使用Spring进行统一日志管理 + 统一异常管理

来源：互联网发布：淘宝九块邮优站编辑：程序博客网时间：2024/04/28 00:29

统一日志和异常管理配置好后，SSH项目中代码以往散落的log.info() 和 try..catch..finally 再也不见踪影，统一日志异常实现类。

1，统一日志处理实现类

package net.xnzz.util;import org.aopalliance.intercept.MethodInterceptor;import org.aopalliance.intercept.MethodInvocation;import org.apache.log4j.Logger;/** * Spring 统一日志处理实现类 * @author WANGJIE * */public class LogInterceptor implements MethodInterceptor {public Object invoke(MethodInvocation invocation) throws Throwable   {       Logger loger = Logger.getLogger(invocation.getClass());       loger.info("--Log By Andy Chan -----------------------------------------------------------------------------");       loger.info(invocation.getMethod() + ":BEGIN!--(Andy ChanLOG)");//方法前的操作        Object obj = invocation.proceed();// 执行需要Log的方法        loger.info(invocation.getMethod() + ":END!--(Andy ChanLOG)");//方法后的操作        loger.info("-------------------------------------------------------------------------------------------------");       return obj;   }}

2，自定义业务异常处理类

package net.xnzz.util;/** * 自定义业务异常处理类    友好提示   * @author WANGJIE * */public class BusinessException extends RuntimeException {private static final long serialVersionUID = 3152616724785436891L;        public BusinessException(String frdMessage)        {            super(createFriendlyErrMsg(frdMessage));        }        public BusinessException(Throwable throwable)        {            super(throwable);        }        public BusinessException(Throwable throwable, String frdMessage)        {            super(throwable);        }        private static String createFriendlyErrMsg(String msgBody)        {            String prefixStr = "抱歉";            String suffixStr = " 请稍后再试或与管理员联系";            StringBuffer friendlyErrMsg = new StringBuffer("");            friendlyErrMsg.append(prefixStr);            friendlyErrMsg.append(msgBody);            friendlyErrMsg.append(suffixStr);            return friendlyErrMsg.toString();        }   }

3，异常处理类

package net.xnzz.util;import java.io.IOException;import java.lang.reflect.Method;import java.sql.SQLException;import org.apache.log4j.Logger;import org.springframework.aop.ThrowsAdvice;import org.springframework.dao.DataAccessException;/** * 由Spring AOP调用 输出异常信息把程序异常抛向业务异常   * @author WANGJIE * */public class ExceptionAdvisor implements ThrowsAdvice {public void afterThrowing(Method method, Object[] args, Object target, Exception ex) throws Throwable   {       // 在后台中输出错误异常异常信息通过log4j输出。        Logger log = Logger.getLogger(target.getClass());      log.info("***********************************************************");       log.info("Error happened in class: " + target.getClass().getName());    log.info("Error happened in method: " + method.getName());       for (int i = 0; i < args.length; i++)       {           log.info("arg[" + i + "]: " + args[i]);       }       log.info("Exception class: " + ex.getClass().getName());       log.info("ex.getMessage():" + ex.getMessage());       ex.printStackTrace();       log.info("***********************************************************");          // 在这里判断异常根据不同的异常返回错误。        if (ex.getClass().equals(DataAccessException.class))       {           ex.printStackTrace();           throw new BusinessException("数据库操作失败");       }     else if (ex.getClass().toString().equals(NullPointerException.class.toString()))       {           ex.printStackTrace();           throw new BusinessException("调用了未经初始化的对象或者是不存在对象");       }     else if (ex.getClass().equals(IOException.class))       {           ex.printStackTrace();           throw new BusinessException("IO异常");       }     else if (ex.getClass().equals(ClassNotFoundException.class))       {           ex.printStackTrace();           throw new BusinessException("指定的类不存在");       }     else if (ex.getClass().equals(ArithmeticException.class))    {           ex.printStackTrace();           throw new BusinessException("数学运算异常");       } else if (ex.getClass().equals(ArrayIndexOutOfBoundsException.class))       {           ex.printStackTrace();           throw new BusinessException("数组下标越界!");       }     else if (ex.getClass().equals(IllegalArgumentException.class))     {           ex.printStackTrace();           throw new BusinessException("方法的参数错误");       }     else if (ex.getClass().equals(ClassCastException.class))       {           ex.printStackTrace();           throw new BusinessException("类型强制转换错误");       }     else if (ex.getClass().equals(SecurityException.class))       {           ex.printStackTrace();           throw new BusinessException("违背安全原则异常");       }    else if (ex.getClass().equals(SQLException.class))       {           ex.printStackTrace();           throw new BusinessException("操作数据库异常");       }     else if (ex.getClass().equals(NoSuchMethodError.class))       {           ex.printStackTrace();           throw new BusinessException("方法末找到异常");       }     else if (ex.getClass().equals(InternalError.class))       {           ex.printStackTrace();           throw new BusinessException("Java虚拟机发生了内部错误");       }     else       {   ex.printStackTrace();           throw new BusinessException("程序内部错误操作失败" + ex.getMessage());       }   }}

4，Spring配置文件添加

<!-- Spring 统一日志处理   LogInterceptor拦截器 配置 -->      <bean id="logLnterceptor" class="net.xnzz.util.LogInterceptor"/>   <!-- Spring 统一异常处理  ExceptionAdvisor配置 -->   <bean id="exceptionHandler" class="net.xnzz.util.ExceptionAdvisor"></bean>   <!-- Bean自动代理处理器 配置-->     <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator" >    <property name="beanNames">   <list>    <!-- 配置需要进行日志记录的Service和Dao -->   <value>*Dao</value>           <!-- 配置所有Service结尾命名的Bean即所有Service层的类都要经过exceptionHandler异常处理类 -->            <!--<value>*Service</value>   Service层的Bean ID 命名要以Service结尾 -->        </list>       </property>       <property name="interceptorNames">        <list>             <value>exceptionHandler</value>             <value>logLnterceptor</value>             <!--<value>transactionInterceptor</value>-->        </list>       </property>    </bean>

0 0