我正在尝试设置一个基于REST的Web应用程序，其中前端使用Reactjs，后端使用Sping Boot 。我还尝试设置一个自定义身份验证提供程序，这就是我的问题开始的地方。当尝试测试登录API调用时，CustomAuthenticationProvider从未被调用，而是使用默认的DaoAuthenticationProvider。这导致登录报告“凭据错误”。
我已经上传了一个小示例应用程序到github：spring-boot-auth-demo
为了测试登录API，我使用了以下curl：

curl -H "Content-Type: application/json" -X POST -d '{"username":"admin","password":"admin"}' http://localhost:8080/api/users/login

CustomAuthenticationProvider会执行简单的使用者名称/密码检查，并传回UsernamePasswordAuthenticationToken对象。

package no.bluebit.demo;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

@Component
public class CustomAuthenticationProvider implements AuthenticationProvider {

private static final Logger logger =     LoggerFactory.getLogger(CustomAuthenticationProvider.class);

public CustomAuthenticationProvider() {
    logger.info("***CustomAuthenticationProvider created");
}

@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {

    if(authentication.getName().equals("admin")  && authentication.getCredentials().equals("admin")) {
        List<GrantedAuthority> grantedAuths = new ArrayList<>();
        grantedAuths.add(new SimpleGrantedAuthority("ROLE_USER"));
        grantedAuths.add(new SimpleGrantedAuthority("ROLE_ADMIN"));
        return new UsernamePasswordAuthenticationToken(authentication.getName(), authentication.getCredentials(), grantedAuths);
    } else {
        return null;
    }

}

@Override
public boolean supports(Class<?> authentication) {
    return UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication);
}

}

CustomAuthenticationProvider是使用SecurityConfiguration类连接的。在单步执行代码时，我可以看到CustomAuthenticationProvider不在用于对传入请求进行身份验证的提供程序列表中。

package no.bluebit.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
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;

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
    @Autowired
    private CustomAuthenticationProvider customAuthenticationProvider;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth
            .authenticationProvider(this.customAuthenticationProvider);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .authorizeRequests()
                .antMatchers("/api/users/login").permitAll()    // Permit access for all to login REST service
                .antMatchers("/").permitAll()                   // Neccessary to permit access to default document
            .anyRequest().authenticated().and()                 // All other requests require authentication
            .httpBasic().and()
            .logout().and()
            .csrf().disable();
    }
}

为什么这不管用？