很難映射..呼叫rest和rest回傳XML格式的回應..幫助Java物件中的類映射（方法）
<aname>
<bname>
<c id="2">
<cname call="yes" text="no" email="yes"/>
<acc>
<accinfo name="ax" addr="USA"/>
</acc>
</c>
</bname>
</aname>
我如何在 Java 類中轉換上面的 xml？謝謝你！
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我分享解決方案：
如果你使用需要依賴
<!-- Jaxb -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
</dependency>
第一堂課。
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlSchemaType;
import javax.xml.bind.annotation.XmlType;
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "bname" })
@XmlRootElement(name = "aname")
public class Aname {
@XmlElement(required = true)
protected Aname.Bname bname;
/**
* Gets the value of the bname property.
*
* @return possible object is {@link Aname.Bname }
*
*/
public Aname.Bname getBname() {
return bname;
}
/**
* Sets the value of the bname property.
*
* @param value allowed object is {@link Aname.Bname }
*
*/
public void setBname(Aname.Bname value) {
this.bname = value;
}
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "c" })
public static class Bname {
@XmlElement(required = true)
protected Aname.Bname.C c;
/**
* Gets the value of the c property.
*
* @return possible object is {@link Aname.Bname.C }
*
*/
public Aname.Bname.C getC() {
return c;
}
/**
* Sets the value of the c property.
*
* @param value allowed object is {@link Aname.Bname.C }
*
*/
public void setC(Aname.Bname.C value) {
this.c = value;
}
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "cname", "acc" })
public static class C {
@XmlElement(required = true)
protected Aname.Bname.C.Cname cname;
@XmlElement(required = true)
protected Aname.Bname.C.Acc acc;
@XmlAttribute(name = "id", required = true)
@XmlSchemaType(name = "unsignedByte")
protected short id;
/**
* Gets the value of the cname property.
*
* @return possible object is {@link Aname.Bname.C.Cname }
*
*/
public Aname.Bname.C.Cname getCname() {
return cname;
}
/**
* Sets the value of the cname property.
*
* @param value allowed object is {@link Aname.Bname.C.Cname }
*
*/
public void setCname(Aname.Bname.C.Cname value) {
this.cname = value;
}
/**
* Gets the value of the acc property.
*
* @return possible object is {@link Aname.Bname.C.Acc }
*
*/
public Aname.Bname.C.Acc getAcc() {
return acc;
}
/**
* Sets the value of the acc property.
*
* @param value allowed object is {@link Aname.Bname.C.Acc }
*
*/
public void setAcc(Aname.Bname.C.Acc value) {
this.acc = value;
}
/**
* Gets the value of the id property.
*
*/
public short getId() {
return id;
}
/**
* Sets the value of the id property.
*
*/
public void setId(short value) {
this.id = value;
}
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = { "accinfo" })
public static class Acc {
@XmlElement(required = true)
protected Aname.Bname.C.Acc.Accinfo accinfo;
/**
* Gets the value of the accinfo property.
*
* @return possible object is {@link Aname.Bname.C.Acc.Accinfo }
*
*/
public Aname.Bname.C.Acc.Accinfo getAccinfo() {
return accinfo;
}
/**
* Sets the value of the accinfo property.
*
* @param value allowed object is {@link Aname.Bname.C.Acc.Accinfo }
*
*/
public void setAccinfo(Aname.Bname.C.Acc.Accinfo value) {
this.accinfo = value;
}
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "")
public static class Accinfo {
@XmlAttribute(name = "name", required = true)
protected String name;
@XmlAttribute(name = "addr", required = true)
protected String addr;
/**
* Gets the value of the name property.
*
* @return possible object is {@link String }
*
*/
public String getName() {
return name;
}
/**
* Sets the value of the name property.
*
* @param value allowed object is {@link String }
*
*/
public void setName(String value) {
this.name = value;
}
/**
* Gets the value of the addr property.
*
* @return possible object is {@link String }
*
*/
public String getAddr() {
return addr;
}
/**
* Sets the value of the addr property.
*
* @param value allowed object is {@link String }
*
*/
public void setAddr(String value) {
this.addr = value;
}
}
}
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "")
public static class Cname {
@XmlAttribute(name = "call", required = true)
protected String call;
@XmlAttribute(name = "text", required = true)
protected String text;
@XmlAttribute(name = "email", required = true)
protected String email;
/**
* Gets the value of the call property.
*
* @return possible object is {@link String }
*
*/
public String getCall() {
return call;
}
/**
* Sets the value of the call property.
*
* @param value allowed object is {@link String }
*
*/
public void setCall(String value) {
this.call = value;
}
/**
* Gets the value of the text property.
*
* @return possible object is {@link String }
*
*/
public String getText() {
return text;
}
/**
* Sets the value of the text property.
*
* @param value allowed object is {@link String }
*
*/
public void setText(String value) {
this.text = value;
}
/**
* Gets the value of the email property.
*
* @return possible object is {@link String }
*
*/
public String getEmail() {
return email;
}
/**
* Sets the value of the email property.
*
* @param value allowed object is {@link String }
*
*/
public void setEmail(String value) {
this.email = value;
}
}
}
}
}
第二課。
import javax.xml.bind.annotation.XmlRegistry;
@XmlRegistry
public class ObjectFactory {
/**
* Create a new ObjectFactory that can be used to create new instances of schema
* derived classes for package: generated
*
*/
public ObjectFactory() {
}
/**
* Create an instance of {@link Aname }
*
*/
public Aname createAname() {
return new Aname();
}
/**
* Create an instance of {@link Aname.Bname }
*
*/
public Aname.Bname createAnameBname() {
return new Aname.Bname();
}
/**
* Create an instance of {@link Aname.Bname.C }
*
*/
public Aname.Bname.C createAnameBnameC() {
return new Aname.Bname.C();
}
/**
* Create an instance of {@link Aname.Bname.C.Acc }
*
*/
public Aname.Bname.C.Acc createAnameBnameCAcc() {
return new Aname.Bname.C.Acc();
}
/**
* Create an instance of {@link Aname.Bname.C.Cname }
*
*/
public Aname.Bname.C.Cname createAnameBnameCCname() {
return new Aname.Bname.C.Cname();
}
/**
* Create an instance of {@link Aname.Bname.C.Acc.Accinfo }
*
*/
public Aname.Bname.C.Acc.Accinfo createAnameBnameCAccAccinfo() {
return new Aname.Bname.C.Acc.Accinfo();
}
}
和主課。
import java.io.StringReader;
import java.text.ParseException;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
public class Test {
static ObjectMapper mapper = new ObjectMapper();
public static void main(String... strings) throws ParseException {
String xml = "<aname> <bname> <c id=\"2\"> <cname call=\"yes\" text=\"no\" email=\"yes\"/> <acc> <accinfo name=\"ax\" addr=\"USA\"/> </acc> </c> </bname> </aname>";
Aname clazz = convertXMLToObject(Aname.class, xml);
try {
System.out.println(mapper.writeValueAsString(clazz));
} catch (JsonProcessingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@SuppressWarnings("unchecked")
public static <T> T convertXMLToObject(Class<T> clazz, String xml)
{
try {
JAXBContext context = JAXBContext.newInstance(clazz);
Unmarshaller um = context.createUnmarshaller();
return (T) um.unmarshal(new StringReader(xml));
}
catch (JAXBException je){
throw new RuntimeException(String.format("Exception while Unmarshaller: %s", je.getMessage()));
}
}
}
結果這個。
{"bname":{"c":{"cname":{"call":"yes","text":"no","email":"yes"},"acc":{"accinfo":{"name":"ax","addr":"USA"}},"id":2}}}
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