Cas集群中对于tgt使用redis共享的操作

来源：互联网发布：nginx内置变量详解编辑：程序博客网时间：2024/06/05 10:22

继承cas官方的类AbstractDistributedTicketRegistry

package org.jasig.cas.ticket.registry;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Collection;

import org.jasig.cas.ticket.Ticket;
import org.jasig.cas.ticket.TicketGrantingTicket;
import org.jasig.cas.util.PropertiesUtil;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

public class RedisTicketRegistry extends AbstractDistributedTicketRegistry{
private static int redisDatabaseNum;
private static String hosts;
private static int port;
private static int st_time; //ST最大空闲时间
private static int tgt_time; //TGT最大空闲时间
private static String password;
private static int timeout;

private static JedisPool cachePool;

static {
redisDatabaseNum =Integer.valueOf(PropertiesUtil.getProp("redis-tgt.properties", "redis_database_num")); //指定redis索引值
hosts =PropertiesUtil.getProp("redis-tgt.properties", "hosts"); //主机的值
port = Integer.valueOf(PropertiesUtil.getProp("redis-tgt.properties", "port")) ; //端口
st_time = Integer.valueOf(PropertiesUtil.getProp("redis-tgt.properties", "st_time")); //ST最大空闲时间
tgt_time =Integer.valueOf(PropertiesUtil.getProp("redis-tgt.properties", "tgt_time")); //TGT最大空闲时间
password =PropertiesUtil.getProp("redis-tgt.properties", "password"); //密码
timeout=Integer.valueOf(PropertiesUtil.getProp("redis-tgt.properties", "timeout")); //超时时间
//cachePool = new JedisPool(new JedisPoolConfig(), hosts, port);
cachePool=new JedisPool(new JedisPoolConfig(), hosts, port, timeout, password);
}
public void addTicket(Ticket ticket) {

Jedis jedis = cachePool.getResource();
jedis.select(redisDatabaseNum);

int seconds = 0;

String key = ticket.getId() ;

if(ticket instanceof TicketGrantingTicket){
//key = ((TicketGrantingTicket)ticket).getAuthentication().getPrincipal().getId();
seconds = tgt_time/1000;
}else{
seconds = st_time/1000;
}


ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = null;
try{
oos = new ObjectOutputStream(bos);
oos.writeObject(ticket);

}catch(Exception e){
log.error("adding ticket to redis error.");
}finally{
try{
if(null!=oos) oos.close();
}catch(Exception e){
log.error("oos closing error when adding ticket to redis.");
}
}
jedis.set(key.getBytes(), bos.toByteArray());
jedis.expire(key.getBytes(), seconds);

cachePool.returnResource(jedis);

}

public Ticket getTicket(final String ticketId) {
return getProxiedTicketInstance(getRawTicket(ticketId));
}


private Ticket getRawTicket(final String ticketId) {

if(null == ticketId) return null;

Jedis jedis = cachePool.getResource();
jedis.select(redisDatabaseNum);

Ticket ticket = null;
byte[] bs = jedis.get(ticketId.getBytes());
if(bs!= null){
ByteArrayInputStream bais = new ByteArrayInputStream(jedis.get(ticketId.getBytes()));
ObjectInputStream ois = null;

try{
ois = new ObjectInputStream(bais);
ticket = (Ticket)ois.readObject();
}catch(Exception e){
log.error("getting ticket to redis error.");
}finally{
try{
if(null!=ois) ois.close();
}catch(Exception e){
log.error("ois closing error when getting ticket to redis.");
}
}
}
cachePool.returnResource(jedis);
return ticket;
}



public boolean deleteTicket(final String ticketId) {

if (ticketId == null) {
return false;
}
Jedis jedis = cachePool.getResource();
jedis.select(redisDatabaseNum);

jedis.del(ticketId.getBytes());

cachePool.returnResource(jedis);

return true;
}

public Collection<Ticket> getTickets() {

throw new UnsupportedOperationException("GetTickets not supported.");

}

protected boolean needsCallback() {
return false;
}

protected void updateTicket(final Ticket ticket) {
addTicket(ticket);
}

}

修改ticketRegistry.xml

注销掉红框中的东西引入改造后的票据管理

因为使用了reids的时间管理机制

这里我们将原有的配置给取消掉

下一步就是服务器间的session共享问题

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