使用Spring进行统一日志管理 + 统一异常管理

http://blog.csdn.net/king87130/article/details/8011843原文地址

统一日志异常实现类：

 1 package com.pilelot.web.util;

 import org.apache.log4j.Logger;
 import org.springframework.aop.ThrowsAdvice;
 import org.springframework.dao.DataAccessException;

 import java.io.IOException;
 import java.lang.reflect.Method;
 import java.sql.SQLException;

 /**
  * 由Spring AOP调用 输出异常信息，把程序异常抛向业务异常
  *
  * @author Andy Chan
  *
  */
 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的对象！");
         } 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());
         }
     }
 }

 自定义业务异常处理类 友好提示：

 package com.pilelot.web.util;

 /**
  * 自定义业务异常处理类    友好提示
  * @author Andy Chan
  *
  */
 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();
     }

统一日志处理实现类：

package com.pilelot.web.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 Andy Chan
 *
 */
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;
    }

}

Spring配置文件添加：

    <!-- Spring 统一日志处理   LogInterceptor拦截器 配置　-->
    <bean id="logLnterceptor" class="com.pilelot.web.util.LogInterceptor"/>
    <!-- Spring 统一异常处理  ExceptionAdvisor配置 -->
    <bean id="exceptionHandler" class="com.pilelot.web.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>commonDao</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>
<!-- ——————————————————Spring 统一日志处理 + 统一异常处理  配置结束—————————————悲伤的分隔线—————————— -->

 }