UsernamePasswordAuthenticationToken什么意思

UsernamePasswordAuthenticationToken是Spring Security中的一个类，用于封装用户的用户名和密码信息，以便进行身份验证。它是Authentication接口的一个具体实现类。这个类还可以通过实现supports()方法来告诉Spring Security它所支持的认证类型，以便在验证过程中正确地选择使用它进行验证。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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