在cas单点登录过程中,在第五步客户端向服务端验证ticket的过程中,调用了
public static String getResponseFromServer(URL constructedUrl, HttpURLConnectionFactory factory, String encoding) {
方法后报错,报
java.io.FileNotFoundException: http://cas.neikongyi.com:8443/cas/login/p3/serviceValidate?ticket=ST-6-9S4Ez-jb8vVRYYi-cJHDnvwnqk8-iZus614b5epaqiZ&service=http%3A%2F%2Fsunny.neikongyi.com%2Fnky%2Fservice%2Fsession%2Fthirdauth
请问下各位,知道是什么原因不🤢