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

Question

我完全卡住了！花了很多时间在这上面没有任何进展...

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：未找到 class com.someproject.logic.api.data.User 的邮件正文作者，ContentType：application/xml 在 org.apache.cxf.jaxrs.client.AbstractClient.reportMessageHandlerProblem(AbstractClient.java:780) 在 org.apache.cxf.jaxrs.client.AbstractClient.writeBody(AbstractClient.java:494) 在 org.apache.cxf.jaxrs.client.WebClient$BodyWriter.doWriteBody(WebClient.java:1217) ... 还有 53 个

我也试过 "application/json" 得到了同样的结果。

这是 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 );

端点实现：

@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，我如何确保 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 Jackson 的任何内容，但我确实在提供程序中设置了它。

我发现这个 link 用于演示自定义 ContextProvider，这是让它工作的唯一方法吗？看起来完全多余... 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，忘了给客户端添加相同的 Jackson 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向其抛出的 POJO...

更新测试代码：

@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" );

}

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

CXF @PUT request "No message body writer has been found" exception

spring

cxf

junit4

cxf-client