Java HTTP客户端请求设置超时

Question

我想设置一个请求超时。 这是代码，到目前为止。

final HttpClient httpclient = HttpClients.createDefault();
final HttpPost httppost = new HttpPost(address);
httppost.setHeader("Accept", "text/xml");
httppost.setHeader("Content-type", "application/xml; charset=UTF-8");
httppost.setEntity(new StringEntity(body));
final HttpResponse response = httpclient.execute(httppost);
final HttpEntity entity = response.getEntity();

我试过了（不起作用，继续加载并忽略超时）

// set the connection timeout value to 30 seconds (30000 milliseconds)
final HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, 30000);
client = new DefaultHttpClient(httpParams);

和（这抛出java.lang.UnsupportedOperationException ）

httpclient = HttpClients.createDefault();
httpclient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 3000);
httpclient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 6000);

还有其他方法可以设置音调吗？ 我真的不需要响应，因此像异步请求之类的东西也可以完成工作。

Answer 1

Apache的HttpClient具有两个单独的超时：一个等待建立TCP连接的等待时间的超时，以及一个等待下一个数据字节等待的时间的独立超时。

HttpConnectionParams.setConnectionTimeout()用于建立TCP连接，而HttpConnectionParams.setSoTimeout()在等待后续数据字节时使用。

// Creating default HttpClient
HttpClient httpClient = new DefaultHttpClient();
final HttpParams httpParams = httpClient.getParams();

// Setting timeouts
HttpConnectionParams.setConnectionTimeout(httpParams, 5000);
HttpConnectionParams.setSoTimeout(httpParams, 30000);

// Rest of your code
final HttpPost httppost = new HttpPost(address);
httppost.setHeader("Accept", "text/xml");
httppost.setHeader("Content-type", "application/xml; charset=UTF-8");
httppost.setEntity(new StringEntity(body));
final HttpResponse response = httpclient.execute(httppost);
final HttpEntity entity = response.getEntity();