The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
报错：The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
莫名奇妙的直接跑到user这里来了，都没有经过servlet，这里的action本来就是要直接跳到servlet的
这样改一下就好了
说明：
用一个语句找错误出现的大致位置的方法很好！！！