java如何调用webservice接口

java调用WebService可以直接使用Apache提供的axis.jar自己编写代码，或者利用Eclipse自动生成WebService Client代码，利用其中的Proxy类进行调用。理论上是一样的，只不过用Eclipse自动生成代码省事些。1、编写代码方式：package com.yudun.test;import java.rmi.RemoteException;import org.apache.axis.client.Call;import org.apache.axis.client.Service;import org.apache.axis.message.PrefixedQName;import org.apache.axis.message.SOAPHeaderElement;import com.cezanne.golden.user.Exception;import com.cezanne.golden.user.UserManagerServiceProxy;import javax.xml.namespace.QName;import java.net.MalformedURLException;import javax.xml.rpc.ServiceException;import javax.xml.soap.Name;import javax.xml.soap.SOAPException;

public class testWebService {public static String getResult() throws ServiceException, MalformedURLException, RemoteException, SOAPException  {     //标识Web Service的具体路径   String endpoint = "WebService服务地址";     // 创建 Service实例    Service service = new Service();        // 通过Service实例创建Call的实例    Call call = (Call) service.createCall();    //将Web Service的服务路径加入到call实例之中.    call.setTargetEndpointAddress( new java.net.URL(endpoint) );//为Call设置服务的位置   // 由于需要认证，故需要设置调用的SOAP头信息。       Name headerName = new PrefixedQName( new QName("发布的wsdl里的targetNamespace里的url", "string_itemName") );           org.apache.axis.message.SOAPHeaderElement header = new SOAPHeaderElement(headerName);           header.addTextNode( "blablabla" );           call.addHeader(header);

//    SOAPHeaderElement soapHeaderElement = new SOAPHeaderElement("发布的wsdl里的targetNamespace里的url", "SoapHeader");   //    soapHeaderElement.setNamespaceURI("发布的wsdl里的targetNamespace里的url");   //    try  //    {   //        soapHeaderElement.addChildElement("string_itemName").setValue("blablabla");   //    }   //    catch (SOAPException e)   //    {   //        e.printStackTrace();   //    }   //    call.addHeader(soapHeaderElement);      //调用Web Service的方法          org.apache.axis.description.OperationDesc oper;          org.apache.axis.description.ParameterDesc param;          oper = new org.apache.axis.description.OperationDesc();          oper.setName("opName");          param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg0"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"), java.lang.String.class, false, false);          param.setOmittable(true);          oper.addParameter(param);          param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg1"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"), java.lang.String.class, false, false);          param.setOmittable(true);          oper.addParameter(param);          param = new org.apache.axis.description.ParameterDesc(new javax.xml.namespace.QName("", "arg2"), org.apache.axis.description.ParameterDesc.IN, new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"), java.lang.String.class, false, false);          param.setOmittable(true);          oper.addParameter(param);          oper.setReturnType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"));          oper.setReturnClass(java.lang.String.class);          oper.setReturnQName(new javax.xml.namespace.QName("", "return"));          oper.setStyle(org.apache.axis.constants.Style.WRAPPED);          oper.setUse(org.apache.axis.constants.Use.LITERAL);          oper.addFault(new org.apache.axis.description.FaultDesc(                        new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "Exception"),                        "Exception",                        new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "Exception"),                         true                       ));   call.setOperation( oper );   call.setOperationName(new javax.xml.namespace.QName("发布的wsdl里的targetNamespace里的url", "opName"));    //调用Web Service,传入参数   String res = ( String ) call.invoke( new Object[]("arg0","arg1"));   System.out.println("===============");   return res;  }/**  * @param args  */ public static void main(String[] args) {  try {   System.out.println(getResult());  } catch (MalformedURLException e) {   e.printStackTrace();  } catch (RemoteException e) {   e.printStackTrace();  } catch (ServiceException e) {   e.printStackTrace();  } catch (SOAPException e) {   e.printStackTrace();  }    }}

2、利用Eclipse自动生成WebService client代码就容易多了：（由于还不会发图片，就用语言描述了，大家酬和看吧。。。）首先，new project，选择other，在输入框中输入Web Service Client，选中搜索后的结果，点击Next，在Service definition中输入 WebService的发布地址，点击Finish这样，WebService Client代码已经生成好了。接下来写一个Test类，在main函数中输入如下代码：

String endpoint = "服务器的WebService的地址"; YourWebServiceNameProxy umsp = new YourWebServiceNameProxy (endpoint); try { String resultStr = umsp.opMethod("arg0","arg1"); System.out.println(resultStr); } catch (Exception e) { System.out.println("异常"); e.printStackTrace();} catch (RemoteException e) { System.out.println("RemoteException异常"); e.printStackTrace();}