Examples of org.springframework.web.method.HandlerMethod

org.springframework.web.method.HandlerMethod
Encapsulates information about a bean method consisting of a {@linkplain #getMethod() method} and a {@linkplain #getBean() bean}. Provides convenient access to method parameters, the method return value, method annotations.
The class may be created with a bean instance or with a bean name (e.g. lazy bean, prototype bean). Use {@link #createWithResolvedBean()} to obtain an{@link HandlerMethod} instance with a bean instance initialized through thebean factory. @author Arjen Poutsma @author Rossen Stoyanchev @since 3.1

  protected HandlerMethod getHandlerInternal(HttpServletRequest request) throws Exception {
    String lookupPath = getUrlPathHelper().getLookupPathForRequest(request);
    if (logger.isDebugEnabled()) {
      logger.debug("Looking up handler method for path " + lookupPath);
    }
    HandlerMethod handlerMethod = lookupHandlerMethod(lookupPath, request);
    if (logger.isDebugEnabled()) {
      if (handlerMethod != null) {
        logger.debug("Returning handler method [" + handlerMethod + "]");
      }
      else {
        logger.debug("Did not find handler method for [" + lookupPath + "]");
      }
    }
    return (handlerMethod != null ? handlerMethod.createWithResolvedBean() : null);
  }

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  }


  @Test
  public void resolveNoExceptionHandlerForException() throws NoSuchMethodException {
    Exception npe = new NullPointerException();
    HandlerMethod handlerMethod = new HandlerMethod(new IoExceptionController(), "handle");
    this.resolver.afterPropertiesSet();
    ModelAndView mav = this.resolver.resolveException(this.request, this.response, handlerMethod, npe);


    assertNull("NPE should not have been handled", mav);
  }

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  }


  @Test
  public void resolveExceptionModelAndView() throws NoSuchMethodException {
    IllegalArgumentException ex = new IllegalArgumentException("Bad argument");
    HandlerMethod handlerMethod = new HandlerMethod(new ModelAndViewController(), "handle");
    this.resolver.afterPropertiesSet();
    ModelAndView mav = this.resolver.resolveException(this.request, this.response, handlerMethod, ex);


    assertNotNull(mav);
    assertFalse(mav.isEmpty());

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  }


  @Test
  public void resolveExceptionResponseBody() throws UnsupportedEncodingException, NoSuchMethodException {
    IllegalArgumentException ex = new IllegalArgumentException();
    HandlerMethod handlerMethod = new HandlerMethod(new ResponseBodyController(), "handle");
    this.resolver.afterPropertiesSet();
    ModelAndView mav = this.resolver.resolveException(this.request, this.response, handlerMethod, ex);


    assertNotNull(mav);
    assertTrue(mav.isEmpty());

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  }


  @Test
  public void resolveExceptionResponseWriter() throws Exception {
    IllegalArgumentException ex = new IllegalArgumentException();
    HandlerMethod handlerMethod = new HandlerMethod(new ResponseWriterController(), "handle");
    this.resolver.afterPropertiesSet();
    ModelAndView mav = this.resolver.resolveException(this.request, this.response, handlerMethod, ex);


    assertNotNull(mav);
    assertTrue(mav.isEmpty());

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    AnnotationConfigApplicationContext cxt = new AnnotationConfigApplicationContext(MyConfig.class);
    this.resolver.setApplicationContext(cxt);
    this.resolver.afterPropertiesSet();


    IllegalAccessException ex = new IllegalAccessException();
    HandlerMethod handlerMethod = new HandlerMethod(new ResponseBodyController(), "handle");
    ModelAndView mav = this.resolver.resolveException(this.request, this.response, handlerMethod, ex);


    assertNotNull("Exception was not handled", mav);
    assertTrue(mav.isEmpty());
    assertEquals("AnotherTestExceptionResolver: IllegalAccessException", this.response.getContentAsString());

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    AnnotationConfigApplicationContext cxt = new AnnotationConfigApplicationContext(MyConfig.class);
    this.resolver.setApplicationContext(cxt);
    this.resolver.afterPropertiesSet();


    IllegalStateException ex = new IllegalStateException();
    HandlerMethod handlerMethod = new HandlerMethod(new ResponseBodyController(), "handle");
    ModelAndView mav = this.resolver.resolveException(this.request, this.response, handlerMethod, ex);


    assertNotNull("Exception was not handled", mav);
    assertTrue(mav.isEmpty());
    assertEquals("TestExceptionResolver: IllegalStateException", this.response.getContentAsString());

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    AnnotationConfigApplicationContext cxt = new AnnotationConfigApplicationContext(MyControllerAdviceConfig.class);
    this.resolver.setApplicationContext(cxt);
    this.resolver.afterPropertiesSet();


    IllegalStateException ex = new IllegalStateException();
    HandlerMethod handlerMethod = new HandlerMethod(new ResponseBodyController(), "handle");
    ModelAndView mav = this.resolver.resolveException(this.request, this.response, handlerMethod, ex);


    assertNotNull("Exception was not handled", mav);
    assertTrue(mav.isEmpty());
    assertEquals("BasePackageTestExceptionResolver: IllegalStateException", this.response.getContentAsString());

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  @Test
  public void getNameExplicit() {


    Method method = ClassUtils.getMethod(TestController.class, "handle");
    HandlerMethod handlerMethod = new HandlerMethod(new TestController(), method);


    RequestMappingInfo rmi = new RequestMappingInfo("foo", null, null, null, null, null, null, null);


    HandlerMethodMappingNamingStrategy strategy = new RequestMappingInfoHandlerMethodMappingNamingStrategy();

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  @Test
  public void getNameConvention() {


    Method method = ClassUtils.getMethod(TestController.class, "handle");
    HandlerMethod handlerMethod = new HandlerMethod(new TestController(), method);


    RequestMappingInfo rmi = new RequestMappingInfo(null, null, null, null, null, null, null, null);


    HandlerMethodMappingNamingStrategy strategy = new RequestMappingInfoHandlerMethodMappingNamingStrategy();

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