确定有setter方法，问题其实是xml文件中，insert的主键的列名写错了，如下，一开始写成ComId
<insert id="insertCom" parameterType="Comment" useGeneratedKeys="true" keyProperty="comId">
mybatis插入出现org.apache.ibatis.executor.ExecutorException: No setter found for the keyProperty 'xxx'异常的原因
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mybatis中的异常记录————01（org.apache.ibatis.executor.ExecutorException）
Mybatis报错Cause: org.apache.ibatis.executor.ExecutorException: Executor was closed.
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