我有两个相同的电话:
String msg1 = exchange.getIn().getBody(String.class);
String msg2 = exchange.getIn().getBody(String.class);
在msg1中,我得到了正确的期望值,但msg2是一个空字符串。我没有设置 Out 消息,因此交换输入消息应保持不变。请解释为什么会这样。
骆驼路线:
<camelContext xmlns="http://camel.apache.org/schema/spring">
<route id="route1">
<from uri="timer://myTimer?period=2000" />
<setBody>
<simple>Hello World ${header.firedTime}</simple>
</setBody>
<process ref="messageProcessor" />
<to uri="http://localhost:8090"/>
</route>
<route id="route2">
<from uri="jetty://http://localhost:8090" />
<process ref="messageProcessor" />
</route>
</camelContext>
处理器仅包含上面的2个语句。 route1中的处理是正确的,但是在route2中我得到了描述的行为:第一次调用 - 有效字符串,第二次调用 - 空字符串。所以我想也许它与HttpMessage转换有关。
答案 0 :(得分:10)
From http://camel.apache.org/jetty.html
Jetty is stream based, which means the input it receives is submitted to Camel as a stream. That means you will only be able to read the content of the stream once.
Just convert the input in a String before use it twice or more times
<route id="route2">
<from uri="jetty://http://localhost:8090" />
<convertBodyTo type="String" />
<process ref="messageProcessor" />
</route>