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我正在尝试创建一个将对象转换为 JaxbRepresentation 的示例测试应用程序。但是当我尝试运行它时,它给了我一个错误。
Main.java 文件
package test_jaxb;
import org.restlet.Server;
import org.restlet.data.Protocol;
public class Main {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws Exception {
Server helloServer = new Server(Protocol.HTTP, 8111,
TestResource.class);
helloServer.start();
}
}
TestResource.java 文件
package test_jaxb;
import org.restlet.ext.jaxb.JaxbRepresentation;
import org.restlet.representation.Representation;
import org.restlet.resource.ResourceException;
import org.restlet.resource.ServerResource;
public class TestResource extends ServerResource{
@Override
protected Representation get() throws ResourceException {
SampleResponse res = new SampleResponse();
res.setMsg("Success");
res.setStatusCode(0);
JaxbRepresentation<SampleResponse> representation = new JaxbRepresentation<SampleResponse>(res);
return representation;
}
}
SampleResponse.java 文件
package test_jaxb;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name="Response")
public class SampleResponse {
private int statusCode;
private String msg;
@XmlElement(name="Msg")
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
@XmlElement(name="StatusCode")
public int getStatusCode() {
return statusCode;
}
public void setStatusCode(int statusCode) {
this.statusCode = statusCode;
}
}
当我在服务器上运行它时,它会抛出以下错误:
WARNING: Problem creating Marshaller
javax.xml.bind.JAXBException: "test_jaxb" doesnt contain ObjectFactory.class or jaxb.index
at com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:119)
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:132)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:299)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:372)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:337)
at org.restlet.ext.jaxb.JaxbRepresentation.getContext(JaxbRepresentation.java:83)
at org.restlet.ext.jaxb.internal.Marshaller$1.initialValue(Marshaller.java:68)
at org.restlet.ext.jaxb.internal.Marshaller$1.initialValue(Marshaller.java:64)
at java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:141)
at java.lang.ThreadLocal.get(ThreadLocal.java:131)
at org.restlet.ext.jaxb.internal.Marshaller.getMarshaller(Marshaller.java:163)
at org.restlet.ext.jaxb.internal.Marshaller.marshal(Marshaller.java:216)
at org.restlet.ext.jaxb.JaxbRepresentation.write(JaxbRepresentation.java:527)
at org.restlet.representation.WriterRepresentation.write(WriterRepresentation.java:104)
at org.restlet.engine.http.connector.Connection.writeMessageBody(Connection.java:873)
at org.restlet.engine.http.connector.Connection.writeMessage(Connection.java:818)
at org.restlet.engine.http.connector.ServerConnection.writeMessage(ServerConnection.java:334)
at org.restlet.engine.http.connector.Connection.writeMessages(Connection.java:954)
at org.restlet.engine.http.connector.BaseServerHelper.handleOutbound(BaseServerHelper.java:201)
at org.restlet.engine.http.connector.BaseHelper.handleNextOutbound(BaseHelper.java:425)
at org.restlet.engine.http.connector.BaseServerHelper.handleInbound(BaseServerHelper.java:174)
at org.restlet.engine.http.connector.BaseHelper.handleNextInbound(BaseHelper.java:418)
at org.restlet.engine.http.connector.Connection.readMessages(Connection.java:695)
at org.restlet.engine.http.connector.Controller$2.run(Controller.java:95)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
May 16, 2011 7:05:12 AM org.restlet.ext.jaxb.internal.Marshaller getMarshaller
WARNING: Unable to locate marshaller.
May 16, 2011 7:05:12 AM org.restlet.ext.jaxb.JaxbRepresentation write
WARNING: JAXB marshalling error caught.
javax.xml.bind.JAXBException: Unable to locate marshaller.
at org.restlet.ext.jaxb.internal.Marshaller.getMarshaller(Marshaller.java:166)
at org.restlet.ext.jaxb.internal.Marshaller.marshal(Marshaller.java:216)
at org.restlet.ext.jaxb.JaxbRepresentation.write(JaxbRepresentation.java:527)
at org.restlet.representation.WriterRepresentation.write(WriterRepresentation.java:104)
at org.restlet.engine.http.connector.Connection.writeMessageBody(Connection.java:873)
at org.restlet.engine.http.connector.Connection.writeMessage(Connection.java:818)
at org.restlet.engine.http.connector.ServerConnection.writeMessage(ServerConnection.java:334)
at org.restlet.engine.http.connector.Connection.writeMessages(Connection.java:954)
at org.restlet.engine.http.connector.BaseServerHelper.handleOutbound(BaseServerHelper.java:201)
at org.restlet.engine.http.connector.BaseHelper.handleNextOutbound(BaseHelper.java:425)
at org.restlet.engine.http.connector.BaseServerHelper.handleInbound(BaseServerHelper.java:174)
at org.restlet.engine.http.connector.BaseHelper.handleNextInbound(BaseHelper.java:418)
at org.restlet.engine.http.connector.Connection.readMessages(Connection.java:695)
at org.restlet.engine.http.connector.Controller$2.run(Controller.java:95)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
May 16, 2011 7:05:12 AM org.restlet.ext.jaxb.internal.Marshaller$1 initialValue
WARNING: Problem creating Marshaller
javax.xml.bind.JAXBException: "failure" doesnt contain ObjectFactory.class or jaxb.index
at com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:119)
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:132)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:299)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:372)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:337)
at org.restlet.ext.jaxb.JaxbRepresentation.getContext(JaxbRepresentation.java:83)
at org.restlet.ext.jaxb.internal.Marshaller$1.initialValue(Marshaller.java:68)
at org.restlet.ext.jaxb.internal.Marshaller$1.initialValue(Marshaller.java:64)
at java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:141)
at java.lang.ThreadLocal.get(ThreadLocal.java:131)
at org.restlet.ext.jaxb.internal.Marshaller.getMarshaller(Marshaller.java:163)
at org.restlet.ext.jaxb.internal.Marshaller.marshal(Marshaller.java:216)
at org.restlet.ext.jaxb.JaxbRepresentation.write(JaxbRepresentation.java:535)
at org.restlet.representation.WriterRepresentation.write(WriterRepresentation.java:104)
at org.restlet.engine.http.connector.Connection.writeMessageBody(Connection.java:873)
at org.restlet.engine.http.connector.Connection.writeMessage(Connection.java:818)
at org.restlet.engine.http.connector.ServerConnection.writeMessage(ServerConnection.java:334)
at org.restlet.engine.http.connector.Connection.writeMessages(Connection.java:954)
at org.restlet.engine.http.connector.BaseServerHelper.handleOutbound(BaseServerHelper.java:201)
at org.restlet.engine.http.connector.BaseHelper.handleNextOutbound(BaseHelper.java:425)
at org.restlet.engine.http.connector.BaseServerHelper.handleInbound(BaseServerHelper.java:174)
at org.restlet.engine.http.connector.BaseHelper.handleNextInbound(BaseHelper.java:418)
at org.restlet.engine.http.connector.Connection.readMessages(Connection.java:695)
at org.restlet.engine.http.connector.Controller$2.run(Controller.java:95)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
May 16, 2011 7:05:12 AM org.restlet.ext.jaxb.internal.Marshaller getMarshaller
WARNING: Unable to locate marshaller.
May 16, 2011 7:05:12 AM org.restlet.engine.http.connector.Connection writeMessage
WARNING: Exception while writing the message body.
java.io.IOException: Unable to locate marshaller.
at org.restlet.ext.jaxb.JaxbRepresentation.write(JaxbRepresentation.java:539)
at org.restlet.representation.WriterRepresentation.write(WriterRepresentation.java:104)
at org.restlet.engine.http.connector.Connection.writeMessageBody(Connection.java:873)
at org.restlet.engine.http.connector.Connection.writeMessage(Connection.java:818)
at org.restlet.engine.http.connector.ServerConnection.writeMessage(ServerConnection.java:334)
at org.restlet.engine.http.connector.Connection.writeMessages(Connection.java:954)
at org.restlet.engine.http.connector.BaseServerHelper.handleOutbound(BaseServerHelper.java:201)
at org.restlet.engine.http.connector.BaseHelper.handleNextOutbound(BaseHelper.java:425)
at org.restlet.engine.http.connector.BaseServerHelper.handleInbound(BaseServerHelper.java:174)
at org.restlet.engine.http.connector.BaseHelper.handleNextInbound(BaseHelper.java:418)
at org.restlet.engine.http.connector.Connection.readMessages(Connection.java:695)
at org.restlet.engine.http.connector.Controller$2.run(Controller.java:95)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
May 16, 2011 7:05:12 AM org.restlet.engine.http.connector.ServerConnection writeMessage
INFO: An exception occured while writing the response
java.io.IOException: Unable to locate marshaller.
at org.restlet.ext.jaxb.JaxbRepresentation.write(JaxbRepresentation.java:539)
at org.restlet.representation.WriterRepresentation.write(WriterRepresentation.java:104)
at org.restlet.engine.http.connector.Connection.writeMessageBody(Connection.java:873)
at org.restlet.engine.http.connector.Connection.writeMessage(Connection.java:818)
at org.restlet.engine.http.connector.ServerConnection.writeMessage(ServerConnection.java:334)
at org.restlet.engine.http.connector.Connection.writeMessages(Connection.java:954)
at org.restlet.engine.http.connector.BaseServerHelper.handleOutbound(BaseServerHelper.java:201)
at org.restlet.engine.http.connector.BaseHelper.handleNextOutbound(BaseHelper.java:425)
at org.restlet.engine.http.connector.BaseServerHelper.handleInbound(BaseServerHelper.java:174)
at org.restlet.engine.http.connector.BaseHelper.handleNextInbound(BaseHelper.java:418)
at org.restlet.engine.http.connector.Connection.readMessages(Connection.java:695)
at org.restlet.engine.http.connector.Controller$2.run(Controller.java:95)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
请人帮忙!!!
最佳答案
在我的情况下,我可以通过在与 JAXB 注释类相同的包文件夹中添加一个名为“jaxb.index”的文件来解决此问题。在该文件中列出带注释的类的简单、非限定名称。
例如我的文件/MyProject/src/main/java/com/example/services/types/jaxb.index只是一行(因为我只有一个 JAXB 类型的类):
ServerDiagContent
指的是类 com.example.services.types.ServerDiagContent
关于java - JaxbRepresentation 给出错误 "doesnt contain ObjectFactory.class or jaxb.index",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6017146/
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