JAX-WS和CDI没有在WAS Liberty Profile 8.5.5.6上协同工作

当我试图将JAX-WS web服务端点类和简单的CDI注入结合在一起时，我遇到了奇怪的行为。当我尝试将对象注入WebService实现类时，注入的对象的PostConstruct方法永远不会被调用。实际上，类构造函数也没有被调用。

以下是我的JAX-WS实现类和注入点：

@WebService(serviceName="eBusinessWebService")
public class eBusinessWebServiceImpl
{
    @WebMethod
    public SubmissionValidationResults xmlValidation(String xml, String submissionType, String schemaVersion)
            throws SOAPException
    {          
        // Validate schema
        SubmissionValidationResults results = fileSubmissionServiceHandler.validateXML(xml, submissionType,
                schemaVersion);
        
        return results;
    }
    @Inject
    private FileSubmissionServiceHandler fileSubmissionServiceHandler;
    @Inject
    private BRSubmissionService brSubmissionService;
}

这是我注入的类，FileSubmissionServiceHandler:

public class FileSubmissionServiceHandler
{
    public FileSubmissionServiceHandler()
    {
        System.out.println("Constructor being called on FileSubmissionServiceHandler");
    }
    @PostConstruct
    public void init()
    {
        final String webserviceURL = "https://hostname/FileSubmissionService/FileSubmissionService.svc";
        final String username = "username";
        final String password = "password";
        
        this.webservice = new BasicHttpsBinding_IFileSubmissionServiceProxy(username, password);
        Descriptor desc = webservice._getDescriptor();
        desc.setEndpoint(webserviceURL);
    }
    
    public SubmissionValidationResults validateXML(String xml, String submissionType,
            String schemaVersion) throws WebServiceException
    {
        SubmissionValidationResults results = null;
        FormType type = FormType.getByName(submissionType);
        String submissionTypeCode = type.getCode();
        try
        {
            results = this.webservice.validateXmlFile(xml, submissionTypeCode, schemaVersion);
            
        }
        catch (Exception e)
        {
            logger.error("Internal FileSubmissionService threw an exception", e);
            throw e;
        }
        return convertSubmissionValidationResults(results);
    }
    private BasicHttpsBinding_IFileSubmissionServiceProxy webservice;
}

我被要求发布我的服务器XML（由于同时运行两个Liberty配置文件副本，因此覆盖端口设置）：

<server description="new server">
<!-- Enable features -->
<featureManager>
    <feature>jaxws-2.2</feature>
    <feature>servlet-3.1</feature>
    <feature>cdi-1.2</feature>
</featureManager>
<!--For a user registry configuration, configure your user registry. For 
    example, configure a basic user registry using the basicRegistry element. 
    Specify your own user name below in the name attribute of the user element. 
    For the password, generate an encoded password using bin/securityUtility 
    encode and add it in the password attribute of the user element. Then uncomment 
    the user element. -->
<basicRegistry id="basic" realm="BasicRealm">
    <user name="wasadmin" password="{xor}KD4sPjsyNjE=" />
</basicRegistry>
<keyStore password="{xor}KD4sPjsyNjE=" />
<!-- To access this server from a remote client add a host attribute to 
    the following element, e.g. host="*" -->
<httpEndpoint host="*" httpPort="9090" httpsPort="9445"
    id="defaultHttpEndpoint" />
<wasJmsEndpoint wasJmsPort="7277" wasJmsSSLPort="7287" />
<iiopEndpoint host="localhost" id="defaultIiopEndpoint"
    iiopPort="2814">
    <iiopsOptions iiopsPort="2815" />
</iiopEndpoint>
<applicationMonitor updateTrigger="mbean" />
<enterpriseApplication id="eBusinessWebService_EAR"
    location="eBusinessWebService_EAR.ear" name="eBusinessWebService_EAR" />

和日志：

Launching defaultServer (WebSphere Application Server 8.5.5.6/wlp-1.0.9.cl50620150610-1749) on Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_79-b15 (en_US)
[AUDIT   ] CWWKE0001I: The server defaultServer has been launched.
[AUDIT   ] CWWKE0100I: This product is licensed for development, and limited production use. The full license terms can be viewed here: https://public.dhe.ibm.com/ibmdl/export/pub/software/websphere/wasdev/license/base_ilan/ilan/8.5.5.6/lafiles/en.html
[AUDIT   ] CWWKZ0058I: Monitoring dropins for applications. 
[WARNING ] CWNEN0047W: Resource annotations on the fields of the xxx.important.not.external.service.eBusinessWebServiceImpl class will be ignored. The annotations could not be obtained because of the exception : java.lang.NoClassDefFoundError: org/springframework/context/ApplicationContextAware
[AUDIT   ] CWWKT0016I: Web application available (default_host): http://localhost:9090/eBusinessWebService/
[AUDIT   ] CWWKZ0001I: Application eBusinessWebService_EAR started in 3.011 seconds.
[AUDIT   ] CWWKF0012I: The server installed the following features: [jaxws-2.2, cdi-1.2, servlet-3.1, jndi-1.0, javaMail-1.5, jaxb-2.2].
[AUDIT   ] CWWKF0011I: The server defaultServer is ready to run a smarter planet.
20-01-2016 - 10:02:47 - INFO  (eBusinessWebServiceImpl.java:31) - --- Validating Incomming Form XML ---
20-01-2016 - 10:02:47 - INFO  (eBusinessWebServiceImpl.java:33) - Received Payload: XML [Hello]
20-01-2016 - 10:02:47 - INFO  (eBusinessWebServiceImpl.java:34) - SubmissionType [from the]
20-01-2016 - 10:02:47 - INFO  (eBusinessWebServiceImpl.java:35) - SchemaVersion [other side]
[WARNING ] Application {http://service.external.not.important.xxx/}eBusinessWebService#{http://service.external.not.important.xxx/}xmlValidation has thrown exception, unwinding now
java.lang.NullPointerException

我已经编辑了每个类的一些不太相关的细节，但基本操作是相同的。当我试图访问"；validateXML"；方法，则抛出一个空指针异常，并且我从未在fileSubmissionServiceHandler类中看到postConstruct或构造函数方法的输出。使用调试器，永远无法访问这些方法。

到目前为止我检查过的东西：

我的WEB-INF文件夹中有一个空的beans.xml文件
我将在server.xml中包含javaee-7.0特性，该特性包括jax-ws和cdi
我还尝试将应用程序作用域和请求作用域都添加到FileSubmissionServiceHandler中，但没有效果

有人知道为什么这不起作用吗？

看起来由于某种原因没有执行注入。因此，构造函数和PostConstruct没有被调用，然后您就碰到了NPE。可以附上你的申请表吗？这样我可以再看一眼？

由于您没有粘贴日志，也没有粘贴配置文件、server.xml等。我试图在8.5.5.6上产生问题，但我发现我可以进行注入并调用后构造函数方法。

我的测试用例与您的类似。唯一的区别是我没有使用javaee-7.0功能，因为它需要在server.xml中进行更多配置，但只包括以下功能：

jaxws-2.2、servlet-3.1、cdi-1.2

请试一试。

如果它仍然不起作用，请确保在没有注射的情况下，它可以正常工作。您最好粘贴日志和完整的server.xml，因为它们对确定问题很重要。

好的，我终于找到了问题的原因。

CDI正在加载名为BRSubmissionService的对象。CDI加载被spring异常中断。由于CDI无法完成，剩余的CDI注入不会发生，并且我的FileSubmissionService对象也没有加载，这导致了我的空指针异常。

解决方案是修复位于另一个jar中的BRSubmissionService对象中的spring错误，不幸的是，我从另一个开发人员那里继承了这个错误。这就是生活。

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