java axis web service

编写 java调用web service的客户端比较简单，其中webservice为上一篇gsoap创建的server。

package clientTest;
import java.rmi.RemoteException;  

import javax.xml.namespace.QName;  
import javax.xml.rpc.ServiceException;  
import javax.xml.rpc.ParameterMode;
import javax.xml.rpc.encoding.XMLType;

import org.apache.axis.client.Call;
import org.apache.axis.client.Service; 
public class ClientTest
{
    public static void main(String[] args) {  
        try {  
            String endpoint = "http://localhost:8080";   
            Service service = new Service();   
            Call call = (Call)service.createCall();   
            call.setTargetEndpointAddress(endpoint);      
  
            call.setOperationName(new QName(
                    "urn:calculator", "add"));   
            call.addParameter("a",XMLType.SOAP_DOUBLE,ParameterMode.IN);
            call.addParameter("b", XMLType.SOAP_DOUBLE, ParameterMode.IN);
            call.setReturnClass(Double.class);   
            Double temp = (Double)call.invoke(new Object[]{2,2});   //传入的参数（a、b），返回的类型为Double
            System.out.println("result: " + temp);  
        } catch (ServiceException e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        } catch (RemoteException e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
        }  
    }  
}

所对应的wsdl文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<definitions name="calculator"
 targetNamespace="urn:calculator"
 xmlns:tns="urn:calculator"
 xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
 xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:ns="urn:calculator"
 xmlns:SOAP="http://schemas.xmlsoap.org/wsdl/soap/"
 xmlns:MIME="http://schemas.xmlsoap.org/wsdl/mime/"
 xmlns:DIME="http://schemas.xmlsoap.org/ws/2002/04/dime/wsdl/"
 xmlns:WSDL="http://schemas.xmlsoap.org/wsdl/"
 xmlns="http://schemas.xmlsoap.org/wsdl/">

<types>

 <schema targetNamespace="urn:calculator"
  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  xmlns:ns="urn:calculator"
  xmlns="http://www.w3.org/2001/XMLSchema"
  elementFormDefault="unqualified"
  attributeFormDefault="unqualified">
  <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
 </schema>

</types>

<message name="addRequest">
 <part name="a" type="xsd:double"/><!-- ns__add::a -->
 <part name="b" type="xsd:double"/><!-- ns__add::b -->
</message>

<message name="addResponse">
 <part name="result" type="xsd:double"/><!-- ns__add::result -->
</message>

<message name="subRequest">
 <part name="a" type="xsd:double"/><!-- ns__sub::a -->
 <part name="b" type="xsd:double"/><!-- ns__sub::b -->
</message>

<message name="subResponse">
 <part name="result" type="xsd:double"/><!-- ns__sub::result -->
</message>

<message name="sqrtRequest">
 <part name="a" type="xsd:double"/><!-- ns__sqrt::a -->
</message>

<message name="sqrtResponse">
 <part name="result" type="xsd:double"/><!-- ns__sqrt::result -->
</message>

<portType name="calculatorPortType">
 <operation name="add">
  <documentation>Service definition of function ns__add</documentation>
  <input message="tns:addRequest"/>
  <output message="tns:addResponse"/>
 </operation>
 <operation name="sub">
  <documentation>Service definition of function ns__sub</documentation>
  <input message="tns:subRequest"/>
  <output message="tns:subResponse"/>
 </operation>
 <operation name="sqrt">
  <documentation>Service definition of function ns__sqrt</documentation>
  <input message="tns:sqrtRequest"/>
  <output message="tns:sqrtResponse"/>
 </operation>
</portType>

<binding name="calculator" type="tns:calculatorPortType">
 <SOAP:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
 <operation name="add">
  <SOAP:operation style="rpc" soapAction=""/>
  <input>
     <SOAP:body use="encoded" namespace="urn:calculator" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
  </input>
  <output>
     <SOAP:body use="encoded" namespace="urn:calculator" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
  </output>
 </operation>
 <operation name="sub">
  <SOAP:operation style="rpc" soapAction=""/>
  <input>
     <SOAP:body use="encoded" namespace="urn:calculator" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
  </input>
  <output>
     <SOAP:body use="encoded" namespace="urn:calculator" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
  </output>
 </operation>
 <operation name="sqrt">
  <SOAP:operation style="rpc" soapAction=""/>
  <input>
     <SOAP:body use="encoded" namespace="urn:calculator" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
  </input>
  <output>
     <SOAP:body use="encoded" namespace="urn:calculator" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
  </output>
 </operation>
</binding>

<service name="calculator">
 <documentation>gSOAP 2.8.14 generated service definition</documentation>
 <port name="calculator" binding="tns:calculator">
  <SOAP:address location="http://localhost:8080"/>
 </port>
</service>

</definitions>

程序结构如图：

添加的jar下载地址为java_webservice(注意文件类型，javarpc-api独立一个，其余的均在axis压缩包中)。