带有gradle的泽西测试框架-MessageBodyProviderNotFinder

Question

我有一个有点困难的情况。我正在使用泽西提供REST服务。

在我的运行时中，我使用版本1.16.0执行此操作：

restClasspath(
'org.codehaus.jackson:jackson-core-asl:1.9.2',
'org.codehaus.jackson:jackson-mapper-asl:1.9.2',
'com.sun.jersey:jersey-core:1.16.0',
'com.sun.jersey:jersey-server:1.16.0',
)

这是我的资源类：

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import ....model.DecisionTree;
import ...model.TestDataProvider;

@Path("new_rest")
public class NewPublicAPIRestResource {

  @GET
  @Produces(MediaType.APPLICATION_JSON)
  @Path("ppp/{param}")
  public Response getHello(@PathParam("param") String treeName) {
      DecisionTree tree = TestDataProvider.createDecisionTree();
      return Response.ok(tree).build();
  }  
}

这是有效的，我得到了预期的json响应。

现在我找到了一个为集成测试提供内存服务器的杰西测试框架。

不幸的是，这似乎只适用于泽西2。x、 所以我为我的测试添加了一个额外的梯度设置：

testClasspath(
'org.glassfish.jersey.core:jersey-common:2.7',
'org.glassfish.jersey.core:jersey-server:2.7',
'org.glassfish.jersey.core:jersey-client:2.7',
'org.glassfish.hk2:hk2:2.2.0',
'org.glassfish.jersey.test-framework.providers:jersey-test-framework-provider-inmemory:2.7',    
 )

这是我的测试课：

import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;
import org.junit.Test;    
import ...resource.NewPublicAPIRestResource;

public class ConditionNodeTest extends JerseyTest{

    @Override
    protected Application configure() {
        return new ResourceConfig(NewPublicAPIRestResource.class);
    }

    @Test
    public void test() {
        System.out.println(target("new_rest/ppp/param").request().get(String.class));
    }
}

只要我的资源返回字符串，这个设置就可以运行。但是，只要我返回一个响应，如这里的代码所示，我就会得到以下错误：

javax.ws.rs.ProcessingException: Server-side request processing failed with an error.
    ...
    at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:424)
    at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:667)
    at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:396)
    at org.glassfish.jersey.client.JerseyInvocation$Builder.get(JerseyInvocation.java:296)
    at ....model.ConditionNodeTest.test(ConditionNodeTest.java:39)
    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:497)
    ...
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    ...
Caused by: org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: MessageBodyWriter not found for media type=application/json, type=class ....model.DecisionTree, genericType=class ....model.DecisionTree.
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.aroundWriteTo(WriterInterceptorExecutor.java:247)
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:162)
    at org.glassfish.jersey.server.internal.JsonWithPaddingInterceptor.aroundWriteTo(JsonWithPaddingInterceptor.java:103)
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:162)
    at org.glassfish.jersey.server.internal.MappableExceptionWrapperInterceptor.aroundWriteTo(MappableExceptionWrapperInterceptor.java:88)
    at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:162)
    at org.glassfish.jersey.message.internal.MessageBodyFactory.writeTo(MessageBodyFactory.java:1154)
    at org.glassfish.jersey.server.ServerRuntime$Responder.writeResponse(ServerRuntime.java:571)
    at org.glassfish.jersey.server.ServerRuntime$Responder.processResponse(ServerRuntime.java:378)
    at org.glassfish.jersey.server.ServerRuntime$Responder.process(ServerRuntime.java:368)
    at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:262)
    ... 44 more

据我所知，我缺少一些将我的类解析为json的提供程序，但我只是不知道是哪一个。我尝试向我的类路径添加一些库，如下所示：

'org.glassfish.jersey.media:jersey-media-jaxb:2.16'
'org.glassfish.jersey.media:jersey-media-json-jackson:2.7

还有其他几个我记不清了，但没有成功。

你知道我这里缺少什么吗？

谢了斯文

Answer 1

这是正确的

'org.glassfish.jersey.media:jersey-media-json-jackson:2.7'

但是在泽西2.9之前，我们仍然需要向应用程序注册JacksonFeature（如这里所述）。所以就这样做吧

@Override
protected Application configure() {
    return new ResourceConfig(NewPublicAPIRestResource.class)
            .register(JacksonFeature.class);
}

哦，顺便说一句，泽西岛1号。x还有Jersey测试框架。只是API有点不同，但它的功能还是一样的。请参阅这里和这里的示例，这里是内存提供程序。但无论如何，我建议坚持穿球衣2。x。