Question

我正在尝试从我的服务器上的网页获取数据。但是，当我运行此代码时，它总是在httpClient.execute（）

失败

String flixURL=("http://myserver.com:6718/cgi-bin/log.pl?zip=" + zippy);            
Toast.makeText(getBaseContext(),flixURL,5).show();

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(flixURL);
ResponseHandler<String> resHandler = new BasicResponseHandler();
System.out.println("resHandler"+resHandler);

try {                
String page = httpClient.execute(httpGet, resHandler);                      
System.out.println("page"+page);
} 
catch (ClientProtocolException e) 
{
e.printStackTrace();System.out.println(e);
} 
catch (IOException e) {
e.printStackTrace();System.out.println(e);
}

调试器告诉我可能是UnknownHostException。我已尝试过不同的URL，但问题仍然存在。

Android Manifest文件就像：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.andtwi"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name=".AndTwitterActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
              <activity android:name=".screen2" android:label="Screen2">
      </activity>
      <uses-permission android:name="android.permission.INTERNET" />

    </application>

</manifest>

任何人都可以告诉我提示问题在哪里。感谢..

Answer 1

移动此行

<uses-permission android:name="android.permission.INTERNET" />

外<application>代码：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.andtwi"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name=".AndTwitterActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
              <activity android:name=".screen2" android:label="Screen2">
      </activity>

    </application>

</manifest>

HttpClient.execute抛出的未知主机异常

1 个答案: