Io 异常: The Network Adapter could not establish the connection
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Io 异常: The Network Adapter could not establish the connection
这个异常的出现一般与数据库和你的PC的设置有关
这种异常的出现大致上有下面几种：
1。IP错误。
在设置URL时错误，例如：jdbc:oracle:thin:@192.168.248.154:1521:test
数据库服务器不正确：ping 服务器IP是否正确。不正确，将URL更改为正确
端口号错误：一般不会错误。
2。防火墙
如果机器上安装有放火墙，可能是服务器端口号屏蔽而造成的。关闭防火墙后，尝试重新连接。
3。数据库监听未启动
启动Oracle的监听服务
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
- Io 异常: The Network Adapter could not establish the connection
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