java Apache Camel http 到 http 路由（有可能吗？）
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Apache Camel http to http routing (Is it possible?)
提问by kazanaki
I am starting now with Camel. I have seen the http4 component for http clients and the jetty component for http servers.
我现在从骆驼开始。我已经看到了 http 客户端的 http4 组件和 http 服务器的 jetty 组件。
I have seen several examples that use one or the other. I would like to know if it is possible to combine them together.
我见过几个使用其中一个的例子。我想知道是否可以将它们组合在一起。
Example
例子
from("jetty:http://0.0.0.0:8080/myapp/myservice")
.to("http4://www.google.com");
This would make camel a simple http based router/proxy. Web browsers would hit the camel URL and instead get google. (Google is just an example, I have a real POST based service that I want to use)
这将使骆驼成为一个简单的基于 http 的路由器/代理。网络浏览器会点击骆驼网址，而不是谷歌。（谷歌只是一个例子，我有一个真正的基于 POST 的服务，我想使用）
Is this route possible? Should I research Camel or do I need a different software framework for this? In the future I would also need to add transformations/filters in between.
这条路线可以吗？我应该研究 Camel 还是为此需要不同的软件框架？将来我还需要在两者之间添加转换/过滤器。
I have tried it and got a nullpointer exception
我试过了，得到了一个空指针异常
[qtp757856402-14] SendProcessor DEBUG >>>> Endpoint[http4://www.google.com] Exchange[Message: [Body is instance of java.io.InputStream]]
[qtp757856402-14] DefaultErrorHandler DEBUG Failed delivery for exchangeId: ID-IT12-53265-1302683969823-0-1. On delivery attempt: 0 caught: java.lang.NullPointerException
[qtp757856402-14] DefaultErrorHandler ERROR Failed delivery for exchangeId: ID-IT12-53265-1302683969823-0-1. Exhausted after delivery attempt: 1 caught: java.lang.NullPointerException
java.lang.NullPointerException
回答by Claus Ibsen
You need to bridge the endpoint.
您需要桥接端点。
from("jetty:http://0.0.0.0:8080/myapp/myservice")
.to("http4://www.google.com?bridgeEndpoint=true&throwExceptionOnFailure=false");
