SDK 4.0 使用httpClient访问网络资源,报异常

package mars.http;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class HttpActivity extends Activity {private Button requestButton = null;HttpResponse httpResponse = null;HttpEntity httpEntity = null;InputStream inputStream = null;BufferedReader bufferedReader = null;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);requestButton = (Button) findViewById(R.id.requestButton);requestButton.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {String url = "http://www.baidu.com";HttpGet httpGet = new HttpGet(url);HttpClient httpClient = new DefaultHttpClient();try {httpResponse = httpClient.execute(httpGet);httpEntity = httpResponse.getEntity();inputStream = httpEntity.getContent();bufferedReader = new BufferedReader(new InputStreamReader(inputStream));StringBuffer result = new StringBuffer();String temp = "";while ((temp = bufferedReader.readLine()) != null) {result.append(temp);}System.out.println(result.toString());} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}finally{try {inputStream.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}});}}

?如果ActivityManifest中的minSDK

<uses-sdk android:minSdkVersion="14" />

?配置如果写成 14 就会报异常。改为14一下就正常。不知道是不是bug

?