java 中如何执行插入操作后返回自增id

参考JAVA　的API

Interface  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);//