嗨，我正在学习Spring Security，我被困在自定义身份验证过滤器中。我有以下文件：主应用程序文件：SpringAuthApplication.java

package com.example.jwtauth;

import java.util.ArrayList;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

import com.example.jwtauth.models.Role;
import com.example.jwtauth.models.User;
import com.example.jwtauth.service.UserService;

@SpringBootApplication
public class SpringAuthApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringAuthApplication.class, args);
    }

    @Bean
    PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    CommandLineRunner run(UserService userService) {
        return args -> {
            userService.saveRole(new Role(null, "ROLE_USER"));
            userService.saveRole(new Role(null, "ROLE_MANAGER"));
            userService.saveRole(new Role(null, "ROLE_ADMIN"));
            userService.saveRole(new Role(null, "ROLE_SUPER_ADMIN"));

            userService.saveUser(new User(null, "Suvodip Mondal", "s.mondal", "1234", new ArrayList<Role>()));
            userService.addRoleToUser("s.mondal", "ROLE_SUPER_ADMIN");

            userService.saveUser(new User(null, "Akash Arora", "a.arora", "1234", new ArrayList<Role>()));
            userService.addRoleToUser("a.arora", "ROLE_ADMIN");

            userService.saveUser(new User(null, "Shubham Pathak", "s.pathak", "1234", new ArrayList<Role>()));
            userService.addRoleToUser("s.pathak", "ROLE_MANAGER");

            userService.saveUser(new User(null, "Karan Sharma", "k.sharma", "1234", new ArrayList<Role>()));
            userService.addRoleToUser("k.sharma", "ROLE_USER");
        };
    }

}

UserController.java：

package com.example.jwtauth.controllers;

import java.net.URI;
import java.util.List;

import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.support.ServletUriComponentsBuilder;

import com.example.jwtauth.models.User;
import com.example.jwtauth.service.UserService;

import lombok.Data;
import lombok.RequiredArgsConstructor;

@RestController
@RequestMapping("/api/users")
@RequiredArgsConstructor
public class UserController {
    private final UserService userService;

    @GetMapping("")
    public ResponseEntity<List<User>> getAllUsers() {
        return ResponseEntity.ok(userService.listAllUsers());
    }

    @PostMapping("/create")
    public ResponseEntity<User> createUser(@RequestBody User user) {
        // ServletUriComponentsBuilder.fromCurrentContextPath() - http://localhost:8080
        URI uri=  URI.create(ServletUriComponentsBuilder.fromCurrentContextPath().path("/api/user/create").toUriString());
        return ResponseEntity.created(uri).body(userService.saveUser(user));
    }

    @PostMapping("/add-role")
    public ResponseEntity<User> createRole(@RequestBody RoleToUserForm form) {
        userService.addRoleToUser(form.getUsername(), form.getRoleName());
        return ResponseEntity.ok().build();
    }

}

@Data
class RoleToUserForm {
    private String username;
    private String roleName;
}

我的安全配置文件SecurityConfig.java：

package com.example.jwtauth.security;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
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.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import com.example.jwtauth.service.filter.CustomAuthenticationFilter;

import org.springframework.security.config.http.SessionCreationPolicy;

import lombok.RequiredArgsConstructor;

@SuppressWarnings("deprecation")
@Configuration @EnableWebSecurity @RequiredArgsConstructor
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    private final BCryptPasswordEncoder encoder;
    private final UserDetailsService userDetailsService;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(encoder);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        System.out.println("-------------------Configure----------------------------------------");
        CustomAuthenticationFilter filter = new CustomAuthenticationFilter(authenticationManager());
//      filter.setFilterProcessesUrl("/api/users/create");
        http.csrf().disable();
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        http.authorizeRequests().anyRequest().permitAll();
        http.addFilter(filter);
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManager() throws Exception {
        return super.authenticationManagerBean();
    }
}

最后我的CustomAuthentication筛选器文件：CustomAuthenticationFilter.java：

package com.example.jwtauth.service.filter;

import java.io.IOException;
import java.sql.Date;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import com.auth0.jwt.JWT;
import com.auth0.jwt.algorithms.Algorithm;
import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;

public class CustomAuthenticationFilter extends UsernamePasswordAuthenticationFilter {
    private final AuthenticationManager authenticationManager;

    public CustomAuthenticationFilter(AuthenticationManager authenticationManager) {
        this.authenticationManager = authenticationManager;
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
            throws AuthenticationException {
        System.out.println("---------------request------"+request);
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);

        return authenticationManager.authenticate(token);
    }   

    @Override
    protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain,
            Authentication authResult) throws IOException, ServletException {
        User user = (User)authResult.getPrincipal();
        System.out.println("---------------user----------"+user);
        Algorithm algorithm = Algorithm.HMAC256("secret".getBytes());
        String access_token = JWT.create()
                .withSubject(user.getUsername())
                .withExpiresAt(new Date(System.currentTimeMillis()+10*60*1000))
                .withIssuer(request.getRequestURI().toString())
                .sign(algorithm);
        String refresh_token = JWT.create()
                .withSubject(user.getUsername())
                .withExpiresAt(new Date(System.currentTimeMillis()+30*60*1000))
                .withIssuer(request.getRequestURI().toString())
                .sign(algorithm);

        System.out.println("---------------access token------------"+access_token);
        System.out.println("---------------refresh token------------"+refresh_token);
        response.setHeader("access_token", access_token);
        response.setHeader("refresh_token", refresh_token);
        response.setContentType(APPLICATION_JSON_VALUE);
    }
}

所以我已经把日志放在attemptAuthentication方法中，但似乎请求没有到达那里。我所遵循的教程也是用formurlencoded调用API，但在我的例子中，我得到的是HttpMediaTypeNotSupportedException，但application/json在那里工作。但我相信数据类型不是问题，请求至少应该到达attemptAuthentication方法。我不明白那里出了什么问题，为了参考，我添加了项目github链接：https://github.com/smondal229/UserAuthService