CXF @PUT请求"No message body writer has been found"异常

Question

我完全被困住了！花了很多时间在这上面没有进展......

我有一个带有 CXF 3 （3.1.4） 的 Spring 4 （4.2.3.RELEASE） 应用程序，我正在尝试对其进行 JUnit 测试。除了 PUT 请求外，一切都运行良好。我收到以下错误：

Caused by: org.apache.cxf.interceptor.Fault: No message body writer has been found for class com.someproject.logic.api.data.User, ContentType: application/xml
    at org.apache.cxf.jaxrs.client.WebClient$BodyWriter.doWriteBody(WebClient.java:1222)
    at org.apache.cxf.jaxrs.client.AbstractClient$AbstractBodyWriter.handleMessage(AbstractClient.java:1091)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
    at org.apache.cxf.jaxrs.client.AbstractClient.doRunInterceptorChain(AbstractClient.java:649)
    at org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:1093)
    ... 49 more

原因：javax.ws.rs.ProcessingException：找不到 com.someproject.logic.api.data.User 类的消息正文编写器，内容类型：application/xml at org.apache.cxf.jaxrs.client.AbstractClient.reportMessageHandlerProblem（AbstractClient.java：780） at org.apache.cxf.jaxrs.client.AbstractClient.writeBody（AbstractClient.java：494） at org.apache.cxf.jaxrs.client.WebClient$BodyWriter.doWriteBody（WebClient.java：1217） ...还有 53 个

我也尝试使用"application/json"并得到了相同的结果。

以下是 CXF 配置：

@Bean
@DependsOn("cxf")
public Server jaxRsServer() {
    JAXRSServerFactoryBean sf = new JAXRSServerFactoryBean();
    List<Object> providers = new ArrayList<Object>();
    // get all the class annotated with @JaxrsService
    List<Object> beans = configUtil.findBeans(JaxrsService.class);
    if (beans.size() > 0) {
        // add all the CXF service classes into the CXF stack
        sf.setServiceBeans(beans);
        sf.setAddress("http://localhost:8080/api");
        sf.setBus(springBus);
        sf.setStart(true);
        // set JSON as the response serializer
        JacksonJsonProvider provider = new JacksonJsonProvider();
        providers.add( provider );
    }
    // add custom providers if any
    sf.setProviders(providers);
    return sf.create();
}

端点：

@Path("/user")
@PUT
@Consumes({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON, })
@Produces( MediaType.APPLICATION_JSON )
public User updateUser( User user );

端点 impl：

@Override
public User updateUser( User user ) {
    System.out.println( "updateUser: " + user );
    return user;
}

测试：

@Before
public void setUp() throws Exception {
    MockitoAnnotations.initMocks(this);
    webClient = WebClient.create( "http://localhost:8080/api" );
    WebClient.getConfig( webClient ).getRequestContext().put( LocalConduit.DIRECT_DISPATCH, Boolean.TRUE );
    webClient.accept( "application/json" );
}
@Test
public void testPut() {
    String apiUrl = "/user";
    webClient.path( apiUrl );
    User user = createDummyAPIUser();
    try {
        System.out.println( "testUpdateUser: PUT request to " + apiUrl );
        String response = webClient.type( MediaType.APPLICATION_JSON ).put( user, String.class );
        System.out.println( "testUpdateUser: " + apiUrl + " response: " + response );
        //updatedUser = (new ObjectMapper()).readValue( response, User.class );
    } catch( Exception e ) {
        e.printStackTrace();
        fail();
        return;
    }
}

首先，如何确保 fasterxml Jackson 2 提供程序实际上正在序列化消息正文？它在堆栈跟踪中看不到任何杰克逊，但我确实在提供程序中设置了它。

我发现此链接用于演示自定义上下文提供程序，这是使其工作的唯一方法吗？似乎完全多余...http://www.blackpepper.co.uk/custom-context-providers-for-cxf-with-the-context-annotation/

有什么想法吗？

谢谢！！

Answer 1

GEEEEEEZZZ...

感觉像个笨蛋，忘了向客户端添加相同的杰克逊序列化程序（提供程序）。再次查看堆栈跟踪，我注意到这些方法仅来自客户端，因此显然客户端不知道如何使用我扔给它的 POJO......

更新的测试代码：

@Before
public void setUp() throws Exception {
    MockitoAnnotations.initMocks(this);
    final List<Object> providers = new ArrayList<Object>();
    JacksonJaxbJsonProvider jacksonJsonProvider = new JacksonJaxbJsonProvider();
    providers.add( jacksonJsonProvider );
    webClient = WebClient.create( "http://localhost:8080/api", providers );
    WebClient.getConfig( webClient ).getRequestContext().put( LocalConduit.DIRECT_DISPATCH, Boolean.TRUE );
    webClient.accept( "application/json" );
}