我有一个要求,我需要在执行actionB
时从actionA
获取请求参数。您可以在下面看到在strB
中计算actionB
背后有复杂的逻辑。我想获得strB
中的actionB
值,而不必重复复杂的逻辑。最好的方法是什么?
<action name="actionA"
class="com.mycompany.action.ActionA"
method="input">
<result name="input" type="tiles">page.actionA</result>
</action>
<action name="actionB"
class="com.mycompany.action.ActionB"
method="readFromCache">
<result name="input" type="tiles">page.actionB</result>
</action>
public class ActionA extends ActionSupport
private String strA = new String();
private String strB = new String();
public String input() throws Exception {
strA = "Hello";
// do something here to get strB from ActionB
strB = ...need help here...
return INPUT;
}
public String setStrA(String strA) throws Exception {
strA = strA;
}
public String getStrA() throws Exception {
return strA;
}
}
public class ActionB extends ActionSupport
private String strB = new String();
public String readFromCache() throws Exception {
strB = ...complex logic here...;
return INPUT;
}
public String setStrB(String strB) throws Exception {
strB = strB;
}
public String getStrB() throws Exception {
return strB;
}
}
最佳答案
最好的方法是基于意见。避免以这种方式提出问题;
解决问题的一种方法是,如果您有两个具有共同逻辑的动作,并且想实现DRY,只需create a parent Action,然后让ActionA和ActionB扩展ParentAction(本身扩展ActionSupport)而不是直接使用ActionSupport。
将父操作放入所有通用逻辑。 (does not belong to the business side ...不应采取任何行动的常见逻辑)