PreparedStatement: setCharacterStream(int parameterIndex, Reader reader, int length) : PreparedStatement « java.sql « Java by API

1. Java by API
2. java.sql
3. PreparedStatement

PreparedStatement: setCharacterStream(int parameterIndex, Reader reader, int length)

 


import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.Reader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;

public class Main {
  public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement stmt = conn.createStatement();

    stmt.executeUpdate("create table survey (id int, name BINARY);");

    String sql = "INSERT INTO survey (name) VALUES(?)";
    PreparedStatement pstmt = conn.prepareStatement(sql);

    
    File file = new File("yourFileName.txt");
    long fileLength = file.length();
    Reader fileReader = (Reader) new BufferedReader(new FileReader(file));

    pstmt.setCharacterStream(1, fileReader, (int)fileLength);

    int rowCount = pstmt.executeUpdate();

    ResultSet rs = stmt.executeQuery("SELECT * FROM survey");
    while (rs.next()) {
      System.out.println(rs.getBytes(2));
    }

    rs.close();
    stmt.close();
    conn.close();
  }

  private static Connection getConnection() throws Exception {
    Class.forName("org.hsqldb.jdbcDriver");
    String url = "jdbc:hsqldb:mem:data/tutorial";

    return DriverManager.getConnection(url, "sa", "");
  }
}

   
  

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