catch (Exception ex) {
      ex.printStackTrace(System.out);
    }
    finally {
      try {conn.close();}
      catch (Exception ex) { }
    }
  }
}
 
 
sqlserver 大对象存取没有什么多说的,只要是image类型就行了,注意这是column类型,有人以为它只能存
图象.image是文件镜象的意思.
import java.sql.*;
import java.io.*;
public class DBTest {
 
 
  static String driver = "com.microsoft.jdbc.sqlserver.SQLServerDriver";
  static String url = "jdbc:microsoft:sqlserver://192.168.0.202:9999999999;DatabaseName=dddd";
  static String user = "sa";
  static String passwd = "ps";
  public static void main(String[] args) throws Exception {
    Connection conn = null;
    try {
      Class.forName(driver);
      conn = DriverManager.getConnection(url,user,passwd);
      int op = 0;
      //插入
      if (op == 0) {
        PreparedStatement ps = conn.prepareStatement("insert into tb_file values (?,?)");
        ps.setString(1, "aaa.exe");
        InputStream in = new FileInputStream("d:/aaa.exe");
        ps.setBinaryStream(2,in,in.available());
        ps.executeUpdate();
        ps.close();
      }
      else {
        //取出
        PreparedStatement ps = conn.prepareStatement("select * from  tb_file where filename = ?");
        ps.setString(1, "aaa.exe");
        ResultSet rs = ps.executeQuery();
        rs.next();
        InputStream in = rs.getBinaryStream("filecontent");
        System.out.println(in.available());