MYSQL存储过程<一>:简单的传入参数、传出参数 3ff0

参考地址：
http://doc.mysql.cn/mysql5/refman-5.1-zh.html-chapter/stored-procedures.html#stored-procedure-replication-faq

// 存储过程

DELIMITER $$

DROP PROCEDURE IF EXISTS `fans`.`voteexecute`$$

CREATE

PROCEDURE `fans`.`voteexecute`(

_uuid varchar(100),

_playerid varchar(50),

_userid varchar(50),

_maxnumber int ,

_datestr varchar(50),

out votecount int,

out updateflag int)

BEGIN

declare _votenumber int default 0;/**定义局部变量*/

declare _voteplayer_id varchar(100) default '0';

set updateflag=0;/**赋值*/

select voteuser.votenumber into _votenumber from voteuser where voteuser.userid = _userid and DATE_FORMAT(voteuser.createtime, '%Y-%m-%d') = _datestr;

select _votenumber;/**类似打印日志*/

if _votenumber=0 then

insert into voteuser (id,userid,playerid,votenumber,createtime) values (_uuid,_userid,_playerid,0,sysdate());

end if;

if _votenumber <_maxnumber then

select voteplayer.id into _voteplayer_id from voteplayer where voteplayer.playerid=_playerid order by voteplayer.createtime desc limit 0,1;

if _voteplayer_id!='0' then

update voteplayer set voteplayer.votes = voteplayer.votes+1 where voteplayer.id=_voteplayer_id;

update voteuser set voteuser.votenumber = voteuser.votenumber+1 where voteuser.userid=_userid and DATE_FORMAT(voteuser.createtime, '%Y-%m-%d');

insert into voteuserrecord (id,userid,playerid,createtime) values (_uuid,_userid,_playerid,sysdate());

set updateflag=1;

end if;

end if;

select voteplayer.votes into votecount from voteplayer where voteplayer.playerid=_playerid order by voteplayer.createtime desc limit 0,1;/** select ... into votecount 其中votecount是需要传出的值*/

END$$

DELIMITER ;

SQLyog中调用：

call voteexecute('12','103352951',5,'2012-08-09',
@a ,@b);//调用

select
@a ,@b;//查看输入结果

JAVA中调用:

try {

Connection conn=MySqlDataSourceFactory.getInstance().getConnection();//获取conn

try{

CallableStatement cs = conn.prepareCall("{call voteexecute(?,?,?,?,?,?,?)}");

cs.setString(1,UUID.randomUUID().toString());

cs.setString(2,playerId);

cs.setString(3,userId);

cs.setInt(4,GlobalVariable.VOTE_MAX);

cs.setString(5,DateFormatUtils.format(new Date(),"yyyy-MM-dd"));

cs.registerOutParameter(6, Types.INTEGER);//输出参数

cs.registerOutParameter(7, Types.INTEGER);//输出参数

cs.execute();

int outInt_1 = cs.getInt(6);

int outInt_2= cs.getInt(7);

cs.close();

}catch (Exception e){

e.printStackTrace();

}

conn.close();

}

catch (SQLException e) {

e.printStackTrace();

}