切入Debug日志

2024-12-22 技术教程

注意：Action如果实现了Action接口，或者继承了ActionSupport类，则要在aop:config标签添加proxy-target-class="true"，否者会抛异常。

新建文件：DebugLogger.java：

import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;

public class DebugLogger{

Logger logger = Logger.getLogger(DebugLogger.class);

StringBuffer buffer = new StringBuffer();

public void log(JoinPoint joinPoint) {

Object[] args = joinPoint.getArgs();
buffer.delete(0, buffer.length()).append("enter function: ").append(joinPoint.getSignature()).append(", parameters: ");
if (args != null) {
for (Object obj : args) {
buffer.append(obj);
}
}
if (logger.isDebugEnabled())
{
logger.debug(buffer.toString());
}

}

public void logWithReturn(JoinPoint joinPoint, Object returnObj) {
buffer.delete(0, buffer.length()).append("exit function：").append(joinPoint.getSignature()).append(", return value：").append(returnObj);
if (logger.isDebugEnabled())
{
logger.debug(buffer.toString());
}
}
}

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更改applicationContext.xml文件：