Junit test for Spring Integration - Payload related issues

[Gary Russell]

Rather than writing code using the messaging APIs directly, you'd be better off using a Messaging gateway instead

public interface myGateway {

    MyResult sendAndReceive(MyEntity myEntity);
}

<int:gateway service-interface="foo.MyGateway" default-request-channel="toRabbit" />

[Amol Nayak]

Look at using a gateway instead. Is there a reason why you want to define your own reply channel explicitly? You can very well rely on the temporary channels created even when you use gateways.

[Amol Nayak]

Whoops, too late

[clouddev]

I tried using the Message Gateway but I get this message when I run my Junit test.

12:50:22,970 DEBUG mework.integration.gateway.GatewayProxyFactoryBean : 134 - Unable to attempt conversion of Message payload types. Component 'myGateway' has no explicit ConversionService reference, and there is no 'integrationConversionService' bean within the context.

[Gary Russell]

The types have to match; otherwise you need a conversion service or transformer, or do the conversion in the amqp gateway.

If you are expecting a JSON String, then the return type on the gateway must be String.

If you want the string converted to an object, json to object conversion needs a hint as to what object you want it converted to. You can do this with the JsonMessageConverter and a custom ClassMapper, or use a <json-to-object-transformer/> in the reply path.