message There is no Action mapped for namespace [/] and action name [login] associated with context

搭建struts工程出现以上问题：

1.排查关键字，xml中是不是有关键字写错如struts2,default等

2.action 表单一般要写成 xxxx.action 如：login.action

3.类写错了

比如execute 方法外面没有写@Override

  @Overridepublic String execute() {if (userName.equals("hellokitty") && password.equals("123")) {return SUCCESS;} else {return ERROR;}}

4.jar包少引入了

5.struts文件少写namespace

   <package name="default" namespace="/" extends="struts-default">

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