2011-10-15 70 views
11

我想要运行使用HTTPClient线程安全的,异步HTTP请求。我注意到它不尊重我的CONNECTION_TIMEOUT论点。如何在Apache HTTP客户端中设置连接超时?

的代码的ColdFusion/Java的混合体。无论什么样的我供应CONNECTION_TIMEOUT

client = loader.create("org.apache.http.impl.nio.client.DefaultHttpAsyncClient").init(); 
CoreConnectionPNames = loader.create("org.apache.http.params.CoreConnectionPNames"); 

client.getParams() 
    .setIntParameter(JavaCast("string", CoreConnectionPNames.SO_TIMEOUT), 10) 
    .setIntParameter(JavaCast("string", CoreConnectionPNames.CONNECTION_TIMEOUT), 10); 

client.start(); 

request = loader.create("org.apache.http.client.methods.HttpGet").init("http://www.google.com"); 
future = client.execute(request, javacast("null", "")); 

try { 
   response = future.get(); 
} 
catch(e any) {} 

client.getConnectionManager().shutdown(); 

,请求总是返回200 OK。检查下面的输出。

  1. 如何设置一个有效的连接超时?
  2. 不CONNECTION_TIMEOUT做什么?

输出

200 OK http://www.google.com/ 

200 OK http://www.google.com/ 

[snip] 

5 requests using Async Client in: 2308 ms 

回答

3

的文档Apache的HttpClient的是那种参差不齐。在你的安装试试这个(它的工作对我来说与第4版):

HttpConnectionParams.setConnectionTimeout(params, 10000); 
HttpConnectionParams.setSoTimeout(params, 10000); 

... set more parameters here if you want to ... 

SchemeRegistry schemeRegistry = new SchemeRegistry(); 

.. do whatever you ant with the scheme registry here ... 

ThreadSafeClientConnManager connectionManager = new ThreadSafeClientConnManager(params, schemeRegistry); 

client = new DefaultHttpClient(connectionManager, params); 
+0

感谢。我正在尝试你的代码,但需要额外的工作才能将它转换为CF.和我一起裸露。在前两个linse中'HTTPConnectionParams'引用了我需要创建的一个对象。可能是'org.apache.http.params。*'但你提供给'setConnectionTimeout'的'params'参数来自哪里呢?我不能把它扔到那里,否则它会抛出一个'params is undefined'错误...对不起,如果这听起来很傻,但是使用java/CF混合代码是很乏味的。另外,SchemeRegistry对象是否必需,我可以将其忽略吗? – Mohamad

+0

HttpParams params = new BasicHttpParams();这里有一些更多的信息:http://hc.apache.org/httpcomponents-client-ga/tutorial/html/index.html和javadoc的是在这里:http://hc.apache.org/httpcomponents-core-ga /httpcore/apidocs/org/apache/http/params/HttpParams.html – Seth

2

你必须定义使用框架的类方法的HttpParams对象。

 HttpParams params = new BasicHttpParams(); 
     HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1); 
     HttpProtocolParams.setContentCharset(params, HTTP.UTF_8); 
     HttpConnectionParams.setConnectionTimeout(params, 2000); 

     SchemeRegistry registry = new SchemeRegistry(); 
     registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80)); 
     registry.register(new Scheme("https", SSLSocketFactory.getSocketFactory(), 443)); 

     ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry); 

     HttpClient client = DefaultHttpClient(ccm, params); 
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