Missing required configuration "key.serializer" which has no default value.

SparkStreaming寫入Kafka報錯Missing required configuration "key.serializer" which has no default value. 這是由於你在KafkaParams參數時沒有指定key.serializer 將KafkaParams配置項設置爲如下格式就ok了 /** * 設置Kafka參數 */ val kafkaPar

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