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我正在从 CXF 复制最简单的 Web 服务示例；它逐步编写一个接口，然后是一个实现文件，以向 Web 服务使用者提供的名称打招呼。我更改了包名和方法名，因为我想看看事情出现在哪里；如果您将所有内容命名为 HelloWorld，您将看不到方法、包、类等是什么。

这些指令包括发布 Web 服务的程序。在我这样做之后，把网址

http://localhost:9000/helloWorld?wsdl

在浏览器中显示一个 wsdl 文件，其中包含我拼写的足够内容，以使我相信它是从我的代码生成的。基于此，我假设 WSDL 生成和发布都有效。

这是服务接口：

    package hw;

    import javax.jws.WebParam;
    import javax.jws.WebService;

    @WebService
    public interface HelloWorld
    {
        String sayHi(@WebParam(name="firstName") String firstName);
    }

这是服务实现：

package hwimpl;

import javax.jws.WebService;

@WebService(endpointInterface = "hw.HelloWorld", serviceName = "HelloWorld")
public class HelloWorldImpl
{
    static public void say(String msg) { System.out.println(msg); }

    public String sayHi(String firstName) 
    { say ("sayHi called with " + firstName); 
      return "Hello " + firstName + " from the World."; 
    }
}

这是发布程序：

package hwimpl;

import javax.xml.ws.Endpoint;

public class PublishHelloWorldService
{

    protected PublishHelloWorldService() throws Exception
    {
        // START SNIPPET: publish
        System.out.println("Starting Server");
        HelloWorldImpl implementor = new HelloWorldImpl();
        String address = "http://localhost:9000/helloWorld";
        Endpoint.publish(address, implementor);
        // END SNIPPET: publish
    }

    public static void main(String args[]) throws Exception
    {
        new PublishHelloWorldService();
        System.out.println("Server ready...");

        Thread.sleep(5 * 60 * 1000);
        System.out.println("Server exiting");
        System.exit(0);
    }
}

现在我编译并运行这个程序：

package client;

import hw.HelloWorld;

import javax.xml.namespace.QName;
import javax.xml.ws.Service;
import javax.xml.ws.soap.SOAPBinding;


public final class HelloWorldClient
{

    private static final QName SERVICE_NAME = new QName("http://server.hw.demo/",   "HelloWorld");
    private static final QName PORT_NAME = new QName("http://server.hw.demo/",    "HelloWorldPort");

    private HelloWorldClient()
    {
    }

    public static void main(String args[]) throws Exception
    {
        Service service = Service.create(SERVICE_NAME);
        String endpointAddress = "http://localhost:9000/helloWorld";
        // If web service deployed on Tomcat deployment, endpoint should be changed
        // to:
        // String 
//      endpointAddress =
//       "http://localhost:8080/java_first_jaxws/services/hello_world";

        // Add a port to the Service
        service.addPort(PORT_NAME, SOAPBinding.SOAP11HTTP_BINDING, endpointAddress);

        HelloWorld hw = service.getPort(HelloWorld.class);
        System.out.println(hw.sayHi("Albert"));

    }

}

我得到这个错误：

Exception in thread "main" javax.xml.ws.WebServiceException: Could not send Message.
    at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:135)
    at com.sun.proxy.$Proxy20.sayHi(Unknown Source)
    at client.HelloWorldClient.main(HelloWorldClient.java:37)
Caused by: java.net.MalformedURLException: Invalid address. Endpoint address cannot be null.
    at org.apache.cxf.transport.http.HTTPConduit.getURL(HTTPConduit.java:872)
    at org.apache.cxf.transport.http.HTTPConduit.getURL(HTTPConduit.java:854)
    at org.apache.cxf.transport.http.HTTPConduit.setupURL(HTTPConduit.java:800)
    at org.apache.cxf.transport.http.HTTPConduit.prepare(HTTPConduit.java:548)
    at org.apache.cxf.interceptor.MessageSenderInterceptor.handleMessage(MessageSenderInterceptor.java:46)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:255)
    at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:516)
    at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:313)
    at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:265)
    at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:73)
    at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:124)
    ... 2 more

我正在运行来自 Eclipse 的程序——发布和客户端。Eclipse 在 Window / Preferences 中设置了 http 和 https 的代理；在运行客户端之前，我删除了 http 的那个，但它并没有改变消息。

它实际上是一个 tomcat 服务器；我在发布程序中尝试了备用 URL，没有任何变化。

在这种情况下，我不会从 Eclipse 中运行 tomcat；我在我的机器上自己运行它，然后运行发布程序（来自 eclipse），验证显示 wsdl 的 url 是否正常工作，然后运行客户端程序（来自 eclipse）并得到我的错误。

有人可以告诉我我做错了什么吗？我已经看到有关此确切错误消息的其他帖子，但没有一个答案是确定的，我似乎已经尝试了所有这些。

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1 回答 1

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Not sure this is your problem.

I've sometimes had problems with eclipse not being able to run tomcat applications on a running tomcat as you describe in your example. What I sometimes have to do when working with tomcat and eclipse is either

  1. have a running tomcat (windows service) and then export my eclipse application to that tomcat
  2. stop the running tomcat on that port from windows services and start the tomcat from inside eclipse when running the program.

For some reason eclipse seems to have problems with an already running tomcat.

于 2014-12-04T16:10:27.803 回答