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Oracle 连接Io exception : The Network Adapter could not

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Jun 07, 2016 pm 05:46 PM

javajdbcnbsporacle

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.(PhysicalConnection.java:490)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:202)
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 /

Statement

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