WSO2 ESB 返回一串 json 结构

Question

I'm building an API Resource and return a string of json structures

enter image description here

An error ： wso2 com.ctc.wstx.exc.wstxunexpectedcharexception: unexpected character '{' (code 123) in prolog; expected '<' at [row,col {unknown-source}]: [1,1]

Answer 1

enter image description here

next time please try to use formatted text here, not screenshots. You suppose to make the question easy to read for us

unexpected character '{' (code 123) in prolog; expected '<' at [row,col {unknown-source}]:

See the service annotation, it says @Produces Application.XML. So the service returns the Content-Type header as "application/xml", but the content is JSON.

The exception is saying that the ESB is trying to parse your returned XML (the service claims the content is XML) but it is not correct format