IllegalAnnotationsException：domain.NewsletterType沒有無參數默認構造函數

Question

引起：com.sun.xml.bind.v2.runtime.IllegalAnnotationsException：1計數IllegalAnnotationExceptions xxx.tools.newsletter.domain.NewsletterType不有一個無參數的默認構造函數。在公共xxx.tools.newsletter.domain.NewsletterType xxx.tools.newsletter.domain.Newsletter.getType（） 在XXX 在xxx.tools.newsletter.domain.NewsletterType ： 這個問題涉及到以下位置。 tools.newsletter.domain.Newsletter 在公共xxx.tools.newsletter.domain.Newsletter xxx.commons.user.ws.domain.SweepstakeResponse.getReminderEmail（） 在xxx.commons.user.ws.domain.SweepstakeResponse

at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:102) 
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:472) 
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:302) 
at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1140) 
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:154) 
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:121) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:202) 
at javax.xml.bind.ContextFinder.find(ContextFinder.java:363) 
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574) 
at org.jboss.resteasy.plugins.providers.jaxb.JAXBContextWrapper.<init>(JAXBContextWrapper.java:74) 
at org.jboss.resteasy.plugins.providers.jaxb.JAXBContextWrapper.<init>(JAXBContextWrapper.java:99) 
at org.jboss.resteasy.plugins.providers.jaxb.XmlJAXBContextFinder.createContextObject(XmlJAXBContextFinder.java:51) 
at org.jboss.resteasy.plugins.providers.jaxb.AbstractJAXBContextFinder.createContext(AbstractJAXBContextFinder.java:129) 
at org.jboss.resteasy.plugins.providers.jaxb.XmlJAXBContextFinder.findCachedContext(XmlJAXBContextFinder.java:42) 
at org.jboss.resteasy.plugins.providers.jaxb.AbstractJAXBProvider.findJAXBContext(AbstractJAXBProvider.java:52) 
at org.jboss.resteasy.plugins.providers.jaxb.AbstractJAXBProvider.getMarshaller(AbstractJAXBProvider.java:127) 

Answer 1

對於沒有無參數構造函數的類，您可以使用XmlAdapter：

• http://bdoughan.blogspot.com/2010/12/jaxb-and-immutable-objects.html