java - ExceptionMapper 在 JerseyTest 框架中不起作用

Question

我为特定对象创建了一个 RESTFUL-API 并javax.validation.Constraints用于验证，当我执行应用程序时，它按预期工作并且 ExceptionMapper 类已正确执行，但是当我尝试使用 JerseyFramework 自动化测试时，ExceptionMapper 未执行或处理。所以它在应用程序中有效，但在我测试时无效。

启动应用程序的主类

package com.carlos.zerga.server; 
public class App  {
    public static void main( String[] args ) throws Exception {

        AppResourceConfig config = new AppResourceConfig();
        ServletHolder jerseyServlet
                = new ServletHolder(new ServletContainer(config));

        Server server = new Server(8081);
        ServletContextHandler context
                = new ServletContextHandler(server, "/");

        context.addServlet(jerseyServlet, "/*");

        server.start();
        server.join();
   } 
}

应用程序的资源配置

package com.carlos.zerga.server;
public class AppResourceConfig extends ResourceConfig{

    public AppResourceConfig() {
        register(new PropertiesBinder());
        register(EntityValidationExceptionMapper.class);
       packages(true,"com.carlos.zerga.properties");
    }
}

ValidationExceptions 的 ExceptionMapper

package com.carlos.zerga.properties.presentation.handler;
@Provider
public class EntityValidationExceptionMapper implements    
ExceptionMapper<BeanValidationException> {

    public Response toResponse(BeanValidationException e) {

        return Response.status(200).
                type(MediaType.APPLICATION_JSON_TYPE).
                entity(buildResponse((ConstraintViolationException) e.getInternalException())).
                build();
    }
    private ExceptionResponse buildResponse(ConstraintViolationException e)
    {
        ArrayList<String> messages = new ArrayList<String>();
        for(ConstraintViolation constraintViolation:e.getConstraintViolations())
        {
             messages.add(constraintViolation.getMessage());
        }
        return new ExceptionResponse(200, messages,e.getClass().getSimpleName());
    }

}

资源类

package com.carlos.zerga.properties.presentation;
@Path("property")
public class PropertiesApiResource {

    @POST
    @Path("new")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public Property createProperty(Property property)
    {
        return property;
    }
    //LOT OF OTHER ROUTES
    ......
}

测试用例

package com.carlos.zerga.test.properties.presentation;

@RunWith(DataProviderRunner.class)
public class PropertiesApiResourceTest extends JerseyTest {

    @Override
    protected Application configure() {

        return new ResourceConfig()
            .register(new PropertiesBinder())
            .register(new EntityValidationExceptionMapper())
            .register(new ConstraintValidationException())
            .packages(true,"com.carlos.zerga.properties");
     }
     //Here comes the error
     @Test
     @UseDataProvider("provideInvalidPropertiesPSR_PA")
     public void testInValidPropertyCreation(Property property)
     {
        Response response=target("property/new").request(MediaType.APPLICATION_JSON).method("POST",Entity.json(property));
        assertEquals(response.getMediaType(),MediaType.APPLICATION_JSON_TYPE);
        String exceptionResponse=response.readEntity(String.class);
        System.out.print(exceptionResponse);
    }

POM.xml

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-server</artifactId>
        <version>${jersey.version}</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.containers</groupId>
        <artifactId>jersey-container-servlet-core</artifactId>
        <version>${jersey.version}</version>
    </dependency>

    <dependency>
        <groupId>org.eclipse.jetty</groupId>
        <artifactId>jetty-server</artifactId>
        <version>${jetty.version}</version>
    </dependency>

    <dependency>
        <groupId>org.eclipse.jetty</groupId>
        <artifactId>jetty-servlet</artifactId>
        <version>${jetty.version}</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-moxy</artifactId>
        <version>${jersey.version}</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.hk2</groupId>
        <artifactId>hk2-metadata-generator</artifactId>
        <version>2.4.0</version>
    </dependency>
    <dependency>
        <groupId>com.tngtech.java</groupId>
        <artifactId>junit-dataprovider</artifactId>
        <version>1.12.0</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.test-framework</groupId>
        <artifactId>jersey-test-framework-core</artifactId>
        <version>${jersey.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.test-framework.providers</groupId>
        <artifactId>jersey-test-framework-provider-jetty</artifactId>
        <version>${jersey.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.ext</groupId>
        <artifactId>jersey-bean-validation</artifactId>
        <version>${jersey.version}</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.connectors</groupId>
        <artifactId>jersey-jetty-connector</artifactId>
        <version>${jersey.version}</version>
        <scope>test</scope>
    </dependency>


</dependencies>
<properties>
    <jersey.version>2.26-b03</jersey.version>
    <jetty.version>9.2.14.v20151106</jetty.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

当我通过邮递员发送时，它会返回我想要的东西：

{"errorCode":200,"errors":["Bathroom : Amount bathrooms can't be empty"],"errorDescription":"ConstraintViolationException"}

但是当我运行测试时，我会返回：

    javax.ws.rs.ProcessingException:
    Exception Description: Constraints violated on marshalled bean:
    com.carlos.zerga.properties.domain.entity.Property@3caeaf62
    -->Violated constraint on property bathRooms: "Bathroom : Minimun amout of bathrooms is 3".
    -->Violated constraint on property bedRooms: "Bathroom : Minimun amout of bathrooms is 3".
    Internal Exception: javax.validation.ConstraintViolationException

    at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:262)
    at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:759)
    at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:756)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:407)
    at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:756)
    at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:443)
    at com.carlos.zerga.test.properties.presentation.PropertiesApiResourceTest.testInValidPropertyCreation(PropertiesApiResourceTest.java:93)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at com.tngtech.java.junit.dataprovider.DataProviderFrameworkMethod.invokeExplosively(DataProviderFrameworkMethod.java:77)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    Caused by: Exception [EclipseLink-7510] (Eclipse Persistence Services - 2.6.4.v20160829-44060b6): org.eclipse.persistence.exceptions.BeanValidationException
    Exception Description: Constraints violated on marshalled bean:
    com.carlos.zerga.properties.domain.entity.Property@3caeaf62
    -->Violated constraint on property bathRooms: "Bathroom : Minimun amout of bathrooms is 3".
    -->Violated constraint on property bedRooms: "Bathroom : Minimun amout of bathrooms is 3".
    Internal Exception: javax.validation.ConstraintViolationException
    at org.eclipse.persistence.exceptions.BeanValidationException.constraintViolation(BeanValidationException.java:53)
    at org.eclipse.persistence.jaxb.JAXBBeanValidator.buildConstraintViolationException(JAXBBeanValidator.java:391)
    at org.eclipse.persistence.jaxb.JAXBBeanValidator.validate(JAXBBeanValidator.java:275)
    at org.eclipse.persistence.jaxb.JAXBMarshaller.validateAndTransformIfNeeded(JAXBMarshaller.java:604)
    at org.eclipse.persistence.jaxb.JAXBMarshaller.marshal(JAXBMarshaller.java:494)
    at org.eclipse.persistence.jaxb.rs.MOXyJsonProvider.writeTo(MOXyJsonProvider.java:957)
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.invokeWriteTo(WriterInterceptorExecutor.java:265)
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.aroundWriteTo(WriterInterceptorExecutor.java:250)
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:162)
    at org.glassfish.jersey.message.internal.MessageBodyFactory.writeTo(MessageBodyFactory.java:1126)
    at org.glassfish.jersey.client.ClientRequest.doWriteEntity(ClientRequest.java:517)
    at org.glassfish.jersey.client.ClientRequest.writeEntity(ClientRequest.java:499)
    at org.glassfish.jersey.client.internal.HttpUrlConnector._apply(HttpUrlConnector.java:393)
    at org.glassfish.jersey.client.internal.HttpUrlConnector.apply(HttpUrlConnector.java:285)
    at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:253)
    ... 34 more
    Caused by: javax.validation.ConstraintViolationException
    at org.eclipse.persistence.jaxb.JAXBBeanValidator.buildConstraintViolationException(JAXBBeanValidator.java:389)
    ... 47 more

score 2 · Accepted Answer

如果您仔细查看堆栈跟踪，您会发现此错误实际上发生在客户端，甚至在请求到达服务器之前。原因是您使用的是 MOXy，它使用 JAXB，并且默认启用 JAXB bean 验证。您可以在堆栈跟踪中看到 JAXBBeanValidator 正在被调用，并且它发生在实体的客户端编组中。

有几个解决方案：

配置 MOXy 以禁用 bean 验证
不要使用 MOXy

配置 MOXy 以禁用 bean 验证

要配置 MOXy，您可以使用MoxyJsonConfig. 您实际上也应该在服务器端执行此操作，这样您就不会在服务器上获得双重验证。Jersey 提供的 bean 验证与 MOXy 提供的不同。

在 Test.java

@Override
public void configureClient(ClientConfig config) {
    config.register(new MoxyJsonConfig().setFormattedOutput(true)
            .property(MarshallerProperties.BEAN_VALIDATION_MODE, BeanValidationMode.NONE)
            .resolver());
}

该configureClient方法是JerseyTest您可以覆盖以配置Client. 您也可以将其注册MoxyJsonConfig到ResourceConfig服务器端。

不要使用 MOXy

我的解决方案是摆脱 MOXy，而使用 Jackson。只需将以下依赖项更改为下面的 Jackson

<!-- remove this -->
<dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-moxy</artifactId>
    <version>${jersey.version}</version>
</dependency>
<!-- use this -->
<dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-json-jackson</artifactId>
    <version>${jersey.version}</version>
</dependency>

并将@Valid标签添加到：

资源.java

...... MORE ROUTES
@POST
@Path("new")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Property createProperty(@Valid Property property){
    return property;
}
...... MORE ROUTES

Jackson 不会有这个问题，因为 Jackson 不做任何 bean 验证。除了这个问题，我个人的看法是，无论如何，Jackson 只是一个更好的 JSON 整体库。

注意：如果您关闭 MOXy 验证（无论是通过配置还是使用 Jackson），您将不再尝试捕获BeanValidationException（这是一个 MOXy）类，而是可以直接捕获ConstraintViolationException.

java - ExceptionMapper 在 JerseyTest 框架中不起作用

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