Tomcat与JDK版本对应关系

表格来自：http://tomcat.apache.org/whichversion.html

Servlet Spec	JSP Spec	EL Spec	WebSocket Spec	JASPIC Spec	Apache Tomcat Version	Latest Released Version	Supported Java Versions
4.0	2.3	3.0	1.1	1.1	9.0.x	9.0.6	8 and later
3.1	2.3	3.0	1.1	1.1	8.5.x	8.5.29	7 and later
3.1	2.3	3.0	1.1	N/A	8.0.x (superseded)	8.0.50 (superseded)	7 and later
3.0	2.2	2.2	1.1	N/A	7.0.x	7.0.85	6 and later (7 and later for WebSocket)
2.5	2.1	2.1	N/A	N/A	6.0.x (archived)	6.0.53 (archived)	5 and later
2.4	2.0	N/A	N/A	N/A	5.5.x (archived)	5.5.36 (archived)	1.4 and later
2.3	1.2	N/A	N/A	N/A	4.1.x (archived)	4.1.40 (archived)	1.3 and later
2.2	1.1	N/A	N/A	N/A	3.3.x (archived)	3.3.2 (archived)	1.1 and later