注解RequestMapping中produces属性可以设置返回数据的类型以及编码，可以是json或者xml：@RequestMapping(value="/xxx",produces = {"application/json;charset=UTF-8"})或@RequestMapping(value="/xxx",produces = {"application/xml;charset=UT

1、查看用户的proifle是那个，一般是default：sql>SELECT username,PROFILE FROM dba_users;2、查看指定概要文件（如default）的密码有效期设置：sql>SELECT * FROM dba_profiles s WHERE s.profile='DEFAULT' AND resource_name='PASSWORD_LIFE_T