解决 -- java 调用webservice 服务端收到参数为null

package com.boco.esb.receive;

import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.xml.ws.Endpoint;
//import org.apache.axis2.context.MessageContext;  

@WebService(serviceName="HermesService",targetNamespace = "http://com.boco.esb.receive")
public class HermesService {

	
	//该方法就是要暴露给其他应用程序调用的方法  
	@WebMethod(operationName="example")
    public String example(String param){  
    	
        System.out.println("------------------- 调用服务端方法 ！-----------------");
        StringBuffer paramStr = new StringBuffer(param);
        System.out.println("-----param参数为:"+paramStr);
        return param;  
    }  
    
    /** 
     * 认证
     */  
    public static void checkHesder() throws Exception  
    {
    	
    }
    
  
    //这里我们使用main方法来发布我们的service  
    public static void main(String[] args){  
    	
    	 /**
         * 参数1：服务的发布地址
         * 参数2：服务的实现者
         * Endpoint 会重新启动一个线程
         */
        Endpoint.publish("http://localhost:7081/Hermes/services/HermesService",new HermesService());  
        System.out.println("------- com.boco.esb.receive的HDMP的服务启动成功！   -----   ~_~   ----- ");  
    }  
    
}

package hdmpClient;

import javax.xml.namespace.QName;
import javax.xml.rpc.ParameterMode;

import org.apache.axis.AxisEngine;
import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.encoding.XMLType;
import org.apache.axis.message.SOAPHeaderElement;
import org.apache.axis.soap.SOAPConstants;


public class Client extends org.apache.axis.client.Stub{
	
	public static void main(String[] args) {
		try {
			new Client().get();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private void get() throws Exception {
		
        Service service = new Service() ;  
		Call call = (Call) service.createCall();
		
		SOAPHeaderElement serviceCode = new SOAPHeaderElement(new QName("cn.com.boco.HermesService", "ServiceCode"), "SRCH.SERVICE.TEST_GIS.GIS_APP");
		SOAPHeaderElement userName = new SOAPHeaderElement(new QName("cn.com.boco.HermesService", "UserName"), "IRMS");
		SOAPHeaderElement authCode = new SOAPHeaderElement(new QName("cn.com.boco.HermesService", "AuthCode"), "ca45672f-2c9a-4961-9597-a6f562fdf787");
		SOAPHeaderElement eventId = new SOAPHeaderElement(new QName("cn.com.boco.HermesService", "EventId"), "41591591");
		call.addHeader(serviceCode);
		call.addHeader(userName);
		call.addHeader(authCode);
		call.addHeader(eventId);
		
		call.setTargetEndpointAddress("http://localhost:7081/Hermes/services/HermesService");
		call.setSOAPActionURI("http://com.boco.esb.receive/example");
		call.setOperationName(new QName("http://com.boco.esb.receive", "example")); // example 为服务端接口方法名  
		
		call.setEncodingStyle(null);
		call.setUseSOAPAction(true);
		call.setProperty(Call.SEND_TYPE_ATTR, Boolean.FALSE);
		call.setProperty(AxisEngine.PROP_DOMULTIREFS, Boolean.FALSE);
		call.setSOAPVersion(SOAPConstants.SOAP11_CONSTANTS);
		
		setRequestHeaders(call);
		setAttachments(call);
		
		// 设置接口参数与类型（ 以下2种都能正常传参 ）
//		call.addParameter(new QName("arg0"),XMLType.XSD_STRING, ParameterMode.IN);
		call.addParameter("arg0", XMLType.XSD_DATE,ParameterMode.IN);  
		
		call.setReturnType(XMLType.XSD_STRING);// 设置返回数据类型  
		
		String[] param = new String[1]; // 参数
		param[0] = "参数1,参数2，参数3"; // 实际可用json
		
		String result = (String) call.invoke(param);
		System.out.println("result为--------------------"+result);
	}
	

}