com.fasterxml.jackson.databind.ObjectMapper;

在引用的代码中，com.fasterxml.jackson.databind.ObjectMapper是Jackson库中的一个类，用于将Java对象序列化为JSON格式或将JSON格式反序列化为Java对象。
如果你在使用该类时遇到了错误信息java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper，这意味着你的项目中缺少了Jackson库的依赖。为了解决这个问题，你需要在你的pom文件中添加Jackson库的依赖。具体来说，你需要添加以下三个依赖项：jackson-core、jackson-annotations和jackson-databind。你可以使用以下代码片段添加这些依赖项：
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.8.2</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.0</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.2</version>
<scope>runtime</scope>
</dependency>
如果你已经添加了这些依赖项，但仍然出现该错误，可能是因为你的项目没有正确引入这些依赖项。你可以尝试重新构建你的项目或者检查你的构建工具是否正确配置了这些依赖项。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [BSONforJackson.zip](https://download.csdn.net/download/weixin_39840924/11357237)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *2* *3* [com/fasterxml/jackson/databind/ObjectMapper](https://blog.csdn.net/paj123456789/article/details/114447818)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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