如何从Java调用Web服务(由WSDL描述)

jdk 6附带jax-ws,这是为web服务开发客户机所需的一切。

我找不到一些足够简单的例子,但是从 https://jax-ws.dev.java.net/

编辑:下面是一个简单的示例-此Web服务的客户端: http://xmethods.com/ve2/ViewListing.po?key=427565

C:\temp> md generated
C:\temp>"c:\Program Files\Java\jdk1.6.0_17"\bin\wsimport -keep -d generated http://www50.brinkster.com/vbfacileinpt/np.asmx?wsdl

创建primeclient.java,如下所示:

import javax.xml.ws.WebServiceRef;
import com.microsoft.webservices.*; 
//the above namespace is from the generated code from the wsdl. 

public class PrimeClient {
 //Cant  get this to work.. @WebServiceRef(wsdlLocation="http://www50.brinkster.com/vbfacileinpt/np.asmx?wsdl")
  static PrimeNumbers service;

  public static void main(String[] args) {
    try {
    service = new PrimeNumbers();
      PrimeClient client = new PrimeClient();
      client.doTest(args);
    } catch(Exception e) {
      e.printStackTrace();
    }
  }

  public void doTest(String[] args) {
    try {
      System.out.println("Retrieving the port from the following service: " + service);
      PrimeNumbersSoap pm = service.getPrimeNumbersSoap();
      System.out.println("Invoking the getPrimeNumbersSoap operation ");
      System.out.println(pm.getPrimeNumbers(100));
    } catch(Exception e) {
      e.printStackTrace();
    }
  }
} 

编译并运行:

C:\temp>"c:\Program Files\Java\jdk1.6.0_17"\bin\javac -cp generated PrimeClient.java
C:\temp>"c:\Program Files\Java\jdk1.6.0_17"\bin\java -cp .;generated PrimeClient
Retrieving the port from the following service: com.microsoft.webservices.PrimeN
umbers@19b5393
Invoking the getPrimeNumbersSoap operation
1,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97

IDE的插件可以生成所需的代码来为您使用Web服务。

插件生成基本方法后,只需调用如下Web服务:

TransportServiceSoap service = new TransportServiceLocator().getTransportServiceSoap();
service.getCities();

看一看 http://urbas.tk/index.php/2009/02/20/eclipse-plug-in-as-a-web-service-client/

There are three ways to write a web service client

1. 动态代理
2. 动态调用接口(DII)
3. 应用程序客户端

动态代理客户端示例

import java.net.URL;

import javax.xml.rpc.Service;

import javax.xml.rpc.JAXRPCException;

import javax.xml.namespace.QName;

import javax.xml.rpc.ServiceFactory;

import dynamicproxy.HelloIF;

public class HelloClient {

    public static void main(String[] args) {
        try {

            String UrlString = "Your WSDL URL";  // 
            String nameSpaceUri = "urn:Foo";
            String serviceName = "MyHelloService";
            String portName = "HelloIFPort";

            System.out.println("UrlString = " + UrlString);
            URL helloWsdlUrl = new URL(UrlString);

            ServiceFactory serviceFactory =
                ServiceFactory.newInstance();

            Service helloService =
                serviceFactory.createService(helloWsdlUrl, 
                new QName(nameSpaceUri, serviceName));

            dynamicproxy.HelloIF myProxy = 
                (dynamicproxy.HelloIF) 
                helloService.getPort(
                new QName(nameSpaceUri, portName), 
                dynamicproxy.HelloIF.class); 

            System.out.println(myProxy.sayHello("Buzz"));

        } catch (Exception ex) {
            ex.printStackTrace();
        } 
    } 
}  

I hope , this would solve your question.

到目前为止,我发现的最简单的想法是IntLyJ向导,它使用Metro库生成一个非常小的代码片段,它可以用Java 6进行工作。