Android：为 HttpPost 设置连接超时

Question

实际上这是我设置连接超时所必须做的（来自kuester2000的this answer）：

HttpGet httpPost = new HttpGet("www.xxxx.com/method");
HttpParams httpParameters = new BasicHttpParams();
// Set the timeout in milliseconds until a connection is established.
// The default value is zero, that means the timeout is not used. 
int timeoutConnection = 3000;
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
// Set the default socket timeout (SO_TIMEOUT) 
// in milliseconds which is the timeout for waiting for data.
int timeoutSocket = 5000;
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);

DefaultHttpClient httpClient = new DefaultHttpClient(httpParameters);
HttpResponse response = httpClient.execute(httpGet);

但在我的应用程序中，我将

httpClient

作为 MainActivities 中的

Static field

并在所有其他活动中使用它。只是为了开会。

所以，我应该在所有活动中都有这个代码吗：

HttpParams httpParameters = new BasicHttpParams();
// Set the timeout in milliseconds until a connection is established.
// The default value is zero, that means the timeout is not used. 
int timeoutConnection = 3000;
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
// Set the default socket timeout (SO_TIMEOUT) 
// in milliseconds which is the timeout for waiting for data.
int timeoutSocket = 5000;
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);

然后

MainActivity.httpClient.setParams(httpParameters);

我只是想知道，我如何在

params

中设置

MainActivity

并在所有其他Activitites中使用httpClient而不是在每个Activity中设置参数。

谢谢

Answer 1

在主活动类中使用静态代码块来设置参数。

public class MainActivity extends Activity {

    static final DefaultHttpClient httpClient;

    static {    
        HttpParams httpParameters = new BasicHttpParams();
        HttpConnectionParams.setConnectionTimeout(httpParameters, 3000);
        HttpConnectionParams.setSoTimeout(httpParameters, 5000);
        httpClient = new DefaultHttpClient(httpParameters);
    }


   ...

}

Answer 2

试试这个：

创建变量，如：

    private static final long CONN_MGR_TIMEOUT = 10000;
    private static final int CONN_TIMEOUT = 50000;
    private static final int SO_TIMEOUT = 50000;

并将此代码与 httppost 一起使用：

    ConnManagerParams.setTimeout(params, CONN_MGR_TIMEOUT);
    HttpConnectionParams.setConnectionTimeout(params, CONN_TIMEOUT);
    HttpConnectionParams.setSoTimeout(params, SO_TIMEOUT);