springspring-securityspring-security-oauth2resttemplatexstream

Resttemplate Oauth2 Spring Userinfo cannot convert xml to java.util.map

I've setup up an Oath2 resttemplate client.When it comes back from authenticating with the remote service,it tries to convert the Userinfo from XML to util.Map and dies with

 o.s.b.a.s.o.r.UserInfoTokenServices - Could not fetch user details: class org.springframework.web.client.UnknownContentTypeException, Could not extract response: no suitable HttpMessageConverter found for response type [interface java.util.Map] and content type [application/xml;charset=UTF-8]

The XML it receives is like :

  "<root><userinfo userid="Userxxx "   lastname="xxx" firstname="xxx" /></root>"

I think there are two options :

  1. Somehow turn off the automatic check Spring does with UserInfoTokenServices

2.add to resttemplate a converter with setMessageConverters

I don't know if the first is possible. As fas as the second goes I've made an XStream MapEntryConverter but Resttemplate wants a HttpMessageConverter.

And why does by default UserInfoTokenServices require a hashmap? Is there an alternative way ?

Solution

  • Generally you don't have to create your own converters, at least for JSON/XML - Spring will configure them based on the libraries available on the classpath.

    For the mentioned formats you usually need the Jackson library. In your case it's the com.fasterxml.jackson.dataformat:jackson-dataformat-xml dependency.