这一次,我们写一个非常简单的示例来演示。
服务端接口定义:
package ch03.ts;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;
import javax.xml.ws.Holder;
@WebService
public interface HelloWord {
@WebMethod
void sayHello(@WebParam(name="name") String name,
@WebParam(name="wh",mode=WebParam.Mode.INOUT) Holder<String> wh,
@WebParam(name="hf",mode=WebParam.Mode.OUT) Holder<String> hf);
}
参数的@WebParam注解中,没有定义mode,表示默认为WebParam.Mode.IN,代表输入参数。如果mode为WebParam.Mode.INOUT,代表既是输入参数也是输出参数。如果mode为WebParam.Mode.OUT,代表是输出参数。
另外 ,我们再研究一下Holder类型:javax.xml.ws.Holder。Holder类型专门用于mode为INOUT和OUT的情况。在java中,传参是按值传递的,也就是mode为IN的正常情况,而INOUT与OUT是要按引用传递的,所以我们需要使用Holder类型来变通实现它。Holder对象的引用指向堆空间中的一个Holder实例,该引用的副本作为参数传递给方法,那么该引用与副本引用同时指向堆空间中的Holder对象,然后该Holder对象中的值,也就是真实使用的对象的引用。这样就变向实现了引用传递,真实对象的引用与传参后真实对象的引用是同一个引用,不是副本。(这是看网络文章的总结,不一定正确!!将就着看吧!!!呵呵)
服务实现:
package ch03.ts;
import javax.jws.WebService;
import javax.xml.ws.Holder;
@WebService(endpointInterface = "ch03.ts.HelloWord")
public class HelloWordImpl implements HelloWord {
@Override
public void sayHello(String name, Holder<String> wh, Holder<String> hf) {
System.out.println(name + "!" + wh.value);
wh.value = "你们好";
hf.value = "同学们";
}
}
服务发布:
package ch03.ts;
import javax.xml.ws.Endpoint;
public class HelloWordPublisher {
public static void main(String[] args) {
Endpoint.publish("http://localhost:7654/ts", new HelloWordImpl());
}
}
通过如下代码生成包装的document样式客户端:
% wsimport -keep -p hw1 http://localhost:7654/ts?wsdl
客户端代码如下:
package hw1;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;
import javax.xml.bind.annotation.XmlSeeAlso;
import javax.xml.ws.Action;
import javax.xml.ws.Holder;
import javax.xml.ws.RequestWrapper;
import javax.xml.ws.ResponseWrapper;
/**
* This class was generated by the JAX-WS RI.
* JAX-WS RI 2.2.4-b01
* Generated source version: 2.2
*/
@WebService(name = "HelloWord", targetNamespace = "http://ts.ch03/")
@XmlSeeAlso({
ObjectFactory.class
})
public interface HelloWord {
/**
* @param wh
* @param name
* @param hf
*/
@WebMethod
@RequestWrapper(localName = "sayHello", targetNamespace = "http://ts.ch03/",
className = "hw1.SayHello")
@ResponseWrapper(localName = "sayHelloResponse", targetNamespace = "http://ts.ch03/",
className = "hw1.SayHelloResponse")
@Action(input = "http://ts.ch03/HelloWord/sayHelloRequest",
output = "http://ts.ch03/HelloWord/sayHelloResponse")
public void sayHello(
@WebParam(name = "name", targetNamespace = "")
String name,
@WebParam(name = "wh", targetNamespace = "", mode = WebParam.Mode.INOUT)
Holder<String> wh,
@WebParam(name = "hf", targetNamespace = "", mode = WebParam.Mode.OUT)
Holder<String> hf);
}
package hw1;
import java.net.MalformedURLException;
import java.net.URL;
import javax.xml.namespace.QName;
import javax.xml.ws.Service;
import javax.xml.ws.WebEndpoint;
import javax.xml.ws.WebServiceClient;
import javax.xml.ws.WebServiceException;
import javax.xml.ws.WebServiceFeature;
/**
* This class was generated by the JAX-WS RI.
* JAX-WS RI 2.2.4-b01
* Generated source version: 2.2
*/
@WebServiceClient(name = "HelloWordImplService", targetNamespace = "http://ts.ch03/",
wsdlLocation = "http://localhost:7654/ts?wsdl")
public class HelloWordImplService extends Service {
private final static URL HELLOWORDIMPLSERVICE_WSDL_LOCATION;
private final static WebServiceException HELLOWORDIMPLSERVICE_EXCEPTION;
private final static QName HELLOWORDIMPLSERVICE_QNAME = new QName("http://ts.ch03/",
"HelloWordImplService");
static {
URL url = null;
WebServiceException e = null;
try {
url = new URL("http://localhost:7654/ts?wsdl");
} catch (MalformedURLException ex) {
e = new WebServiceException(ex);
}
HELLOWORDIMPLSERVICE_WSDL_LOCATION = url;
HELLOWORDIMPLSERVICE_EXCEPTION = e;
}
public HelloWordImplService() {
super(__getWsdlLocation(), HELLOWORDIMPLSERVICE_QNAME);
}
public HelloWordImplService(WebServiceFeature... features) {
super(__getWsdlLocation(), HELLOWORDIMPLSERVICE_QNAME, features);
}
public HelloWordImplService(URL wsdlLocation) {
super(wsdlLocation, HELLOWORDIMPLSERVICE_QNAME);
}
public HelloWordImplService(URL wsdlLocation, WebServiceFeature... features) {
super(wsdlLocation, HELLOWORDIMPLSERVICE_QNAME, features);
}
public HelloWordImplService(URL wsdlLocation, QName serviceName) {
super(wsdlLocation, serviceName);
}
public HelloWordImplService(URL wsdlLocation, QName serviceName,
WebServiceFeature... features) {
super(wsdlLocation, serviceName, features);
}
/**
* @return
* returns HelloWord
*/
@WebEndpoint(name = "HelloWordImplPort")
public HelloWord getHelloWordImplPort() {
return super.getPort(new QName("http://ts.ch03/", "HelloWordImplPort"),
HelloWord.class);
}
/**
* @param features
* A list of {@link javax.xml.ws.WebServiceFeature} to configure on the proxy.
* Supported features not in the <code>features</code> parameter will
* have their default values.
* @return
* returns HelloWord
*/
@WebEndpoint(name = "HelloWordImplPort")
public HelloWord getHelloWordImplPort(WebServiceFeature... features) {
return super.getPort(new QName("http://ts.ch03/", "HelloWordImplPort"),
HelloWord.class, features);
}
private static URL __getWsdlLocation() {
if (HELLOWORDIMPLSERVICE_EXCEPTION!= null) {
throw HELLOWORDIMPLSERVICE_EXCEPTION;
}
return HELLOWORDIMPLSERVICE_WSDL_LOCATION;
}
}
package hw1;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlType;
/**
* <p>Java class for sayHello complex type.
* <p>The following schema fragment specifies the expected content contained within this class.
* <pre>
* <complexType name="sayHello">
* <complexContent>
* <restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
* <sequence>
* <element name="name" type="{http://www.w3.org/2001/XMLSchema}string" minOccurs="0"/>
* <element name="wh" type="{http://www.w3.org/2001/XMLSchema}string" minOccurs="0"/>
* </sequence>
* </restriction>
* </complexContent>
* </complexType>
* </pre>
*/
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "sayHello", propOrder = {
"name",
"wh"
})
public class SayHello {
protected String name;
protected String wh;
/**
* 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 wh property.
* @return
* possible object is
* {@link String }
*/
public String getWh() {
return wh;
}
/**
* Sets the value of the wh property.
* @param value
* allowed object is
* @link String }
*/
public void setWh(String value) {
this.wh = value;
}
}
package hw1;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlType;
/**
* <p>Java class for sayHelloResponse complex type.
* <p>The following schema fragment specifies the expected content contained within this class.
* <pre>
* <complexType name="sayHelloResponse">
* <complexContent>
* <restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
* <sequence>
* <element name="wh" type="{http://www.w3.org/2001/XMLSchema}string" minOccurs="0"/>
* <element name="hf" type="{http://www.w3.org/2001/XMLSchema}string" minOccurs="0"/>
* </sequence>
* </restriction>
* </complexContent>
* </complexType>
* </pre>
*/
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "sayHelloResponse", propOrder = {
"wh",
"hf"
})
public class SayHelloResponse {
protected String wh;
protected String hf;
/**
* Gets the value of the wh property.
* @return
* possible object is
* {@link String }
*/
public String getWh() {
return wh;
}
/**
* Sets the value of the wh property.
* @param value
* allowed object is
* {@link String }
*/
public void setWh(String value) {
this.wh = value;
}
/**
* Gets the value of the hf property.
* @return
* possible object is
* {@link String }
*/
public String getHf() {
return hf;
}
/**
* Sets the value of the hf property.
* @param value
* allowed object is
* {@link String }
*/
public void setHf(String value) {
this.hf = value;
}
}
package hw1;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.annotation.XmlElementDecl;
import javax.xml.bind.annotation.XmlRegistry;
import javax.xml.namespace.QName;
/**
* This object contains factory methods for each
* Java content interface and Java element interface
* generated in the hw1 package.
* <p>An ObjectFactory allows you to programatically
* construct new instances of the Java representation
* for XML content. The Java representation of XML
* content can consist of schema derived interfaces
* and classes representing the binding of schema
* type definitions, element declarations and model
* groups. Factory methods for each of these are
* provided in this class.
*
*/
@XmlRegistry
public class ObjectFactory {
private final static QName _SayHello_QNAME = new QName("http://ts.ch03/", "sayHello");
private final static QName _SayHelloResponse_QNAME = new QName("http://ts.ch03/",
"sayHelloResponse");
/**
* Create a new ObjectFactory that can be used to create new instances of
* schema derived classes for package: hw1
*/
public ObjectFactory() {}
/**
* Create an instance of {@link SayHelloResponse }
*/
public SayHelloResponse createSayHelloResponse() {
return new SayHelloResponse();
}
/**
* Create an instance of {@link SayHello }
*/
public SayHello createSayHello() {
return new SayHello();
}
/**
* Create an instance of {@link JAXBElement }{@code <}{@link SayHello }{@code >}}
*/
@XmlElementDecl(namespace = "http://ts.ch03/", name = "sayHello")
public JAXBElement<SayHello> createSayHello(SayHello value) {
return new JAXBElement<SayHello>(_SayHello_QNAME,
SayHello.class, null, value);
}
/**
* Create an instance of {@link JAXBElement }{@code <}
* {@link SayHelloResponse }{@code >}}
*/
@XmlElementDecl(namespace = "http://ts.ch03/", name = "sayHelloResponse")
public JAXBElement<SayHelloResponse> createSayHelloResponse(SayHelloResponse value) {
return new JAXBElement<SayHelloResponse>(_SayHelloResponse_QNAME,
SayHelloResponse.class, null, value);
}
}
package-info.java:
@javax.xml.bind.annotation.XmlSchema(namespace = "http://ts.ch03/")
package hw1;
客户端调用代码:
package hw1;
import javax.xml.ws.Holder;
public class HelloWordClient1 {
public static void main(String[] args) {
String name = "老师";
Holder<String> wh = new Holder<String>();
wh.value = "你好";
Holder<String> hf = new Holder<String>();
HelloWordImplService service = new HelloWordImplService();
HelloWord port = service.getPort(HelloWord.class);
port.sayHello(name, wh, hf);
System.out.println(hf.value + "," + wh.value);
}
}
请注意HelloWordClient1.java与HelloWord.java代码,看看与下一篇同一个示例的非包装的document样式客户端代码有什么不同。