JAX-WS端点中的CDI注入不起作用，导致NPE [英] CDI injection in JAX-WS endpoint does not work, results in NPE

问题描述

为什么以下CDI在Glassfish 3.x.x的JAX-WS端点中不起作用？从端点访问服务时得到NPE。

Why doesn't the following CDI work in JAX-WS endpoints in glassfish 3.x.x? I get an NPE when accessing the service from the endpoint.

@WebService
public class JaxWsTestEndpoint {

    @Inject
    private MyService service;

    @WebMethod
        public String sayHello(String name) {
        System.out.println("injected service:" + service);
        service.callService();
        return "Hello, " + name + ".";
    }
}

其中服务类的定义如下：

Where the class "service" is defined as follows:

@Named("myService")
public class MyService {
     public MyService() {
        System.out.println("init myService.");
     }

    public void callService() {
            System.out.println("calling Service.");
    }
 }

我在WEB-中有一个空的beans.xml文件， INF。我尝试使用完全空内容和空

I have an empty beans.xml file in WEB-INF. I tried it with complete empty content, and with an empty

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee      http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">

</beans>

标签。但是以某种方式，JAX-WS端点中的服务字段在部署后和接收Web服务请求期间仍为NULL，从而在调用服务时导致NPE。我在这里错过了什么？

tag. But somehow, the service field in the JAX-WS endpoint is still NULL after deployment and during receiving a web service request, resulting in a NPE when calling the service. What am i missing here?

推荐答案

是的，我通过删除sun-jaxws.xml并修改了指向我的web.xml使其工作了

Yes I got it working by removing sun-jaxws.xml and modifying web.xml pointing my webservice directly instead of WSServlet.

http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd>

http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

 <!-- This listener parses a sun specific configuration file (sun-jaxws.xml), which provides the web service
endpoints and connects the WSServlet instance to the services' implementation classes -->
<!--<listener>
    <listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class>
</listener> -->

<!-- Delegate requests whose URLs end with the path '/StakeholderWebService' to a WSServlet instance provided by container, which in turn is linked to the JWS runtime --> 
<servlet>
    <servlet-name>StakeholderWebService</servlet-name>
<!--     <servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class> -->
    <servlet-class>com.werner.stakeholder.webservices.StakeholderWebServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>StakeholderWebService</servlet-name>
    <url-pattern>/stakeholderWebService</url-pattern>
</servlet-mapping>
<session-config>
    <session-timeout>120</session-timeout>
</session-config>

这篇关于JAX-WS端点中的CDI注入不起作用，导致NPE的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！