JDBC PreparedStatementの例 – レコードを挿入する
次に、JDBC PreparedStatementを使用してレコードをテーブルに挿入する方法を示します。 insert文を発行するには、次のように `PreparedStatement.executeUpdate（）`メソッドを呼び出します。
String insertTableSQL = "INSERT INTO DBUSER"
+ "(USER__ID, USERNAME, CREATED__BY, CREATED__DATE) VALUES"
+ "(?,?,?,?)";
PreparedStatement preparedStatement = dbConnection.prepareStatement(insertTableSQL);
preparedStatement.setInt(1, 11);
preparedStatement.setString(2, "mkyong");
preparedStatement.setString(3, "system");
preparedStatement.setTimestamp(4, getCurrentTimeStamp());//execute insert SQL stetement
preparedStatement .executeUpdate();
完全な例…
package com.mkyong.jdbc;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
public class JDBCPreparedStatementInsertExample {
private static final String DB__DRIVER = "oracle.jdbc.driver.OracleDriver";
private static final String DB__CONNECTION = "jdbc:oracle:thin:@localhost:1521:MKYONG";
private static final String DB__USER = "user";
private static final String DB__PASSWORD = "password";
public static void main(String[]argv) {
try {
insertRecordIntoTable();
} catch (SQLException e) {
System.out.println(e.getMessage());
}
}
private static void insertRecordIntoTable() throws SQLException {
Connection dbConnection = null;
PreparedStatement preparedStatement = null;
String insertTableSQL = "INSERT INTO DBUSER"
+ "(USER__ID, USERNAME, CREATED__BY, CREATED__DATE) VALUES"
+ "(?,?,?,?)";
try {
dbConnection = getDBConnection();
preparedStatement = dbConnection.prepareStatement(insertTableSQL);
preparedStatement.setInt(1, 11);
preparedStatement.setString(2, "mkyong");
preparedStatement.setString(3, "system");
preparedStatement.setTimestamp(4, getCurrentTimeStamp());
//execute insert SQL stetement
preparedStatement.executeUpdate();
System.out.println("Record is inserted into DBUSER table!");
} catch (SQLException e) {
System.out.println(e.getMessage());
} finally {
if (preparedStatement != null) {
preparedStatement.close();
}
if (dbConnection != null) {
dbConnection.close();
}
}
}
private static Connection getDBConnection() {
Connection dbConnection = null;
try {
Class.forName(DB__DRIVER);
} catch (ClassNotFoundException e) {
System.out.println(e.getMessage());
}
try {
dbConnection = DriverManager.getConnection(
DB__CONNECTION, DB__USER,DB__PASSWORD);
return dbConnection;
} catch (SQLException e) {
System.out.println(e.getMessage());
}
return dbConnection;
}
private static java.sql.Timestamp getCurrentTimeStamp() {
java.util.Date today = new java.util.Date();
return new java.sql.Timestamp(today.getTime());
}
}
