Java Spring Security 4:身份验证失败：密码与存储值不匹配

我在应用程序中使用spring安全性。用户可以正确登录到系统，但在几次登录和注销后，就不可能再次登录。我得到一个错误：

Authentication failed: password does not match stored value

我使用的java配置如下：

import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

@Configuration
@ImportResource("classpath:/root-context.xml")
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true, jsr250Enabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Autowired
private DataSource dataSource;

@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
    auth.jdbcAuthentication().dataSource(dataSource).passwordEncoder(new BCryptPasswordEncoder())
            .usersByUsernameQuery("select email,password, enabled from users where email=?")
            .authoritiesByUsernameQuery("select email, role from user_roles where email=?");
}

@Override
protected void configure(HttpSecurity http) throws Exception {
    http.exceptionHandling().accessDeniedPage("/403").and().authorizeRequests().antMatchers("/resources/**")
            .permitAll().anyRequest().hasAnyRole("EMPLOYEE", "ADMIN").and().formLogin().loginPage("/login")
            .permitAll().and().logout().logoutSuccessUrl("/logout").permitAll();
}

}

谁能告诉我，有什么问题吗

编辑

---

我发现，由于某种原因，数据库中保存的哈希不再正确，如果我用另一个哈希替换它，我可以再次登录。是什么原因造成的

您最近是否对配置进行了任何更改？我得到的唯一合理解释是您更改了

密码编码器

。或者您可能只在一个方面进行了更改：身份验证（编码器用于比较密码）或将用户持久化到DB中的服务/dao（编码器应用于加密清除密码）？