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Seek help from god help

Time:09-20

Beginners JDBC url link oracle database today is on the newspaper I ended up with this error source is such a great god have know what's going on

CodePudding user response:

Client: IP address, port, service name, zhang
Server: whether the network is connected, the firewall closed
Basically there will be no problem

CodePudding user response:

The original poster can consider to change a jar package, which may be related to the jar package version,

CodePudding user response:

A look at is the 12 c database connection, the driver package version for you, for it is easy to make a mistake, online himself trod the pit
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