spring aop注解配置web日志
2014-04-20 08:42
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下面是配置文件aop-servlet.xml,使用的版本是spring3.1
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<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd <span style="color:#ff0000"> </span>http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd ">
<aop:aspectj-autoproxy />
<bean id="logAdvice" class="com.cloudData.aop.LogAdvice"></bean>
</beans>
下面是LogAdvice.java
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package com.cloudData.aop;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
/**
* @author LiuKe
* @version 1.0 2013-10-21
* @show 日志切面
*/
@Aspect
public class LogAdvice{
@Pointcut("execution(* *.handleRequest(..))")
public void log(){}
@Before("log()")
public void LogRequest(JoinPoint joinPoint)
{
Object obj[] = joinPoint.getArgs();
for(Object o :obj){
System.out.println("----------------"+o+"----------------");
}
// System.out.println("========checkSecurity=="+joinPoint.getSignature().getName());//这个是获得方法名
// System.out.println("记录了一个请求");
}
@After("log()")
public void LogResponse(JoinPoint joinPoint)
{
}
@AfterThrowing("log()")
public void LogThrowing(JoinPoint joinPoint)
{
}
}
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@Pointcut("execution(* *.handleRequest(..))")
public void log(){}
指明了log()方法代表的切点,可以理解为log()方法是一个钩子,他的方法体为空即可,它钩到@Pointcut定义的切点方法,在后面的@Before等配置中,直接配置“log()”即可
@Before("log()"),@After("log()"),@AfterThrowing("log()")分别表示在* *.handleRequest(..)之前调用,* *.handleRequest(..)之后调用,
* *.handleRequest(..)抛出异常调用。
JoinPoint代表切点,joinpoint实例中可以获取切点方法的方法名,参数等信息。
最后,在LogRequest(JoingPoint joinPoint)等方法中,添加日志代码即可。
下面贴出几种常用的记录日志的方法,可自行选择一种加入到LogRequest LogResponse 或LogThrowing中,下面提供的几种记录日志方法的区别,读者可自己测试体会
Log4jTest.java
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package com.test.log4jtest;
import java.io.FileOutputStream;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.FileAppender;
import org.apache.log4j.HTMLLayout;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.SimpleLayout;
import org.apache.log4j.WriterAppender;
public class Log4jTest {
static Logger logger = Logger.getLogger(Log4jTest.class);
public static void main(String args[]) {
// output1();//SimpleLayout和 FileAppender
// output2();//HTMLLayout和 WriterAppender
output3();//PatternLayout和 ConsoleAppender
}
public static void output1()
{
SimpleLayout layout = new SimpleLayout();
FileAppender appender = null;
try {
appender = new FileAppender(layout,"output1.txt",false);
} catch(Exception e) {}
logger.addAppender(appender);
logger.setLevel((Level) Level.DEBUG);
logger.debug("Here is some DEBUG");
logger.info("Here is some INFO");
logger.warn("Here is some WARN");
logger.error("Here is some ERROR");
logger.fatal("Here is some FATAL");
}
public static void output2()
{
HTMLLayout layout = new HTMLLayout();
WriterAppender appender = null;
try {
FileOutputStream output = new FileOutputStream("output2.html");
appender = new WriterAppender(layout,output);
} catch(Exception e) {}
logger.addAppender(appender);
logger.setLevel((Level) Level.DEBUG);
logger.debug("Here is some DEBUG");
logger.info("Here is some INFO");
logger.warn("Here is some WARN");
logger.error("Here is some ERROR");
logger.fatal("Here is some FATAL");
}
public static void output3()
{
// Note, %n is newline
String pattern = "Milliseconds since program start: %r %n";
pattern += "Classname of caller: %C %n";
pattern += "Date in ISO8601 format: %d{ISO8601} %n";
pattern += "Location of log event: %l %n";
pattern += "Message: %m %n %n";
PatternLayout layout = new PatternLayout(pattern);
ConsoleAppender appender = new ConsoleAppender(layout);
logger.addAppender(appender);
logger.setLevel((Level) Level.DEBUG);
logger.debug("Here is some DEBUG");
logger.info("Here is some INFO");
logger.warn("Here is some WARN");
logger.error("Here is some ERROR");
logger.fatal("Here is some FATAL");
}
}
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<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd <span style="color:#ff0000"> </span>http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd ">
<aop:aspectj-autoproxy />
<bean id="logAdvice" class="com.cloudData.aop.LogAdvice"></bean>
</beans>
下面是LogAdvice.java
[java]
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package com.cloudData.aop;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
/**
* @author LiuKe
* @version 1.0 2013-10-21
* @show 日志切面
*/
@Aspect
public class LogAdvice{
@Pointcut("execution(* *.handleRequest(..))")
public void log(){}
@Before("log()")
public void LogRequest(JoinPoint joinPoint)
{
Object obj[] = joinPoint.getArgs();
for(Object o :obj){
System.out.println("----------------"+o+"----------------");
}
// System.out.println("========checkSecurity=="+joinPoint.getSignature().getName());//这个是获得方法名
// System.out.println("记录了一个请求");
}
@After("log()")
public void LogResponse(JoinPoint joinPoint)
{
}
@AfterThrowing("log()")
public void LogThrowing(JoinPoint joinPoint)
{
}
}
[java]
view plaincopy
@Pointcut("execution(* *.handleRequest(..))")
public void log(){}
指明了log()方法代表的切点,可以理解为log()方法是一个钩子,他的方法体为空即可,它钩到@Pointcut定义的切点方法,在后面的@Before等配置中,直接配置“log()”即可
@Before("log()"),@After("log()"),@AfterThrowing("log()")分别表示在* *.handleRequest(..)之前调用,* *.handleRequest(..)之后调用,
* *.handleRequest(..)抛出异常调用。
JoinPoint代表切点,joinpoint实例中可以获取切点方法的方法名,参数等信息。
最后,在LogRequest(JoingPoint joinPoint)等方法中,添加日志代码即可。
下面贴出几种常用的记录日志的方法,可自行选择一种加入到LogRequest LogResponse 或LogThrowing中,下面提供的几种记录日志方法的区别,读者可自己测试体会
Log4jTest.java
[java]
view plaincopy
package com.test.log4jtest;
import java.io.FileOutputStream;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.FileAppender;
import org.apache.log4j.HTMLLayout;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.SimpleLayout;
import org.apache.log4j.WriterAppender;
public class Log4jTest {
static Logger logger = Logger.getLogger(Log4jTest.class);
public static void main(String args[]) {
// output1();//SimpleLayout和 FileAppender
// output2();//HTMLLayout和 WriterAppender
output3();//PatternLayout和 ConsoleAppender
}
public static void output1()
{
SimpleLayout layout = new SimpleLayout();
FileAppender appender = null;
try {
appender = new FileAppender(layout,"output1.txt",false);
} catch(Exception e) {}
logger.addAppender(appender);
logger.setLevel((Level) Level.DEBUG);
logger.debug("Here is some DEBUG");
logger.info("Here is some INFO");
logger.warn("Here is some WARN");
logger.error("Here is some ERROR");
logger.fatal("Here is some FATAL");
}
public static void output2()
{
HTMLLayout layout = new HTMLLayout();
WriterAppender appender = null;
try {
FileOutputStream output = new FileOutputStream("output2.html");
appender = new WriterAppender(layout,output);
} catch(Exception e) {}
logger.addAppender(appender);
logger.setLevel((Level) Level.DEBUG);
logger.debug("Here is some DEBUG");
logger.info("Here is some INFO");
logger.warn("Here is some WARN");
logger.error("Here is some ERROR");
logger.fatal("Here is some FATAL");
}
public static void output3()
{
// Note, %n is newline
String pattern = "Milliseconds since program start: %r %n";
pattern += "Classname of caller: %C %n";
pattern += "Date in ISO8601 format: %d{ISO8601} %n";
pattern += "Location of log event: %l %n";
pattern += "Message: %m %n %n";
PatternLayout layout = new PatternLayout(pattern);
ConsoleAppender appender = new ConsoleAppender(layout);
logger.addAppender(appender);
logger.setLevel((Level) Level.DEBUG);
logger.debug("Here is some DEBUG");
logger.info("Here is some INFO");
logger.warn("Here is some WARN");
logger.error("Here is some ERROR");
logger.fatal("Here is some FATAL");
}
}
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