No result defined for action and result success

public class CartmAction extends ActionSupport{

@Action(value = "toCartList", results = {

            @Result(name = SUCCESS, location = "/front/cs/cart/cartm.jsp")
            })

public String toCartList(){

return SUCCESS;

}

}

struts.xml配置：<package name="oa_global" extends="struts-default" namespace="/admin">

http://192.168.100.3:8080/zxcs/cartm!toCartList.action 会自动匹配路径，按照/admin默认路径路径自动匹配定位result；会出现No result defined for action and result success错误。

http://192.168.100.3:8080/zxcs/toCartList.action  会按照@Action配置的toCartList访问；正确。