没有调用拦截器方法

时间:2010-12-28 17:57:52

标签: logging java-ee ejb interceptor

我已经编写了以下用于在EJB中测试InterceptorBinding的测试代码,如here所述:

Bean类:

@Stateless
@LocalBean
@Interceptors ({LoggingInterceptor.class})
public class TestInterceptor {

 @PostConstruct
 public int func1()
 {
     System.out.println("here1");
     return 0;
 }

 public void func2()
 {
     System.out.println("here2");
 }

 public static void main(String[] args)
 {
    TestInterceptor t = new TestInterceptor();
    t.func1();
    t.func2();
 }
}

拦截器绑定:

@InterceptorBinding
@Target(value = {ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface Log {
}

拦截器:     @Interceptor     @Log     公共类LoggingInterceptor {

 private java.util.logging.Logger logger =
        java.util.logging.Logger.getLogger("theLogger");

 @AroundInvoke
 public Object intercept(InvocationContext context) throws Exception {
     logger.log(Level.INFO, "here ", context.getMethod().getName());
     return context.proceed();
 }

}

JSP文件:

<%@page import="test.TestInterceptor"%>
<%@page import="javax.ejb.EJB"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  "http://www.w3.org/TR/html4/loose.dtd">

<html>
 <head>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>JSP Page</title>
 </head>
 <body>
     <h1>Hello World!</h1>
     <%
  TestInterceptor object = new TestInterceptor();
  %>
  <%=object.func1()%>
 </body>
</html>

但是没有调用拦截方法。你能帮我解决一下这个问题吗?

1 个答案:

答案 0 :(得分:4)

您正在直接实例化TestInterceptor,这意味着EJB容器没有机会应用拦截器。即使对于@LocalBean,这也行不通。您需要查找或注入对EJB的引用。