我是Spring Aop概念的新手。我想使用spring aop构建日志记录功能。我得到了很多例子，但我需要的是：
我有@controller类，每个方法都有requestmapping url，我希望每当该url命中aop建议时都应该调用。我已经尝试了很多。 你能纠正我吗？提前谢谢。
这是我的控制器类
@Controller
@RequestMapping("/hotel")
public class BookingController {
//private static final Logger logger =LoggerFactory.getLogger(BookingController.class);
// private static final Logger logger = Logger.getLogger(BookingController.class);
private static final Logger LOG = Logger.getLogger(BookingController.class.getName());
/**
* Simply selects the home view to render by returning its name.
*
* @param locale
* @param model
* @return
*/
@RequestMapping(method = RequestMethod.GET)
public String home(Locale locale, Model model) {
System.out.println("hello");
LOG.warning("Welcome home! The client locale is {}.");
Date date = new Date();
DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
String formattedDate = dateFormat.format(date);
model.addAttribute("serverTime", formattedDate);
return "hotel";
}
@RequestMapping(value = "/book", method = RequestMethod.POST)
public String bookHotel(
@RequestParam(value = "name", required = false) String name,
@RequestParam(value = "city", required = false) String city,
@RequestParam(value = "purpose", required = false) String purpose,
@RequestParam(value = "idproof", required = false) String idproof,
Model model, HttpServletRequest request) {
//Save the required information in data base
//......
//......
//Send the response back
model.addAttribute("name", name);
model.addAttribute("city", city);
model.addAttribute("purpose", purpose);
model.addAttribute("idproof", idproof);
return "customerDetails";
}
@RequestMapping(value = "/book", method = RequestMethod.GET)
public String bookHotel(
@RequestParam(value = "id", required = false) String id,
Model model, HttpServletRequest request) {
//get the required information in data base for customer Id
//......
//......
//suppose we get these value from database
String randomName = UUID.randomUUID().toString().substring(0, 4);
String randomCity = UUID.randomUUID().toString().substring(0, 4);
String randomPurpose = UUID.randomUUID().toString().substring(0, 4);
String randomIdProof = UUID.randomUUID().toString().substring(0, 4);
//Send the response back
model.addAttribute("name", "Name " + randomName);
model.addAttribute("city", "City " + randomCity);
model.addAttribute("purpose", "Purpose " + randomPurpose);
model.addAttribute("idproof", "IdProof " + randomIdProof);
return "customerDetails";
}
}
这是我的ASPECT课程
@Aspect
@Component
public class LoggingHandler {
private static final Logger log = Logger.getLogger(BookingController.class.getName());
@Pointcut("within(@org.springframework.stereotype.Controller *)")
public void controller() {
}
@Pointcut("execution(* *.*(..))")
protected void allMethod() {
}
@Pointcut("execution(public * *(..))")
protected void loggingPublicOperation() {
}
@Pointcut("execution(* *.*(..))")
protected void loggingAllOperation() {
}
@Pointcut("within(org.learn.log..*)")
private void logAnyFunctionWithinResource() {
}
//before -> Any resource annotated with @Controller annotation
//and all method and function taking HttpServletRequest as first parameter
@Before("controller() && allMethod() && args(..,request)")
public void logBefore(JoinPoint joinPoint, HttpServletRequest request) {
System.out.println("--------------123------------");
log.warning("Entering in Method : " + joinPoint.getSignature().getName());
log.warning("Class Name : " + joinPoint.getSignature().getDeclaringTypeName());
log.warning("Arguments : " + Arrays.toString(joinPoint.getArgs()));
log.warning("Target class : " + joinPoint.getTarget().getClass().getName());
if (null != request) {
log.warning("Start Header Section of request ");
log.warning("Method Type : " + request.getMethod());
Enumeration headerNames = request.getHeaderNames();
while (headerNames.hasMoreElements()) {
Object headerName = headerNames.nextElement();
String headerValue = request.getHeader((String) headerName);
log.warning("Header Name: " + headerName + " Header Value : " + headerValue);
}
log.warning("Request Path info :" + request.getServletPath());
log.warning("End Header Section of request ");
}
}
@Before("allMethod()")//applying pointcut on before advice
public void myadvice(JoinPoint jp)//it is advice (before advice)
{
System.out.println("additional concern with before advice");
System.out.println("Method Signature: " + jp.getSignature());
}
//After -> All method within resource annotated with @Controller annotation
// and return a value
@AfterReturning(pointcut = "controller() && allMethod()", returning = "result")
public void logAfter(JoinPoint joinPoint, Object result) {
String returnValue = this.getValue(result);
System.out.println("--------------123------------");
log.warning("Method Return value : " + returnValue);
}
//After -> Any method within resource annotated with @Controller annotation
// throws an exception ...Log it
@AfterThrowing(pointcut = "controller() && allMethod()", throwing = "exception")
public void logAfterThrowing(JoinPoint joinPoint, Throwable exception) {
System.out.println("--------------123------------");
log.warning("An exception has been thrown in " + joinPoint.getSignature().getName() + " ()");
log.warning("Cause : " + exception.getCause());
}
//Around -> Any method within resource annotated with @Controller annotation
@Around("controller() && allMethod()")
public Object logAround(ProceedingJoinPoint joinPoint) throws Throwable {
long start = System.currentTimeMillis();
try {
System.out.println("--------------123------------");
log.warning("-------unnati----------");
String className = joinPoint.getSignature().getDeclaringTypeName();
String methodName = joinPoint.getSignature().getName();
Object result = joinPoint.proceed();
long elapsedTime = System.currentTimeMillis() - start;
log.warning("Method " + className + "." + methodName + " ()" + " execution time : "
+ elapsedTime + " ms");
return result;
} catch (IllegalArgumentException e) {
log.warning("Illegal argument " + Arrays.toString(joinPoint.getArgs()) + " in "
+ joinPoint.getSignature().getName() + "()");
throw e;
}
}
private String getValue(Object result) {
String returnValue = null;
if (null != result) {
if (result.toString().endsWith("@" + Integer.toHexString(result.hashCode()))) {
returnValue = ReflectionToStringBuilder.toString(result);
} else {
returnValue = result.toString();
}
}
return returnValue;
}
}
以下是我的xml：
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd">
<context:component-scan base-package="com.aopwithrestful.package1" />
<mvc:annotation-driven />
<aop:aspectj-autoproxy/>
<bean class="com.aopwithrestful.package1.LoggingHandler"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
我添加了以下库：
我仍然得到如下错误：
org.springframework.beans.factory.BeanCreationException:
Error creating bean with name
'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping':
Initialization of bean failed; nested exception is
org.springframework.beans.ConversionNotSupportedException:
Failed to convert property value of type
[
com.sun.proxy.$Proxy346 implementing org.springframework.web.accept.ContentNegotiationStrategy,
org.springframework.web.accept.MediaTypeFileExtensionResolver,
org.springframework.aop.SpringProxy,
org.springframework.aop.framework.Advised,
org.springframework.core.DecoratingProxy
]
to required type [org.springframework.web.accept.ContentNegotiationManager]
for property 'contentNegotiationManager'; nested exception is
java.lang.IllegalStateException:
Cannot convert value of type
[
com.sun.proxy.$Proxy346 implementing org.springframework.web.accept.ContentNegotiationStrategy,
org.springframework.web.accept.MediaTypeFileExtensionResolver,
org.springframework.aop.SpringProxy,
org.springframework.aop.framework.Advised,
org.springframework.core.DecoratingProxy
]
to required type [org.springframework.web.accept.ContentNegotiationManager]
for property 'contentNegotiationManager':
no matching editors or conversion strategy found
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
代码中的错误????