java 中如何执行插入操作后返回自增id

参考JAVA　的APIInterface  java.sql.Statement int executeUpdate(String sql,　 int autoGeneratedKeys)          Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object should be made available for retrieval.

sql要是insert语句int key = statement.executeUpdate(sql, Statement.RETURN_GENERATED_KEYS);//