Question

我正在使用Jersey 2.9和Jackson，在这里你可以找到依赖项：

 <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-client</artifactId>
  </dependency>

  <dependency>
        <groupId>org.glassfish.jersey.media</groupId>
        <artifactId>jersey-media-json-jackson</artifactId>
  </dependency>

当我执行此客户端代码时，我有一些像Student.class这样的POJO类，其中包含一些属性：

Student studentRequest = new Student(); 

Response response = target()
                .path("/students/register")
                .request(MediaType.APPLICATION_JSON_TYPE)
                .post(Entity.json(studentRequest), Response.class);

代码不起作用，我得到了这个例外：

javax.ws.rs.ProcessingException: com.fasterxml.jackson.jaxrs.base.ProviderBase._configForWriting(Lcom/fasterxml/jackson/databind/ObjectWriter;[Ljava/lang/annotation/Annotation;)Lcom/fasterxml/jackson/jaxrs/cfg/EndpointConfigBase;
    at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:233)
    at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:655)
    ...
    at 
Caused by: java.lang.AbstractMethodError: com.fasterxml.jackson.jaxrs.base.ProviderBase._configForWriting(Lcom/fasterxml/jackson/databind/ObjectWriter;[Ljava/lang/annotation/Annotation;)Lcom/fasterxml/jackson/jaxrs/cfg/EndpointConfigBase;
    at com.fasterxml.jackson.jaxrs.base.ProviderBase._configForWriting(ProviderBase.java:469)
...

任何人都知道为什么我会得到这个堆栈跟踪？

谢谢！

Answer 1

遇到同样的问题，在我的例子中，它通过maven依赖管理系统将实现作为依赖关系添加到pom.xml中的客户端来帮助修复java.lang.AbstractMethodError：

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.2.2</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.2.2</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.2.2</version>
    </dependency>

泽西岛2.9和杰克逊提供者

1 个答案: