Apache Camel，从一条路线调用另一条路线

Question

我在一个骆驼上下文中有两条路线。

<camelContext xmlns="http://camel.apache.org/schema/blueprint">
        <propertyPlaceholder location="classpath:facebook.properties"
            id="properties" />
        <route>
            <from uri="jetty:http://0.0.0.0:8765/getLikes" />
            <to uri="facebook" />
        </route>

        <route>
            <from uri="facebook://userLikes?oAuthAppId={{oAuthAppId}}&amp;oAuthAppSecret={{oAuthAppSecret}}&amp;oAuthAccessToken={{oAuthAccessToken}}" />
            <log message="The message contains ${body}" />
        </route>
    </camelContext>

在第二条路线中，我使用了 facebook 组件。我想打电话给 http://localhost:8765/getLikes 并从第二条路线获得的 facebook 获得所有喜欢。但是第一条路线找不到第二条

Answer 1

您必须为此使用 direct (http://camel.apache.org/direct) or seda (http://camel.apache.org/seda.html) 等组件：

    <camelContext xmlns="http://camel.apache.org/schema/blueprint">
        <propertyPlaceholder location="classpath:facebook.properties"
            id="properties" />
        <route>                
            <from uri="jetty:http://0.0.0.0:8765/getLikes" />
            <to uri="direct:facebook" />
        </route>

        <route>
            <from uri="direct:facebook" />
            <!-- Maybe you need to set some headers here -->
            <to uri="facebook://userLikes?oAuthAppId={{oAuthAppId}}&amp;oAuthAppSecret={{oAuthAppSecret}}&amp;oAuthAccessToken={{oAuthAccessToken}}" />
            <log message="The message contains ${body}" />
        </route>
    </camelContext>

这篇linkhttps://people.apache.org/~dkulp/camel/how-to-use-camel-as-a-http-proxy-between-a-client-and-server.html对你也有帮助。

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