SpringAOP 設(shè)置注入的實(shí)現(xiàn)步驟

第SpringAOP設(shè)置注入的實(shí)現(xiàn)步驟dependencies

!--/artifact/org.springframework/spring-context--

dependency

groupIdorg.springframework/groupId

artifactIdspring-context/artifactId

version5.3.5/version

/dependency

!--/artifact/org.springframework/spring-aspects--

dependency

groupIdorg.springframework/groupId

artifactIdspring-aspects/artifactId

version5.3.5/version

/dependency

!--/artifact/org.aspectj/aspectjweaver--

dependency

groupIdorg.aspectj/groupId

artifactIdaspectjweaver/artifactId

version1.9.6/version

/dependency

!--/artifact/aopalliance/aopalliance--

dependency

groupIdaopalliance/groupId

artifactIdaopalliance/artifactId

version1.0/version

/dependency

dependency

groupIdjunit/groupId

artifactIdjunit/artifactId

version4.12/version

scopetest/scope

/dependency

/dependencies

創(chuàng)建一個(gè)增強(qiáng)類以及其接口

增強(qiáng)類接口:

publicinterfaceVisitService{

//用于實(shí)現(xiàn)前置通知，后置通知，異常通知，最終通知

voidvisit(Stringstr)throwsException;

//用于實(shí)現(xiàn)環(huán)繞通知

voidaround();

增強(qiáng)類：

publicclassVisitServiceImplimplementsVisitService{

//前置，后置，最終，異常通知的增強(qiáng)類

publicvoidvisit(Stringstr)throwsException{

System.out.println(str);

if(!str.equalsIgnoreCase("agree")){

thrownewException("非法訪問");

//環(huán)繞通知的增強(qiáng)類

publicvoidaround(){

System.out.println("環(huán)繞通知");

}

創(chuàng)建一個(gè)切面類

publicclassVisitAspect{

//前置通知

publicvoidvisitBefore(JoinPointjoinPoint){

System.out.println("口令：");

//最終通知，無論是否報(bào)錯(cuò)，都執(zhí)行

publicvoidvisitAfter(JoinPointjoinPoint){

System.out.println("輸入完成");

//后置通知報(bào)錯(cuò)不執(zhí)行

publicvoidvisitSuccess(JoinPointjoinPoint){

System.out.println("請(qǐng)求成功，歡迎");

//異常通知，報(bào)錯(cuò)后執(zhí)行

publicvoidvisitThrow(JoinPointjoinPoint,Throwableex){

System.out.println("請(qǐng)求失敗，拒絕");

//環(huán)繞通知，如果報(bào)錯(cuò)只執(zhí)行前一句

publicObjectvisitAround(ProceedingJoinPointproceedingJoinPoint)throwsThrowable{

System.out.println("-------環(huán)繞-------");

Objectobj=proceedingJoinPceed();

System.out.println("-------環(huán)繞-------");

returnobj;

}

配置xml文件，需要添加第三方約束

beanid="userDao"/bean

beanid="aspect"/bean

aop:config

aop:pointcutid="pointcut"expression="execution(*Spring_AOP.service.impl.VisitServiceImpl.visit(..))"/

aop:pointcutid="pointcut1"expression="execution(*Spring_AOP.service.impl.VisitServiceImpl.around())"/

aop:aspectref="aspect"

aop:beforemethod="visitBefore"pointcut-ref="pointcut"/aop:before

aop:aftermethod="visitAfter"pointcut-ref="pointcut"/aop:after

aop:after-returningmethod="visitSuccess"pointcut-ref="pointcut"/aop:after-returning

aop:aroundmethod="visitAround"pointcut-ref="pointcut1"/aop:around

!--報(bào)錯(cuò)后執(zhí)行aop:after