Struts2 JUnit ActionContext对象 [英] Struts2 JUnit ActionContext objects

问题描述

问题：Struts ActionContext 在测试期间为空

Problem: Struts ActionContext is null during test

使用Struts2 JUnit插件我有以下测试：

Using Struts2 JUnit plugin I have the following test:

public class MainActionIT extends StrutsJUnit4TestCase 
{
  @Test
  public void testAction() {
    Map<String, Object> application = new HashMap<String, Object>();
    application.put("options","home");
    ActionContext.getContext().put("application",application);
    ActionProxy proxy = getActionProxy("/home");
    String result = proxy.execute();

  }

}

这两个相关课程如下：

public class MainAction extends BaseAction 
{
  @Action(value = "/home", results = {@Result(name = "success", location = "home.jsp")}
  public String getHome()
  {
    Map options = getHomeOptions();
    return SUCCESS;
  }
}

public class BaseAction extends ActionSupport
{
  public Map getHomeOptions() 
  {
    return ActionContext.getContext().get("application").get("options");
  }
}

我正在尝试模拟 ActionContext的application对象使用 HashMap 。
在测试中设置值但是一旦代码在 BaseAction 中执行值为 null 。
此处类似问题（链接）但答案在我的情况下是不正确的。

I'm trying to mock the "application" object of the ActionContext with a HashMap. Values are set in the test but once the code executes in BaseAction the values are null. Similar problem here (link) but the answer isn't correct in my case.

是否有不同的 ActionContext 正在创建？如果是这样，我如何将变量传递给 BaseAction ？

Is there a different ActionContext being created? If so how can I pass a variable to the BaseAction?

推荐答案

在操作执行期间创建操作上下文。您应该检查此代码以证明该概念。

Action context is created during the action execution. You should check this code to proof the concept.

@Test
public void shouldAdditionalContextParamsBeAvailable() throws Exception {
    // given
    String key = "application";
    assertNull(ActionContext.getContext().get(key));

    // when
    String output = executeAction("/home");

    // then
    assertNotNull(ActionContext.getContext().get(key));
}

@Override
protected void applyAdditionalParams(ActionContext context) {
    Map<String, Object> application = new HashMap<String, Object>();
    application.put("options","home");
    context.put("application", application);
}

关于模板

applyAdditionalParams（ActionContext）可以在子类中覆盖
，以提供
动作调用期间使用的其他参数和设置

applyAdditionalParams(ActionContext) Can be overwritten in subclass to provide additional params and settings used during action invocation

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