class org.apache.kafka.common.serialization.StringSerializer is not an instance of org.apache.kafka.common.serialization.Deserializer

这个错误是由于在配置中将序列化器（serializer）错误地设置为反序列化器（deserializer）引起的。根据引用\[1\]和引用\[2\]的信息，错误信息显示了key.serializer的配置错误，将org.apache.kafka.common.serialization.StringSerializer错误地设置为了org.apache.kafka.common.serialization.Deserializer。这是一个配置错误，因为key.serializer应该是一个实现了org.apache.kafka.common.serialization.Serializer接口的类。同样，根据引用\[3\]的信息，错误信息还显示了key.deserializer的配置错误，将org.apache.kafka.common.serialization.StringDeserializer错误地设置为了org.apache.kafka.common.serialization.StringDeserializer。这也是一个配置错误，因为key.deserializer应该是一个实现了org.apache.kafka.common.serialization.Deserializer接口的类。要解决这个问题，你需要将key.serializer和key.deserializer的配置正确地设置为实现了相应接口的类。
#### 引用[.reference_title]
- *1* [class org.apache.kafka.common.serialization.StringSerializer is not an instance of org.apache.kafka.](https://blog.csdn.net/m0_58353740/article/details/129407257)[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^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [org.apache.kafka.common.serialization.StringDeserializer could not b](https://blog.csdn.net/weixin_46376562/article/details/125402974)[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^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [kafka消费者报错：Class org.apache.kafka.common.serialization.StringDeserializer could not be found.](https://blog.csdn.net/yixiaoqi2010/article/details/88987929)[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^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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