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java的call基于document/literal的webservice

WSDL

<definitions
     name="HelloWorld"
     targetNamespace="http://xmlns.oracle.com/HelloWorld"
     xmlns="http://schemas.xmlsoap.org/wsdl/"
     xmlns:plnk="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
     xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
     xmlns:client="http://xmlns.oracle.com/HelloWorld"
    >
    <types>
        <schema attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://xmlns.oracle.com/HelloWorld"
             xmlns="http://www.w3.org/2001/XMLSchema">
            <element name="HelloWorldProcessRequest">
                <complexType>
                    <sequence>
                        <element name="input" type="string"/>
                    </sequence>
                </complexType>
            </element>
            <element name="HelloWorldProcessResponse">
                <complexType>
                    <sequence>
                        <element name="result" type="string"/>
                    </sequence>
                </complexType>
            </element>
        </schema>
    </types>
    <message name="HelloWorldRequestMessage">
        <part name="payload" element="client:HelloWorldProcessRequest"/>
    </message>
    <message name="HelloWorldResponseMessage">
        <part name="payload" element="client:HelloWorldProcessResponse"/>
    </message>
    <portType name="HelloWorld">
        <operation name="process">
            <input message="client:HelloWorldRequestMessage"/>
            <output message="client:HelloWorldResponseMessage"/>
        </operation>
    </portType>
    <binding name="HelloWorldBinding" type="client:HelloWorld">
        <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
        <operation name="process">
            <soap:operation style="document" soapAction="process"/>
            <input>
                <soap:body use="literal"/>
            </input>
            <output>
                <soap:body use="literal"/>
            </output>
        </operation>
    </binding>
    <service name="HelloWorld">
        <port name="HelloWorldPort" binding="client:HelloWorldBinding">
            <soap:address location="http://robin:9700/orabpel/default/HelloWorld/1.0"/>
        </port>
    </service>
  <plnk:partnerLinkType name="HelloWorld">
    <plnk:role name="HelloWorldProvider">
      <plnk:portType name="client:HelloWorld"/>
    </plnk:role>
  </plnk:partnerLinkType>

</definitions>


Java 代码：
import java.net.MalformedURLException;
import java.net.URL;
import java.rmi.RemoteException;
import java.util.Vector;

import javax.xml.namespace.QName;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.rpc.ServiceException;

import org.apache.axis.client.Call;
import org.apache.axis.constants.Style;
import org.apache.axis.message.SOAPBodyElement;
import org.apache.xml.serialize.DOMSerializerImpl;
import org.apache.xml.serialize.OutputFormat;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class BPELServiceTest {
      //service的命名空间
    static final String ns = "http://xmlns.oracle.com/HelloWorld";

    public static void main(String args[]){
        Call call = null;
        try {
            call = createCall();
            Vector rtn = (Vector) call.invoke(createRequest());
            parse(rtn);
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (RemoteException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ParserConfigurationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (FactoryConfigurationError e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

      /*       * 创建Call对象，对设置相关属性，注意：其中的属性应该是通过分析WSDL文件由程序动态获得来赋值，       * 这里全部简化为静态赋值       */
    static Call createCall() throws MalformedURLException, ServiceException{
        org.apache.axis.client.Service s = new org.apache.axis.client.Service();
        Call call = (Call) s.createCall();
        call.setTargetEndpointAddress(new URL("http://robin:9700/orabpel/default/HelloWorld/1.0"));
        call.setSOAPActionURI("process");
        call.setOperationName("process");
        call.setProperty(Call.OPERATION_STYLE_PROPERTY, Style.DOCUMENT.getName());
        call.setPortName(new QName(ns, "HelloWorldPort"));
        call.setPortTypeName(new QName(ns, "HelloWorld"));

        return call;
    }

      /*       *创建请求参数，实际上就是构建DOM片断，根据Web service对输入参数的要求来构建，要多复杂，都可以实现，       *这就是Docuemnt的好处，省去了复杂对象的序列化。       */
    static Object[] createRequest() throws ParserConfigurationException, FactoryConfigurationError{
        DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        Document doc = db.newDocument();
        Element root = doc.createElementNS(ns, "HelloWorldProcessRequest");
        Element input = doc.createElementNS(ns, "input");
        input.appendChild(doc.createTextNode("robin"));
        root.appendChild(input);
        doc.appendChild(root);

        return new Object[]{new SOAPBodyElement(root)};
    }

      // 对返回结果进行解析，并打印。
    static void parse(Vector v) throws Exception{
        Document doc = ((SOAPBodyElement) v.get(0)).getAsDocument();
        Element root = doc.getDocumentElement();
        OutputFormat of = new OutputFormat();
        of.setIndent(4);
        System.out.println(new DOMSerializerImpl().writeToString(root));
    }
}


上述代码运行输出结果为：

<?xml version="1.0"?>
<HelloWorldProcessResponse xmlns="http://xmlns.oracle.com/HelloWorld">
<result xmlns="http://xmlns.oracle.com/HelloWorld">robin</result>
</HelloWorldProcessResponse>



上面的代码很简单，需要说明的是：采用Document调用，实际上invoke方法的参数是一个元素类型为SOAPBodyElement的对象数组，而返回结果是一个元素类型的SOAPBodyElement的Vector对象。

 

From:http://www.javaeye.com/topic/138876

posted on 2008-05-26 11:09 lqx 阅读(1534) 评论(1)  编辑  收藏 所属分类: web service

评论

# re: java的call基于document/literal的webservice 2008-06-02 15:01 liguoxin

很不错的，不知道用java调.net写的web service是不是也只这样写的。.net的web service不就是document的吗  回复  更多评论   


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