Axis2是Apache的一個開源組件,你可以從Apache Project的網站http://ws.apache.org/axis2/中下載它的zip包,解壓後,你會見到一個lib文件夾,在下例中,你需要導入以下幾個jar包
axiom-api.jar
axis2-kernel.jar
commons-logging.jar
axiom-impl.jar
wsdl4j.jar
XmlSchema.jar
backport-util-concurrent.jar
neethi.jar
commons-httpclient.jar
commons-codec.jar
下面這個是WebService的Impl文件,雖然寫客戶端不需要用到它,客戶端只需知道WebService的地址,並且由此找到最終發佈的wsdl文件,就可以調用這個WebService了。這個類採用了JSR-181(JAX-WS),只需在類中加入一些簡單的anotation,最終的WSDL文件及其它相關XML文件由這個類自動生成
package com.mycompany;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
@WebService(name = "TestService", serviceName = "TestService", targetNamespace = "http://www.mycompany.com")
public class TestService
{
@WebMethod(action = "http://www.mycompany.com/test")
@WebResult(name = "greeting")
public String test(@WebParam(name = "name") String name)
{
return "hello " + name;
}
}
下面這個類,就是客戶端調用WebService的代碼
package javaapplication1;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
public class TestClient
{
private static void invokeWebService()
{
try
{
String soapBindingAddress = "http://localhost:9080/WebService/TestService";
EndpointReference endpointReference = new EndpointReference(soapBindingAddress);
//創建一個OMFactory,下面的namespace、方法與參數均需由它創建
OMFactory factory = OMAbstractFactory.getOMFactory();
//下面創建命名空間,如果你的WebService指定了targetNamespace屬性的話,就要用這個
//對應於@WebService(targetNamespace = "http://www.mycompany.com")
OMNamespace namespace = factory.createOMNamespace("http://www.mycompany.com", "xsd");
//下面創建的是參數對數,對應於@WebParam(name = "name")
//由於@WebParam沒有指定targetNamespace,所以下面創建name參數時,用了null,否則你得賦一個namespace給它
OMElement nameElement = nameElement = factory.createOMElement("name", null);
nameElement.addChild(factory.createOMText(nameElement, "java"));
//下面創建一個method對象,"test"爲方法名
OMElement method = factory.createOMElement("test", namespace);
method.addChild(nameElement);
Options options = new Options();
options.setAction("http://www.mycompany.com/test"); //此處對應於@WebMethod(action = "http://www.mycompany.com/test")
options.setTo(endpointReference);
ServiceClient sender = new ServiceClient();
sender.setOptions(options);
//下面的輸出結果爲<xsd:test xmlns:xsd="http://www.mycompany.com"><name>java</name></xsd:test>
System.out.println(method.toString());
//發送並得到結果,至此,調用成功,並得到了結果
OMElement result = sender.sendReceive(method);
//下面的輸出結果爲<ns2:testResponse xmlns:ns2="http://www.mycompany.com"><greeting>hello java</greeting></ns2:testResponse>
System.out.println(result.toString());
}
catch (AxisFault ex)
{
ex.printStackTrace();
}
}
public static void main(String[] args)
{
TestClient.invokeWebService();
}
}