java.lang.ClassNotFoundException:当尝试使用Jackson而不是Johnzon作为JSON提供程序时,Apache TomEE中的javax.ws.rs.ext.MessageBodyReader

时间:2019-05-31 14:22:44

标签: java json tomcat jackson tomee-7

my original problem开始,我需要专门配置Apache TomEE以使用Jackson作为JSON提供程序(而不是默认的Johnzon)。

我在pom.xml中导入了以下内容

    <dependency>
        <!-- I only need this first one because otherwise it's ommited due to a conflict.... -->
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.9</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.jaxrs</groupId>
        <artifactId>jackson-jaxrs-json-provider</artifactId>
        <version>2.9.9</version>
    </dependency>

此后,我尝试了几种方法:

ejb-jar.xml 文件中提及提供者

<pojo-deployment  class-name="jaxrs-application">
    <properties>
        cxf.jaxrs.providers = com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider
    </properties>
</pojo-deployment>

用自定义类扩展JacksonJaxbJsonProvider并注册它:

 @Provider
 @Consumes(MediaType.APPLICATION_JSON)
 @Produces(MediaType.APPLICATION_JSON)
 public class TGJSONProvider extends JacksonJaxbJsonProvider {
 }

无论我做什么(即使我什么也没添加,我都有相同的问题:

2019-05-31 16:11:35 SEVERE org.apache.openejb.observer.ObserverManager$MethodInvocation invoke error invoking org.apache.tomee.webservices.TomeeJaxRsService@12bfd80d
java.lang.NoClassDefFoundError: javax/ws/rs/ext/MessageBodyReader
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    ...
    ...
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: javax.ws.rs.ext.MessageBodyReader
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 55 more

我想念什么/做错了什么?

谢谢。

0 个答案:

没有答案