Today, in this machine, the operation environment on the simulation test server is configured, all OK is reported that the database connection is wrong. After the check is found to find the database connection class, this class is a colleague to transfer to me in the form of a RAR package, at the time I thought he had already formed a format of the JAR package, then changed to RAR to transfer to me, and put it directly under Web-INF / LIB, so the above errors appeared.
Then I spent 2 hours, one step, one step tracking program (ie there is no comment, there is no artifact, I can't use JBuilder, I can only in the class system.out.println ()
). Finally, I doubt whether he didn't make it into a JAR package format, so I re-packaged, restart Tomcat, everything OK, FT, really let me anger! ! !
.
It seems that you can't think of it in the future, you feel doubtful to re-do.
