捕捉到异常后, 原始异常的信息以及栈追溯信息应该被log下来或者向上传递,下面是一些关于java异常处理可能会出现问题的地方,希望对大家有所帮助!
不兼容代码例子:
代码语言:javascript复制 // Noncompliant - exception is lost
try { /* ... */ } catch (Exception e) { LOGGER.info("context"); }
// Noncompliant - exception is lost (only message is preserved)
try { /* ... */ } catch (Exception e) { LOGGER.info(e.getMessage()); }
// Noncompliant - exception is lost
try { /* ... */ } catch (Exception e) { throw new RuntimeException("context"); }
兼容代码例子:
代码语言:javascript复制try { /* ... */ } catch (Exception e) { LOGGER.info(e); }
try { /* ... */ } catch (Exception e) { throw new RuntimeException(e); }
try {
/* ... */
} catch (RuntimeException e) {
doSomething();
throw e;
} catch (Exception e) {
// Conversion into unchecked exception is also allowed
throw new RuntimeException(e);
}
e.getMessage获得的异常信息远不如直接通过logger.log(Level.SEVERE,"",异常对象)这个方式记录的信息全,强烈建议采用后者
来记录异常信息。