struts mvc诠注

注解：struts2-convention-plugin-2.2.3.1.jar的annotation包下的注解类
1、注解Action
@Namespace("/collectionbook")
public class CollectionBookAction extends BaseAction 
{
}
2、注解方法
	1.跳转到视图
	@Action(value="initCollectionBook",
                 results = { @Result(name = "success", location= "xxx.jsp"),
			     @Result(name = "error", location = "xxx.error.jsp") 
			    } 
         )
	public String initCollectionBook()
	{ return "success";}
	2.跳转到同一action的另一个method
	@Action(value="initCollectionBook",
                 results = { @Result(name = "success", location= "selectCollectionBook")},
		 type="chain"											
         )
	public String initCollectionBook()
	{ return "success";}
	3.返回json
	@Namespace("/collectionbook")
	public class CollectionBookAction extends BaseAction 
	{
		private List<StudentHistoryAnswer> stuHisAnswers；
		//getter/setter方法
		@Action(value = "selectStuHisAnwsers", 
                        results = { @Result( name = "json", type = "json",
                                              params = {"root", "stuHisAnswers" }
                                            ) 
                                   }
                 )
		public String selectStuHisAnwsers()
		{
			List<StudentHistoryAnswer> stuHisAnswers=xxx;
			return "json";	
		}		
	}