杰克逊错误：java.lang.NoClassDefFoundError：com/fasterxml/jackson/core/Versioned

Hymanson error: java.lang.NoClassDefFoundError: com/fasterxml/Hymanson/core/Versioned

提问by ???? ?? ??????

I am working on Maven-EJB and want to convert a java object to JSON, I use Hymanson jars lib but I got:

我正在研究 Maven-EJB 并想将 java 对象转换为 JSON，我使用 Hymanson jars lib，但我得到了：

java.lang.ClassNotFoundException: com.fasterxml.Hymanson.core.Versioned

java.lang.ClassNotFoundException: com.fasterxml.Hymanson.core.Versioned

I added these dependencies in pom.xml file:

我在 pom.xml 文件中添加了这些依赖项：

    <dependency>
        <groupId>com.fasterxml.Hymanson.core</groupId>
        <artifactId>Hymanson-databind</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.core</groupId>
        <artifactId>Hymanson-core</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.core</groupId>
        <artifactId>Hymanson-annotations</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.jaxrs</groupId>
        <artifactId>Hymanson-jaxrs-json-provider</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.module</groupId>
        <artifactId>Hymanson-module-jaxb-annotations</artifactId>
        <version>2.4.0</version>
    </dependency>        
</dependencies>

    <dependency>
        <groupId>com.fasterxml.Hymanson.core</groupId>
        <artifactId>Hymanson-databind</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.core</groupId>
        <artifactId>Hymanson-core</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.core</groupId>
        <artifactId>Hymanson-annotations</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.jaxrs</groupId>
        <artifactId>Hymanson-jaxrs-json-provider</artifactId>
        <version>2.4.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.Hymanson.module</groupId>
        <artifactId>Hymanson-module-jaxb-annotations</artifactId>
        <version>2.4.0</version>
    </dependency>        
</dependencies>

in Java Facade I write this lines to convert:

在 Java Facade 中，我写了以下几行来转换：

String json = "";

    try {
         ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
         json = ow.writeValueAsString(userlist);
    } catch (JsonProcessingException e) {
        throw new BusinessException("error_json");
    }

字符串 json = "";

    try {
         ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
         json = ow.writeValueAsString(userlist);
    } catch (JsonProcessingException e) {
        throw new BusinessException("error_json");
    }

and here is the imports:

这是进口：

import com.fasterxml.Hymanson.core.JsonProcessingException; import com.fasterxml.Hymanson.databind.ObjectMapper; import com.fasterxml.Hymanson.databind.ObjectWriter;

导入 com.fasterxml.Hymanson.core.JsonProcessingException; 导入 com.fasterxml.Hymanson.databind.ObjectMapper; 导入 com.fasterxml.Hymanson.databind.ObjectWriter;

I checked the classpath and make a lot of clean and build but no way,,,the same exception appear!!

我检查了类路径并进行了很多清理和构建，但没有办法，，出现相同的异常！！

I am working on NetBeans8 and Java 1.7

我正在研究 NetBeans8 和 Java 1.7

Thanks in advance Mariam

提前致谢

采纳答案by ???? ?? ??????

Thanks Couettos, it works, I checked the versions of application server and the maven jars then I downloaded the latest 2.4.0 Hymanson jars and upgrade the glassfish lib jars with the 2.4.0 version

谢谢 Couettos，它有效，我检查了应用程序服务器和 Maven jar 的版本，然后我下载了最新的 2.4.0 Hymanson jar 并使用 2.4.0 版本升级了 glassfish lib jar