Back Forum Reply New

Reading EMS message as TextMessage instead of String

hi,

i am new to springs so might be a basic query.
In our application we are reading the incoming EMS message as a string.
These are the configuration settings done:

lt;bean id=quot;instrumentListenerquot; class=quot;org..jms.listener.adapter.Me  ssageListenerAdapterquot;gt;       lt;property name=quot;delegatequot;gt;     lt;ref bean=quot;instrumentMdpquot; /gt;   lt;/propertygt;   lt;property name=quot;defaultListenerMethodquot;gt;     lt;valuegt;processInstrumentlt;/valuegt;   lt;/propertygt;      lt;/beangt;

Now i want to read the incoming message as a TextMessage so that i can read the header properties of the incoming message which i cannot read when the message comes as string.

I tried changing the properties like:

lt;bean id=quot;instrumentListenerquot; class=quot;org..jms.listener.adapter.Me  ssageListenerAdapterquot;gt;    lt;property name=quot;delegatequot;gt;     lt;ref bean=quot;instrumentMdpquot; /gt;   lt;/propertygt;   lt;property name=quot;defaultListenerMethodquot;gt;     lt;valuegt;processInstrumentlt;/valuegt;   lt;/propertygt;   
lt;property name=quot;messageConverterquot;gt;     lt;valuegt;nulllt;/valuegt;   lt;/propertygt;  lt;/beangt;

It does not work and gives a runtime error saying:
Cannot resolve reference to bean 'instrumentListener' while setting bean property 'messageListener'; nested exception is org..beans.factory.BeanCreationExce  ption: Error creating bean with name 'instrumentListener' defined in class path resource [Instrument-Response.xml]: Initialization of bean failed; nested exception is org..beans.TypeMismatchException: Failed to convert property value of type [java.lang.String] to required type [org..jms.support.converter.MessageC  onverter] for property 'messageConverter'; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [java.lang.String] to required type [org..jms.support.converter.MessageC  onverter] for property 'messageConverter': no matching editors or conversion strategy found.

Can somebody please provide inputs for the same.

Have you tried passing in a reference to a message converter (e.g. SimpleMessageConverter) rather than null to the MessageListenerAdapter bean??

You also need to ensure that a method has been defined in your MDP that takes a TextMessage as as parameter....
¥
Back Forum Reply New