JAX-WS 和 CDI 未在 WAS Liberty Profile 8.5.5.6 上协同工作
JAX-WS and CDI not working together on WAS Liberty Profile 8.5.5.6
当我尝试组合 JAX-WS Web 服务端点 class 和简单的 CDI 注入时，我遇到了奇怪的行为。当我尝试将对象注入 WebService 实现 class 时，从未调用注入对象的 PostConstruct 方法。事实上，classes 构造函数也未被调用。
这是我的 JAX-WS 实现 class 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 class，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 post 我的服务器 XML（由于同时有两份 Liberty 配置文件 运行 而覆盖端口设置）：
<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
我已经删除了每个class的一些不太相关的细节，但基本操作是相同的。当我尝试访问 fileSubmissionServiceHandler 对象的“validateXML”方法时，抛出一个空指针异常，并且我从未在我的 FileSubmissionServiceHandler [=40] 中看到 postConstruct 或构造函数方法的输出=].使用调试器，这些方法永远不会到达。
到目前为止我检查过的东西：
- 我的 WEB-INF 文件夹中有一个空 beans.xml 文件
- 我在 server.xml 中包含 javaee-7.0 功能，其中包括 jax-ws 和 cdi
- 我还尝试将应用程序范围和请求范围添加到 FileSubmissionServiceHandler，但没有任何效果。
有没有人知道为什么这行不通？
看起来由于某种原因没有执行注入。结果，构造函数和 PostConstruct 没有被调用，然后您遇到了 NPE。可以附上您的申请，以便我进一步查看吗？
因为你没有粘贴日志，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 post构造方法。
我的测试用例和你的类似。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，但只包含以下功能：
jaxws-2.2、servlet-3.1、cdi-1.2
请试一试。
如果还是不行，请确认不注入也能正常使用。您最好粘贴日志和完整的 server.xml，因为这些对问题确定很重要。
好的，我终于确定了问题的原因。
CDI 正在加载名为 BRSubmissionService 的对象。 CDI 加载被 spring 异常中断。并且由于 CDI 无法完成，剩余的 CDI 注入不会发生并且我的 FileSubmissionService 对象未加载，导致我的空指针异常。
解决方案是修复位于另一个 jar 中的 BRSubmissionService 对象内的 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。生活就是这样。
当我尝试组合 JAX-WS Web 服务端点 class 和简单的 CDI 注入时，我遇到了奇怪的行为。当我尝试将对象注入 WebService 实现 class 时，从未调用注入对象的 PostConstruct 方法。事实上，classes 构造函数也未被调用。
这是我的 JAX-WS 实现 class 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 class，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 post 我的服务器 XML（由于同时有两份 Liberty 配置文件 运行 而覆盖端口设置）：
<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
我已经删除了每个class的一些不太相关的细节，但基本操作是相同的。当我尝试访问 fileSubmissionServiceHandler 对象的“validateXML”方法时，抛出一个空指针异常，并且我从未在我的 FileSubmissionServiceHandler [=40] 中看到 postConstruct 或构造函数方法的输出=].使用调试器，这些方法永远不会到达。
到目前为止我检查过的东西：
- 我的 WEB-INF 文件夹中有一个空 beans.xml 文件
- 我在 server.xml 中包含 javaee-7.0 功能，其中包括 jax-ws 和 cdi
- 我还尝试将应用程序范围和请求范围添加到 FileSubmissionServiceHandler，但没有任何效果。
有没有人知道为什么这行不通？
看起来由于某种原因没有执行注入。结果，构造函数和 PostConstruct 没有被调用，然后您遇到了 NPE。可以附上您的申请，以便我进一步查看吗？
因为你没有粘贴日志，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 post构造方法。
我的测试用例和你的类似。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，但只包含以下功能：
jaxws-2.2、servlet-3.1、cdi-1.2
请试一试。
如果还是不行，请确认不注入也能正常使用。您最好粘贴日志和完整的 server.xml，因为这些对问题确定很重要。
好的，我终于确定了问题的原因。
CDI 正在加载名为 BRSubmissionService 的对象。 CDI 加载被 spring 异常中断。并且由于 CDI 无法完成，剩余的 CDI 注入不会发生并且我的 FileSubmissionService 对象未加载，导致我的空指针异常。
解决方案是修复位于另一个 jar 中的 BRSubmissionService 对象内的 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。生活就是这样。