java - CXF - 方法参数为空

Question

我使用 CXF 3.3.6 和 Jetty 9.4.14。 Jetty 不知道 CXF 并且我使用 web.xml 来链接它们。在那个描述符中，我设置了 CXF servlet，我在其中覆盖了 loadBus 方法。当我去http://127.0.0.1:8080/webservices/calcService?wsdl我看到了服务的 wsdl。这些是我使用的依赖项:

cxf-rt-transports-http-3.3.6.jar
cxf-rt-frontend-jaxws-3.3.6.jar
cxf-core-3.3.6.jar
cxf-rt-frontend-simple-3.3.6.jar
cxf-rt-bindings-soap-3.3.6.jar
cxf-rt-wsdl-3.3.6.jar
cxf-rt-databinding-jaxb-3.3.6.jar
jakarta.xml.ws-api-2.3.2.jar
jakarta.xml.soap-api-1.4.1.jar
jakarta.jws-api-1.1.1.jar
xmlschema-core-2.2.5.jar
istack-commons-runtime-3.0.8.jar
woodstox-core-5.0.3.jar
stax2-api-3.1.4.jar
wsdl4j-1.6.3.jar

//having lost any hope I also added the following:
cxf-rt-bindings-xml-3.3.6.jar
cxf-rt-ws-addr-3.3.6.jar
cxf-rt-ws-policy-3.3.6.jar
cxf-rt-transports-http-jetty-3.3.6.jar
neethi-3.1.1.jar
xml-resolver-1.2.jar
txw2-2.3.2.jar
stax-ex-1.8.3.jar
saaj-impl-1.4.0-b03.jar
mimepull-1.9.7.jar
FastInfoset-1.2.16.jar
jaxb-runtime-2.3.2.jar
jboss-rmi-api_1.0_spec-1.0.6.Final.jar
jacorb-omgapi-3.9.jar

这是我的课

@WebService(name="CalculatorService", serviceName="CalculatorService")
public class CalculatorService {

    @WebMethod
    public double addNumbers(double v1, double v2) {
        return v1 + v2;
    }
}

这是生成的wsdl

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions name="CalculatorService" targetNamespace="http://cfx.foo.com/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://cfx.foo.com/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
  <wsdl:types>
<xs:schema xmlns:tns="http://cfx.foo.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="unqualified" targetNamespace="http://cfx.foo.com/" version="1.0">

  <xs:element name="addNumbers" type="tns:addNumbers"/>

  <xs:element name="addNumbersResponse" type="tns:addNumbersResponse"/>

  <xs:complexType name="addNumbers">
    <xs:sequence>
      <xs:element name="arg0" type="xs:double"/>
      <xs:element name="arg1" type="xs:double"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="addNumbersResponse">
    <xs:sequence>
      <xs:element name="return" type="xs:double"/>
    </xs:sequence>
  </xs:complexType>

</xs:schema>
  </wsdl:types>
  <wsdl:message name="addNumbers">
    <wsdl:part name="parameters" element="tns:addNumbers">
    </wsdl:part>
  </wsdl:message>
  <wsdl:message name="addNumbersResponse">
    <wsdl:part name="parameters" element="tns:addNumbersResponse">
    </wsdl:part>
  </wsdl:message>
  <wsdl:portType name="CalculatorService">
    <wsdl:operation name="addNumbers">
      <wsdl:input name="addNumbers" message="tns:addNumbers">
    </wsdl:input>
      <wsdl:output name="addNumbersResponse" message="tns:addNumbersResponse">
    </wsdl:output>
    </wsdl:operation>
  </wsdl:portType>
  <wsdl:binding name="CalculatorServiceSoapBinding" type="tns:CalculatorService">
    <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
    <wsdl:operation name="addNumbers">
      <soap:operation soapAction="" style="document"/>
      <wsdl:input name="addNumbers">
        <soap:body use="literal"/>
      </wsdl:input>
      <wsdl:output name="addNumbersResponse">
        <soap:body use="literal"/>
      </wsdl:output>
    </wsdl:operation>
  </wsdl:binding>
  <wsdl:service name="CalculatorService">
    <wsdl:port name="CalculatorServicePort" binding="tns:CalculatorServiceSoapBinding">
      <soap:address location="http://localhost:9090/CalculatorServicePort"/>
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>

生成 wsdl 后，我生成(使用插件)java 客户端 stub 。问题是，当我通过客户端尝试调用我的服务时，我的方法参数被忽略了。这是我使用 ngrep 看到的:

T 127.0.0.1:33602 -> 127.0.0.1:8080 [AP]
  POST /webservices/calcService HTTP/1.1..Content-Type: text/xml; charset=UTF-8..Accept: */*..SOAPAction: ""..User-Agent: Apache-CXF/3.3.6.
  .Cache-Control: no-cache..Pragma: no-cache..Host: 127.0.0.1:8080..Connection: keep-alive..Content-Length: 218....                        
##
T 127.0.0.1:33602 -> 127.0.0.1:8080 [AP]
  <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><ns2:addNumbers xmlns:ns2="http://cfx.foo.com/"><arg0>1.2</arg0><arg1>1.2</arg1></ns2:addNumbers></soap:Body></soap:Envelope>                                                        
##
T 127.0.0.1:8080 -> 127.0.0.1:33602 [AP]
  HTTP/1.1 500 Server Error..Date: Thu, 30 Apr 2020 15:38:13 GMT..Content-Type: text/xml;charset=utf-8..Content-Length: 322..Server: Jetty(
  9.4.z-SNAPSHOT)....<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><soap:Fault><faultcode>soap:Server</f
  aultcode><faultstring>null while invoking public double com.foo.cfx.CalculatorService.addNumbers(double,double) with params [
  null, null].</faultstring></soap:Fault></soap:Body></soap:Envelope>                                                                      
#######

如您所见， addNumbers 的两个参数都被传递，但它们被忽略。

这是堆栈

org.apache.cxf.interceptor.Fault: null while invoking public double com.temp.cfx.CalculatorService.addNumbers(double,double) with params [null, null].
    at org.apache.cxf.core@3.3.6/org.apache.cxf.service.invoker.AbstractInvoker.createFault(AbstractInvoker.java:166)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:140)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:74)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:59)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.interceptor.ServiceInvokerInterceptor$2.run(ServiceInvokerInterceptor.java:126)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:131)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
    at org.apache.cxf.core@3.3.6/org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:267)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:234)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:208)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:160)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:225)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:301)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:220)
    at javax.servlet.api@3.1.0/javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at org.apache.cxf.transport.http@3.3.6/org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:276)

任何人都可以帮助解决这个问题吗？

我做了一个测试项目，可以通过 mvn install运行 here .

Answer 1

看起来你有基于 wsdl 的不正确的命名空间

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
    <soap:Body>
        <ns2:addNumbers xmlns:ns2="http://webapp.mycompany.com/">
            <ns2:v1>1.2</ns2:v1>
            <ns2:v2>1.2</ns2:v2>
        </ns2:addNumbers>
    </soap:Body>
</soap:Envelope>     

更新

服务器方法

@WebService(name="CalculatorService", 
        serviceName="CalculatorService")
public class CalculatorService {

    @WebMethod
    public double addNumbers(@WebParam(name="value1") double v1, @WebParam(name="value2") double v2) {
        return v1 + v2;
    }
}

在你的情况下 cxf-java2ws-plugin正在生成一个 WSDL 文档(与您在集成测试中引用的文档相同)是带有 JAX WS 注释的文档。注意下面插件生成的 WSDL 和服务使用的实际 wsdl。注意元素表单默认值和本地元素。

插件生成的 WSDL

<xs:schema xmlns:tns="http://webapp.mycompany.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="unqualified" targetNamespace="http://webapp.mycompany.com/" version="1.0">

  <xs:element name="addNumbers" type="tns:addNumbers"/>

  <xs:complexType name="addNumbers">
    <xs:sequence>
      <xs:element name="value1" type="xs:double"/>
      <xs:element name="value2" type="xs:double"/>
    </xs:sequence>
  </xs:complexType>

服务实际 WSDL(使用 ServerFactoryBean 不考虑 JAX WS 注释)

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://webapp.mycompany.com/" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://webapp.mycompany.com/">

  <xsd:element name="addNumbers" type="tns:addNumbers"/>

  <xsd:complexType name="addNumbers">
    <xsd:sequence>
      <xsd:element name="v1" type="xsd:double"/>
      <xsd:element name="v2" type="xsd:double"/>
    </xsd:sequence>
  </xsd:complexType>

因此，您的请求在集成测试中失败，因为服务器不理解正在发送的请求。

修复是使用 JaxWsServerFactoryBean初始化 servlet 时。现在服务 wsdl 匹配插件生成的内容。

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://webapp.mycompany.com/" elementFormDefault="unqualified" targetNamespace="http://webapp.mycompany.com/" version="1.0">

 <xs:element name="addNumbers" type="tns:addNumbers"/>

 <xs:complexType name="addNumbers">
   <xs:sequence>
     <xs:element name="value1" type="xs:double"/>
     <xs:element name="value2" type="xs:double"/>
   </xs:sequence>
 </xs:complexType>