SpringSecurity+JWT认证

SpringSecurity+JWT认证

1.创建UserDetailsServiceImpl并继承UserDetailsService

代码如下

@Service
public class UserDetailsServiceImpl implements UserDetailsService {

    @Autowired
    private UserMapper userMapper;//用户查询Mapper
    @Autowired
    private MenuMapper menuMapper;//权限查询Mapper
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //查询用户信息
        LambdaQueryWrapper<User> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(User::getUserName,username);
        User user = userMapper.selectOne(queryWrapper);
        //如果没有查询到用户就抛出异常
        if (Objects.isNull(user)){
            throw new RuntimeException("用户名或密码错误");
        }
        //TODO 查询对应的权限信息
//        List<String> list=new ArrayList<>(Arrays.asList("test","admin"));
        List<String> list = menuMapper.selectPermsByUserId(user.getId());
        //把数据封装成UserDetails返回
        return new LoginUser(user,list);
    }
}

代码二

@Service
@Slf4j
public class SecurityUserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private SysUserService sysUserService;
    @Autowired
    private SysMenService sysMenService;
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        SysUser sysUser = sysUserService.getByUserName(username);
        if (sysUser==null){
            throw new UsernameNotFoundException("该用户不处在");
        }
        List<String>  userPermissions = sysMenService.queryPermissionByUserId(sysUser.getUserId());

        List<SimpleGrantedAuthority> authorities=new ArrayList<>();
        userPermissions.forEach(s -> {
            SimpleGrantedAuthority authority = new SimpleGrantedAuthority(s);
            authorities.add(authority);
        });
        MySercurityUser securiruUser=new MySercurityUser(sysUser);
        securiruUser.setAuthorities(authorities);
        return securiruUser;
    }
}

2.创建继承UserDetails的类

代码如下

@Data
@NoArgsConstructor
public class LoginUser implements UserDetails {
    private User user;
    private List<String> permissions;

    public LoginUser(User user, List<String> permissions) {
        this.user = user;
        this.permissions = permissions;
    }

    @JSONField(serialize = false)
    private List<GrantedAuthority> authorities=null;

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        if (authorities!=null){
            return authorities;
        }

        //把permissions中String类型的权限信息封装成SimpleGrantedAuthority（实现类）对象


        /*List<GrantedAuthority> authorities=new ArrayList<>();
        for (String permission : permissions) {
            SimpleGrantedAuthority authority = new SimpleGrantedAuthority(permission);
            authorities.add(authority);
        }*/

        authorities = permissions.stream()
                .map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
        return authorities;
    }

    @Override
    public String getPassword() {
        return user.getPassword();
    }

    @Override
    public String getUsername() {
        return user.getUserName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}

代码二


public class MySercurityUser implements UserDetails {
    private final SysUser sysUser;

    //用于存储权限的List
    private List<SimpleGrantedAuthority> authorities;
    public MySercurityUser(SysUser sysUser){
        this.sysUser=sysUser;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        //配置权限
        return authorities;
       /* GrantedAuthority grantedAuthority= () -> "null";
        List<GrantedAuthority> list=new ArrayList<>();
        list.add(grantedAuthority);
        return list;*/
    }

    public void setAuthorities(List<SimpleGrantedAuthority> authorities) {
        this.authorities = authorities;
    }

    @Override
    public String getPassword() {
        String mypassword=sysUser.getPassword();
        sysUser.setPassword(null);
        return mypassword;
    }

    @Override
    public String getUsername() {
        return this.sysUser.getUsername();
    }

    @Override
    public boolean isAccountNonExpired() {//账号是否过期
        return sysUser.getAccountNoExpired().equals(1);
    }

    @Override
    public boolean isAccountNonLocked() {//账号是否未锁定
        return sysUser.getAccountNoLocked().equals(1);
    }

    @Override
    public boolean isCredentialsNonExpired() {//凭据是否未过期
        return sysUser.getCredentialsNoExpired().equals(1);
    }

    @Override
    public boolean isEnabled() {
        return sysUser.getEnabled().equals(1);
    }
}

3.创建登录控制器LoginController

代码如下

@RestController
public class LoginController {
    @Autowired
    private LoginService loginService;

    @RequestMapping("/user/login")
    public ResponseResult login(@RequestBody User user){
        //登录
        return loginService.login(user);
    }
    @RequestMapping("/user/logout")
    public ResponseResult logout(){
        return loginService.logout();
    }
}

4.创建拦截器


@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    @Autowired
    private RedisCache redisCache;
    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        //获取token
        String token = request.getHeader("token");
        if (!StringUtils.hasText(token)) {
            //放行
            filterChain.doFilter(request, response);
            return;
        }
        //解析token
        String userid;
        try {
            Claims claims = JwtUtil.parseJWT(token);
            userid = claims.getSubject();
        } catch (Exception e) {
            throw new RuntimeException("token非法");
        }
        //从redis中获取用户信息
        String redisKey = "login:" + userid;
        LoginUser loginUser = redisCache.getCacheObject(redisKey);
        if (Objects.isNull(loginUser)){
            throw new RuntimeException("用户未登录");
        }

        //存入SecurityContextHolder
        //TODO 获取权限信息封装到Authentication中
        UsernamePasswordAuthenticationToken authenticationToken =
                new UsernamePasswordAuthenticationToken(loginUser,null,loginUser.getAuthorities());
        SecurityContextHolder.getContext().setAuthentication(authenticationToken);

        //放行
        filterChain.doFilter(request, response);

    }
}

5.SecurityConfig配置类


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

    //创建BCryptPasswordEncoder注入容器
    @Bean
    public BCryptPasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }

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

    @Autowired
    private AuthenticationEntryPointImpl authenticationEntryPoint;
    @Autowired
    private AccessDeniedHandlerImpl accessDeniedHandler;
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                //关闭csrf
                .csrf().disable()
                //不通过Session获取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                // 对于登录接口 允许匿名访问
                .antMatchers("/user/login").anonymous()
                .antMatchers("/testCors").hasAuthority("system:detp:list")
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated();

        //添加过滤器
        http.addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);

        //配置异常处理器
        http.exceptionHandling()
                //配置认真失败处理器
                .authenticationEntryPoint(authenticationEntryPoint)
                .accessDeniedHandler(accessDeniedHandler);
        //允许跨域请求
        http.cors();
    }
}

6.将字符串渲染到客户端工具类


public class WebUtils
{
    /**
     * 将字符串渲染到客户端
     * 
     * @param response 渲染对象
     * @param string 待渲染的字符串
     * @return null
     */
    public static void renderString(HttpServletResponse response, String string) {
        try
        {
            response.setStatus(200);
            response.setContentType("application/json");
            response.setCharacterEncoding("utf-8");
            response.getWriter().print(string);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }


    public static void setDownLoadHeader(String filename, ServletContext context, HttpServletResponse response) throws UnsupportedEncodingException {
        String mimeType = context.getMimeType(filename);//获取文件的mime类型
        response.setHeader("content-type",mimeType);
        String fname= URLEncoder.encode(filename,"UTF-8");
        response.setHeader("Content-disposition","attachment; filename="+fname);

//        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
//        response.setCharacterEncoding("utf-8");
    }
}

7.Redis工具栏


@SuppressWarnings(value = { "unchecked", "rawtypes" })
@Component
public class RedisCache
{
    @Autowired
    public RedisTemplate redisTemplate;

    /**
     * 缓存基本的对象，Integer、String、实体类等
     *
     * @param key 缓存的键值
     * @param value 缓存的值
     */
    public <T> void setCacheObject(final String key, final T value)
    {
        redisTemplate.opsForValue().set(key, value);
    }

    /**
     * 缓存基本的对象，Integer、String、实体类等
     *
     * @param key 缓存的键值
     * @param value 缓存的值
     * @param timeout 时间
     * @param timeUnit 时间颗粒度
     */
    public <T> void setCacheObject(final String key, final T value, final Integer timeout, final TimeUnit timeUnit)
    {
        redisTemplate.opsForValue().set(key, value, timeout, timeUnit);
    }

    /**
     * 设置有效时间
     *
     * @param key Redis键
     * @param timeout 超时时间
     * @return true=设置成功；false=设置失败
     */
    public boolean expire(final String key, final long timeout)
    {
        return expire(key, timeout, TimeUnit.SECONDS);
    }

    /**
     * 设置有效时间
     *
     * @param key Redis键
     * @param timeout 超时时间
     * @param unit 时间单位
     * @return true=设置成功；false=设置失败
     */
    public boolean expire(final String key, final long timeout, final TimeUnit unit)
    {
        return redisTemplate.expire(key, timeout, unit);
    }

    /**
     * 获得缓存的基本对象。
     *
     * @param key 缓存键值
     * @return 缓存键值对应的数据
     */
    public <T> T getCacheObject(final String key)
    {
        ValueOperations<String, T> operation = redisTemplate.opsForValue();
        return operation.get(key);
    }

    /**
     * 删除单个对象
     *
     * @param key
     */
    public boolean deleteObject(final String key)
    {
        return redisTemplate.delete(key);
    }

    /**
     * 删除集合对象
     *
     * @param collection 多个对象
     * @return
     */
    public long deleteObject(final Collection collection)
    {
        return redisTemplate.delete(collection);
    }

    /**
     * 缓存List数据
     *
     * @param key 缓存的键值
     * @param dataList 待缓存的List数据
     * @return 缓存的对象
     */
    public <T> long setCacheList(final String key, final List<T> dataList)
    {
        Long count = redisTemplate.opsForList().rightPushAll(key, dataList);
        return count == null ? 0 : count;
    }

    /**
     * 获得缓存的list对象
     *
     * @param key 缓存的键值
     * @return 缓存键值对应的数据
     */
    public <T> List<T> getCacheList(final String key)
    {
        return redisTemplate.opsForList().range(key, 0, -1);
    }

    /**
     * 缓存Set
     *
     * @param key 缓存键值
     * @param dataSet 缓存的数据
     * @return 缓存数据的对象
     */
    public <T> BoundSetOperations<String, T> setCacheSet(final String key, final Set<T> dataSet)
    {
        BoundSetOperations<String, T> setOperation = redisTemplate.boundSetOps(key);
        Iterator<T> it = dataSet.iterator();
        while (it.hasNext())
        {
            setOperation.add(it.next());
        }
        return setOperation;
    }

    /**
     * 获得缓存的set
     *
     * @param key
     * @return
     */
    public <T> Set<T> getCacheSet(final String key)
    {
        return redisTemplate.opsForSet().members(key);
    }

    /**
     * 缓存Map
     *
     * @param key
     * @param dataMap
     */
    public <T> void setCacheMap(final String key, final Map<String, T> dataMap)
    {
        if (dataMap != null) {
            redisTemplate.opsForHash().putAll(key, dataMap);
        }
    }

    /**
     * 获得缓存的Map
     *
     * @param key
     * @return
     */
    public <T> Map<String, T> getCacheMap(final String key)
    {
        return redisTemplate.opsForHash().entries(key);
    }

    /**
     * 往Hash中存入数据
     *
     * @param key Redis键
     * @param hKey Hash键
     * @param value 值
     */
    public <T> void setCacheMapValue(final String key, final String hKey, final T value)
    {
        redisTemplate.opsForHash().put(key, hKey, value);
    }

    /**
     * 获取Hash中的数据
     *
     * @param key Redis键
     * @param hKey Hash键
     * @return Hash中的对象
     */
    public <T> T getCacheMapValue(final String key, final String hKey)
    {
        HashOperations<String, String, T> opsForHash = redisTemplate.opsForHash();
        return opsForHash.get(key, hKey);
    }
    public void incrementCacheMapValue(String key,String hkey,int v){
        redisTemplate.opsForHash().increment(key,hkey,v);
    }

    /**
     * 删除Hash中的数据
     * 
     * @param key
     * @param hkey
     */
    public void delCacheMapValue(final String key, final String hkey)
    {
        HashOperations hashOperations = redisTemplate.opsForHash();
        hashOperations.delete(key, hkey);
    }

    /**
     * 获取多个Hash中的数据
     *
     * @param key Redis键
     * @param hKeys Hash键集合
     * @return Hash对象集合
     */
    public <T> List<T> getMultiCacheMapValue(final String key, final Collection<Object> hKeys)
    {
        return redisTemplate.opsForHash().multiGet(key, hKeys);
    }

    /**
     * 获得缓存的基本对象列表
     *
     * @param pattern 字符串前缀
     * @return 对象列表
     */
    public Collection<String> keys(final String pattern)
    {
        return redisTemplate.keys(pattern);
    }
}

Redis序列化配置类


/**
 * Redis使用FastJson序列化
 * 
 * @author sg
 */
public class FastJsonRedisSerializer<T> implements RedisSerializer<T>
{

    public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    private Class<T> clazz;

    static
    {
        ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
    }

    public FastJsonRedisSerializer(Class<T> clazz)
    {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException
    {
        if (t == null)
        {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException
    {
        if (bytes == null || bytes.length <= 0)
        {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);

        return JSON.parseObject(str, clazz);
    }


    protected JavaType getJavaType(Class<?> clazz)
    {
        return TypeFactory.defaultInstance().constructType(clazz);
    }
}

8.封装权限认证

新增MYExpressionRoot类

@Component("ex")
public class MYExpressionRoot {
    public boolean hasAuthority(String authority){
        //获取当前用户的权限
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        List<String> permissions = loginUser.getPermissions();
        //判断用户权限集合中是否存在authority
        return permissions.contains(authority);
    }
}

Controller层代码更改为

@RestController
public class HelloController {
    @RequestMapping("/hello")
    //@PreAuthorize("hasAuthority('system:detp:list11')")
    @PreAuthorize("@ex.hasAuthority('system:detp:list')")
    public String Hello(){
        return "hello";
    }
    @RequestMapping("/testCors")
    public ResponseResult testCors(){
        return new ResponseResult(200,"testCors");
    }
}

代码2：


@Service("ps")
public class PermissionService {
    /**
     * 判断当前用户是否具有permission
     * @param permission 要判断的权限
     * @return
     */
    public boolean hasPermission(String permission){
        //如果是超级管理员  直接返回true
        if(SecurityUtils.isAdmin()){
            return true;
        }
        //否则  获取当前登录用户所具有的权限列表 如何判断是否存在permission
        List<String> permissions = SecurityUtils.getLoginUser().getPermissions();
        return permissions.contains(permission);
    }
}

LoginUser不用修改

9.SecurityUtils工具类


public class SecurityUtils
{

    /**
     * 获取用户
     **/
    public static LoginUser getLoginUser()
    {
        return (LoginUser) getAuthentication().getPrincipal();
    }

    /**
     * 获取Authentication
     */
    public static Authentication getAuthentication() {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    public static Boolean isAdmin(){
        Long id = getLoginUser().getUser().getId();
        return id != null && 1L == id;
    }

    public static Long getUserId() {
        return getLoginUser().getUser().getId();
    }
}
posted @   大理鱼儿  阅读(86)  评论(0)  编辑  收藏  举报  
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