问题描述
要显示错误，我们需要包含错误消息的消息键.我创建一个名为 ApplicationError.properties 的新资源包，其中包含以下属性:
To display errors we need message keys which contains the error messages.I create a new resource bundle named ApplicationError.properties which contain this property:
app.error=Error: {0}
我尝试将此类从struts1更改为struts2，但是我在错误处理方面遇到了问题.我在struts2中找不到等效项
I try to change this class from struts1 to struts2, but I have a problem with error handling.I have not found the equivalent in struts2
public class MyAction extends Action{
public ActionForward execute(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception{
ActionErrors actionErrors = new ActionErrors();
ActionMessage message = new ActionMessage("app.error","Not Found Exception");
try{
//some code
}catch(NotFoundException e){
actionErrors.add(ActionErrors.GLOBAL_MESSAGE, message);
saveErrors(request, actionErrors);
return getErrorActionForward(actionMapping);
}
return getActionForward(actionMapping);
}
您能帮我吗?
推荐答案
结帐您的动作类要扩展的 ActionSupport 类.然后使用其方法添加错误.
Checkout ActionSupport class that your action class to extend. Then use its methods to add errors.
该类还实现了 TextProvider ，因此您可以从资源中获取本地化消息.
This class also implements a TextProvider, so you can get localized messages from the resources.
/** Add an Action-level error message to this Action. */
void addActionError(String anErrorMessage)
/** Add an Action-level message to this Action. */
void addActionMessage(String aMessage)
这篇关于迁移到Struts2的错误处理的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！