Ich versuche, ein Objekt über REST-Webdienst zu übergeben. Im Folgenden sind meine Klassen erklärt die Funktionalität, die ich mit einigen Beispielcodes benötigen.javax.xml.bind.JAXBException: Klasse *** noch eine Superklasse ist in diesem Kontext bekannt
Erholung Web Service Class Methode
@POST
@Path("/find")
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces({MediaType.APPLICATION_JSON})
public Response getDepartments(){
Response response = new Response();
try {
response.setCode(MessageCode.SUCCESS);
response.setMessage("Department Names");
Department dept = new Department("12", "Financial");
response.setPayload(dept);
} catch (Exception e) {
response.setCode(MessageCode.ERROR);
response.setMessage(e.getMessage());
e.printStackTrace();
}
return response;
}
Response Class
import java.io.Serializable;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
public class Response implements Serializable{
private static final long serialVersionUID = 1L;
public enum MessageCode {
SUCCESS, ERROR, UNKNOWN
}
private MessageCode code;
private String message;
private Object payload;
public MessageCode getCode() {
return code;
}
public void setCode(MessageCode code) {
this.code = code;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public Object getPayload() {
return payload;
}
public void setPayload(Object payload) {
this.payload = payload;
}
}
Abteilung Klasse
@XmlRootElement
public class Department implements java.io.Serializable {
private String deptNo;
private String deptName;
public Department() {
}
public Department(String deptNo, String deptName) {
this.deptNo = deptNo;
this.deptName = deptName;
}
public String getDeptNo() {
return this.deptNo;
}
public void setDeptNo(String deptNo) {
this.deptNo = deptNo;
}
public String getDeptName() {
return this.deptName;
}
public void setDeptName(String deptName) {
this.deptName = deptName;
}
}
Wenn ich die Methode getDepartments in der restlichen Web-Service-Klasse anrufe, werden folgende Ausnahmen zurückgegeben. Aber wenn ich den Typ Objekt der Nutzlast zu Abteilung in der Antwortklasse ändern, gibt es die JSON-Antwort korrekt zurück. Aber da ich diese Antwortklasse für verschiedene Arten von Klassen verwenden muss, kann ich die Nutzlast nicht auf einen Klassentyp umlenken. Kann mir bitte jemand in dieser Angelegenheit helfen?
Stack Trace
Dec 27, 2012 9:34:18 PM com.sun.jersey.spi.container.ContainerResponse logException
SEVERE: Mapped exception to response: 500 (Internal Server Error)
javax.ws.rs.WebApplicationException: javax.xml.bind.MarshalException
- with linked exception:
[javax.xml.bind.JAXBException: class Department nor any of its super class is known to this context.]
at com.sun.jersey.core.provider.jaxb.AbstractRootElementProvider.writeTo(AbstractRootElementProvider.java:159)
at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:306)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1437)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:699)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:945)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: javax.xml.bind.MarshalException
- with linked exception:
[javax.xml.bind.JAXBException: class Department nor any of its super class is known to this context.]
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:323)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:177)
at com.sun.jersey.json.impl.BaseJSONMarshaller.marshallToJSON(BaseJSONMarshaller.java:103)
at com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider.writeTo(JSONRootElementProvider.java:136)
at com.sun.jersey.core.provider.jaxb.AbstractRootElementProvider.writeTo(AbstractRootElementProvider.java:157)
... 23 more
Caused by: javax.xml.bind.JAXBException: class Department nor any of its super class is known to this context.
at com.sun.xml.bind.v2.runtime.XMLSerializer.reportError(XMLSerializer.java:250)
at com.sun.xml.bind.v2.runtime.XMLSerializer.reportError(XMLSerializer.java:265)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:657)
at com.sun.xml.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(SingleElementNodeProperty.java:156)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:344)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsSoleContent(XMLSerializer.java:597)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeRoot(ClassBeanInfoImpl.java:328)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:498)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:320)
... 27 more
Caused by: javax.xml.bind.JAXBException: class Department nor any of its super class is known to this context.
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getBeanInfo(JAXBContextImpl.java:611)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:652)
... 33 more
Sie sollten die bereitgestellte Antwort akzeptieren, da es gut funktioniert. – Daniel
@Shanaka akzeptieren eine der bereitgestellten Antworten, #Bogdan Antwort ist ziemlich gut. Wähle eine beste Antwort und hilf anderen, weise zu wählen – Jeevanantham