Java HttpResponse&；Android超时

我希望我的设备在5秒后放弃http连接。 但是我的代码不起作用。。。关闭网络时，我从未收到任何超时消息。 就像如果设备仍然尝试连接，尽管取消超时

你有主意吗？ 我是否在尝试捕捉正确的异常

谢谢

        try 
        {
            HttpClient httpclient = new DefaultHttpClient();       
                HttpPost httppost = new HttpPost(URL);
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

                HttpParams httpParameters = new BasicHttpParams();
                HttpConnectionParams.setConnectionTimeout(httpParameters, 5000);

                HttpResponse response = httpclient.execute(httppost);

                if (response.getStatusLine().getStatusCode() < 400) 
                {
                        ... //data processing
                } 
                else 
                {
                    errorMsgId = R.string.http_site_error;                        
                }
        } 
        catch (ConnectTimeoutException e)
        {
            Toast.makeText(this, "Network timeout reached!", Toast.LENGTH_SHORT).show();
            Log.e("+++++++++++++++++ ","Network timeout reached!"); 
        }

试试看
{
HttpClient HttpClient=新的DefaultHttpClient（）；
HttpPost HttpPost=新的HttpPost（URL）；
setEntity（新的UrlEncodedFormEntity（nameValuePairs））；
HttpParams httpParameters=新的BasicHttpParams（）；
HttpConnectionParams.setConnectionTimeout（httpParameters，5000）；
HttpResponse response=httpclient.execute（httppost）；
if（response.getStatusLine（）.getStatusCode（）<400）
{
…//数据处理
} 
其他的
{
errorMsgId=R.string.http_site_错误；
}
} 
捕获（ConnectTimeoutException e）
{
Toast.makeText（这是“已达到网络超时！”，Toast.LENGTH_SHORT.show（）；
Log.e（“++++++++++”，“已达到网络超时！”）；
}

也许我遗漏了什么，但是您在哪里将设置超时的参数与您创建的

HttpClient

相关联？你不应该这样做吗：

HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 5000);
HttpConnectionParams.setSoTimeout(httpParameters, 5000);
...
HttpClient httpclient = new DefaultHttpClient(httpParameters);

/**
 * Check availability of web service
 * 
 * @param host Address of host
 * @param seconds Timeout in seconds
 * @return Availability of host
 */
public static boolean checkIfURLExists(String host, int seconds)
{
    HttpURLConnection httpUrlConn;
    try
    {
        httpUrlConn = (HttpURLConnection) new URL(host).openConnection();

        // Set timeouts in milliseconds
        httpUrlConn.setConnectTimeout(seconds * 1000);
        httpUrlConn.setReadTimeout(seconds * 1000);

        // Print HTTP status code/message for your information.
        System.out.println("Response Code: " + httpUrlConn.getResponseCode());
        System.out.println("Response Message: "
                + httpUrlConn.getResponseMessage());

        return (httpUrlConn.getResponseCode() == HttpURLConnection.HTTP_OK);
    }
    catch (Exception e)
    {
        System.out.println("Error: " + e.getMessage());
        return false;
    }
}

---

也许我遗漏了什么，但是您在哪里将设置超时的参数与您创建的

HttpClient

相关联？你不应该这样做吗：

HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 5000);
HttpConnectionParams.setSoTimeout(httpParameters, 5000);
...
HttpClient httpclient = new DefaultHttpClient(httpParameters);

/**
 * Check availability of web service
 * 
 * @param host Address of host
 * @param seconds Timeout in seconds
 * @return Availability of host
 */
public static boolean checkIfURLExists(String host, int seconds)
{
    HttpURLConnection httpUrlConn;
    try
    {
        httpUrlConn = (HttpURLConnection) new URL(host).openConnection();

        // Set timeouts in milliseconds
        httpUrlConn.setConnectTimeout(seconds * 1000);
        httpUrlConn.setReadTimeout(seconds * 1000);

        // Print HTTP status code/message for your information.
        System.out.println("Response Code: " + httpUrlConn.getResponseCode());
        System.out.println("Response Message: "
                + httpUrlConn.getResponseMessage());

        return (httpUrlConn.getResponseCode() == HttpURLConnection.HTTP_OK);
    }
    catch (Exception e)
    {
        System.out.println("Error: " + e.getMessage());
        return false;
    }
}

---

您可以使用以下内容：

HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 5000);
HttpConnectionParams.setSoTimeout(httpParameters, 5000);
...
HttpClient httpclient = new DefaultHttpClient(httpParameters);

/**
 * Check availability of web service
 * 
 * @param host Address of host
 * @param seconds Timeout in seconds
 * @return Availability of host
 */
public static boolean checkIfURLExists(String host, int seconds)
{
    HttpURLConnection httpUrlConn;
    try
    {
        httpUrlConn = (HttpURLConnection) new URL(host).openConnection();

        // Set timeouts in milliseconds
        httpUrlConn.setConnectTimeout(seconds * 1000);
        httpUrlConn.setReadTimeout(seconds * 1000);

        // Print HTTP status code/message for your information.
        System.out.println("Response Code: " + httpUrlConn.getResponseCode());
        System.out.println("Response Message: "
                + httpUrlConn.getResponseMessage());

        return (httpUrlConn.getResponseCode() == HttpURLConnection.HTTP_OK);
    }
    catch (Exception e)
    {
        System.out.println("Error: " + e.getMessage());
        return false;
    }
}

---

您可以使用以下内容：

HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 5000);
HttpConnectionParams.setSoTimeout(httpParameters, 5000);
...
HttpClient httpclient = new DefaultHttpClient(httpParameters);

/**
 * Check availability of web service
 * 
 * @param host Address of host
 * @param seconds Timeout in seconds
 * @return Availability of host
 */
public static boolean checkIfURLExists(String host, int seconds)
{
    HttpURLConnection httpUrlConn;
    try
    {
        httpUrlConn = (HttpURLConnection) new URL(host).openConnection();

        // Set timeouts in milliseconds
        httpUrlConn.setConnectTimeout(seconds * 1000);
        httpUrlConn.setReadTimeout(seconds * 1000);

        // Print HTTP status code/message for your information.
        System.out.println("Response Code: " + httpUrlConn.getResponseCode());
        System.out.println("Response Message: "
                + httpUrlConn.getResponseMessage());

        return (httpUrlConn.getResponseCode() == HttpURLConnection.HTTP_OK);
    }
    catch (Exception e)
    {
        System.out.println("Error: " + e.getMessage());
        return false;
    }
}

---

好的，明白了，如果这能帮助其他人：

                    HttpClient httpclient = new DefaultHttpClient();
                    final HttpParams httpParams = httpclient.getParams();
                    HttpConnectionParams.setConnectionTimeout(httpParams, 5000);
                    HttpConnectionParams.setSoTimeout(httpParams, 5000);
                    HttpPost httppost = new HttpPost(URL);
                    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
                    HttpResponse response = httpclient.execute(httppost);

---

好的，明白了，如果这能帮助其他人：

                    HttpClient httpclient = new DefaultHttpClient();
                    final HttpParams httpParams = httpclient.getParams();
                    HttpConnectionParams.setConnectionTimeout(httpParams, 5000);
                    HttpConnectionParams.setSoTimeout(httpParams, 5000);
                    HttpPost httppost = new HttpPost(URL);
                    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
                    HttpResponse response = httpclient.execute(httppost);

---

这也是我发现这些例子时所想的，但似乎是那样的……这也是我发现这些例子时所想的，但似乎是那样的……太好了。。。但如果可能的话，我最好在我的HttpResponse连接命令中包含一个超时，而不是两次连接，因为我很确定我的老板会注意到这一点，并且不会喜欢它：（很好，是的……但是如果可能的话，我最好在我的HttpResponse连接命令中包含一个超时，而不是两次连接，因为我很确定我的老板会注意到这一点，并且不会喜欢它：(