验证CXF HttpAsyncClient使用use.async.http.conduit上下文属性 [英] Verifying CXF HttpAsyncClient use of use.async.http.conduit contextual property

问题描述

我试图利用CXF异步HTTP客户端传输，通过设置use.async.http.conduit属性，如<详细href=\"http://stackoverflow.com/questions/20497003/using-cxf-httpasyncclient-through-setting-use-async-http-conduit-contextual-prop\">this螺纹，并通过这CXF文章建议。结果

I am trying to make use of the CXF asynchronous HTTP client transport, through setting the "use.async.http.conduit" property, as detailed in this thread, and recommended by this CXF article.

我这样做，用下面的code：结果

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I do that using the following code:

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Client client = ClientProxy.getClient(wsClient);
client.getRequestContext().put("use.async.http.conduit", Boolean.TRUE);

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碰巧的是，我的Web服务调用超时（可能是由于一些环境问题的网络）和我的客户异常包含（摘录）：结果

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As it happens, my web service call is timing out (probably due to some environmental network issue), and my client exception contains (extract):

java.net.SocketTimeoutException: Read timed out
    at java.net.SocketInputStream.read(SocketInputStream.java:129)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
    at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:698)
    at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:641)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1218)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:379)
    at org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.getResponseCode(URLConnectionHTTPConduit.java:260)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1513)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1486)
    at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1305)
    at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
    at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:623)

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的异常堆栈之上表明 java.net.HttpURLConnection中的类是仍在使用，而且基于CXF文档的设置还没有生效的。

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The exception stack above suggests that the java.net.HttpURLConnection class is still in use and that based on the CXF documentation the setting has not taken effect.

我试图找出是如何确保use.async.http.conduit已生效，即是有一个特定的行为进行检验，或特定的日志配置，我可以启用该客户端会肯定地告诉我在Apache HttpAsyncClient在使用？

What I am trying to figure out is how to ensure that the "use.async.http.conduit" has taken effect, i.e. is there a particular behaviour that can be tested, or a particular log config that I can enable on the client that would undoubtedly tell me the Apache HttpAsyncClient is in use?

非常感谢：）

推荐答案

我刚刚找到了答案，我的问题，通过的 CXF文档和的有用博客。搜索结果
因此，首先如何识别默认的Java客户端传输或Apache的异步传输客户端是否被使用：搜索结果
除了code我使用（见问题）

I just found the answer to my question, inspired by more reading of the CXF documentation, and of a useful blog.

So first how to identify whether the default Java transport client or the Apache async transport client is used:

In addition to the code I was using (see question)

Client client = ClientProxy.getClient(wsClient);
client.getRequestContext().put("use.async.http.conduit", Boolean.TRUE);

我添加以下内容：

I added the following:

HTTPConduit conduit = (HTTPConduit)client.getConduit();
System.out.println(conduit.getClass().getName());

这最初产生

org.apache.cxf.transport.http.URLConnectionHTTPConduit

这跟我的设置不能正常工作。这时候，阅读更多CXF文件后，我意识到我缺少的依赖（库在我的类路径）： CXF-RT-运输-HTTP-HC 。所以我增加了图书馆在我的Maven依赖关系：

which told me the setting was not working. That is when, after reading more of the CXF documentation, I realised I was missing a dependency (library on my classpath): cxf-rt-transports-http-hc. So I added the library in my maven dependencies:

<dependency>
    <groupId>org.apache.cxf</groupId>
    <artifactId>cxf-rt-transports-http-hc</artifactId>
    <version>${cxf.version}</version>
</dependency>

然后重试我的code，输出现在来代替：

then retried my code, and the output was now instead:

org.apache.cxf.transport.http.asyncclient.AsyncHTTPConduit

瞧！

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