Пример #1
0
 public String intercept(ActionInvocation invocation) throws Exception {
   // 将一个拦截结果的监听器注册给该拦截器
   invocation.addPreResultListener(new MyPreResultListener());
   System.out.println("execute方法执行之前的拦截...");
   // 调用下一个拦截器,或者Action的执行方法
   String result = invocation.invoke();
   System.out.println("execute方法执行之后的拦截...");
   return result;
 }
  /**
   * Discovers annotated methods on the action and calls them according to the workflow
   *
   * @see
   *     com.opensymphony.xwork2.interceptor.Interceptor#intercept(com.opensymphony.xwork2.ActionInvocation)
   */
  public String intercept(ActionInvocation invocation) throws Exception {
    final Object action = invocation.getAction();
    invocation.addPreResultListener(this);
    List<Method> methods =
        new ArrayList<Method>(AnnotationUtils.getAnnotatedMethods(action.getClass(), Before.class));
    if (methods.size() > 0) {
      // methods are only sorted by priority
      Collections.sort(
          methods,
          new Comparator<Method>() {
            public int compare(Method method1, Method method2) {
              return comparePriorities(
                  method1.getAnnotation(Before.class).priority(),
                  method2.getAnnotation(Before.class).priority());
            }
          });
      for (Method m : methods) {
        final String resultCode = (String) m.invoke(action, (Object[]) null);
        if (resultCode != null) {
          // shortcircuit execution
          return resultCode;
        }
      }
    }

    String invocationResult = invocation.invoke();

    // invoke any @After methods
    methods =
        new ArrayList<Method>(AnnotationUtils.getAnnotatedMethods(action.getClass(), After.class));

    if (methods.size() > 0) {
      // methods are only sorted by priority
      Collections.sort(
          methods,
          new Comparator<Method>() {
            public int compare(Method method1, Method method2) {
              return comparePriorities(
                  method1.getAnnotation(After.class).priority(),
                  method2.getAnnotation(After.class).priority());
            }
          });
      for (Method m : methods) {
        m.invoke(action, (Object[]) null);
      }
    }

    return invocationResult;
  }
  @Override
  public String intercept(ActionInvocation invocation) throws Exception {

    ActionContext invocationContext = invocation.getInvocationContext();
    Map<String, Object> conversionErrors = invocationContext.getConversionErrors();
    ValueStack stack = invocationContext.getValueStack();

    HashMap<Object, Object> fakie = null;

    for (Map.Entry<String, Object> entry : conversionErrors.entrySet()) {
      String propertyName = entry.getKey();
      Object value = entry.getValue();

      if (shouldAddError(propertyName, value)) {
        String message = XWorkConverter.getConversionErrorMessage(propertyName, stack);

        Object action = invocation.getAction();
        if (action instanceof ValidationAware) {
          ValidationAware va = (ValidationAware) action;
          va.addFieldError(propertyName, message);
        }

        if (fakie == null) {
          fakie = new HashMap<Object, Object>();
        }

        fakie.put(propertyName, getOverrideExpr(invocation, value));
      }
    }

    if (fakie != null) {
      // if there were some errors, put the original (fake) values in place right before the result
      stack.getContext().put(ORIGINAL_PROPERTY_OVERRIDE, fakie);
      invocation.addPreResultListener(
          new PreResultListener() {
            public void beforeResult(ActionInvocation invocation, String resultCode) {
              Map<Object, Object> fakie =
                  (Map<Object, Object>)
                      invocation.getInvocationContext().get(ORIGINAL_PROPERTY_OVERRIDE);

              if (fakie != null) {
                invocation.getStack().setExprOverrides(fakie);
              }
            }
          });
    }
    return invocation.invoke();
  }
Пример #4
0
  @Override
  public String intercept(ActionInvocation invocation) throws Exception {
    Object action = invocation.getAction();

    if (action instanceof ModelDriven) {
      ModelDriven modelDriven = (ModelDriven) action;
      ValueStack stack = invocation.getStack();
      Object model = modelDriven.getModel();
      if (model != null) {
        stack.push(model);
      }
      if (refreshModelBeforeResult) {
        invocation.addPreResultListener(new RefreshModelBeforeResult(modelDriven, model));
      }
    }
    return invocation.invoke();
  }