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javamysqlspring-mvcjdbctemplate

How can I get the autoincremented id when I insert a record in a table via jdbctemplate


private void insertIntoMyTable (Myclass m) {
    String query = "INSERT INTO MYTABLE (NAME) VALUES (?)";
    jdbcTemplate.update(query, m.getName());
}

When the above query inserts a record, the ID column in the table autoincrements.

Is there a way to get this auto incremented ID back at the time of the insertion. So in this example the return value of my method would be int


Solution

  • Check the Chapter 11. Data access using JDBC reference. You can use jdbcTemplate.update as:

    EDIT Added imports as asked

    import java.sql.Connection;
    import java.sql.PreparedStatement;
    import java.sql.SQLException;
    
    import org.springframework.jdbc.core.JdbcTemplate;
    import org.springframework.jdbc.core.PreparedStatementCreator;
    import org.springframework.jdbc.support.GeneratedKeyHolder;
    import org.springframework.jdbc.support.KeyHolder;
    

    following is the code usage:

    final String INSERT_SQL = "insert into my_test (name) values(?)";
    final String name = "Rob";
    KeyHolder keyHolder = new GeneratedKeyHolder();
    jdbcTemplate.update(
        new PreparedStatementCreator() {
            public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
                PreparedStatement ps =
                    connection.prepareStatement(INSERT_SQL, new String[] {"id"});
                ps.setString(1, name);
                return ps;
            }
        },
        keyHolder);
    // keyHolder.getKey() now contains the generated key