相关疑难解决方法(0)

我想将Jackson用作JAX-RS 2.0 Web服务的JSON提供程序.对于JAX-RS,我在GlassFish 4中使用Jersey 2.0.使用JAX-RS 1.x我可以添加

<init-param>
  <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
  <param-value>true</param-value>
</init-param>

在我的web.xml.我怎么能用Jersey 2.0的Jax-RS 2.0做到这一点？我实现了这样的应用程序类

public class MyRESTExampleApplication extends ResourceConfig {
    public MyRESTExampleApplication() {
         packages("com.carano.fleet4all.restExample");
         register(JacksonFeature.class);
    }
}

并将这些行添加到我的web.xml.

<init-param>
    <param-name>javax.ws.rs.Application</param-name>
    <param-value>com.example.restExample.MyRESTExampleApplication</param-value>
</init-param>

但是我通过请求org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException得到一个例外 :找不到媒体类型= application/json,type = class的MessageBodyWriter ...

我pom.xml看起来像这样

<dependencies>
  <dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-server</artifactId>
    <version>2.0</version>
    <scope>provided</scope>
  </dependency>
  <dependency>
    <groupId>org.glassfish.jersey.media</groupId>
    <artifactId>jersey-media-json-jackson</artifactId>
    <version>2.0</version>
    <scope>provided</scope>
  </dependency>
</dependencies>