怎样通过ksoap2发送复杂参数给web service方法(How to send complex type using ksoap2)

Foo.java

/*
 * copyright
 */

package com.ufologist.model;

/**
 * 公用模型
 * 
 * @author Sun
 * @version 1.0 2012-9-8
 */
public class Foo {
    /**
     * 必须使用int类型, 因为当不设置此属性时, KSOAP2会得到默认值0.
     * 
     * 如果是Integer类型, 未设置属性的情况下, KSOAP2只会得到null, 此时会报错
     * SoapFault - faultcode: 'soap:Server' faultstring: 'Illegal argument. For input string: ""' faultactor: 'null' detail: null
     */
    private int id;
    private String name;

    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

Foo_.java

/*
 * copyright
 */

package com.ufologist.model.stub;

import java.util.Hashtable;

import org.ksoap2.serialization.KvmSerializable;
import org.ksoap2.serialization.PropertyInfo;

import com.ufologist.model.Foo;

/**
 * KSOAP2模型序列化实现类
 * 
 * @author Sun
 * @version 1.0 2012-9-8
 */
public class Foo_ extends Foo implements KvmSerializable {
    /**
     * 自定义类型(对象)所处的命名空间.
     * 从wsdl(xsd:schema节点targetNamespace属性)中可以找到
     * 
     * 例如:
     * <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" attributeFormDefault="qualified" elementFormDefault="qualified"
     *         targetNamespace="http://model.ufologist.com">
     *     <xsd:complexType name="Foo">
     *         <xsd:sequence>
     *             <xsd:element minOccurs="0" name="id" type="xsd:int"/>
     *             <xsd:element minOccurs="0" name="name" nillable="true" type="xsd:string"/>
     *         </xsd:sequence>
     *     </xsd:complexType>
     * </xsd:schema>
     */
    public static final String NAMESPACE = "http://model.ufologist.com";

    @Override
    public Object getProperty(int index) {
        Object value = null;
        switch (index) {
            case 0:
                value = getId();
                break;
            case 1:
                value = getName();
                break;
        }
        return value;
    }

    @Override
    public int getPropertyCount() {
        return 2;
    }

    @Override
    public void getPropertyInfo(int index, Hashtable properties,
            PropertyInfo info) {
        switch (index) {
            case 0:
                info.name = "id";
                info.type = PropertyInfo.INTEGER_CLASS;
                // 必须设置对象属性所处的命名空间.
                // KSOAP2将对象序列化成SOAP XML时才会在对应的命名空间下.
                // 生成的XML类似:
                // <n0:foo i:type="n0:Foo" xmlns:n0="http://model.ufologist.com">
                //     <n0:id i:type="d:int">0</n0:id>
                // </n0:foo>
                // 
                // 如果没有设置命名空间, 生成的XML类似(foo处于默认命名空间下明显不对):
                // <foo i:type="n0:Foo" xmlns:n0="http://model.ufologist.com">
                //     <id i:type="d:int">0</id>
                // </foo>
                // 通过KSOAP2调用WebService会返回错误信息
                // <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
                //     <soap:Body>
                //         <soap:Fault>
                //             <faultcode>soap:Server</faultcode>
                //             <faultstring>Fault: java.lang.NullPointerException</faultstring>
                //         </soap:Fault>
                //     </soap:Body>
                // </soap:Envelope>
                // 抛出异常
                // SoapFault - faultcode: 'soap:Server' faultstring: 'Fault: java.lang.NullPointerException' faultactor: 'null' detail: null
                // 
                // XXX 只要设置一个属性的namespace, 其他属性就可以不设置了
                info.namespace = NAMESPACE;
                break;
            case 1:
                info.name = "name";
                info.type = PropertyInfo.STRING_CLASS;
                info.namespace = NAMESPACE;
                break;
            default:
                break;
        }
    }

    @Override
    public void setProperty(int index, Object value) {
        // XXX 可以不实现?
//        switch (index) {
//            case 0:
//                setId(Integer.valueOf(value.toString()));
//                break;
//            case 1:
//                setName(value.toString());
//                break;
//            default:
//                break;
//        }
    }
}

Main.java

/*
 * copyright
 */

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;

import com.ufologist.model.stub.Foo_;

/**
 * 测试通过KSOAP2远程调用含自定义类型参数的WebService方法
 * 
 * @author Sun
 * @version 1.0 2012-9-8
 * @see http://seesharpgears.blogspot.in/2010/10/ksoap-android-web-service-tutorial-with.html
 * @see http://code.google.com/p/ksoap2-android/wiki/CodingTipsAndTricks#sending/receiving_array_of_complex_types_or_primitives
 * @see http://ksoap2.sourceforge.net/doc/api/
 */
public class Main {
    /**
     * web service服务的命名空间, 可以在wsdl(wsdl:definitions节点targetNamespace属性)中找到
     * 例如:
     * <wsdl:definitions targetNamespace="http://communication.service.server">
     */
    private final String NAMESPACE = "http://communication.service.server";

    /**
     * 测试用的web service方法的实现
     * 例如:
     * public Foo helloFoo(Foo foo) {
     *     foo.setId(foo.hashCode());
     *     return foo;
     * }
     */
    private final String METHOD_NAME = "helloFoo";

    /**
     * web service服务地址
     */
    private final String URL = "http://localhost:8080/xfiredemo/services/demo";

    public static void main(String[] args) {
        new Main().testKsoap2InvokeWs();
    }

    private void testKsoap2InvokeWs() {
        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

        // 设置要调用的web service方法的参数
        Foo_ foo = new Foo_();
        foo.setName("远程调用含自定义类型参数的WebService方法");
        PropertyInfo argument = new PropertyInfo();
        // web service实现方法中参数的名称
        argument.setName("foo");
        argument.setValue(foo);
        // 如果要调用的web service方法有自定义类型参数,
        // 建议设置参数的命名空间(如果在参数序列化实现类Foo_的属性中已经指定了命名空间, 省略似乎没什么影响, 但推荐指定)
        argument.setNamespace(Foo_.NAMESPACE);
        argument.setType(Foo_.class);
        request.addProperty(argument);

        // 设置web sevice SOAP envelope
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        envelope.dotNet = true;
        envelope.setOutputSoapObject(request);
        // 映射调用WebService要传递的序列化类对象
        // namespace和name就是wsdl中定义的complexType, clazz指定要序列化的类对象
        envelope.addMapping(Foo_.NAMESPACE, "Foo", Foo_.class);

        HttpTransportSE httpTransport = new HttpTransportSE(URL);
        // debug为true时调用httpTransport.requestDump/responseDump才有值,
        // 否则为null, 可以将生成的SOAP协议全部打印出来以供排错
        httpTransport.debug = true;

        try {
            httpTransport.call(null, envelope);
            // <v:Envelope xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns:d="http://www.w3.org/2001/XMLSchema" xmlns:c="http://schemas.xmlsoap.org/soap/encoding/" xmlns:v="http://schemas.xmlsoap.org/soap/envelope/">
            //     <v:Header />
            //     <v:Body>
            //         <helloFoo xmlns="http://communication.service.server" id="o0" c:root="1">
            //             <n0:foo i:type="n0:Foo" xmlns:n0="http://model.ufologist.com">
            //                 <n0:id i:type="d:int">0</n0:id>
            //                 <n0:name i:type="d:string">&#36828;&#31243;WebService&#26041;</n0:name>
            //             </n0:foo>
            //         </helloFoo>
            //     </v:Body>
            // </v:Envelope>
            System.out.println(httpTransport.requestDump);
            // <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            //     <soap:Body>
            //         <ns1:helloFooResponse xmlns:ns1="http://communication.service.server">
            //             <ns1:out>
            //                 <id xmlns="http://model.ufologist.com">5784348</id>
            //                 <name xmlns="http://model.ufologist.com">杩滅▼璋冪敤鍚刉ebService鏂规硶</name>
            //             </ns1:out>
            //         </ns1:helloFooResponse>
            //     </soap:Body>
            // </soap:Envelope>
            System.out.println(httpTransport.responseDump);

            // WebService方法返回的自定义类型对象表现为SoapObject, 类似动态JavaBean
            // TODO 这里是否也可以映射为自定义对象, 采用强类型来获取返回数据
            SoapObject response = (SoapObject) envelope.getResponse();
            // 获取属性值
            System.out.println(response.getProperty("id"));
            System.out.println(response.getProperty("name"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

完整实现的代码可参考: http://sunlab.googlecode.com/svn/trunk/ksoap2-complex-type-example/

非常感谢他们给我带来的启发和价值
http://seesharpgears.blogspot.in/2010/10/ksoap-android-web-service-tutorial-with.html
http://code.google.com/p/ksoap2-android/wiki/CodingTipsAndTricks#sending/receiving_array_of_complex_types_or_primitives

感谢分享。