决解Connection is read-only. Queries leading to data modification are not allowed

决解Connection is read-only. Queries leading to data modification are not allowed

错误的原因 连接只允许用来读取数据 不能用来修改数据 举个例子 ,假如有下面这么个方法 boolean returnBo...
java事务未打开

java事务未打开

异常报错:       Write operations are not allowed ...
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