JBoss下采用thin driver连接 Oracle RAC方法

RAC的配置如下:

node1:ip地址192.168.10.1,实例名:rac1,主机名:x1

node2:ip地址192.168.10.2,实例名:rac2,主机名:x2

RAC服务名为x

配置过程如下:

1、google了一下,发现Bea网站提供的连接RAC方法最多,拷贝了如下的jdbcURL:     

jdbc:oracle:thin:@(description=(address_list= (address=(host=192.168.10.1) (protocol=tcp)(port=1521))(address=(host=192.168.10.2)(protocol=tcp) (port=1521)) (load_balance=yes)(failover=yes))(connect_data=(service_name= x)))
但是出现如下错误:
Io 异常: NL Exception was generated;

2、又从网上google、baidu一番,虽然找到n方法,但就是连不上;

3、无奈之中,打开数据库tnsname.ora,发现其中的配置如下:

 x=
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = x1)(PORT = 1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = x2)(PORT = 1521))
      (LOAD_BALANCE = yes)
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = x)
    )
  )
于是将jdbcUR修改成:
jdbc:oracle:thin:@(description=(address_list= (address=(host=x1) (protocol=tcp)(port=1521))(address=(host=x2)(protocol=tcp) (port=1521)) (load_balance=yes)(failover=yes))(connect_data=(service_name= x)))
测试一下,结果竟然成功了;初步认为是:数据库服务采用主机名,而在jdbcURL中采用ip地址的方式就会出现NL Exception的问题;
建议:对于连接RAC有问题的情况,最好使用tnsnames.ora中连接字符串进行连接;

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