使用 Jackson ObjectMapper 时出现 ClassNotFound 异常

发布于 2024-12-29 11:43:06 字数 1638 浏览 2 评论 0原文

我有一个 Spring 3 MVC 应用程序，我正在为其设置一些 ajax 操作。我的控制器操作如下所示：

@RequestMapping(value="add", method=RequestMethod.POST)
@Secured("ROLE_USER")
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody Plan addPlan(@RequestBody Plan plan, Principal principal) {
     //Save the plan
}

当我从浏览器发布 Plan 数据时，应用程序会抛出 ClassNotFound 异常：

java.lang.ClassNotFoundException: org.joda.time.ReadableInstant not found by jackson-mapper-asl [176]
at org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:787)
at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

Plan 对象本身不包含任何 joda-date 类型。尽管它包含一组可以做到这一点的对象。最初，我通过 DOA jar 引入 joda-date jar，但即使我向 Web 项目的 pom.xml 添加直接依赖项，错误仍然存在。我在这个项目的其他地方使用 joda 类，没有任何问题。

其他信息 以下是我的 web pom.xml 中的相关依赖项：

<dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.0</version>
</dependency>
<dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-core-asl</artifactId>
        <version>1.9.3</version>
</dependency>
<dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>1.9.3</version>
</dependency>

原文

I have a Spring 3 MVC app that I am setting up some ajax actions for.
My controller action looks like this:

@RequestMapping(value="add", method=RequestMethod.POST)
@Secured("ROLE_USER")
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody Plan addPlan(@RequestBody Plan plan, Principal principal) {
     //Save the plan
}

When I post the Plan data from my browser the app throws a ClassNotFound exception:

java.lang.ClassNotFoundException: org.joda.time.ReadableInstant not found by jackson-mapper-asl [176]
at org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:787)
at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

The Plan object itself does not contain any joda-date types. Though it contains a collection of objects that do. Originally I was pulling in the joda-date jar via my DOA jar but the error persists even if I add a direct dependency to my web project's pom.xml. I'm using the joda classes elsewhere in this project without any issue.

Additional information
Here are the relevant dependencies from my web pom.xml:

<dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.0</version>
</dependency>
<dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-core-asl</artifactId>
        <version>1.9.3</version>
</dependency>
<dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>1.9.3</version>
</dependency>

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