springmvc不进入Controller导致404

转自：https://blog.csdn.net/qq_36769100/article/details/71746449#1.%E5%90%AF%E5%8A%A8%E9%A1%B9%E7%9B%AE%E5%90%8E%EF%BC%8C%E8%AE%BF%E9%97%AE%E9%A1%B9%E7%9B%AE%E6%97%A0%E6%B3%95%E8%BF%9B%E5%85%A5%E4%B8%BB%E9%A1%B5%EF%BC%8C%E4%BB%8E%E8%80%8C%E5%87%BA%E7%8E%B0404%EF%BC%9B

https://blog.csdn.net/qq_36769100/article/details/71746449#1.%E5%90%AF%E5%8A%A8%E9%A1%B9%E7%9B%AE%E5%90%8E%EF%BC%8C%E8%AE%BF%E9%97%AE%E9%A1%B9%E7%9B%AE%E6%97%A0%E6%B3%95%E8%BF%9B%E5%85%A5%E4%B8%BB%E9%A1%B5%EF%BC%8C%E4%BB%8E%E8%80%8C%E5%87%BA%E7%8E%B0404%EF%BC%9B