unified exception framework（统一的异常框架） config目录下是相关配置文件，如果使用了spring的话，请把相关配置import到spring的上下文配置文件里,相关占位符${}需要设置具体的值。
exception.xml 异常处理的主要配置：
<!-- responsibility chain for exception handle -->
<bean id="exceptionHandlerChain"
class="ExceptionHandlerChain">
<property name="chain">
<list>
<bean id="logBackExceptionHandler"
class="LogBackExceptionHandler">
<property name="level" value="3" />
</bean>
<!--如果配置了mongodb异常处理resolver,则需要配置mongodb-context.xml,否则不需要-->
<bean id="mongoDBExceptionHandler"
class="MongoDBExceptionHandler">
<property name="level" value="2" />
<property name="asynFlag" value="true" /property>
</bean>
</list>
</property>
</bean>
<!-- thread pool for asyn handle -->
<!--如果异常处理resolver没有设置异步处理(asynFlag=true的)的话，不需要配置exceptionHandleExecutor-->
<bean id="exceptionHandleExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
<property name="threadNamePrefix" value="exceptionHandleExecutor" />
<property name="corePoolSize" value="20" />
<property name="maxPoolSize" value="20" />
<property name="queueCapacity" value="100000" />
</bean>
<!-- exception manager -->
<bean id="exceptionManager" class="ExceptionManager">
<property name="systemCode" value="YOUR SYSTEM CODE" />
<property name="ehc" ref="exceptionHandlerChain" />
<property name="exceptionHandleExecutor" ref="exceptionHandleExecutor"/>
</bean>
<!--切面配置，建议是将切面加在最上层,比如我这里是Controller-->
<!-- aop config -->
<aop:config>
<aop:pointcut id="unifiedException"
expression="execution(* com..*Controller.*(..))" />
<aop:advisor advice-ref="unifiedExceptionThrowsAdvice"
pointcut-ref="unifiedException" />
</aop:config>
<!-- throw advice -->
<bean id="unifiedExceptionThrowsAdvice"
class="UnifiedExceptionThrowsAdvice">
<property name="exceptionManager" ref="exceptionManager" />
</bean>
mongodb-contexnt.xml 记录异常日志到mongodb的配置:
<!-- Connection to MongoDB server -->
<mongo:db-factory host="${mongo.host}" port="${mongo.port}" dbname="${mongo.dbname}" username="${mongo.user}" password="${mongo.password}" />
<!-- MongoDB Template -->
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
<constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/>
</bean>
<!-- mongo repositories -->
<mongo:repositories base-package="com.roirrow.common.exception.handler.repository" />