【XML】将String格式的XML文件转化成JAVA实体类

1.问题：

如何将String类型的XML转化成JAVA实体类？

2.源代码：

public class TestXML {    @SuppressWarnings("unchecked")    public static void main(String[] args) {        String xmlStr="<object>\n" +                "  <int name=\"start\">1</int>\n" +                "  <string name=\"order\">receiveDate</string>\n" +                "  <int name=\"desc\">1</int>\n" +                "  <int name=\"fid\">1</int>\n" +                "  <int name=\"norefreshSid\">0</int>\n" +                "  <int name=\"total\">20</int>\n" +                "  <string name=\"sessionEnable\">0</string>\n" +                "</object>";        System.out.println(xmlStr);        /*JAXBContext应用入口，用于xml和java的绑定*/        JAXBContext context=null;        try {            context=JAXBContext.newInstance(Objectz.class);            /*Unmarshaller接口，将xml反序列化为java对象*/            Unmarshaller unmarshaller= context.createUnmarshaller();            System.out.println(unmarshaller);            StringReader stringReader=new StringReader(xmlStr);            System.out.println(stringReader);            System.out.println("unmarshaller:"+unmarshaller.unmarshal(stringReader));            Objectz objectz=(Objectz)unmarshaller.unmarshal(stringReader);            System.out.println(objectz);        } catch (JAXBException e) {            e.printStackTrace();        }    }}

3.截图：

4.总结：

这里说，不需要元素，但是却获得了本地却获得了object；请问怎么解决这个异常？

附：报错代码：

javax.xml.bind.UnmarshalException: 意外的元素 (uri:"", local:"object")。所需元素为(none)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext.handleEvent(UnmarshallingContext.java:726)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:247)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:242)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.Loader.reportUnexpectedChildElement(Loader.java:109)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext$DefaultRootLoader.childElement(UnmarshallingContext.java:1131)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext._startElement(UnmarshallingContext.java:556)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext.startElement(UnmarshallingContext.java:538)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.SAXConnector.startElement(SAXConnector.java:153)    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509)    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:380)    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:614)    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3135)    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:880)    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:118)    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:243)    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:214)    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:157)    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:214)    at com.fxrj.email.test.TestXML.main(TestXML.java:42)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)