You're getting the error because the hibernate libraries are not available to Tomcat. In your picture, below the hibernate library set there is an empty set called 'Web App Libraries' - this is the set your hibernate libraries need to be in.
Right click your project -> Build Path -> Configure Build Path, and remove the hibernate set from the build path. Now import the jars into the WEB-INF/lib folder. Refresh your project and now you should see them listed in the 'Web App Libraries' set (i appreciate this is somewhat annoying that you have to import them into your code base - someone else might know a better way to do this that doesn't involve copying the jars in)
這里要put into lib 一下（雖然以前不put影響的也只是打war包后的項目，沒想到這里居然會導致找不到hibernate的jar包，以后只要有新包引入，一定會第一時間put into lib 進去）
然后再測試功能，功能正常
