The right way to create new Exception - 未名空间MITBBS历史存档

国际科技财经博客移民网络热点娱乐民生时事公众号

Redian新闻

>未名空间

>Java - 爪哇娇娃

The right way to create new Exception

The right way to create new Exception# Java - 爪哇娇娃

p*p2006-10-06 07:10

1 楼

Sometime I need to catch a exception and create a new one,
} catch (oldException e) {
throw new newExcetion(e.getMessage());
}
e.getMessage() the right way to hand off exception information? Seem some
infor get lost after some jumps.

p*p2006-10-06 07:10

2 楼

3ks ... one more question, getMessage and StackTrace, what is the difference
A cause can be associated with a throwable in two ways: via a constructor
that takes the cause as an argument, or via the initCause(Throwable) method.
New throwable classes that wish to allow causes to be associated with them
should provide constructors that take a cause and delegate (perhaps
indirectly) to one of the Throwable constructors that takes a cause. For
example:
try {
lowLevelOp();
} catch

g*s2006-10-06 07:10

3 楼

initCause(Throwable cause)

exception

【在 p***p 的大作中提到】

: 3ks ... one more question, getMessage and StackTrace, what is the difference
: A cause can be associated with a throwable in two ways: via a constructor
: that takes the cause as an argument, or via the initCause(Throwable) method.
: New throwable classes that wish to allow causes to be associated with them
: should provide constructors that take a cause and delegate (perhaps
: indirectly) to one of the Throwable constructors that takes a cause. For
: example:
: try {
: lowLevelOp();
: } catch

p*p2006-10-06 07:10

4 楼