数据业务开发部案例16-异常处理机制不完善导致业务中断.doc

           AttributeGrid::iterator iter = m_Attributesgrid.find(pAttribute->m_bCode);
            if (iter != m_Attributesgrid.end())
            {
                //找到了重复的值
                (*iter).second.push_back(pAttribute);
            }
            else
            {
                //没找到
                AttributeArray array;
                array.push_back(pAttribute);
                AttributeGrid::value_type value(pAttribute->m_bCode, array);
                if (True != m_Attributesgrid.insert(value).second)
                {
                    //写失败
                    DELETE(pAttribute);
                }
            }
            wLength -= pAttribute->GetAllFieldLength();
        }        
        if (0 != wLength)
        {
            LOGWARN(" failed to Serialize Radius Message,Packet Out of order!");
            return False;
        }
    }
4 经验总结：预防措施和规范建议
代码编写时要严谨，多考虑异常情况
5 备注
6 考核点
try….catch(…) throw
7 试题
int funcA()
{
    int nRet = 0;
   
    ...
   
    return nRet;
}
void funcB()
{
    ...
   
    throw "exception";
}

对于这两个函数的调用，哪些比较合理(A、C)
A.
int nRet = funcA();
if (nRet)
{
    ...
}
else
{
    ...
}

B.
funcA();
...

C.
try
{
    funcB();
    ...
}
catch(...)
{
    ...
}

D.
funcB()
...