axis2 webservice下实现AXIOM service的完整步骤

• 原理:

AXIOM,即OMElement（也称为 OM）
AXIS2会将Web service的方法中的参数,返回值中的自定义对象、数组、List等类型统一映射为OMElement类型
我们需要做的:  编写OMElement与类型之间的转换方法

• 1.先编写OMElement与类型之间的转换方法的util class
  

web service和client 都调用这个类型转换工具类,实现OMElement向基本类型和用户类的转换,以及反方向的基本类型和用户类向OMElement的转换            

public class OMElementStudent1Util {         public static void main(String[] args) throws AxisFault {     }         ///////////////////////object to OMElement////////////////////////////////     public static OMElement plainString2OMElement(String targetNameSpace,String prefix,String titleString,String retString){         // 获取OMNamespace         OMFactory fac=OMAbstractFactory.getOMFactory();         OMNamespace omNs=fac.createOMNamespace(targetNameSpace,prefix);         OMElement resp=fac.createOMElement(titleString,omNs);         resp.setText(retString);         return resp;     }         public static OMElement object2OMElement_pull(Object obj){         XMLStreamReader reader = BeanUtil.getPullParser(obj);                StreamWrapper parser = new StreamWrapper(reader);         StAXOMBuilder stAXOMBuilder            =OMXMLBuilderFactory.createStAXOMBuilder(OMAbstractFactory.getOMFactory(), parser);         OMElement element = stAXOMBuilder.getDocumentElement();         return element;     }         public static OMElement object2OMElement(Object[] oArray,String type){         OMElement omElement=                  BeanUtil.getOMElement(new QName("root"),oArray,new QName(type),false,null);            return omElement;     }

//////////////////////////OMElement to basic type/////////////////////////////////         public static String OM2PlainString(OMElement in){         return in.getText().trim();     }         public static List OM2ListString(OMElement in){           Iterator iterator = in.getChildElements();           List<String> list = new ArrayList<String>();            while (iterator.hasNext()) {            OMNode omNode = (OMNode) iterator.next();               if (omNode.getType() == OMNode.ELEMENT_NODE) {                   // 如果子对象也是element节点类型的话(其他还有文本节点, CDATA节点等)               OMElement omElement = (OMElement) omNode;                 if (omElement.getLocalName().equals("String")) { //看是否是对应类型                    list.add(omElement.getText().trim());  //获得返值             } // end of if                       } // end of if           } // end of while                     return list;     }

//////////////////////////OMElement to business Object type////////////////////////////////         public static Object OM2ObjectPrint(OMElement in) throws AxisFault{           Iterator iterator = in.getChildElements();                     Student1 stu = new Student1();           List<Student1> list = new ArrayList<Student1>();           while (iterator.hasNext()) {                            System.out.println("--------------------------------");                 OMNode omNode = (OMNode) iterator.next();              System.out.println("omNode.getType:"+omNode.getType());                     if (omNode.getType() == OMNode.ELEMENT_NODE) {             OMElement omElement = (OMElement) omNode;                           System.out.println("omElement.getLineNumber:"+omElement.getLineNumber());             System.out.println("omElement.getLocalName:"+omElement.getLocalName());                       System.out.println("omElement.getText:"+omElement.getText());                         if (omElement.getLocalName().toLowerCase().equals("age")) {                 stu.setAge(Integer.parseInt(omElement.getText()));                 }             if (omElement.getLocalName().toLowerCase().equals("id")) {                 stu.setId(Integer.parseInt(omElement.getText()));                 }                if (omElement.getLocalName().toLowerCase().equals("name")) {                 stu.setName(omElement.getText());                 }                       }           }                     return stu;     }             public static Object OM2Object1(OMElement in) throws AxisFault{                   //从element获取其子对象的迭代器           Iterator iterator = in.getChildElements();                     Student1 stu = new Student1();           while (iterator.hasNext()) {            OMNode omNode = (OMNode) iterator.next();                if (omNode.getType() == OMNode.ELEMENT_NODE) {             OMElement omElement = (OMElement) omNode;                if (omElement.getLocalName().toLowerCase().equals("age")) {                 stu.setAge(Integer.parseInt(omElement.getText()));                 }             if (omElement.getLocalName().toLowerCase().equals("id")) {                 stu.setId(Integer.parseInt(omElement.getText()));                 }                if (omElement.getLocalName().toLowerCase().equals("name")) {                 stu.setName(omElement.getText());                 }                       }           }                     return stu;     }     public static Object OM2Object2(OMElement in) throws AxisFault{                   //从element获取其子对象的迭代器           Iterator iterator = in.getChildElements();                     Student1 stu = new Student1();           while (iterator.hasNext()) {            OMNode omNode = (OMNode) iterator.next();                if (omNode.getType() == OMNode.ELEMENT_NODE) {             OMElement omElement = (OMElement) omNode;                if(omElement.getLocalName().toLowerCase().equals("student1")){                 stu=(Student1)BeanUtil.processObject(omElement,Student1.class,null,true,new DefaultObjectSupplier());             }                       }           }                     return stu;     }         public static List<Student1> OM2ObjectList(OMElement in) throws AxisFault{                   //从element获取其子对象的迭代器           Iterator iterator = in.getChildElements();                     Student1 stu = new Student1();           List<Student1> sList = new ArrayList<Student1>();           while (iterator.hasNext()) {            OMNode omNode = (OMNode) iterator.next();                if (omNode.getType() == OMNode.ELEMENT_NODE) {             OMElement omElement = (OMElement) omNode;                if(omElement.getLocalName().toLowerCase().equals("student1")){                 stu=(Student1)BeanUtil.processObject(omElement,Student1.class,null,true,new DefaultObjectSupplier());                  sList.add(stu);             }                        }           }                     return sList;     }     }

• 2.AXIOM webservice class

service class

@Service public class TestOMSpring {     @Autowired                            private StuService stuService;             public OMElement findByIdPlain(OMElement in){         String name=in.getText();    // 获取OMElement形式的参数,转换为常见的类型                                                                                                         // 程序逻辑         Integer id=Integer.parseInt(name);         String retString = stuService.getById(id).getName();                         // 生成返值         return OMElementStudent1Util.plainString2OMElement(                "http://test.machome.com","hw","findByIdResponse",retString);     }             public OMElement findAllString(OMElement in){                                                                                                 // 程序逻辑         List<Student1> sList = stuService.findAll();         String[] rets = new String[sList.size()];         for(int i=0;i<rets.length;i++)             rets[i]=sList.get(i).getName();                        // 生成返值         return  OMElementStudent1Util.object2OMElement(rets,"String");     }             public OMElement findAllList(OMElement in){                                                                                                         // 程序逻辑         List<Student1> sList = stuService.findAll();                 List<String> rets = new ArrayList<String>(sList.size());         for(int i=0;i<sList.size();i++)             rets.add(sList.get(i).getName());                 // 生成返值         // axiom对List也是转成数组处理的         return  OMElementStudent1Util.object2OMElement(rets.toArray(),"String");     }             public OMElement findByIdObject_pull(OMElement in){         String name=in.getText();    // 获取OMElement形式的参数,转换为常见的类型                                                                                                         // 程序逻辑         Integer id=Integer.parseInt(name);         Student1 retStu = stuService.getById(id);                 //生成返值                return OMElementStudent1Util.object2OMElement_pull(retStu);     }             public OMElement findByIdObject(OMElement in){         String name=in.getText();    // 获取OMElement形式的参数,转换为常见的类型                                                                                                         // 程序逻辑         Integer id=Integer.parseInt(name);         Student1 retStu = stuService.getById(id);                 // 生成返值         return  OMElementStudent1Util.object2OMElement(new Student1[]{retStu},"Student1");     }         public OMElement findAllObject(OMElement in){         // 程序逻辑         List<Student1> sList = stuService.findAll();                 // 生成返值         return  OMElementStudent1Util.object2OMElement(sList.toArray(),"Student1");     }         }

            
META-INF/services.xml文件:  注意AXIOM方式的方法,要重新定义方法的messageReceiver为raw方式

<serviceGroup> <service name="TestOMSpring" scope="application" targetNamespace="http://quickstart.samples/">     <description>         TestOMSpring Service     </description>         <parameter name="ServiceObjectSupplier">         org.apache.axis2.extensions.spring.receivers.SpringServletContextObjectSupplier     </parameter>         <parameter name="SpringBeanName">testOMSpring</parameter>         <messageReceivers>         <messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-only"                          class="org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver"/>         <messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-out"                          class="org.apache.axis2.rpc.receivers.RPCMessageReceiver"/>     </messageReceivers>    <operation name="findByIdPlain">  <messageReceiver class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/> </operation>   <operation name="findAllString">  <messageReceiver class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/> </operation>   <operation name="findAllList">  <messageReceiver class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/> </operation>  <operation name="findByIdObject_pull">  <messageReceiver class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/> </operation>  <operation name="findByIdObject">  <messageReceiver class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/> </operation>  <operation name="findAllObject">  <messageReceiver class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/> </operation>         </service> </serviceGroup >

• 3.client 端           

public class TestOMSpringClient {     private final static String TARGET_NAMESPACE = "http://test.machome.com";     private final static String  PREFIX = "hw";     private final static String  SERVICE_URL =         "http://localhost:8080/axis2/services/TestOMSpring";         public static void main(String[] args) throws AxisFault {         ServiceClient sender = initClient(SERVICE_URL);                 getFindByIdPlain(sender,"1");         getFindAllString(sender);         getFindAllList(sender);                System.out.println("---------------------------");         getFindByIdObject_pull(sender,"3");         getFindByIdObject(sender,"2");         getFindAllObject(sender);     }         public static ServiceClient initClient(String serviceUrl) throws AxisFault{         EndpointReference targetEPR=new EndpointReference(serviceUrl);                 Options options=new Options();         options.setTo(targetEPR);                 ServiceClient sender=new ServiceClient();         sender.setOptions(options);                 return sender;     }

//////////////////////////basic type/////////////////////////////////         public static void getFindByIdPlain(ServiceClient sender,String param) throws AxisFault{            OMElement method=OMElementStudent1Util.plainString2OMElement(                 TARGET_NAMESPACE,PREFIX, "findByIdPlain", param);         OMElement result=sender.sendReceive(method);         System.out.println(OMElementStudent1Util.OM2PlainString(result));             }         public static void getFindAllString(ServiceClient sender) throws AxisFault{            OMElement method=OMElementStudent1Util.plainString2OMElement(                 TARGET_NAMESPACE,PREFIX, "findAllString", null);         OMElement result=sender.sendReceive(method);                  List<String> list = OMElementStudent1Util.OM2ListString(result);                     System.out.println("list:");           for(String temp:list)               System.out.println(temp);     }      public static void getFindAllList(ServiceClient sender) throws AxisFault{                OMElement method=OMElementStudent1Util.plainString2OMElement(                 TARGET_NAMESPACE,PREFIX, "findAllList", null);                 OMElement result=sender.sendReceive(method);                  // 不管是数组还是List,在service端都被做成数组(list.toArray())          List<String> list = OMElementStudent1Util.OM2ListString(result);                     System.out.println("list:");           for(String temp:list)               System.out.println(temp);     }

//////////////////////////business Object type////////////////////////////////          public static void getFindByIdObject_pull(ServiceClient sender,String param) throws AxisFault{         OMElement method=OMElementStudent1Util.plainString2OMElement(                 TARGET_NAMESPACE,PREFIX, "findByIdObject_pull", param);         OMElement result=sender.sendReceive(method);         Student1 stu = (Student1)OMElementStudent1Util.OM2Object1(result);         System.out.println(stu.getId()+":"+stu.getName()+":"+stu.getAge());              }     public static void getFindByIdObject(ServiceClient sender,String param) throws AxisFault{         OMElement method=OMElementStudent1Util.plainString2OMElement(                 TARGET_NAMESPACE,PREFIX, "findByIdObject", param);         OMElement result=sender.sendReceive(method);         Student1 stu = (Student1)OMElementStudent1Util.OM2Object2(result);         System.out.println(stu.getId()+":"+stu.getName()+":"+stu.getAge());              }          public static void getFindAllObject(ServiceClient sender) throws AxisFault{                 OMElement method=OMElementStudent1Util.plainString2OMElement(                 TARGET_NAMESPACE,PREFIX, "findAllObject", null);         OMElement result=sender.sendReceive(method);                  //OM2ObjectPrint(result);          List<Student1> list = OMElementStudent1Util.OM2ObjectList(result);                      System.out.println("list:");           for(Student1 temp:list)               System.out.println(temp.getId()+":"+temp.getName()+":"+temp.getAge());         }          }

          

执行测试

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