Apache Axis2 Changing the Content-type of the Response

There are a couple of mechanisms that can be used to change the content-type of the response in Apache Axis2. They are,

• Using HTTP Content Negotiation. Please refer HTTP Content Negotiation with Apache Axis2 for details.
• Changing the content-type of the response explicitly by setting it to the response message context as follows,
  

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1.  MessageContext messageContext = MessageContext.getCurrentMessageContext();  
2. OperationContext operationContext = messageContext.getOperationContext();  
3. MessageContext outMessageContext = operationContext.getMessageContext(  
4.            WSDL2Constants.MESSAGE_LABEL_OUT);  
5. // responseFormat is the content type of the outgoing message  
6. outMessageContext.setProperty(Constants.Configuration.MESSAGE_TYPE, responseFormat);  

      MessageContext messageContext = MessageContext.getCurrentMessageContext();
     OperationContext operationContext = messageContext.getOperationContext();
     MessageContext outMessageContext = operationContext.getMessageContext(
                WSDL2Constants.MESSAGE_LABEL_OUT);
     // responseFormat is the content type of the outgoing message
     outMessageContext.setProperty(Constants.Configuration.MESSAGE_TYPE, responseFormat);

• Using the DynamicResponse module (Axis2 module). This modules allows you to change the content type of the response by sending it a query parameter named response. The module.xml of this module maps such query parameter values to content types. You could see this module in action on mooshup.com. Try accessing http://mooshup.com/services/system/version/getVersion this will give you a pox response. Now simply try http://mooshup.com/services/system/version/getVersion?response=soap this will give you a SOAP response. You can grab a mar distribution of this here. The source code for the module can be found here.