need to use simple to read and printout file content, but does not work!

[Wang Yan]

I want to use simple to read and print out file content. but it reads file
and only print out file name instead of content.
why ? Did I did something wrong? Any suggestion and ideas are more than
welcome!

from(SOAP_ENDPOINT + "&dataFormat=CXF_MESSAGE")
.log(LoggingLevel.INFO, "##### SOAP REQUEST ##### ${body}")
.to("language:simple:wsdl/dummyResponse.xml").convertBodyTo(String.class)
.log(LoggingLevel.INFO, "##### SOAP RESPONSE ##### ${body}");