Axis2调用基于JDK中JAX-WS发布的webservice调用方式整理

我们在使用Axis2调用webservice的时候，在使用基础JAX-WS的时候会出现很多细节性问题，问了解决这个问题，我深入整理了一下具体的问题及解决方案，我们在网上通过查询会发现网上有两种方法，分别是RPC方式和Document方式，其实他们的实现上区别不大，主要是调用方式上，我们可以参照SOUPUI来理解就很容易了。具体我先上代码，然后在说细节。

import java.util.HashMap;
import java.util.Map;

import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding.ParameterStyle;
import javax.jws.soap.SOAPBinding.Style;
import javax.xml.ws.Endpoint;

@WebService(targetNamespace = "http://xxx.com", serviceName = "TestPService")
@javax.jws.soap.SOAPBinding(style=Style.DOCUMENT,parameterStyle=ParameterStyle.WRAPPED)
public class WsDemo {

	public static void main(String[] args) {
		WsDemo hello = new WsDemo();
		Endpoint.publish("http://localhost:8091/testWS/services/TestP", hello);
		System.out.println("webservice Public Success");
	}

	@WebMethod(action = "access")
	@WebResult(name = "accessReturn")
	public String access(@WebParam(name="xmldata")String xmldata) {
		return "invoke success " + xmldata;
	}
	
	@WebMethod(action = "accessMap")
	@WebResult(name = "accessReturn")
	public Map<String,String> accessMap(String xmldata) {
		Map<String,String> map=new HashMap<String,String>();
		map.put("msg", xmldata);
		return map;
	}
}

import javax.xml.namespace.QName;

import org.apache.axiom.om.OMElement;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.databinding.utils.BeanUtil;
import org.apache.axis2.engine.DefaultObjectSupplier;
import org.apache.axis2.rpc.client.RPCServiceClient;
import org.apache.axis2.transport.http.HTTPConstants;


public class AxisUtils {
	private static final AxisUtils single = new AxisUtils();

	private AxisUtils() {
	}

	public static AxisUtils getInstance() {
		return single;
	}

	public String rpcCall(String endpoint, String Namespace, String method, Object[] parameter, int timeout,
			Class<?>[] returnDateType, String SOAPaction) {
		String result = "";
		RPCServiceClient client;
		Object[] obj = null;
		EndpointReference targetEPR = new EndpointReference(endpoint);
		try {
			client = new RPCServiceClient();
			Options options = client.getOptions();
			options.setProperty(HTTPConstants.SO_TIMEOUT, timeout);
			options.setTo(targetEPR);
			if (SOAPaction == null || "".endsWith(SOAPaction)) {
				Map<String, Object> properties = new HashMap<String, Object>();
				properties.put(Constants.Configuration.DISABLE_SOAP_ACTION, true);
				options.setProperties(properties);
			}
			options.setAction(SOAPaction);
			QName opAddEntry = new QName(Namespace, method);
			obj = client.invokeBlocking(opAddEntry, parameter, returnDateType);
			result = obj[0].toString();
			if (result == null) {
				result = "";
			}
		} catch (AxisFault e) {
		}
		return result;
	}

	public String documentCall(String endpoint, String namespace, String method, OMElement data,
			String returnElementName, int timeout, String SOAPaction) {
		String result = "";
		RPCServiceClient serviceClient = null;
		try {
			serviceClient = new RPCServiceClient();
			Options options = serviceClient.getOptions();
			EndpointReference targetEPR = new EndpointReference(endpoint);
			options.setTo(targetEPR);
			options.setProperty(HTTPConstants.SO_TIMEOUT, timeout);
			if (SOAPaction == null || "".endsWith(SOAPaction)) {
				Map<String, Object> properties = new HashMap<String, Object>();
				properties.put(Constants.Configuration.DISABLE_SOAP_ACTION, true);
				options.setProperties(properties);
			}
			options.setAction(SOAPaction);
			OMElement omResult = serviceClient.sendReceive(data);
			//方式一
			//Class<?>[] returnTypes=new Class<?>[] {String.class};
			//Object[] returnObjs= BeanUtil.deserialize(omResult, returnTypes, new DefaultObjectSupplier());
			//方式二
			System.out.println("====="+omResult.getFirstElement().getText());
			Iterator<?> it = omResult.getChildrenWithLocalName(returnElementName);
			while (it.hasNext()) {
				OMElement el = (OMElement) it.next();
				result = el.getText();
				if (result == null) {
					result = "";
				}
			}
			serviceClient.cleanupTransport();
		} catch (AxisFault e) {
			try {
				serviceClient.cleanupTransport();
			} catch (AxisFault e1) {
			}

		}
		return result;
	}
	
}

上面两段代码分别是webservice和工具类，接下来上的代码分别是RPC调用和Document调用。

public class Demo1 {

	public static void main(String[] args) {
		String endpoint = "http://localhost:8091/testWS/services/TestP?wsdl";
		String Namespace = "http://xxx.com";
		String method = "access";
		Object[] parameter = new Object[] { "hah" };
		int timeout=30;
		Class<?>[] returnDateType=new Class<?>[] {String.class};
		String SOAPaction="";
		String ws_rpc_return=AxisUtils.getInstance().rpcCall(endpoint, Namespace, method, parameter, timeout, returnDateType, SOAPaction);
		System.out.println(ws_rpc_return);
	}

}

import javax.xml.namespace.QName;

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.databinding.utils.BeanUtil;

public class Demo2 {

	public static void main(String[] args) {
		String endpoint = "http://localhost:8091/testWS/services/TestP?wsdl";
		String namespace = "http://xxx.com";
		String method = "access";
		String returnElementName = "";
		int timeout = 30;
		String SOAPaction = "";
		// 方式一
		Object[] params = new Object[] { "hahah" };
		QName qname = new QName(namespace, method);
		OMElement omElement = BeanUtil.getOMElement(qname, params, null, false, null);
		// 方式二
		OMFactory fac = OMAbstractFactory.getOMFactory();
		OMNamespace qnamespace = fac.createOMNamespace(namespace, "");
		OMElement methodInfo = fac.createOMElement(method, qnamespace);
		OMElement valueInfo = fac.createOMElement("xmldata", fac.createOMNamespace("", ""));
		valueInfo.setText("北京");
		methodInfo.addChild(valueInfo);

		String ws_rpc_return = AxisUtils.getInstance().documentCall(endpoint, namespace, method, omElement,
				returnElementName, timeout, SOAPaction);
		System.out.println(ws_rpc_return);
	}

}

好了代码上全了，现在开始说细节，我么在使用RPC方式调用的时候，发布的webservice不能指定入参的参数名，如果指定了参数名是没法传参的，参数为null，Document方式有两种，第一种也是不能指定参数，但是方式二可以指定参数，但是方法和字段都需要命名空间，且参数的命名空间必须是xmlns=""，否则传参也为空。以上方法是通过Axis2-adb.jar通过源码查看调用及解析方式得来，如果有喜欢深入学习建议查看源码。