android studio HttpURLConnection请求出问题

Question

用HttpURLConnection请求百度首页成功，(GET请求)请求这个地址也成功：http://10.207.112.191:8080，说明后台服务器可用但请求这个地址不成功：http://10.207.112.191:8080/user/user后台测试代码：用的是SpringMVC@RequestMapping(value = "/user", method = RequestMethod.GET)      public void Reply(HttpServletResponse response) throws IOException {          PrintWriter out = response.getWriter();        System.out.println("来自安卓");        out.print("OK");        out.flush();              out.close();    }logcat:D/NetworkSecurityConfig: No Network Security Config specified, using platform defaultD/Tag: 未进入httpW/System.err: java.io.FileNotFoundException: http://10.207.112.191:8080/userW/System.err:     at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:250)W/System.err:     at hope.HttpUtil.HttpUtil$1.run(HttpUtil.java:43)W/System.err:     at java.lang.Thread.run(Thread.java:761)