Demo Prepared Statement Set BinaryStream : Stream Data « Database SQL JDBC « Java





Demo Prepared Statement Set BinaryStream

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

public class DemoPreparedStatementSetBinaryStream {
  public static Connection getConnection() throws Exception {
    String driver = "oracle.jdbc.driver.OracleDriver";
    String url = "jdbc:oracle:thin:@localhost:1521:databaseName";
    String username = "name";
    String password = "password";
    Class.forName(driver);
    Connection conn = DriverManager.getConnection(url, username, password);
    return conn;
  }

  public static void main(String[] args)throws Exception {
    String smallFileName = "smallFileName.dat";
    String largeFileName = "largeFileName.dat";
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
      conn = getConnection();
      File smallFile = new File(smallFileName);
      int smallFileLength = (int) smallFile.length();
      InputStream smallStream = (InputStream) new FileInputStream(smallFile);
      File largeFile = new File(largeFileName);
      int largeFileLength = (int) largeFile.length();
      InputStream largeStream = (InputStream) new FileInputStream(largeFile);

      String query = "insert into binary_table(id, raw_column, long_raw_column) values(?, ?, ?)";

      conn.setAutoCommit(false);
      pstmt = conn.prepareStatement(query);
      pstmt.setString(1, "0001");
      pstmt.setBinaryStream(2, smallStream, smallFileLength);
      pstmt.setBinaryStream(3, largeStream, largeFileLength);

      // execute query, and return number of rows created
      int rowCount = pstmt.executeUpdate();
      System.out.println("rowCount=" + rowCount);
      conn.commit();
    } finally {
      pstmt.close();
      conn.close();
    }
  }
}
           
       










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