org.apache.shiro.authc.IncorrectCredentialsException: Submitted credentials for token  [org.apache.shiro.authc.UsernamePasswordToken - admin, rememberMe=true] did not match the expected credentials.	at org.apache.shiro.realm.AuthenticatingRealm.assertCredentialsMatch(AuthenticatingRealm.java:600)	at org.apache.shiro.realm.AuthenticatingRealm.getAuthenticationInfo(AuthenticatingRealm.java:578)	at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doSingleRealmAuthentication(ModularRealmAuthenticator.java:180)	at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doAuthenticate(ModularRealmAuthenticator.java:267)	at org.apache.shiro.authc.AbstractAuthenticator.authenticate(AbstractAuthenticator.java:198)	at org.apache.shiro.mgt.AuthenticatingSecurityManager.authenticate(AuthenticatingSecurityManager.java:106)	at org.apache.shiro.mgt.DefaultSecurityManager.login(DefaultSecurityManager.java:270)	at org.apache.shiro.subject.support.DelegatingSubject.login(DelegatingSubject.java:256)

　　

shiro在实现登陆认证的时候，一般从前端传来的是明文密码，而我们库中存放的是hash值，于是我们就需要转换下user的密码，

当然，我们有可能会在使用验证查询的时候，将user的密码转换成hash，然而在loginAction中，存放的user中的密码仍为明文，此时会出现错误