Examples of org.springframework.web.portlet.ModelAndView

org.springframework.web.portlet.ModelAndView
Holder for both Model and View in the web MVC framework. Note that these are entirely distinct. This class merely holds both to make it possible for a controller to return both model and view in a single return value.
Represents a model and view returned by a handler, to be resolved by a DispatcherPortlet. The view can take the form of a String view name which will need to be resolved by a ViewResolver object; alternatively a view object can be specified directly. The model is a Map, allowing the use of multiple objects keyed by name. @author Juergen Hoeller @since 2.0 @see org.springframework.web.portlet.DispatcherPortlet @see org.springframework.web.servlet.ViewResolver @see org.springframework.web.portlet.HandlerAdapter @see org.springframework.web.portlet.mvc.Controller

    Properties props = new Properties();
    props.setProperty("java.lang.Exception", "error");
    props.setProperty("SomeOddException", "another-error");
    exceptionResolver.setMappedHandlers(Collections.singleton(handler1));
    exceptionResolver.setExceptionMappings(props);
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler1, oddException);
    assertEquals("another-error", mav.getViewName());
  }

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    props.setProperty("java.lang.Exception", "error");
    props.setProperty("SomeOddException", "another-error");
    props.setProperty("AnotherOddException", "another-some-error");
    exceptionResolver.setMappedHandlers(Collections.singleton(handler1));
    exceptionResolver.setExceptionMappings(props);
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler1, oddException);
    assertEquals("another-some-error", mav.getViewName());
  }

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    props.setProperty("java.lang.Exception", "error");
    props.setProperty("SomeOddException", "parent-error");
    props.setProperty("SomeOddExceptionChild", "child-error");
    exceptionResolver.setMappedHandlers(Collections.singleton(handler1));
    exceptionResolver.setExceptionMappings(props);
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler1, oddException);
    assertEquals("child-error", mav.getViewName());
  }

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    Properties props = new Properties();
    props.setProperty("java.lang.Exception", "error");
    props.setProperty("SomeOddException", "parent-error");
    exceptionResolver.setMappedHandlers(Collections.singleton(handler1));
    exceptionResolver.setExceptionMappings(props);
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler1, oddException);
    assertEquals("parent-error", mav.getViewName());
  }

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   * @param ex the exception that got thrown during handler execution
   * @return the ModelAndView instance
   * @see #setExceptionAttribute
   */
  protected ModelAndView getModelAndView(String viewName, Exception ex) {
    ModelAndView mv = new ModelAndView(viewName);
    if (this.exceptionAttribute != null) {
      if (logger.isDebugEnabled()) {
        logger.debug("Exposing Exception as model attribute '" + this.exceptionAttribute + "'");
      }
      mv.addObject(this.exceptionAttribute, ex);
    }
    return mv;
  }

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    assertEquals(2, exceptionResolver.getOrder());
  }


  public void testDefaultErrorView() {
    exceptionResolver.setDefaultErrorView(DEFAULT_VIEW);
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler1, genericException);
    assertEquals(DEFAULT_VIEW, mav.getViewName());
    assertEquals(genericException, mav.getModel().get(SimpleMappingExceptionResolver.DEFAULT_EXCEPTION_ATTRIBUTE));
  }

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  }


  public void testDefaultErrorViewDifferentHandler() {
    exceptionResolver.setDefaultErrorView(DEFAULT_VIEW);
    exceptionResolver.setMappedHandlers(Collections.singleton(handler1));
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler2, genericException);
    assertNull("Handler not mapped - ModelAndView should be null", mav);
  }

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  }


  public void testDefaultErrorViewDifferentHandlerClass() {
    exceptionResolver.setDefaultErrorView(DEFAULT_VIEW);
    exceptionResolver.setMappedHandlerClasses(new Class[] {String.class});
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler2, genericException);
    assertNull("Handler not mapped - ModelAndView should be null", mav);
  }

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    ModelAndView mav = exceptionResolver.resolveException(request, response, handler2, genericException);
    assertNull("Handler not mapped - ModelAndView should be null", mav);
  }


  public void testNullDefaultErrorView() {
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler1, genericException);
    assertNull("No default error view set - ModelAndView should be null", mav);
  }

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  }


  public void testNullExceptionAttribute() {
    exceptionResolver.setDefaultErrorView(DEFAULT_VIEW);
    exceptionResolver.setExceptionAttribute(null);
    ModelAndView mav = exceptionResolver.resolveException(request, response, handler1, genericException);
    assertEquals(DEFAULT_VIEW, mav.getViewName());
    assertNull(mav.getModel().get(SimpleMappingExceptionResolver.DEFAULT_EXCEPTION_ATTRIBUTE));
  }

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