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suzikid

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注册: 2011-04-18
专业: 模式识别

[求助] httpget设置网络超时时间

package com.example.httpgetpost;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;

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 org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class HttpGetPost extends Activity {
private Button httpGetButton;
private URL url=null;

public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);

try {
url = new URL("http://www.baidu.com/"

;
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
      httpGetButton = (Button)findViewById(R.id.httpget);
      //httpPostButton = (Button)findViewById(R.id.httppost);
      httpGetButton.setOnClickListener(new OnClickListener(){
        public void onClick(View arg0) {
HttpGet httpget = new HttpGet( url.toString() );
InputStream in=null;
         HttpClient client = new DefaultHttpClient();
         HttpParams params = client.getParams();
         HttpConnectionParams.setConnectionTimeout(params, 30000);

      try {
HttpResponse response = client.execute( httpget );
HttpEntity httpentity = response.getEntity();
in=httpentity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
String line="";
String result = "";
while((line=reader.readLine())!=null)
{
result = result+line;
}
System.out.println("==========="

;
System.out.println(result);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally{
if(in!=null)
try {
in.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
}
}
XML语言：
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android

rientation="vertical" >
          android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/mTextView"
      android:text="@string/hello_world"
      />
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/httpget"
      android:text="@string/httpget"/>
          android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/httppost"
      android:text="@string/httppost"/>

为何在2.3.1上可以运行，但是在4.0.3上却不可以，而且httpget可以用网络url吗？为什么好像只可以用本地url，换成网络url就连接不上

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