1、在spring里面还提供有一种aop拦截器配置，不过大部分的aop拦截器都是围绕着业务层进行拦截处理的。1、建立一个普通的业务操作接口和它的子类：package com.gwolf.service.impl;import com.gwolf.service.IMemberService;import com.gwolf.vo.Member;import org.springframework.stereotype.Service;@Servicepublic class MemberServiceImpl implements IMemberService{ @Override public Member get(String mid) { Member vo = new Member(); vo.setMid(mid); vo.setName("张三"); return vo; }}
2、现在业务层的操作完成之后随后去修改控制层，让控制层进行业务层的调用。package com.gwolf.controller;import com.gwolf.service.IMemberService;import com.gwolf.util.controller.AbstractBaseController;import com.gwolf.vo.Member;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.stereotype.Service;import org.springframework.validation.BindingResult;import org.springframework.validation.ObjectError;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import javax.validation.Valid;import java.util.Iterator;@Controllerpublic class MemberController extends AbstractBaseController{ @Autowired private IMemberService memberService; @RequestMapping(value="/member_get", method = RequestMethod.GET) @ResponseBody public Object get(String mid) { return this.memberService.get(mid); }}
3、访问地址：http://localhost:8080/member_get?mid=100
4、现在的业务层只是一个纯粹的调用而已，但是现在希望对调用的过程进行拦截处理，所以要想实现这样的处理，那么就需要引入新的开发依赖包，修改pom.xml配置文件：<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <parent> <artifactId>SpringBoot</artifactId> <groupId>com.gwolf</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.gwolf</groupId> <artifactId>springboot-base</artifactId> <packaging>jar</packaging> <name>springboot-base</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>springloaded</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> </dependencies></project>
5、编写一个aop拦截的控制程序类。package com.gwolf.config;import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.annotation.Around;import org.aspectj.lang.annotation.Aspect;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Component;import java.util.Arrays;@Aspect@Componentpublic class ServiceAspect { private Logger log = LoggerFactory.getLogger(ServiceAspect.class); @Around("execution(* com.gwolf..service..*.*(..))") public Object aroundInvoke(ProceedingJoinPoint point) throws Throwable { this.log.info("[***Service-Before***]执行参数：" + Arrays.toString(point.getArgs())); Object object = point.proceed(point.getArgs()); this.log.info("[***Service-After***]返回结果：" + object); return object; }}
6、查看我们业务层的aop拦截输出打印。
7、对于web拦截可以使用拦截器，而对于业务层的拦截可以使用Aspect表达式结合AOP的拦截机制实现。