为什么在JavaProject中没问题的代码到Android中就报错 关于UrlConnectoin java.io.EOFExceptoin

这是报错信息：

07-05 23:31:36.827: W/System.err(2847): java.io.EOFException

07-05 23:31:36.835: W/System.err(2847): at java.util.zip.GZIPInputStream.readFully(GZIPInputStream.java:214)

07-05 23:31:36.835: W/System.err(2847): at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:81)

07-05 23:31:36.835: W/System.err(2847): at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:64)

07-05 23:31:36.842: W/System.err(2847): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.initContentStream(HttpURLConnectionImpl.java:539)

07-05 23:31:36.842: W/System.err(2847): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.retrieveResponse(HttpURLConnectionImpl.java:1046)

07-05 23:31:36.842: W/System.err(2847): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:512)

07-05 23:31:36.842: W/System.err(2847): at com.avin.priney.utils.GBKGetter.getKnowledgeByWord(GBKGetter.java:378)

07-05 23:31:36.842: W/System.err(2847): at com.avin.priney.android.AnswerStrategy.getFinalAnswer(AnswerStrategy.java:265)

07-05 23:31:36.842: W/System.err(2847): at com.avin.priney.android.PrineyMainActivity.getResultTxtByQuestionTxt(PrineyMainActivity.java:272)

07-05 23:31:36.850: W/System.err(2847): at com.avin.priney.android.PrineyMainActivity.onClick(PrineyMainActivity.java:145)

07-05 23:31:36.850: W/System.err(2847): at android.view.View.performClick(View.java:2485)

07-05 23:31:36.850: W/System.err(2847): at android.view.View$PerformClick.run(View.java:9090)

07-05 23:31:36.850: W/System.err(2847): at android.os.Handler.handleCallback(Handler.java:587)

07-05 23:31:36.850: W/System.err(2847): at android.os.Handler.dispatchMessage(Handler.java:92)

07-05 23:31:36.850: W/System.err(2847): at android.os.Looper.loop(Looper.java:130)

07-05 23:31:36.858: W/System.err(2847): at android.app.ActivityThread.main(ActivityThread.java:3859)

07-05 23:31:36.858: W/System.err(2847): at java.lang.reflect.Method.invokeNative(Native Method)

07-05 23:31:36.858: W/System.err(2847): at java.lang.reflect.Method.invoke(Method.java:507)

07-05 23:31:36.858: W/System.err(2847): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)

07-05 23:31:36.858: W/System.err(2847): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)

07-05 23:31:36.858: W/System.err(2847): at dalvik.system.NativeStart.main(Native Method)

下面贴出来出问题的代码段：

String webUrl = "http://baike.baidu.com/searchword/?word="+nCode+"&pic=1";

//内置的百科页面地址

String contentUrl = "http://baike.baidu.com";

BufferedReader br = null;

String backLine = null;

URL url = null;

try {

url = new URL(webUrl);



Log.d("Avin","webUrl going open...");



URLConnection conn = url.openConnection();



Log.d("Avin","webUrl opened...");

Log.d("Avin","the question is-->"+question);



//异常信息显示是这一行报错

br = new BufferedReader(new InputStreamReader(conn.getInputStream()));



backLine = br.readLine();



Log.d("Avin",backLine);

int clmindex = 1;

while(backLine != null){

backLine = br.readLine();

/*

if(clmindex == 20){

//跟踪到目标页面所在行，跳出循环

break;

}

*/

System.out.println(clmindex+"-->"+backLine);

clmindex++;

}

br.close();

br = new BufferedReader(new InputStreamReader(conn.getInputStream()));

这一行报错！查了一天的资料，就是没进展，走投无路，特此来等高手解答！