Question

以下是我试图忽略异常的流程。

<flow name="demoFlow1" doc:name="demoFlow1">
    <http:inbound-endpoint exchange-pattern="request-response" address="http://localhost:5050/demo" doc:name="HTTP"/>
    <set-payload value="#['sucess']" doc:name="Set Payload"/>
    <catch-exception-strategy when="#[!exception.causedBy(org.mule.api.registry.ResolverException)]" doc:name="Catch Exception Strategy">
        <logger message="Exception in flow" level="INFO" doc:name="Logger"/>
    </catch-exception-strategy>
</flow>

我收到以下错误

org.mule.api.construct.FlowConstructInvalidException: **Flow exception listener contains and exception strategy that doesn't handle all request, Perhaps there's an exception strategy with a when attribute set but it's not part of a catch exception strategy**
    at org.mule.construct.AbstractFlowConstruct.validateConstruct(AbstractFlowConstruct.java:286)
    at org.mule.construct.AbstractPipeline.validateConstruct(AbstractPipeline.java:227)
    at org.mule.construct.AbstractFlowConstruct$1.onTransition(AbstractFlowConstruct.java:108)
    at org.mule.construct.AbstractFlowConstruct$1.onTransition(AbstractFlowConstruct.java:103)
    at org.mule.lifecycle.AbstractLifecycleManager.invokePhase(AbstractLifecycleManager.java:138)
    at org.mule.construct.FlowConstructLifecycleManager.fireInitialisePhase(FlowConstructLifecycleManager.java:78)
    at org.mule.construct.AbstractFlowConstruct.initialise(AbstractFlowConstruct.java:102)

你可以在mule 3.4.2版本中帮我解决这个问题吗？

Answer 1

使用选择异常，然后将该catch异常放入其中。

<flow name="demoFlow1" doc:name="demoFlow1">
    <http:inbound-endpoint exchange-pattern="request-response" address="http://localhost:5050/demo" doc:name="HTTP"/>
    <set-payload value="#['sucess']" doc:name="Set Payload"/>
    <choice-exception-strategy doc:name="Choice Exception Strategy">
         <catch-exception-strategy when="#[!exception.causedBy(org.mule.api.registry.ResolverException)]" doc:name="Catch Exception Strategy">
             <logger message="Exception in flow" level="INFO" doc:name="Logger"/>
         </catch-exception-strategy>
    </choice-exception-strategy>
</flow>

不确定是否需要通用捕获异常，但上述工作在3.6。如果是这种情况，请在下面执行此操作（使用通用catch异常 - 不'when'属性）

<flow name="demoFlow1" doc:name="demoFlow1">
    <http:inbound-endpoint exchange-pattern="request-response" address="http://localhost:5050/demo" doc:name="HTTP"/>
    <set-payload value="#['sucess']" doc:name="Set Payload"/>
    <choice-exception-strategy doc:name="Choice Exception Strategy">
         <catch-exception-strategy when="#[!exception.causedBy(org.mule.api.registry.ResolverException)]" doc:name="Catch Exception Strategy">
             <logger message="Exception in flow" level="INFO" doc:name="Logger"/>
         </catch-exception-strategy>
         <catch-exception-strategy doc:name="Catch Exception Strategy">
             <logger message="Exception in flow" level="INFO" doc:name="Logger"/>
         </catch-exception-strategy>
    </choice-exception-strategy>
</flow>

Answer 2

Pbris这个基于异常的表达式（当条件时）

when="#[!exception.causedBy(org.mule.api.registry.ResolverException)]

它必须仅用于您在编写catch-exception-strategy

的选择异常策略中

<catch-exception-strategy when="#[!exception.causedBy(org.mule.api.registry.ResolverException)]" doc:name="Catch Exception Strategy"> <logger message="Exception in flow" level="INFO" doc:name="Logger"/> </catch-exception-strategy>

这段代码在删除when条件之前不会工作同样的事情将在选择异常策略中工作，而不删除when条件

从mule esb文档中引用

Answer 3

我遇到了同样的问题。在Choice异常中使用catch异常，这将起作用

无法忽略Catch异常策略中的异常

3 个答案: