HttpURLConnection.connect()超时问题

申明：
网络正常时，一切正常

前提：
手机连接上一个有强大wifi信号，却不能上网的wifi，可以用笔记本共享热点，但是这个热点不能上网来模拟

情况：
我连接的是WebService 进行登录操作 , 复写了ServiceConnection和Transport来设置超时时间，
代码中我设置了connection.setConnectTimeout(3*1000);
connection.setReadTimeout(3*1000);
但是执行时，这些设置的超时都没有效果，过几分钟才会爆出异常

07-02 10:34:38.485: W/System.err(14124): java.net.UnknownHostException: Unable to resolve host "xxx.xxxx.com": No address associated with hostname

07-02 10:34:38.525: W/System.err(14124):at java.net.InetAddress.lookupHostByName(InetAddress.java:440)

07-02 10:34:38.525: W/System.err(14124):at java.net.InetAddress.getAllByNameImpl(InetAddress.java:244)

07-02 10:34:38.525: W/System.err(14124):at java.net.InetAddress.getAllByName(InetAddress.java:219)

07-02 10:34:38.525: W/System.err(14124):at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)

07-02 10:34:38.525: W/System.err(14124):at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)

07-02 10:34:38.525: W/System.err(14124):at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)

07-02 10:34:38.525: W/System.err(14124):at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)

07-02 10:34:38.525: W/System.err(14124):at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)

07-02 10:34:38.535: W/System.err(14124):at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:325)

07-02 10:34:38.535: W/System.err(14124):at libcore.net.http.HttpEngine.connect(HttpEngine.java:320)

07-02 10:34:38.535: W/System.err(14124):at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:295)

07-02 10:34:38.535: W/System.err(14124):at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:245)

07-02 10:34:38.535: W/System.err(14124):at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80)

07-02 10:34:38.535: W/System.err(14124):at com.myapplication.net.MServiceConnectionSE.connect(MServiceConnectionSE.java:30)

07-02 10:34:38.535: W/System.err(14124):at com.myapplication.net.MHttpTransportSE.call(MHttpTransportSE.java:95)

07-02 10:34:38.535: W/System.err(14124):at com.myapplication.net.WebServiceHelper.login(WebServiceHelper.java:93)

07-02 10:34:38.545: W/System.err(14124):at com.myapplication.LoginActivity$LogiTask.doInBackground(LoginActivity.java:429)

07-02 10:34:38.545: W/System.err(14124):at com.myapplication.LoginActivity$LogiTask.doInBackground(LoginActivity.java:1)

07-02 10:34:38.545: W/System.err(14124):at android.os.AsyncTask$2.call(AsyncTask.java:287)

07-02 10:34:38.545: W/System.err(14124):at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)

07-02 10:34:38.545: W/System.err(14124):at java.util.concurrent.FutureTask.run(FutureTask.java:137)

07-02 10:34:38.545: W/System.err(14124):at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)

07-02 10:34:38.555: W/System.err(14124):at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)

07-02 10:34:38.555: W/System.err(14124):at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)

07-02 10:34:38.565: W/System.err(14124):at java.lang.Thread.run(Thread.java:864)

07-02 10:34:38.565: W/System.err(14124): Caused by: libcore.io.GaiException: getaddrinfo failed: EAI_NODATA (No address associated with hostname)

07-02 10:34:38.565: W/System.err(14124):at libcore.io.Posix.getaddrinfo(Native Method)

07-02 10:34:38.565: W/System.err(14124):at libcore.io.ForwardingOs.getaddrinfo(ForwardingOs.java:55)

07-02 10:34:38.565: W/System.err(14124):at java.net.InetAddress.lookupHostByName(InetAddress.java:420)

07-02 10:34:38.565: W/System.err(14124):... 25 more

07-02 10:34:38.565: W/System.err(14124): Caused by: libcore.io.ErrnoException: getaddrinfo failed: ETIMEDOUT (Connection timed out)

07-02 10:34:38.575: W/System.err(14124):... 28 more

Debug 下，线程被阻塞在 connection.connect(); 这句代码中

LogCat中，在阻塞的同时，时不时打出这样的log，表示看不懂

07-02 10:33:39.855: D/libc(14124): Querying server (# 1) address = 192.168.155.1 (try=2,nscount=2)

07-02 10:33:44.855: D/libc(14124): Querying server (# 2) address = 192.168.1.1 (try=2,nscount=2)

07-02 10:33:49.855: D/libc(14124): res_nsend exit-1: total retry = 3 times, errno=110,v_circuit=0

07-02 10:34:02.275: D/libc(14124): Querying server (# 1) address = 192.168.155.1 (try=2,nscount=2)

07-02 10:34:05.875: D/libc(14124): Querying server (# 1) address = 192.168.155.1 (try=2,nscount=2)

07-02 10:34:07.305: D/libc(14124): Querying server (# 2) address = 192.168.1.1 (try=2,nscount=2)

07-02 10:34:10.875: D/libc(14124): Querying server (# 2) address = 192.168.1.1 (try=2,nscount=2)

07-02 10:34:12.325: D/libc(14124): res_nsend exit-1: total retry = 3 times, errno=110,v_circuit=0

07-02 10:34:15.875: D/libc(14124): res_nsend exit-1: total retry = 3 times, errno=110,v_circuit=0

07-02 10:34:28.435: D/libc(14124): Querying server (# 1) address = 192.168.155.1 (try=2,nscount=2)

07-02 10:34:33.465: D/libc(14124): Querying server (# 2) address = 192.168.1.1 (try=2,nscount=2)

07-02 10:34:38.485: D/libc(14124): res_nsend exit-1: total retry = 3 times, errno=110,v_circuit=0

悲催的loading：
由于设置loading , 这几分钟时间loading 就一直在转着，我用浏览器打开任意网页，基本也是几分钟的loading时间，最后爆出网页连接出错

想知道的事：
我怎么可以从代码中去判断或者设置这个超时吗？ 在有wifi信号却上不了网的情况下，我怎么去判断是否可以连接服务器，或者HttpURLConnection有设置这种超时的方法么？ 感谢大神解答。。。。。（我又试了一次已经过去十分钟了，悲催的loading还在转着，囧