拦截器未在方法级别上调用

Question

我有一个方法拦截器。拦截器位于一个单独的类中，它也已在beans.xml文件中定义，并在方法级别使用它。但它没有被调用。我的代码如下：

拦截班：

public class HttpPostInterceptorTest {

@AroundInvoke
public Object intercept(InvocationContext context) throws Exception {
    Object result = null;
    HttpServletRequest httpServletRequest = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
    HttpServletResponse httpServletResponse = (HttpServletResponse) FacesContext.getCurrentInstance().getExternalContext().getResponse();
    if(httpServletRequest.getMethod().equals("GET")){
        //Business Logic
    }else{
        result = context.proceed();
    }

    return result;
}

在方法级别：

@Interceptors(HttpPostInterceptorTest.class)
@Transactional
public String save() {
    //Business Logic
    return null;
}