Yes, Joy of Life and The Night of Generals were written by the same author.

Joy of Life did have a character like Ye Chong. He was a character in the novel Joy of Life. He was Ye Liuyun's nephew and disciple, and also the Qing Emperor's most loyal military representative. Ye Chong had once served as the commander of the Jingdou Garrison and the Minister of the Bureau of Military Affairs. He had rich military experience and commanding abilities. He was good at using a unique martial arts technique like the Coffin Breaker. In battle, he displayed outstanding fighting ability and tacit cooperation with Fan Xian.
Joy of Life did have a character like Ye Chong. He was a character in the novel Joy of Life. He was Ye Liuyun's nephew and disciple, and also the Qing Emperor's most loyal military representative. Ye Chong had once served as the commander of the Jingdou Garrison and the Minister of the Bureau of Military Affairs. He had rich military experience and commanding abilities. He was good at using a unique martial arts technique like Coffin Breaker. In battle, he displayed outstanding fighting ability and tacit cooperation with Fan Xian.