允许servlet容器处理异常的问题在于，这严重限制了错误页面上显示的内容，并且禁止了事务回滚。

The problem with allowing the servlet container to handle exceptions is that it severely limits what can be displayed on the resulting error page and makes transactional rollbacks all but impossible.

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但是一般限制为80个字符，这容易适合大多数显示器的一个打印页面。

But common sense implies a limit of 80 characters, which fits easily on a printed page on most monitors. There are several ways to spread a code statement over more than one line.

youdao