当有控制器抛出异常时，SimpleMappingExceptionResolver负责营救，使用如下的定义配置，可以优美的处理任何从spring mvc控制器跑出来的java.lang.Exception
<
bean
id
="exceptionResolver"
class
="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"
>
<
property
name
="exceptionMappings"
>
<
props
>
<
prop
key
="java.lang.Excveption"
>
freindlyError
</
prop
>
</
props
>
</
property
>
</
bean
>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<property name="prefix">
<value>/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
系统会定位到freindlyError.jsp这个页面中
