Oracle 连接Io exception : The Network Adapter could not
今天碰到，Tomcat 连 Oracle 数据库时出现如下异常信息，org.apache.commons.dbcp.SQLNestedException:Cannot create PoolableConnectionFactory(Io exception : The Network Adapter could not establish the connection)
今天碰到，Tomcat 连 Oracle 数据库时出现如下异常信息， org.apache.commons.dbcp.SQLNestedException:Cannot create PoolableConnectionFactory (Io exception : The Network Adapter could not establish the connection)具体错误
java.sql.SQLRecoverableException: Io 异常: The Network Adapter could not establish the connection
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:101)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:173)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:229)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:458)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:411)
at oracle.jdbc.driver.PhysicalConnection.
at oracle.jdbc.driver.T4CConnection.
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:474)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at chap6.DBUtil.getConnection(DBUtil.java:14)
at chap6.StatementDemo.main(StatementDemo.java:15)
java.sql.SQLException: 驱动错误或连接失败！
at chap6.DBUtil.getConnection(DBUtil.java:20)
at chap6.StatementDemo.main(StatementDemo.java:15)
解决办法一
后来在防火墙开了3个端口， 8080, 8009, 8005， 问题搞定
解决办法二
oracle的thin连接分为两种，一个是SID,一个是SERVICE NAME，而这两个的差别就在于服务器如何是配置SID,还是SERVICE NAME,配置完数据库后，可以在
| 代码如下 | 复制代码 |
|
D:oracleproduct10.2.0db_1NETWORKADMIN |
|
目录下查找，tnsnames.ora 文件，看看里面的参数
根据上面的数据配置确认是哪个方式
A,如果是SID模式，JDBC连接数据库的形式是
| 代码如下 | 复制代码 |
|
String url = "jdbc:oracle:thin:@//192.168.10.105:1522:uportal"; |
|
请注意在连数据实例的时候，是使用 英文冒号 :
B,如果是SERVICE 模式，JDBC连接数据的形式是
| 代码如下 | 复制代码 |
|
String url = "jdbc:oracle:thin:@//192.168.10.105:1522/uportal"; |
|
请注意在连数据实例的时候，是使用 英文斜杠 /
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