Question

你好我之前从未使用过HttpResponses，我希望能够在3分钟后断开网络连接，因为用户失去了与网络的连接。是否有完整的代码，我可以看到这样的事情？

Answer 1

我知道两种可能的方法：

使用DefaultHttpClient的最简单方法，已在isma3l推荐link中解释：

这样的事情：

private DefaultHttpClient httpClient;
// set connection timeout to 1 second
HttpConnectionParams.setConnectionTimeout(httpParameters, 1000);
// set socket timeout to 1 second
HttpConnectionParams.setSoTimeout(httpParameters, 1000);
httpClient = new DefaultHttpClient(httpParameters);
/* === and then, use your httpClient to perform your operations... === */

硬核方式：通过使用处理程序调用另一个线程中的Http操作来手动处理与线程/处理程序的连接，以接收其回调。在处理程序中，您调用postDelayed方法作为参数传递一个Runnable来处理超时。

这样的事情：

// create a handler to load content
private final Runnable loadContent = new Runnable() {
    @Override
    public void run() {
        /* === CALL HTTP AND PROCESS IT HERE === */
        // remove the timeout runnable after receiving http response
        handler.removeCallbacks(timeoutRunnable);
    }
}
// create a handler to handle timeout
private final Runnable timeoutRunnable = new Runnable() {
    @Override
    public void run() {
        handler.sendEmptyMessage(1);
    }
};
// create a handler to handle the connection
private final Handler handler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        switch (msg.what) {
            case 1: // timeout
                handler.removeCallbacks(timeoutRunnable);
                break;
            /* === OTHER MESSAGES TO HANDLE OTHER SITUATIONS === */
        }
    }
};
// call the connection inside a new thread
private void createNewLoader() {
    // create a delayed runnable with a timeout of 1 second
    handler.postDelayed(timeoutRunnable, 1000);
    // call the content loader
    new Thread(loadContent).start();
}

希望它有所帮助。

Answer 2

请勿使用DefaultHttpClient，Google已将其弃用，停止支持，并建议使用速度更快的URLConnection。超时处理如下：

// Prepare connection
URL url = new URL(sUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(TIMEOUT);
conn.setReadTimeout(TIMEOUT);

为Android创建HttpResponse超时

2 个答案: