我正在使用一个基于IDL定义生成代码的库 . 能够在各种语言(Java,C和C)中使用通用枚举非常棒,但这些生成的枚举似乎与JAX-WS不相符 .
基本上,主要枚举“超级”类有两个成员:序数和名称 . 它看起来与此类似(注意:这是在第三方库中,并且不是JavaBean友好的):
public class CustomEnum {
int _ordinal;
String _name;
public CustomEnum(int ordinal, String name) {
this._ordinal = ordinal;
this._name = name;
}
public int ordinal() {
return _ordinal;
}
public String name() {
return _name;
}
}
那么在生成的基于IDL定义的代码中看起来与此类似(使用Day作为示例 - 但实际上我有大约50个'枚举'来扩展CustomEnum,所以我想要一个让我无法使用多个枚举的副本,例如IDL生成的类型和java.lang.enum):
public class Day extends CustomEnum {
public static final Day Sunday = new Day(0, "Sunday");
public static final Day Monday = new Day(1, "Monday");
public static final Day Tuesday = new Day(2, "Tuesday");
public static final Day Wednesday = new Day(3, "Wednesday");
public static final Day Thursday = new Day(4, "Thursday");
public static final Day Friday = new Day(5, "Friday");
public static final Day Saturday = new Day(6, "Saturday");
public Day(int ordinal, String name) {
super(ordinal, name);
}
}
请注意,我也不想乱用/重新排列/注释这个类,因为它是生成的代码 .
所以,现在我想做的是能够在JAX-WS @WebMethod中将这个'Day'枚举用作@WebParam . 这是我希望能够做的一个非常简单的例子:
import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
@WebService
public class EnumEndpoint {
@WebMethod
public boolean callEndpoint(
@XmlJavaTypeAdapter(CustomEnumAdapter.class) Day day) {
System.out.println(day.ordinal() + " " + day.name());
return false;
}
}
我希望通过编写一个像这样的XmlJavaTypeAdapter:
import java.lang.reflect.Type;
import javax.xml.bind.annotation.adapters.XmlAdapter;
public class CustomEnumAdapter extends XmlAdapter<CustomEnum, EnumBean>
implements Type {
@Override
public EnumBean unmarshal(CustomEnum v) throws Exception {
EnumBean mine = new EnumBean(v.ordinal(), v.name());
return mine;
}
@Override
public CustomEnum marshal(EnumBean v) throws Exception {
CustomEnum customEnum = new CustomEnum(v.getOrdinal(),v.getName());
return customEnum;
}
}
EnumBean的样子:
public class EnumBean {
int ordinal;
String name;
public EnumBean(int ordinal, String name) {
this.ordinal = ordinal;
this.name = name;
}
public int getOrdinal() {
return ordinal;
}
public void setOrdinal(int ordinal) {
this.ordinal = ordinal;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
但是当我声明一个像这样的服务器 endpoints 时:
import javax.xml.ws.Endpoint;
public class Server {
/**
* @param args
*/
public static void main(String[] args) {
Endpoint.publish("http://0.0.0.0:7979/enum", new EnumEndpoint());
}
}
我收到此错误:
Jun 10, 2012 3:29:21 PM com.sun.xml.internal.ws.model.RuntimeModeler getRequestWrapperClass
INFO: Dynamically creating request wrapper Class test.jaxws.CallEndpoint
Exception in thread "main" javax.xml.ws.WebServiceException: java.lang.IllegalArgumentException: value class test.CustomEnumAdapter
at com.sun.xml.internal.ws.model.WrapperBeanGenerator.createRequestWrapperBean(WrapperBeanGenerator.java:249)
at com.sun.xml.internal.ws.model.RuntimeModeler.getRequestWrapperClass(RuntimeModeler.java:280)
at com.sun.xml.internal.ws.model.RuntimeModeler.processDocWrappedMethod(RuntimeModeler.java:674)
at com.sun.xml.internal.ws.model.RuntimeModeler.processMethod(RuntimeModeler.java:612)
at com.sun.xml.internal.ws.model.RuntimeModeler.processClass(RuntimeModeler.java:401)
at com.sun.xml.internal.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:240)
at com.sun.xml.internal.ws.server.EndpointFactory.createSEIModel(EndpointFactory.java:312)
at com.sun.xml.internal.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:178)
at com.sun.xml.internal.ws.api.server.WSEndpoint.create(WSEndpoint.java:456)
at com.sun.xml.internal.ws.api.server.WSEndpoint.create(WSEndpoint.java:475)
at com.sun.xml.internal.ws.transport.http.server.EndpointImpl.createEndpoint(EndpointImpl.java:213)
at com.sun.xml.internal.ws.transport.http.server.EndpointImpl.publish(EndpointImpl.java:143)
at com.sun.xml.internal.ws.spi.ProviderImpl.createAndPublishEndpoint(ProviderImpl.java:102)
at javax.xml.ws.Endpoint.publish(Endpoint.java:170)
at test.Server.main(Server.java:11)
Caused by: java.lang.IllegalArgumentException: value class test.CustomEnumAdapter
at com.sun.xml.internal.ws.org.objectweb.asm.ClassWriter.newConstItem(ClassWriter.java:893)
at com.sun.xml.internal.ws.org.objectweb.asm.AnnotationWriter.visit(AnnotationWriter.java:185)
at com.sun.xml.internal.ws.model.WrapperBeanGenerator.createBeanImage(WrapperBeanGenerator.java:111)
at com.sun.xml.internal.ws.model.WrapperBeanGenerator.createRequestWrapperBean(WrapperBeanGenerator.java:245)
... 14 more
我在这里错过了什么?我试图直接使用'Day',但由于它没有默认构造函数并且没有得到/设置友好,这也不起作用 . 有小费吗?
2 回答
EnumBean
如果
EnumBean
是改编的类,那么它需要一个默认的构造函数 .CustomEnumAdapter
当扩展
XmlAdapter
时,改编的类应该作为第一个参数出现 . 由于您要映射的参数是Day
类型,因此您需要将XmlAdapter
指定为Day
作为绑定类型 .TEST CLIENT
根据我建议的更改,我在WebLogic 12.1.1中运行了您的服务,并使用内置测试客户端,我得到了以下内容:
Service Request
Service Response
听起来因为webmethod参数上的@XmlJavaTypeAdapter注释在运行时失败 - 如何在请求包装器中包装请求参数
Day
以及包装器消息类型中的布尔响应,只需将其声明为@XmlRootElement
并声明适配器@XmlJavaTypeAdapter(CustomEnumAdapter.class)
. 这样,您的@Webservice声明就没有@XmlJavaTypeAdapter注释 .