Problems with slow Oracle database connections

1. Phenomenon
Engineering for Spring+mybatis+xfire,webservice Engineering services, the implementation of interface data functions

2. Repair method
After a variety of attempts:
1. Re-deploy the project without fruit

2. Redeploy Tomcat without fruit

3. Re-configure the JDK environment without fruit

3. Amazing Discoveries
Finally found in the use of Plsql and Sqplus connection database very slow, ah hurriedly to the database Wow

The two Oracle Master libraries were shutdown, and the server was restarted (remember, to stay in the database and restart the server)

Then, a variety of ping servers, afraid AH (my careful dear ... ）

4, the server restart normal

Database connection for various services is now a lot better, about 10 seconds can be connected to the database

But it is very tangled ah, still will be slow for 10 seconds ... Although this is very acceptable now, but I want to why Ah, you kiss and meet this problem add me QQ Group:299502007 Oh, we discuss the next