[置顶] WebService调用工具（AXIS2）

package com.metarnet.util;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Proxy;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.List;
import javax.xml.namespace.QName;
import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.rpc.client.RPCServiceClient;

/**
 * WebService调用工具
 * 用法：
 * 	1：（推荐）WebServiceUtil.create(发布地址,命名空间,接口类);
 * 		创建的对象可以直接当成本地接口调用，例如
 * 			 WebService service = WebServiceUtil.create("http://localhost:8080/test/cxf/webservice",
 * 				"http://www.yanfan.com/",WebService.class);
 * 			 List<CeicsNeinfo> list = service.selectNeList();
 * 2:创建Util方式 WebServiceUtil util = new WebServiceUtil(
				"http://127.0.0.1:8090/metarnetos_v3/cxf/webservice",
				"http://www.metarnet.com/");
				CeicsNeinfo[] tasks = util.callback("selectNeList",CeicsNeinfo[].class);
 * 
 * @author YANFAN
 */
public class WebServiceUtil implements InvocationHandler{
	
	private RPCServiceClient serviceClient;
	private String nameSpace;//命名空间
	private int timeout = 30;//超时时间，单位：秒
	
	public WebServiceUtil(String endpoint,String nameSpace) throws AxisFault{
		serviceClient = new RPCServiceClient();
		Options options = serviceClient.getOptions();
		EndpointReference targetEPR = new EndpointReference(endpoint);
		options.setTo(targetEPR);
		options.setTimeOutInMilliSeconds(timeout*1000);
		this.nameSpace = nameSpace;
    }
	/**
	 * 调用 method 方法
	 * 有返回值，返回值类型 clazz
	 */
	public <T> T callback(String method,Class<T> clazz) throws AxisFault
	{
		return callback(method,new Object[]{},clazz);
	}
	/**
	 * 调用 method 方法，传递一个参数param
	 * 有返回值，返回值类型 clazz
	 */
	public <T> T callback(String method,Object param,Class<T> clazz) throws AxisFault
	{
		return callback(method,new Object[]{param}, clazz);
	}
	/**
	 * 调用 method 方法，传递多个参数param
	 * 有返回值，返回值类型 clazz
	 */
	@SuppressWarnings("unchecked")
	public <T> T callback(String method,Object[] param,Class<T> clazz) throws AxisFault
	{
		QName opName = new QName(nameSpace,method);
		Class<?>[] returnTypes = new Class[]{clazz};
		T[] results = (T[]) serviceClient.invokeBlocking(opName,param,returnTypes);
		return results[0];
	}
	/**
	 * 调用 method 方法
	 * 无返回值
	 */
	public void call(String method) throws AxisFault
	{
		QName opName = new QName(nameSpace,method);
		serviceClient.invokeBlocking(opName,new Object[]{});
	}
	/**
	 * 调用 method 方法，传递多个参数param
	 * 无返回值
	 */
	public void call(String method,Object[] param) throws AxisFault
	{
		QName opName = new QName(nameSpace,method);
		serviceClient.invokeBlocking(opName,param);
	}
	
	@Override
	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
		Class<?> retType = method.getReturnType();
		if(args == null){args=new Object[]{};}
		if(retType!=null)
		{
			if(retType.isAssignableFrom(List.class))
			{
				Type type = method.getGenericReturnType();
				if (type instanceof ParameterizedType) {
					retType = (Class<?>)((ParameterizedType) type).getActualTypeArguments()[0];
					retType = java.lang.reflect.Array.newInstance(retType,2).getClass();
				}
				return Arrays.asList((Object[]) callback(method.getName(),args,retType));
			}else
			{
				return callback(method.getName(),args,retType);
			}
		}else
		{
			call(method.getName(),args);
			return null;
		}
	}
	/**
	 * 创建代理对象
	 * @throws IllegalArgumentException 
	 * @throws AxisFault 
	 */
	@SuppressWarnings("unchecked")
	public static <T> T create(String endpoint,String nameSpace,Class<T> clazz) throws AxisFault, IllegalArgumentException
	{
		ClassLoader loader = clazz.getClassLoader();
		Class<?>[] proxy = new Class[]{clazz};
		T t =(T) Proxy.newProxyInstance(loader,proxy,new WebServiceUtil(endpoint,nameSpace));
		return t;
	}
}