spring 3.1.0.M 注解MVC + filter + AOP
导包
spring 3.1的包全导入 + commons-logging.jar + servlet-api.jar + aopalliance.jar + aspectjrt.jar + aspectjweaver.jar + cglib-nodep-2.1_3.jar
web,xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>springDemo</display-name>
<welcome-file-list>
<welcome-file>index.do</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/demo.xml</param-value>
</context-param>
<servlet>
<servlet-name>springContent</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/demo.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springContent</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<filter>
<filter-name>DelegatingFilterProxy</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<init-param>
<param-name>targetBeanName</param-name>
<param-value>filter_saveuserinfo</param-value>
</init-param>
<init-param>
<param-name>targetFilterLifecycle</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>DelegatingFilterProxy</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
</web-app>
spring配置文件demo.xml
<?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:cache="http://www.springframework.org/schema/cache" xmlns:context="http://www.springframework.org/schema/context" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:jms="http://www.springframework.org/schema/jms" xmlns:lang="http://www.springframework.org/schema/lang" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:oxm="http://www.springframework.org/schema/oxm" xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-3.1.xsd http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-3.1.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd"> <context:annotation-config /> <context:component-scan base-package="com.netel" /> <aop:aspectj-autoproxy /> </beans>
controller
package com.netel.web;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class Controller_index {
@RequestMapping("/index.do")
public String doit(){
System.out.println("进入controller");
return "index.jsp";
}
}
filter
package com.netel.web;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.springframework.stereotype.Component;
@Component("filter_saveuserinfo")
public class Filter_saveUserInfo implements Filter {
/**
* Default constructor.
*/
public Filter_saveUserInfo() {
}
/**
* @see Filter#destroy()
*/
public void destroy() {
}
/**
* @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
*/
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
System.out.println("进入filter");
chain.doFilter(request, response);
}
/**
* @see Filter#init(FilterConfig)
*/
public void init(FilterConfig fConfig) throws ServletException {
}
}
AOP
package com.netel.service;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.stereotype.Component;
@Aspect
@Component
public class AOP_loginfo {
/**
* 所有带RequestMapping注解的方法
*/
private final static String el = "@annotation(org.springframework.web.bind.annotation.RequestMapping)";
@Before(el)
public void before() {
System.out.println("执行之前");
}
@After(el)
public void after() {
System.out.println("执行之后");
}
@Around(el)
public Object around(ProceedingJoinPoint p) {
for (Object obj : p.getArgs()) {
System.out.println("参数:" + obj);
}
Object ob = null;
try {
System.out.println("around前");
ob = p.proceed();
System.out.println("around后");
} catch (Throwable e) {
e.printStackTrace();
}
return ob;
}
@AfterThrowing(value = el, throwing="e")
public void throwing(Exception e){
System.out.println("出异常了"+e);
}
}
发布运行，控制台输出
进入filter 执行之前 around前 进入controller 执行之后 around后