import cz.msebera.android.httpclient.HttpException; //导入依赖的package包/类
public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException {
    AuthState authState = (AuthState) context.getAttribute(ClientContext.TARGET_AUTH_STATE);
    CredentialsProvider credsProvider = (CredentialsProvider) context.getAttribute(
            ClientContext.CREDS_PROVIDER);
    HttpHost targetHost = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);

    if (authState.getAuthScheme() == null) {
        AuthScope authScope = new AuthScope(targetHost.getHostName(), targetHost.getPort());
        Credentials creds = credsProvider.getCredentials(authScope);
        if (creds != null) {
            authState.setAuthScheme(new BasicScheme());
            authState.setCredentials(creds);
        }
    }
}
 

import cz.msebera.android.httpclient.HttpException; //导入依赖的package包/类
public static AppException network(Exception e) {
    if (e instanceof UnknownHostException || e instanceof ConnectException) {
        return new AppException(TYPE_NETWORK, 0, e);
    } else if (e instanceof HttpException) {
        return http(e);
    } else if (e instanceof SocketException) {
        return socket(e);
    }
    return http(e);
}