做struts2登陆检验的时候遇到了一个问题：

输入http://localhost/login_validation/的目的是想显示

文件夹下的文件列表，无奈，使用struts框架，web.xml设定了<welcome-file-list>，该<welcome-file-list>中的下的文件不存在时，将显示错误。

所以该工程本身并没有错误，只需输入完整的文件路径，

http://localhost/login_validation/login.jsp

至此输入成功！

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