The small white for bosses with himself

CodePudding user response:

See CommentDao. 83 lines of Java, this line of null Pointers, is an object of this line no assignment, you can debug, which object is not the assignment,

CodePudding user response:

reference 1/f, password test response:

see CommentDao. 83 lines of Java, this line of null Pointers, is an object of this line no assignment, you can debug, which objects are no assignment,

this is an error is not connect with each other

CodePudding user response:

1, confirm the mysql is running
2, you run the program on machine, test the network is connected, Telnet 192.168.0.132 1433

CodePudding user response:

password test reference 3 floor response:

1, confirm that mysql is running
2, you run the program on machine, test the network is connected, Telnet 192.168.0.132 1433

Elder brother Telnet impassability SQLServer2012 local are enabled is connected not database whether 192.168.0.132 this address is wrong

CodePudding user response:

Service in the local, use localhost IP address