Question

虽然我们在blueprint.xml中将Jackson指定为jax-rs提供程序，但我们没有发现它被调用/调用以将我们的POJO转换为JSON。我们用 CXF版本 - 3.0.3 卡拉夫版 - 3.0.3

<jaxrs:server address="/test" id="totest">
        <jaxrs:serviceBeans>
            <ref component-id="testREST"/>
        </jaxrs:serviceBeans>
        <jaxrs:providers>
                <bean class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider"/>
        </jaxrs:providers>   
    </jaxrs:server>

我们得到以下异常，我们观察到被调用的org.apache.cxf.jaxrs.provider.json.JSONProvider。

  at org.apache.cxf.jaxrs.provider.AbstractJAXBProvider.handleExceptionEnd(AbstractJAXBProvider.java:719)
        at org.apache.cxf.jaxrs.provider.AbstractJAXBProvider.handleJAXBException(AbstractJAXBProvider.java:743)
        at org.apache.cxf.jaxrs.provider.json.JSONProvider.writeTo(JSONProvider.java:395)
        at org.apache.cxf.jaxrs.utils.JAXRSUtils.writeMessageBody(JAXRSUtils.java:1363)
        at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:244)
        at org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:117)

更新信息

POM.xml with all related jars as dependency.

        <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-annotations</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-core</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.datatype</groupId>
                <artifactId>jackson-datatype-json-org</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.module</groupId>
                <artifactId>jackson-module-jaxb-annotations</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.jaxrs</groupId>
                <artifactId>jackson-jaxrs-base</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.jaxrs</groupId>
                <artifactId>jackson-jaxrs-json-provider</artifactId>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>org.json</groupId>
                <artifactId>json</artifactId>
                <version>20131018</version>
            </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxws</artifactId>
            <version>${cxf.version}</version>
            <scope>provided</scope>
        </dependency>

         <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxrs</artifactId>
            <version>${cxf.version}</version>
            <scope>provided</scope>
         </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http</artifactId>
            <version>${cxf.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-bundle-jaxrs</artifactId>
            <version>2.6.16</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http-jetty</artifactId>
            <version>${cxf.version}</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

由于

Answer 1

您需要将所有与jackson相关的jar提供给服务器 - 作为Web项目的WEB-INF / lib的一部分，或作为服务器库或模块。看来你目前只有cxf.jar，这就是为什么杰克逊在其中打包的原因。当您在服务器上运行应用程序时，在执行线程到达您的jackson注释时，它会尝试在运行时找到相应的jar。它可以找到的唯一相关jar似乎是cxf。

JAX-RS提供程序已注册但从未调用或调用过

1 个答案: