我想在表中添加一个空行,并在java中获取自动增量ID。我不确定为什么,但我仍然获得userId = 0。
我的java课:
public class UserProfileDao {
private DBConnectionManager connectionManager;
private static final String INSERT_USER = "insert into user_profile values(default)";
private int userId;
public UserProfileDao(DBConnectionManager connectionManager) {
this.connectionManager = connectionManager;
try (Connection connection = connectionManager.getConnection()) {
try (PreparedStatement preparedStatement = connection.prepareStatement(INSERT_USER)) {
try (ResultSet generatedKey = preparedStatement.getGeneratedKeys()) {
if (generatedKey.next()) {
userId = generatedKey.getInt(1);
}
}
}
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
public int getUserId() {
return userId;
}
}
最佳答案
您可以使用:
LASTVAL()作为当前会话中的下一个语句并获取值
关于java - 如何插入空行并获取自动增量ID?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/29949868/