在Spring AOP 中，通常需要借助AspectJ 的切点表达式语言来定义切点。重要的是Spring 中仅支持AspectJ切点指示器的一个子集。
| AspectJ 指示器 | 描述 |
| args() | 限制连接点匹配参数为执行类型的执行方法 |
| @args() | 限制连接点匹配参数由执行注解标注的执行方法 |
| execution() | 匹配连接点的执行方法 |
| this() | 限制连接点匹配AOP代理的Bean引用类型为指定类型的Bean |
| target() | 限制连接点匹配目标对象为指定类型的类 |
| @target() | 限制连接点匹配目标对象被指定的注解标注的类 |
| within() | 限制连接点匹配匹配指定的类型 |
| @within() | 限制连接点匹配指定注解标注的类型 |
| @annotation | 限制匹配带有指定注解的连接点 |
Spring AOP 中常用的是：
execution(modifiers-pattern? ret-type-pattern declaring-type-pattern? name-pattern(param-pattern)
throws-pattern?)
匹配所有
execution("* *.*(..)")
匹配所有以set开头的方法
execution("* *.set*(..))
匹配指定包下所有的方法
execution("* com.david.biz.service.impl.*(..))
匹配指定包以及其子包下的所有方法
execution("* com.david..*(..)")
匹配指定包以及其子包下 参数类型为String 的方法
execution("* com.david..*(java.lang.String))
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee-3.0.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.1.xsd
">
<context:component-scan base-package="com.david.*"/>
<aop:aspectj-autoproxy />
<context:property-placeholder location="classpath:META-INF/config.properties" />
<!-- 定义数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${jdbc.ams.driver}" />
<property name="jdbcUrl" value="${jdbc.ams.url}" />
<property name="user" value="${jdbc.ams.username}" />
<property name="password" value="${jdbc.ams.password}" />
<property name="initialPoolSize" value="${initialSize}" />
<property name="minPoolSize" value="${minPoolSize}" />
<property name="maxPoolSize" value="${maxActive}" />
<property name="acquireIncrement" value="${acquireIncrement}" />
<property name="maxIdleTime" value="${maxIdleTime}" />
</bean>
<!-- 定义jdbc模板类 -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:META-INF/sqlmap/sqlmap.xml" />
</bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="addBook" propagation="REQUIRED" />
<tx:method name="addUserBook" propagation="MANDATORY" />
<tx:method name="deleteBook" propagation="REQUIRES_NEW" />
<tx:method name="addNewBook" propagation="NEVER" />
<tx:method name="addUser" propagation="NESTED" />
</tx:attributes>
</tx:advice>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
@Service("bookService")
public class BookServiceImpl implements BookService {
private static final Logger logger = LogManager.getLogger(BookServiceImpl.class);
public static final String ADD_BOOK = "insert into t_book(id,name) values(1,'duck-j2ee')";
public static final String DELETE_BOOK = "delete from t_book where id=1";
private JdbcTemplate jdbcTemplate;
@Autowired
private BookDao bookDao;
public void addBook() throws Exception {
Book book = new Book();
book.setName("ibatis");
book.setPrice(11);
bookDao.insert(book);
throw new UnRollbackException("受检查异常，不会回滚");
}
public void deleteBook(int id) {
try {
bookDao.deleteById(id);
} catch (SQLException e) {
logger.error("", e);
}
}
@LoggingRequired
public void addNewBook(String name, int price) {
try {
Book book = new Book();
book.setName(name);
book.setPrice(price);
bookDao.insert(book);
List<Book> lists = bookDao.selectAll();
System.out.println(lists);
} catch (SQLException e) {
logger.error("", e);
}
}
public void addUserBook() {
jdbcTemplate.execute("insert into t_book(id,name) values(3,'UserBook')");
}
/**
* Setter method for property <tt>jdbcTemplate</tt>.
*
* @param jdbcTemplate value to be assigned to property jdbcTemplate
*/
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
/**
* @see com.david.biz.service.BookService#queryAll()
*/
public List<Book> queryAll() {
try {
return bookDao.selectAll();
} catch (SQLException e) {
logger.error("", e);
}
return null;
}
}
/**
* execution（modifiers-pattern? ret-type-pattern declaring-type-pattern? name-pattern（param-pattern）
throws-pattern?）
*arg() 限制连接点匹配参数为指定类型的执行方法
*@args() 限制连接点匹配参数由执行注解标注的执行
*execution() 用于匹配连接点的执行方法
*this() 限制连接点匹配AOP代理的Bean引用为执行类型的类
*target() 限制连接点匹配目标对象为指定类型的类
*@target() 限制连接点匹配特定的执行对象，这些对象应具备指定的注解类型
*@annotation（）限制匹配带有指定注解的连接点
*
*
*
* @author zhangwei_david
* @version $Id: LogAspect.java, v 0.1 2014年11月29日 下午1:10:13 zhangwei_david Exp $
*/
@Component
@Aspect
public class LogAspect {
private static final Logger logger = LogManager.getLogger(LogAspect.class);
/**
* 匹配参数是任何类型，任何数量 且在com,david.biz包或子包下的方法
*/
@Pointcut("args(..)&&within(com.david.biz..*)")
public void arg() {
}
@Pointcut("@args(com.david.aop.LoggingRequired)")
public void annotationArgs() {
}
@Pointcut("@annotation(com.david.aop.LoggingRequired)")
public void logRequiredPointcut() {
}
@Pointcut("args(java.lang.String,*)")
public void argsWithString() {
}
@Pointcut("target(com.david.biz.service.impl.BookServiceImpl)")
public void targetPointcut() {
}
@Pointcut("@target(org.springframework.stereotype.Service)")
public void targetAnnotation() {
}
// @Around("execution(* org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(..))")
// public Object aa(ProceedingJoinPoint pjp) throws Throwable {
// try {
// Object retVal = pjp.proceed();
// System.out.println(retVal);
// return retVal;
// } catch (Exception e) {
// System.out.println("异常");
// return null;
// }
// }
@Before(value = "logRequiredPointcut()")
public void before(JoinPoint joinPoint) {
LogUtils.info(logger,
" 连接点表达式@annotation(com.david.aop.LoggingRequired) - method={0} has been visited",
joinPoint.getSignature().getName());
}
@Before(value = "arg()")
public void beforeArg(JoinPoint joinPoint) {
LogUtils.info(logger,
"连接点表达式：args(..)&&within(com.david.biz..*) method ={0}, args ={1},target={2}",
joinPoint.getSignature().getName(), ToStringBuilder.reflectionToString(
joinPoint.getArgs(), ToStringStyle.SHORT_PREFIX_STYLE), joinPoint.getTarget()
.getClass().getName());
}
@Before(value = "argsWithString()")
public void beforeArgWithString(JoinPoint joinPoint) {
LogUtils.info(logger, "连接点表达式：args(java.lang.String,*) method={0} ,args ={1},target={2}",
joinPoint.getSignature().getName(), ToStringBuilder.reflectionToString(
joinPoint.getArgs(), ToStringStyle.SHORT_PREFIX_STYLE), joinPoint.getTarget()
.getClass().getName());
}
@Before(value = "annotationArgs()")
public void beforeAnnotationArgs(JoinPoint joinPoint) {
LogUtils
.info(
logger,
"连接点表达式：@args(com.david.annotation.validate.Length,*) method={0} ,args ={1},target={2}",
joinPoint.getSignature().getName(), ToStringBuilder.reflectionToString(
joinPoint.getArgs(), ToStringStyle.SHORT_PREFIX_STYLE), joinPoint.getTarget()
.getClass().getName());
}
@Before(value = "targetPointcut()")
public void beforeTarget(JoinPoint joinPoint) {
LogUtils
.info(
logger,
"连接点表达式：target(com.david.biz.service.impl.BookServiceImpl) method={0} ,args ={1},target={2}",
joinPoint.getSignature().getName(), ToStringBuilder.reflectionToString(
joinPoint.getArgs(), ToStringStyle.SHORT_PREFIX_STYLE), joinPoint.getTarget()
.getClass().getName());
}
@Before(value = " targetAnnotation()")
public void beforeTargetAnnotation(JoinPoint joinPoint) {
LogUtils
.info(
logger,
"连接点表达式：@target(org.springframework.stereotype.Service) method={0} ,args ={1},target={2}",
joinPoint.getSignature().getName(), ToStringBuilder.reflectionToString(
joinPoint.getArgs(), ToStringStyle.SHORT_PREFIX_STYLE), joinPoint.getTarget()
.getClass().getName());
}
}
/**
*
* @author zhangwei_david
* @version $Id: T.java, v 0.1 2014年12月1日 上午9:35:44 zhangwei_david Exp $
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "file:H:/workspace4study/WebApp/src/main/webapp/WEB-INF/applicationContext.xml")
public class BookServiceTest {
@Autowired
private BookService bookService;
@Test
public void testB() {
bookService.addNewBook("Junit Test", 1000);
}
}
2014-12-01 11:14:39 [ main:1577 ] - [ INFO ] 连接点表达式@annotation(com.david.aop.LoggingRequired) - method=addNewBook has been visited
2014-12-01 11:14:39 [ main:1587 ] - [ INFO ] 连接点表达式：args(..)&&within(com.david.biz..*) method =addNewBook, args =Object[][{Junit Test,1000}],target=com.david.biz.service.impl.BookServiceImpl
2014-12-01 11:14:39 [ main:1588 ] - [ INFO ] 连接点表达式：args(java.lang.String,*) method=addNewBook ,args =Object[][{Junit Test,1000}],target=com.david.biz.service.impl.BookServiceImpl
2014-12-01 11:14:39 [ main:1588 ] - [ INFO ] 连接点表达式：target(com.david.biz.service.impl.BookServiceImpl) method=addNewBook ,args =Object[][{Junit Test,1000}],target=com.david.biz.service.impl.BookServiceImpl
2014-12-01 11:14:39 [ main:1589 ] - [ INFO ] 连接点表达式：@target(org.springframework.stereotype.Service) method=addNewBook ,args =Object[][{Junit Test,1000}],target=com.david.biz.service.impl.BookServiceImpl
2014-12-01 11:14:39 [ main:1589 ] - [ INFO ] 连接点表达式：args(..)&&within(com.david.biz..*) method =insert, args =Object[][{Book[id=0,name=Junit Test,price=1000]}],target=com.david.biz.dao.impl.BookDaoImpl
2014-12-01 11:14:39 [ main:1590 ] - [ INFO ] 连接点表达式：@args(com.david.annotation.validate.Length,*) method=insert ,args =Object[][{Book[id=0,name=Junit Test,price=1000]}],target=com.david.biz.dao.impl.BookDaoImpl
2014-12-01 11:14:39 [ main:1591 ] - [ INFO ] 连接点表达式：args(java.lang.String,*) method=insert ,args =Object[][{demo.insert,Book[id=0,name=Junit Test,price=1000]}],target=com.ibatis.sqlmap.engine.impl.SqlMapClientImpl