SpringSecurity+JWT实现前后端分离的使用

文章首发于博主的公众号：Java4y

2021一起好好加油！ (ง •_•)ง

创建一个配置类 SecurityConfig 继承 WebSecurityConfigurerAdapter

package top.ryzeyang.demo.common.config;

import org.springframework.context.annotation.Bean;
import org.springframework.security.access.hierarchicalroles.RoleHierarchy;
import org.springframework.security.access.hierarchicalroles.RoleHierarchyImpl;
import org.springframework.security.authentication.AuthenticationManager;
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.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.factory.PasswordEncoderFactories;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
import top.ryzeyang.demo.common.filter.JwtAuthenticationTokenFilter;
import top.ryzeyang.demo.utils.JwtTokenUtil;


@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    final AuthenticationFailureHandler authenticationFailureHandler;
    final AuthenticationSuccessHandler authenticationSuccessHandler;
    final AuthenticationEntryPoint authenticationEntryPoint;
    final AccessDeniedHandler accessDeniedHandler;
    final LogoutSuccessHandler logoutSuccessHandler;

    public SecurityConfig(AuthenticationFailureHandler authenticationFailureHandler, AuthenticationSuccessHandler authenticationSuccessHandler, AuthenticationEntryPoint authenticationEntryPoint, AccessDeniedHandler accessDeniedHandler, LogoutSuccessHandler logoutSuccessHandler) {
        this.authenticationFailureHandler = authenticationFailureHandler;
        this.authenticationSuccessHandler = authenticationSuccessHandler;
        this.authenticationEntryPoint = authenticationEntryPoint;
        this.accessDeniedHandler = accessDeniedHandler;
        this.logoutSuccessHandler = logoutSuccessHandler;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return PasswordEncoderFactories.createDelegatingPasswordEncoder();
    }

    @Bean("users")
    public UserDetailsService users() {
        UserDetails user = User.builder()
                .username("user")
                .password("{bcrypt}$2a$10$1.NSMxlOyMgJHxOi8CWwxuU83G0/HItXxRoBO4QWZMTDp0tzPbCf.")
                .roles("USER")
//                roles 和 authorities 不能并存
//                .authorities(new String[]{"system:user:query", "system:user:edit", "system:user:delete"})
                .build();
        UserDetails admin = User.builder()
                .username("admin")
                .password("{bcrypt}$2a$10$1.NSMxlOyMgJHxOi8CWwxuU83G0/HItXxRoBO4QWZMTDp0tzPbCf.")
//                .roles("USER", "ADMIN")
                .roles("ADMIN")
//                .authorities("system:user:create")
                .build();
        return new InMemoryUserDetailsManager(user, admin);
    }

    /**
     * 角色继承：
     * 让Admin角色拥有User的角色的权限
     * @return
     */
    @Bean
    public RoleHierarchy roleHierarchy() {
        RoleHierarchyImpl result = new RoleHierarchyImpl();
        result.setHierarchy("ROLE_ADMIN > ROLE_USER");
        return result;
    }

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

    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers("/js/**", "/css/**", "/images/**");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // 自定义异常处理
        http.exceptionHandling()
                .authenticationEntryPoint(authenticationEntryPoint)
                .accessDeniedHandler(accessDeniedHandler)

                // 权限
                .and()
                .authorizeRequests()
                // 一个是必须待身份信息但是不校验权限。
                .antMatchers("/", "/mock/login").permitAll()
                //只允许匿名访问
                .antMatchers("/hello").anonymous()
                .anyRequest()
                .authenticated()

                // 表单登录
//                .and()
//                .formLogin()
//                .successHandler(authenticationSuccessHandler)
//                .failureHandler(authenticationFailureHandler)
//                .loginProcessingUrl("/login")
//                .permitAll()

                // 注销
                .and()
                .logout()
                .logoutUrl("/logout")
                .logoutSuccessHandler(logoutSuccessHandler)
                .permitAll()

                // 关闭csrf  会在页面中生成一个csrf_token
                .and()
                .csrf()
                .disable()

                // 基于token，所以不需要session
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
// 添加我们的JWT过滤器
        .and()
        .addFilterBefore(jwtAuthenticationTokenFilter(), UsernamePasswordAuthenticationFilter.class)
        ;
    }

    @Bean
    public JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter(){
        return new JwtAuthenticationTokenFilter();
    }

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

    @Bean
    public JwtTokenUtil jwtTokenUtil() {
        return new JwtTokenUtil();
    }
}

创建JWT过滤器 继承 OncePerRequestFilter

这里直接用的macro大佬 mall商城里的例子

package top.ryzeyang.demo.common.filter;

import lombok.extern.slf4j.Slf4j;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
import top.ryzeyang.demo.utils.JwtTokenUtil;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * JWT登录授权过滤器
 *
 * @author macro
 * @date 2018/4/26
 */
@Slf4j
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    @Qualifier("users")
    @Autowired
    private UserDetailsService userDetailsService;
    @Autowired
    private JwtTokenUtil jwtTokenUtil;
    @Value("${jwt.tokenHeader}")
    private String tokenHeader;
    @Value("${jwt.tokenHead}")
    private String tokenHead;
    @Override
    protected void doFilterInternal(HttpServletRequest request,
                                    HttpServletResponse response,
                                    FilterChain chain) throws ServletException, IOException {
        String authHeader = request.getHeader(this.tokenHeader);
        if (authHeader != null && authHeader.startsWith(this.tokenHead)) {
            String authToken = authHeader.substring(this.tokenHead.length());// The part after "Bearer "
            String username = jwtTokenUtil.getUserNameFromToken(authToken);
            log.info("checking username:{}", username);
            if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
                UserDetails userDetails = this.userDetailsService.loadUserByUsername(username);
                if (jwtTokenUtil.validateToken(authToken, userDetails)) {
                    UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
                    authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
                    log.info("authenticated user:{}", username);
                    SecurityContextHolder.getContext().setAuthentication(authentication);
                }
            }
        }
        chain.doFilter(request, response);
    }
}

自定义handler

这里主要介绍两个hanler，一个权限不足，一个验证失败的

权限不足 实现 AccessDeniedHandler

package top.ryzeyang.demo.common.handler;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.stereotype.Component;
import top.ryzeyang.demo.common.api.CommonResult;
import top.ryzeyang.demo.common.api.ResultEnum;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;


@Component
public class MyAccessDeineHandler implements AccessDeniedHandler {
    @Override
    public void handle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AccessDeniedException e) throws IOException, ServletException {
        httpServletResponse.setContentType("application/json;charset=utf-8");
        PrintWriter writer = httpServletResponse.getWriter();
        writer.write(new ObjectMapper().writeValueAsString(new CommonResult<>(ResultEnum.ACCESS_ERROR, e.getMessage())));
        writer.flush();
        writer.close();
    }
}

认证失败 实现 AuthenticationEntryPoint

如账号密码错误等验证不通过时

package top.ryzeyang.demo.common.handler;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;
import top.ryzeyang.demo.common.api.CommonResult;
import top.ryzeyang.demo.common.api.ResultEnum;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;


@Component
public class MyAuthenticationEntryPoint implements AuthenticationEntryPoint {
    @Override
    public void commence(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AuthenticationException e) throws IOException, ServletException {
        httpServletResponse.setContentType("application/json;charset=utf-8");
        PrintWriter writer = httpServletResponse.getWriter();
//         认证失败
        writer.write(new ObjectMapper().writeValueAsString(new CommonResult<>(ResultEnum.AUTHENTICATION_ERROR, e.getMessage())));
        writer.flush();
        writer.close();
    }
}

JWT工具类

这里直接用的macro大佬 mall商城里的例子

稍微改了一点，因为 JDK11 用的 jjwt 版本不一样 ，语法也有些不同

pom 文件中引入 jjwt

<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-api</artifactId>
    <version>0.11.2</version>
</dependency>
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-impl</artifactId>
    <version>0.11.2</version>
    <scope>runtime</scope>
</dependency>
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-jackson</artifactId> <!-- or jjwt-gson if Gson is preferred -->
    <version>0.11.2</version>
    <scope>runtime</scope>
</dependency>

JwtTokenUtil

package top.ryzeyang.demo.utils;

import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.StrUtil;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.io.Decoders;
import io.jsonwebtoken.security.Keys;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.core.userdetails.UserDetails;

import javax.crypto.SecretKey;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * JwtToken生成的工具类
 * JWT token的格式：header.payload.signature
 * header的格式（算法、token的类型）：
 * {"alg": "HS512","typ": "JWT"}
 * payload的格式（用户名、创建时间、生成时间）：
 * {"sub":"wang","created":1489079981393,"exp":1489684781}
 * signature的生成算法：
 * HMACSHA512(base64UrlEncode(header) + "." +base64UrlEncode(payload),secret)
 *
 * @author macro
 * @date 2018/4/26
 */
@Slf4j
public class JwtTokenUtil {
    private static final String CLAIM_KEY_USERNAME = "sub";
    private static final String CLAIM_KEY_CREATED = "created";

    @Value("${jwt.secret}")
    private String secret;

    @Value("${jwt.expiration}")
    private Long expiration;

    @Value("${jwt.tokenHead}")
    private String tokenHead;

    private SecretKey getSecretKey() {
        byte[] encodeKey = Decoders.BASE64.decode(secret);
        return Keys.hmacShaKeyFor(encodeKey);
    }

    /**
     * 根据负责生成JWT的token
     */
    private String generateToken(Map<String, Object> claims) {
        SecretKey secretKey = getSecretKey();
        return Jwts.builder()
                .setClaims(claims)
                .setExpiration(generateExpirationDate())
                .signWith(secretKey)
                .compact();
    }

    /**
     * 测试生成的token
     * @param claims
     * @return
     */
    public String generateToken2(Map<String, Object> claims) {
        SecretKey secretKey = getSecretKey();
        return Jwts.builder()
                .setClaims(claims)
                .setIssuer("Java4ye")
                .setExpiration(new Date(System.currentTimeMillis() + 1 * 1000))
                .signWith(secretKey)
                .compact();
    }

    /**
     * 从token中获取JWT中的负载
     */
    private Claims getClaimsFromToken(String token) {
        SecretKey secretKey = getSecretKey();
        Claims claims = null;
        try {
            claims = Jwts.parserBuilder()
                    .setSigningKey(secretKey)
                    .build()
                    .parseClaimsJws(token)
                    .getBody();
        } catch (Exception e) {
            log.info("JWT格式验证失败:{}", token);
        }
        return claims;
    }

    /**
     * 生成token的过期时间
     */
    private Date generateExpirationDate() {
        return new Date(System.currentTimeMillis() + expiration * 1000);
    }

    /**
     * 从token中获取登录用户名
     */
    public String getUserNameFromToken(String token) {
        String username;
        try {
            Claims claims = getClaimsFromToken(token);
            username = claims.getSubject();
        } catch (Exception e) {
            username = null;
        }
        return username;
    }

    /**
     * 验证token是否还有效
     *
     * @param token       客户端传入的token
     * @param userDetails 从数据库中查询出来的用户信息
     */
    public boolean validateToken(String token, UserDetails userDetails) {
        String username = getUserNameFromToken(token);
        return username.equals(userDetails.getUsername()) && !isTokenExpired(token);
    }

    /**
     * 判断token是否已经失效
     */
    private boolean isTokenExpired(String token) {
        Date expiredDate = getExpiredDateFromToken(token);
        return expiredDate.before(new Date());
    }

    /**
     * 从token中获取过期时间
     */
    private Date getExpiredDateFromToken(String token) {
        Claims claims = getClaimsFromToken(token);
        return claims.getExpiration();
    }

    /**
     * 根据用户信息生成token
     */
    public String generateToken(UserDetails userDetails) {
        Map<String, Object> claims = new HashMap<>();
        claims.put(CLAIM_KEY_USERNAME, userDetails.getUsername());
        claims.put(CLAIM_KEY_CREATED, new Date());
        return generateToken(claims);
    }

    /**
     * 当原来的token没过期时是可以刷新的
     *
     * @param oldToken 带tokenHead的token
     */
    public String refreshHeadToken(String oldToken) {
        if (StrUtil.isEmpty(oldToken)) {
            return null;
        }
        String token = oldToken.substring(tokenHead.length());
        if (StrUtil.isEmpty(token)) {
            return null;
        }
        //token校验不通过
        Claims claims = getClaimsFromToken(token);
        if (claims == null) {
            return null;
        }
        //如果token已经过期，不支持刷新
        if (isTokenExpired(token)) {
            return null;
        }
        //如果token在30分钟之内刚刷新过，返回原token
        if (tokenRefreshJustBefore(token, 30 * 60)) {
            return token;
        } else {
            claims.put(CLAIM_KEY_CREATED, new Date());
            return generateToken(claims);
        }
    }

    /**
     * 判断token在指定时间内是否刚刚刷新过
     *
     * @param token 原token
     * @param time  指定时间（秒）
     */
    private boolean tokenRefreshJustBefore(String token, int time) {
        Claims claims = getClaimsFromToken(token);
        Date created = claims.get(CLAIM_KEY_CREATED, Date.class);
        Date refreshDate = new Date();
        //刷新时间在创建时间的指定时间内
        if (refreshDate.after(created) && refreshDate.before(DateUtil.offsetSecond(created, time))) {
            return true;
        }
        return false;
    }
}

配置文件 application.yml

这里的 secret 可以用该方法生成

@Test
    void generateKey() {
        /**
         * SECRET 是签名密钥，只生成一次即可，生成方法：
         * Key key = Keys.secretKeyFor(SignatureAlgorithm.HS256);
         * String secretString = Encoders.BASE64.encode(key.getEncoded()); # 本文使用 BASE64 编码
         * */
        Key key = Keys.secretKeyFor(SignatureAlgorithm.HS512);
        String secretString = Encoders.BASE64.encode(key.getEncoded());
        System.out.println(secretString);
//        Blk1X8JlN4XH4s+Kuc0YUFXv+feyTgVUMycSiKbiL0YhRddy872mCNZBGZIb57Jn2V1RtaFXIxs8TvNPsnG//g==
    }

jwt:
 tokenHeader: Authorization
 secret: Blk1X8JlN4XH4s+Kuc0YUFXv+feyTgVUMycSiKbiL0YhRddy872mCNZBGZIb57Jn2V1RtaFXIxs8TvNPsnG//g==
 expiration: 604800
 tokenHead: 'Bearer '

server:
 servlet:
  context-path: /api

Controller

AuthController

package top.ryzeyang.demo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.web.bind.annotation.*;
import top.ryzeyang.demo.common.api.CommonResult;
import top.ryzeyang.demo.model.dto.UserDTO;
import top.ryzeyang.demo.utils.CommonResultUtil;
import top.ryzeyang.demo.utils.JwtTokenUtil;

import java.util.Collection;

@RestController
@ResponseBody
@RequestMapping("/mock")
public class AuthController {
    @Autowired
    private JwtTokenUtil jwtTokenUtil;
    @Qualifier("users")
    @Autowired
    private UserDetailsService userDetailsService;
    @Autowired
    AuthenticationManager authenticationManager;

    @GetMapping("/userinfo")
    public CommonResult<Collection<? extends GrantedAuthority>> getUserInfo(){
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        Collection<? extends GrantedAuthority> authorities = authentication.getAuthorities();
        return CommonResultUtil.success(authorities);
    }

    /**
     * 模拟登陆
     */
    @PostMapping("/login")
    public CommonResult<String> login(@RequestBody UserDTO userDTO){
        String username = userDTO.getUsername();
        String password = userDTO.getPassword();
        UsernamePasswordAuthenticationToken token
                = new UsernamePasswordAuthenticationToken(username, password);
        Authentication authenticate = authenticationManager.authenticate(token);
        SecurityContextHolder.getContext().setAuthentication(authenticate);
        UserDetails userDetails = userDetailsService.loadUserByUsername(username);
        String t = jwtTokenUtil.generateToken(userDetails);
        return CommonResultUtil.success(t);
    }

}

HelloController

package top.ryzeyang.demo.controller;

import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
public class HelloController {

    @GetMapping("/hello")
    public String hello() {
        return "hello";
    }

    @GetMapping("/hello/anonymous")
    public String hello2() {
        return "anonymous";
    }

    @PreAuthorize("hasRole('ADMIN')")
    @GetMapping("/hello/admin")
    public String helloAdmin() {
        return "hello Admin";
    }

    @PreAuthorize("hasRole('USER')")
    @GetMapping("/hello/user")
    public String helloUser() {
        return "hello user";
    }

    @PreAuthorize("hasAnyAuthority('system:user:query')")
    @GetMapping("/hello/user2")
    public String helloUser2() {
        return "hello user2";
    }

}

项目地址在GitHub上

地址：SpringSecurity-Vuetify-Permissions-demo ：https://github.com/RyzeYang/SpringSecurity-Vuetify-Permissions-demo

现在没法在线预览了

结合前端跑起来的样子如下????

本文地址：https://blog.csdn.net/weixin_40251892/article/details/112761246