Mule ESB-在同一流程中配置多个组件

Question

I am getting an error message when trying to add a Spring component to a Mule Flow. This should be a common user-case, but I wasn't able to find the right documentation or examples. Thanks in advance.

The follow was the original configuration and works fine:

<flow name="ApplicationEndpoint">
    <inbound-endpoint address="server:port/JSONAPI/"/>
    <jersey:resources>
        <component>
            <spring-object bean="myJerseyService"/>     
        </component>            
    </jersey:resources>

    <catch-exception-strategy doc:name="Catch Exception Strategy">
        <flow-ref name="ErrorHandling" doc:name="Flow Reference"/>
    </catch-exception-strategy>         
</flow>

I simply want to add a new component to do some post-processing. When I try this, it doesn't work:

<flow name="ApplicationEndpoint">
    <inbound-endpoint address="server:port/JSONAPI/"/>
    <jersey:resources>
        <component>
            <spring-object bean="myJerseyService"/>     
        </component>            
    </jersey:resources>
    <component>
      <spring-object bean="postProcessor"/>
    <component>
    <catch-exception-strategy doc:name="Catch Exception Strategy">
        <flow-ref name="ErrorHandling" doc:name="Flow Reference"/>
    </catch-exception-strategy>         
</flow>

Where "postProcessor" maps elsewhere in the config as a spring bean.

The error message I get is:

org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid content was found starting with element 'component'. One of '{" http://www.mulesoft.org/schema/mule/core ":abstract-lifecycle-adapter-factory, " http://www.mulesoft.org/schema/mule/core ":binding}' is expected.

Answer 1

The above error clearly shows that the tag <component> is not closed..

for example, it should be in following format :-

 <component>
    <spring-object bean="postProcessor"/>
 </component>

where you need to end the tag like the following :- </component>

One more thing ... I tried to run your code, but due to server:port/JSONAPI/ configured in your inbound-endpoint address it gives a error saying the xml is malformed

So I modified your code as following and it ran successfully :-

<flow name="ApplicationEndpoint">
    <inbound-endpoint address="http://localhost:8189/JSONAPI"/>
    <jersey:resources>
        <component>
            <spring-object bean="myJerseyService"/>     
        </component>            
    </jersey:resources>
    <component>
      <spring-object bean="postProcessor"/>
    </component>
    <catch-exception-strategy doc:name="Catch Exception Strategy">
        <flow-ref name="ErrorHandling" doc:name="Flow Reference"/>
    </catch-exception-strategy>         
</flow>

So, you can now use it and modify as per your requirement