For other web applications, use a security-constraint element in the deployment descriptor.
对于其他的Web应用程序，请在部署描述符里面使用security - constraint元素来规定应用程序的安全约束。
The auth-constraint element is used to specify constraints for an authenticated user account that must be met prior to accessing protected pages.
auth-constraint元素用于指定对通过认证的用户帐户的约束，这些约束必须在访问受保护页面之前得到满足。
The web.xml file for the servlet contains a <security-constraint> element that defines the security constraint, the HTTP methods that it applies to, and the roles that use the constraint.
servlet的web.xml文件包含一个 <security-constraint>元素，该元素定义安全性约束、它应用的HTTP方法以及使用该约束的角色。
The web.xml file for the servlet contains a <security-constraint> element that defines the security constraint, the HTTP methods that it applies to, and the roles that use the constraint.
servlet的web.xml文件包含一个 <security-constraint>元素，该元素定义安全性约束、它应用的HTTP方法以及使用该约束的角色。
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