spring 全局的異常處理

時間 2019-11-21

標籤 spring 全局異常處理欄目 Spring 简体版

原文原文鏈接

統一日誌異常實現類：html

[java] view plain copyjava

package com.pilelot.web.util; web
import org.apache.log4j.Logger; spring
import org.springframework.aop.ThrowsAdvice; sql
import org.springframework.dao.DataAccessException; 數據庫
import java.io.IOException; apache
import java.lang.reflect.Method; 數組
import java.sql.SQLException; 安全
/** app
* 由Spring AOP調用輸出異常信息，把程序異常拋向業務異常
*
* @author josephshui
*
*/
public class ExceptionAdvisor implements ThrowsAdvice
{
public void afterThrowing(Method method, Object[] args, Object target,
Exception ex) throws Throwable
{
// 在後臺中輸出錯誤異常異常信息，經過log4j輸出。
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("**************************************************************");
// 在這裏判斷異常，根據不一樣的異常返回錯誤。
if (ex.getClass().equals(DataAccessException.class))
{
ex.printStackTrace();
throw new BusinessException("數據庫操做失敗！");
} else if (ex.getClass().toString().equals(
NullPointerException.class.toString()))
{
ex.printStackTrace();
throw new BusinessException("調用了未經初始化的對象或者是不存在的對象！");
} else if (ex.getClass().equals(IOException.class))
{
ex.printStackTrace();
throw new BusinessException("IO異常！");
} else if (ex.getClass().equals(ClassNotFoundException.class))
{
ex.printStackTrace();
throw new BusinessException("指定的類不存在！");
} else if (ex.getClass().equals(ArithmeticException.class))
{
ex.printStackTrace();
throw new BusinessException("數學運算異常！");
} else if (ex.getClass().equals(ArrayIndexOutOfBoundsException.class))
{
ex.printStackTrace();
throw new BusinessException("數組下標越界!");
} else if (ex.getClass().equals(IllegalArgumentException.class))
{
ex.printStackTrace();
throw new BusinessException("方法的參數錯誤！");
} else if (ex.getClass().equals(ClassCastException.class))
{
ex.printStackTrace();
throw new BusinessException("類型強制轉換錯誤！");
} else if (ex.getClass().equals(SecurityException.class))
{
ex.printStackTrace();
throw new BusinessException("違背安全原則異常！");
} else if (ex.getClass().equals(SQLException.class))
{
ex.printStackTrace();
throw new BusinessException("操做數據庫異常！");
} else if (ex.getClass().equals(NoSuchMethodError.class))
{
ex.printStackTrace();
throw new BusinessException("方法末找到異常！");
} else if (ex.getClass().equals(InternalError.class))
{
ex.printStackTrace();
throw new BusinessException("Java虛擬機發生了內部錯誤");
} else
{
ex.printStackTrace();
throw new BusinessException("程序內部錯誤，操做失敗！" + ex.getMessage());
}
}
}

自定義業務異常處理類友好提示：

[java] view plain copy

package com.pilelot.web.util;
/**
* 自定義業務異常處理類友好提示
* @author josephshui
*
*/
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 = " 請稍後再試或與管理員聯繫！";
StringBuffer friendlyErrMsg = new StringBuffer("");
friendlyErrMsg.append(prefixStr);
friendlyErrMsg.append(msgBody);
friendlyErrMsg.append(suffixStr);
return friendlyErrMsg.toString();
}
}

統一日誌處理實現類：

[java] view plain copy

package com.pilelot.web.util;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.apache.log4j.Logger;
/**
* Spring 統一日誌處理實現類
* @author josephshui
*
*/
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)");// 方法前的操做
Object obj = invocation.proceed();// 執行須要Log的方法
loger.info(invocation.getMethod() + ":END!--(Andy ChanLOG)");// 方法後的操做
loger.info("-------------------------------------------------------------------------------------------------");
return obj;
}
}

Spring配置文件添加：

[html] view plain copy

<bean id="logLnterceptor" class="com.pilelot.web.util.LogInterceptor"/>
<bean id="exceptionHandler" class="com.pilelot.web.util.ExceptionAdvisor"></bean>
<bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator" >
<property name="beanNames">
<list>
<value>commonDao</value>
<value>*Service</value>
</list>
</property>
<property name="interceptorNames">
<list>
<value>exceptionHandler</value>
<value>logLnterceptor</value>
</list>
</property>
</bean>

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