我照著tutorialspoint的教學一步一步做
https://www.tutorialspoint.com/spring/spring_mvc_hello_world_example.htm
用Eclipse產生的目錄結構 (Spring Legacy Project)
http://i.imgur.com/SR2YAJD.png
web.xml
http://i.imgur.com/PodeSDn.png
servlet.xml
http://i.imgur.com/vXVftAL.png
controller
http://i.imgur.com/u3SX4FT.png
不管是
http://localhost:8080/example <-執行時跳的頁面
http://localhost:8080/example/home
http://localhost:8080/HelloWeb/
http://localhost:8080/HelloWeb/home
通通都是404
http://i.imgur.com/vePLk21.png
求大大好心指點，謝謝

補充 server是用wildfly自行解答 https://stackoverflow.com/a/32368844多加 jboss-web.xml 並指定 context root 為專案名稱