JDBC 连接 Oracle 11gR2 集群环境,使用Oracle 11gR2新组件 scan 方式连接(假设scan_vip为192.168.100.217)
使用Oracle 11gR2新组件 scan 方式连接(假设scan_vip为192.168.100.217)
String url = "jdbc:oracle:thin:@192.168.100.217:1521/prod"
也可以使用 11gr2以前vip方式连接
String url = "jdbc:oracle:thin:@(DESCRIPTION ="
+ "(ADDRESS_LIST ="
+ "(ADDRESS=(PROTOCOL=TCP)(HOST=el1)(PORT=1521))"
+ "(ADDRESS=(PROTOCOL=TCP)(HOST=el2)(PORT=1521))"
+ "(LOAD_BALANCE = yes)"
+ ")" + "(CONNECT_DATA=" + "(SERVER=DEDICATED)"
+ "(SERVICE_NAME=prod )" + ")" + ")";
注:jdbc thin使用 11gr2以前 vip方式连接, host中不可以直接使用 ip,否则会出现NL Exception was generated 错误。需要使用别名。并且在 hosts文件中定义。
例如本例中两台机器的 vip为 192.168.100.123和 192.168.100.124并且,别名为 el1, el2。那么在 hosts文件中需要有下面两行
192.168.100.123 el1
192.168.100.124 el2
host文件位置:
Linux|Unix:/etc/hosts
Windows:$系统盘\WINDOWS\system32\drivers\etc\hosts
下面是一个完整的实例:

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