HttpClient4.X Invalid use of SingleClientConnManager: connection still allocated问题
The project uses httpclient4.1 development. In the case of multi-threading, the exception is reported
Invalid use of SingleClientConnManager: connection still allocated
From a foreign post, httpclient uses SingleClientConnManager by default, but it is best to use ThreadSafeClientConnManager in a concurrent environment. code show as below:
HttpClient client = new DefaultHttpClient(new ThreadSafeClientConnManager());
HttpGet httpGet = null;
InputStream in = null;
try {
httpGet = new HttpGet(url);
HttpResponse response = client.execute(httpGet);
HttpEntity responseEntity = response.getEntity();
if (responseEntity != null) {
in = response.getEntity().getContent();
return EntityUtils.toByteArray(responseEntity);
}
} finally {
if (httpGet != null) {
httpGet.abort ();
}
IOUtils.closeQuietly(in);
}
return null;
In this way, exceptions can be avoided, thank you for this post abroad
http://old.nabble.com/HttpClient-instance-management-td24185137.html
http超时处理：
使用是apache的HttpClient：
DefaultHttpClient:
请求超时
httpclient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 60000);
读取超时
httpclient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 60000);
HttpClient
HttpClient httpClient=new HttpClient();
链接超时
httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(60000);
读取超时
httpClient.getHttpConnectionManager().getParams().setSoTimeout(60000)