一.說明

SpringSecurity是一個用于Java 企業(yè)級應(yīng)用程序的安全框架,主要包含用戶認(rèn)證和用戶授權(quán)兩個方面.相比較Shiro而言,Security功能更加的強大,它可以很容易地擴展以滿足更多安全控制方面的需求,但也相對它的學(xué)習(xí)成本會更高,兩種框架各有利弊.實際開發(fā)中還是要根據(jù)業(yè)務(wù)和項目的需求來決定使用哪一種.

JWT是在Web應(yīng)用中安全傳遞信息的規(guī)范,從本質(zhì)上來說是Token的演變,是一種生成加密用戶身份信息的Token,特別適用于分布式單點登陸的場景,無需在服務(wù)端保存用戶的認(rèn)證信息,而是直接對Token進(jìn)行校驗獲取用戶信息,使單點登錄更為簡單靈活.

二.項目環(huán)境

SpringBoot版本:2.1.6

SpringSecurity版本: 5.1.5

MyBatis-Plus版本: 3.1.0

JDK版本:1.8

數(shù)據(jù)表(SQL文件在項目中):數(shù)據(jù)庫中測試號的密碼進(jìn)行了加密,密碼皆為123456

Maven依賴如下：

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!--Security依賴 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <!-- MybatisPlus 核心庫 -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.1.0</version>
        </dependency>
        <!-- 引入阿里數(shù)據(jù)庫連接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.6</version>
        </dependency>
        <!-- StringUtilS工具 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.5</version>
        </dependency>
        <!-- JSON工具 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.45</version>
        </dependency>
        <!-- JWT依賴 -->
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-jwt</artifactId>
            <version>1.0.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.0</version>
        </dependency>
</dependencies>
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配置如下:

# 配置端口
server:
  port: 8764
spring:
  # 配置數(shù)據(jù)源
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/sans_security?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false
    username: root
    password: 123456
    type: com.alibaba.druid.pool.DruidDataSource
# JWT配置
jwt:
  # 密匙KEY
  secret: JWTSecret
  # HeaderKEY
  tokenHeader: Authorization
  # Token前綴字符
  tokenPrefix: Sans-
  # 過期時間 單位秒 1天后過期=86400 7天后過期=604800
  expiration: 86400
  # 配置不需要認(rèn)證的接口
  antMatchers: /index/**,/login/**,/favicon.ico
# Mybatis-plus相關(guān)配置
mybatis-plus:
  # xml掃描贸弥，多個目錄用逗號或者分號分隔（告訴 Mapper 所對應(yīng)的 XML 文件位置）
  mapper-locations: classpath:mapper/*.xml
  # 以下配置均有默認(rèn)值,可以不設(shè)置
  global-config:
    db-config:
      #主鍵類型 AUTO:"數(shù)據(jù)庫ID自增" INPUT:"用戶輸入ID",ID_WORKER:"全局唯一ID (數(shù)字類型唯一ID)", UUID:"全局唯一ID UUID";
      id-type: AUTO
      #字段策略 IGNORED:"忽略判斷"  NOT_NULL:"非 NULL 判斷")  NOT_EMPTY:"非空判斷"
      field-strategy: NOT_EMPTY
      #數(shù)據(jù)庫類型
      db-type: MYSQL
  configuration:
    # 是否開啟自動駝峰命名規(guī)則映射:從數(shù)據(jù)庫列名到Java屬性駝峰命名的類似映射
    map-underscore-to-camel-case: true
    # 返回map時true:當(dāng)查詢數(shù)據(jù)為空時字段返回為null,false:不加這個查詢數(shù)據(jù)為空時，字段將被隱藏
    call-setters-on-nulls: true
    # 這個配置會將執(zhí)行的sql打印出來，在開發(fā)或測試的時候可以用
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
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三.編寫項目基礎(chǔ)類

Entity,Dao,Service,及等SpringSecurity用戶的Entity,Service類等在這里省略,請參考源碼

編寫JWT工具類

/**
 * JWT工具類
 * @Author Sans
 * @CreateTime 2019/10/2 7:42
 */
@Slf4j
public class JWTTokenUtil {

    /**
     * 生成Token
     * @Author Sans
     * @CreateTime 2019/10/2 12:16
     * @Param  selfUserEntity 用戶安全實體
     * @Return Token
     */
    public static String createAccessToken(SelfUserEntity selfUserEntity){
        // 登陸成功生成JWT
        String token = Jwts.builder()
                // 放入用戶名和用戶ID
                .setId(selfUserEntity.getUserId()+"")
                // 主題
                .setSubject(selfUserEntity.getUsername())
                // 簽發(fā)時間
                .setIssuedAt(new Date())
                // 簽發(fā)者
                .setIssuer("sans")
                // 自定義屬性 放入用戶擁有權(quán)限
                .claim("authorities", JSON.toJSONString(selfUserEntity.getAuthorities()))
                // 失效時間
                .setExpiration(new Date(System.currentTimeMillis() + JWTConfig.expiration))
                // 簽名算法和密鑰
                .signWith(SignatureAlgorithm.HS512, JWTConfig.secret)
                .compact();
        return token;
    }
}

編寫暫無權(quán)限處理類

/**
 * @Description 暫無權(quán)限處理類
 * @Author Sans
 * @CreateTime 2019/10/3 8:39
 */
@Component
public class UserAuthAccessDeniedHandler implements AccessDeniedHandler{
    /**
     * 暫無權(quán)限返回結(jié)果
     * @Author Sans
     * @CreateTime 2019/10/3 8:41
     */
    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException exception){
        ResultUtil.responseJson(response,ResultUtil.resultCode(403,"未授權(quán)"));
    }
}

編寫用戶未登錄處理類

/**
 * 用戶未登錄處理類
 * @Author Sans
 * @CreateTime 2019/10/3 8:55
 */
@Component
public class UserAuthenticationEntryPointHandler implements AuthenticationEntryPoint {
    /**
     * 用戶未登錄返回結(jié)果
     * @Author Sans
     * @CreateTime 2019/10/3 9:01
     */
    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception){
        ResultUtil.responseJson(response,ResultUtil.resultCode(401,"未登錄"));
    }
}

編寫登錄失敗處理類

/**
 * @Description 登錄失敗處理類
 * @Author Sans
 * @CreateTime 2019/10/3 9:06
 */
@Slf4j
@Component
public class UserLoginFailureHandler implements AuthenticationFailureHandler {
    /**
     * 登錄失敗返回結(jié)果
     * @Author Sans
     * @CreateTime 2019/10/3 9:12
     */
    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception){
        // 這些對于操作的處理類可以根據(jù)不同異常進(jìn)行不同處理
        if (exception instanceof UsernameNotFoundException){
            log.info("【登錄失敗】"+exception.getMessage());
            ResultUtil.responseJson(response,ResultUtil.resultCode(500,"用戶名不存在"));
        }
        if (exception instanceof LockedException){
            log.info("【登錄失敗】"+exception.getMessage());
            ResultUtil.responseJson(response,ResultUtil.resultCode(500,"用戶被凍結(jié)"));
        }
        if (exception instanceof BadCredentialsException){
            log.info("【登錄失敗】"+exception.getMessage());
            ResultUtil.responseJson(response,ResultUtil.resultCode(500,"用戶名密碼不正確"));
        }
        ResultUtil.responseJson(response,ResultUtil.resultCode(500,"登錄失敗"));
    }
}

編寫登錄成功處理類

/**
 * @Description 登錄成功處理類
 * @Author Sans
 * @CreateTime 2019/10/3 9:13
 */
@Slf4j
@Component
public class UserLoginSuccessHandler implements AuthenticationSuccessHandler {
    /**
     * 登錄成功返回結(jié)果
     * @Author Sans
     * @CreateTime 2019/10/3 9:27
     */
    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication){
        // 組裝JWT
        SelfUserEntity selfUserEntity =  (SelfUserEntity) authentication.getPrincipal();
        String token = JWTTokenUtil.createAccessToken(selfUserEntity);
        token = JWTConfig.tokenPrefix + token;
        // 封裝返回參數(shù)
        Map<String,Object> resultData = new HashMap<>();
        resultData.put("code","200");
        resultData.put("msg", "登錄成功");
        resultData.put("token",token);
        ResultUtil.responseJson(response,resultData);
    }
}

編寫登出成功處理類

/**
 * 用戶登出類
 * @Author Sans
 * @CreateTime 2019/10/3 9:42
 */
@Component
public class UserLogoutSuccessHandler implements LogoutSuccessHandler {
    /**
     * 用戶登出返回結(jié)果
     * 這里應(yīng)該讓前端清除掉Token
     * @Author Sans
     * @CreateTime 2019/10/3 9:50
     */
    @Override
    public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication){
        Map<String,Object> resultData = new HashMap<>();
        resultData.put("code","200");
        resultData.put("msg", "登出成功");
        SecurityContextHolder.clearContext();
        ResultUtil.responseJson(response,ResultUtil.resultSuccess(resultData));
    }
}

四.編寫Security核心類

編寫自定義登錄驗證類

/**
 * 自定義登錄驗證
 * @Author Sans
 * @CreateTime 2019/10/1 19:11
 */
@Component
public class UserAuthenticationProvider implements AuthenticationProvider {
    @Autowired
    private SelfUserDetailsService selfUserDetailsService;
    @Autowired
    private SysUserService sysUserService;
    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        // 獲取表單輸入中返回的用戶名
        String userName = (String) authentication.getPrincipal();
        // 獲取表單中輸入的密碼
        String password = (String) authentication.getCredentials();
        // 查詢用戶是否存在
        SelfUserEntity userInfo = selfUserDetailsService.loadUserByUsername(userName);
        if (userInfo == null) {
            throw new UsernameNotFoundException("用戶名不存在");
        }
        // 我們還要判斷密碼是否正確泳挥，這里我們的密碼使用BCryptPasswordEncoder進(jìn)行加密的
        if (!new BCryptPasswordEncoder().matches(password, userInfo.getPassword())) {
            throw new BadCredentialsException("密碼不正確");
        }
        // 還可以加一些其他信息的判斷溶诞，比如用戶賬號已停用等判斷
        if (userInfo.getStatus().equals("PROHIBIT")){
            throw new LockedException("該用戶已被凍結(jié)");
        }
        // 角色集合
        Set<GrantedAuthority> authorities = new HashSet<>();
        // 查詢用戶角色
        List<SysRoleEntity> sysRoleEntityList = sysUserService.selectSysRoleByUserId(userInfo.getUserId());
        for (SysRoleEntity sysRoleEntity: sysRoleEntityList){
            authorities.add(new SimpleGrantedAuthority("ROLE_" + sysRoleEntity.getRoleName()));
        }
        userInfo.setAuthorities(authorities);
        // 進(jìn)行登錄
        return new UsernamePasswordAuthenticationToken(userInfo, password, authorities);
    }
    @Override
    public boolean supports(Class<?> authentication) {
        return true;
    }
}

編寫自定義PermissionEvaluator注解驗證

/**
 * 自定義權(quán)限注解驗證
 * @Author Sans
 * @CreateTime 2019/10/6 13:31
 */
@Component
public class UserPermissionEvaluator implements PermissionEvaluator {
    @Autowired
    private SysUserService sysUserService;
    /**
     * hasPermission鑒權(quán)方法
     * 這里僅僅判斷PreAuthorize注解中的權(quán)限表達(dá)式
     * 實際中可以根據(jù)業(yè)務(wù)需求設(shè)計數(shù)據(jù)庫通過targetUrl和permission做更復(fù)雜鑒權(quán)
     * @Author Sans
     * @CreateTime 2019/10/6 18:25
     * @Param  authentication  用戶身份
     * @Param  targetUrl  請求路徑
     * @Param  permission 請求路徑權(quán)限
     * @Return boolean 是否通過
     */
    @Override
    public boolean hasPermission(Authentication authentication, Object targetUrl, Object permission) {
        // 獲取用戶信息
        SelfUserEntity selfUserEntity =(SelfUserEntity) authentication.getPrincipal();
        // 查詢用戶權(quán)限(這里可以將權(quán)限放入緩存中提升效率)
        Set<String> permissions = new HashSet<>();
        List<SysMenuEntity> sysMenuEntityList = sysUserService.selectSysMenuByUserId(selfUserEntity.getUserId());
        for (SysMenuEntity sysMenuEntity:sysMenuEntityList) {
            permissions.add(sysMenuEntity.getPermission());
        }
        // 權(quán)限對比
        if (permissions.contains(permission.toString())){
            return true;
        }
        return false;
    }
    @Override
    public boolean hasPermission(Authentication authentication, Serializable targetId, String targetType, Object permission) {
        return false;
    }
}

編寫SpringSecurity核心配置類

/**
 * SpringSecurity核心配置類
 * @Author Sans
 * @CreateTime 2019/10/1 9:40
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true) //開啟權(quán)限注解,默認(rèn)是關(guān)閉的
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    /**
     * 自定義登錄成功處理器
     */
    @Autowired
    private UserLoginSuccessHandler userLoginSuccessHandler;
    /**
     * 自定義登錄失敗處理器
     */
    @Autowired
    private UserLoginFailureHandler userLoginFailureHandler;
    /**
     * 自定義注銷成功處理器
     */
    @Autowired
    private UserLogoutSuccessHandler userLogoutSuccessHandler;
    /**
     * 自定義暫無權(quán)限處理器
     */
    @Autowired
    private UserAuthAccessDeniedHandler userAuthAccessDeniedHandler;
    /**
     * 自定義未登錄的處理器
     */
    @Autowired
    private UserAuthenticationEntryPointHandler userAuthenticationEntryPointHandler;
    /**
     * 自定義登錄邏輯驗證器
     */
    @Autowired
    private UserAuthenticationProvider userAuthenticationProvider;

    /**
     * 加密方式
     * @Author Sans
     * @CreateTime 2019/10/1 14:00
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder(){
        return new BCryptPasswordEncoder();
    }
    /**
     * 注入自定義PermissionEvaluator
     */
    @Bean
    public DefaultWebSecurityExpressionHandler userSecurityExpressionHandler(){
        DefaultWebSecurityExpressionHandler handler = new DefaultWebSecurityExpressionHandler();
        handler.setPermissionEvaluator(new UserPermissionEvaluator());
        return handler;
    }

    /**
     * 配置登錄驗證邏輯
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth){
        //這里可啟用我們自己的登陸驗證邏輯
        auth.authenticationProvider(userAuthenticationProvider);
    }
    /**
     * 配置security的控制邏輯
     * @Author Sans
     * @CreateTime 2019/10/1 16:56
     * @Param  http 請求
     */
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                //不進(jìn)行權(quán)限驗證的請求或資源(從配置文件中讀取)
               .antMatchers(JWTConfig.antMatchers.split(",")).permitAll()
                //其他的需要登陸后才能訪問
                .anyRequest().authenticated()
                .and()
                //配置未登錄自定義處理類
                .httpBasic().authenticationEntryPoint(userAuthenticationEntryPointHandler)
                .and()
                //配置登錄地址
                .formLogin()
                .loginProcessingUrl("/login/userLogin")
                //配置登錄成功自定義處理類
                .successHandler(userLoginSuccessHandler)
                //配置登錄失敗自定義處理類
                .failureHandler(userLoginFailureHandler)
                .and()
                //配置登出地址
                .logout()
                .logoutUrl("/login/userLogout")
                //配置用戶登出自定義處理類
                .logoutSuccessHandler(userLogoutSuccessHandler)
                .and()
                //配置沒有權(quán)限自定義處理類
                .exceptionHandling().accessDeniedHandler(userAuthAccessDeniedHandler)
                .and()
                // 開啟跨域
                .cors()
                .and()
                // 取消跨站請求偽造防護(hù)
                .csrf().disable();
        // 基于Token不需要session
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        // 禁用緩存
        http.headers().cacheControl();
        // 添加JWT過濾器
        http.addFilter(new JWTAuthenticationTokenFilter(authenticationManager()));
    }
}

五.編寫JWT攔截類

編寫JWT接口請求校驗攔截器

/**
 * JWT接口請求校驗攔截器
 * 請求接口時會進(jìn)入這里驗證Token是否合法和過期
 * @Author Sans
 * @CreateTime 2019/10/5 16:41
 */
@Slf4j
public class JWTAuthenticationTokenFilter extends BasicAuthenticationFilter {
    public JWTAuthenticationTokenFilter(AuthenticationManager authenticationManager) {
        super(authenticationManager);
    }
    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        // 獲取請求頭中JWT的Token
        String tokenHeader = request.getHeader(JWTConfig.tokenHeader);
        if (null!=tokenHeader && tokenHeader.startsWith(JWTConfig.tokenPrefix)) {
            try {
                // 截取JWT前綴
                String token = tokenHeader.replace(JWTConfig.tokenPrefix, "");
                // 解析JWT
                Claims claims = Jwts.parser()
                        .setSigningKey(JWTConfig.secret)
                        .parseClaimsJws(token)
                        .getBody();
                // 獲取用戶名
                String username = claims.getSubject();
                String userId=claims.getId();
                if(!StringUtils.isEmpty(username)&&!StringUtils.isEmpty(userId)) {
                    // 獲取角色
                    List<GrantedAuthority> authorities = new ArrayList<>();
                    String authority = claims.get("authorities").toString();
                    if(!StringUtils.isEmpty(authority)){
                        List<Map<String,String>> authorityMap = JSONObject.parseObject(authority, List.class);
                        for(Map<String,String> role : authorityMap){
                            if(!StringUtils.isEmpty(role)) {
                                authorities.add(new SimpleGrantedAuthority(role.get("authority")));
                            }
                        }
                    }
                    //組裝參數(shù)
                    SelfUserEntity selfUserEntity = new SelfUserEntity();
                    selfUserEntity.setUsername(claims.getSubject());
                    selfUserEntity.setUserId(Long.parseLong(claims.getId()));
                    selfUserEntity.setAuthorities(authorities);
                    UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(selfUserEntity, userId, authorities);
                    SecurityContextHolder.getContext().setAuthentication(authentication);
                }
            } catch (ExpiredJwtException e){
                log.info("Token過期");
            } catch (Exception e) {
                log.info("Token無效");
            }
        }
        filterChain.doFilter(request, response);
        return;
    }
}

六.權(quán)限注解和hasPermission權(quán)限擴展

Security允許我們在定義URL方法訪問所應(yīng)有的注解權(quán)限時使用SpringEL表達(dá)式,在定義所需的訪問權(quán)限時如果對應(yīng)的表達(dá)式返回結(jié)果為true則表示擁有對應(yīng)的權(quán)限,反之則沒有權(quán)限,會進(jìn)入到我們配置的UserAuthAccessDeniedHandler(暫無權(quán)限處理類)中進(jìn)行處理.這里舉一些例子,代碼中注釋有對應(yīng)的描述.

    /**
     * 管理端信息
     * @Author Sans
     * @CreateTime 2019/10/2 14:22
     * @Return Map<String,Object> 返回數(shù)據(jù)MAP
     */
    @PreAuthorize("hasRole('ADMIN')")
    @RequestMapping(value = "/info",method = RequestMethod.GET)
    public Map<String,Object> userLogin(){
        Map<String,Object> result = new HashMap<>();
        SelfUserEntity userDetails = SecurityUtil.getUserInfo();
        result.put("title","管理端信息");
        result.put("data",userDetails);
        return ResultUtil.resultSuccess(result);
    }
    /**
     * 擁有ADMIN或者USER角色可以訪問
     * @Author Sans
     * @CreateTime 2019/10/2 14:22
     * @Return Map<String,Object> 返回數(shù)據(jù)MAP
     */
    @PreAuthorize("hasAnyRole('ADMIN','USER')")
    @RequestMapping(value = "/list",method = RequestMethod.GET)
    public Map<String,Object> list(){
        Map<String,Object> result = new HashMap<>();
        List<SysUserEntity> sysUserEntityList = sysUserService.list();
        result.put("title","擁有用戶或者管理員角色都可以查看");
        result.put("data",sysUserEntityList);
        return ResultUtil.resultSuccess(result);
    }
    /**
     * 擁有ADMIN和USER角色可以訪問
     * @Author Sans
     * @CreateTime 2019/10/2 14:22
     * @Return Map<String,Object> 返回數(shù)據(jù)MAP
     */
    @PreAuthorize("hasRole('ADMIN') and hasRole('USER')")
    @RequestMapping(value = "/menuList",method = RequestMethod.GET)
    public Map<String,Object> menuList(){
        Map<String,Object> result = new HashMap<>();
        List<SysMenuEntity> sysMenuEntityList = sysMenuService.list();
        result.put("title","擁有用戶和管理員角色都可以查看");
        result.put("data",sysMenuEntityList);
        return ResultUtil.resultSuccess(result);
    }

通常情況下使用hasRole和hasAnyRole基本可以滿足大部分鑒權(quán)需求,但是有時候面對更復(fù)雜的場景上述常規(guī)表示式無法完成權(quán)限認(rèn)證,Security也為我們提供了解決方案.通過hasPermission()來擴展表達(dá)式.使用hasPermission()首先要實現(xiàn)PermissionEvaluator接口

/**
 * 自定義權(quán)限注解驗證
 * @Author Sans
 * @CreateTime 2019/10/6 13:31
 */
@Component
public class UserPermissionEvaluator implements PermissionEvaluator {
    @Autowired
    private SysUserService sysUserService;
    /**
     * hasPermission鑒權(quán)方法
     * 這里僅僅判斷PreAuthorize注解中的權(quán)限表達(dá)式
     * 實際中可以根據(jù)業(yè)務(wù)需求設(shè)計數(shù)據(jù)庫通過targetUrl和permission做更復(fù)雜鑒權(quán)
     * 當(dāng)然targetUrl不一定是URL可以是數(shù)據(jù)Id還可以是管理員標(biāo)識等,這里根據(jù)需求自行設(shè)計
     * @Author Sans
     * @CreateTime 2019/10/6 18:25
     * @Param  authentication  用戶身份(在使用hasPermission表達(dá)式時Authentication參數(shù)默認(rèn)會自動帶上)
     * @Param  targetUrl  請求路徑
     * @Param  permission 請求路徑權(quán)限
     * @Return boolean 是否通過
     */
    @Override
    public boolean hasPermission(Authentication authentication, Object targetUrl, Object permission) {
        // 獲取用戶信息
        SelfUserEntity selfUserEntity =(SelfUserEntity) authentication.getPrincipal();
        // 查詢用戶權(quán)限(這里可以將權(quán)限放入緩存中提升效率)
        Set<String> permissions = new HashSet<>();
        List<SysMenuEntity> sysMenuEntityList = sysUserService.selectSysMenuByUserId(selfUserEntity.getUserId());
        for (SysMenuEntity sysMenuEntity:sysMenuEntityList) {
            permissions.add(sysMenuEntity.getPermission());
        }
        // 權(quán)限對比
        if (permissions.contains(permission.toString())){
            return true;
        }
        return false;
    }
    @Override
    public boolean hasPermission(Authentication authentication, Serializable targetId, String targetType, Object permission) {
        return false;
    }
}

在請求方法上添加hasPermission示例

    /**
     * 擁有sys:user:info權(quán)限可以訪問
     * hasPermission 第一個參數(shù)是請求路徑 第二個參數(shù)是權(quán)限表達(dá)式
     * @Author Sans
     * @CreateTime 2019/10/2 14:22
     * @Return Map<String,Object> 返回數(shù)據(jù)MAP
     */
    @PreAuthorize("hasPermission('/admin/userList','sys:user:info')")
    @RequestMapping(value = "/userList",method = RequestMethod.GET)
    public Map<String,Object> userList(){
        Map<String,Object> result = new HashMap<>();
        List<SysUserEntity> sysUserEntityList = sysUserService.list();
        result.put("title","擁有sys:user:info權(quán)限都可以查看");
        result.put("data",sysUserEntityList);
        return ResultUtil.resultSuccess(result);
    }
復(fù)制代碼

hasPermission可以也可以和其他表達(dá)式聯(lián)合使用

    /**
     * 擁有ADMIN角色和sys:role:info權(quán)限可以訪問
     * @Author Sans
     * @CreateTime 2019/10/2 14:22
     * @Return Map<String,Object> 返回數(shù)據(jù)MAP
     */
    @PreAuthorize("hasRole('ADMIN') and hasPermission('/admin/adminRoleList','sys:role:info')")
    @RequestMapping(value = "/adminRoleList",method = RequestMethod.GET)
    public Map<String,Object> adminRoleList(){
        Map<String,Object> result = new HashMap<>();
        List<SysRoleEntity> sysRoleEntityList = sysRoleService.list();
        result.put("title","擁有ADMIN角色和sys:role:info權(quán)限可以訪問");
        result.put("data",sysRoleEntityList);
        return ResultUtil.resultSuccess(result);
    }

七.測試

創(chuàng)建賬戶這里用戶加密使用了Security推薦的bCryptPasswordEncoder方法

    /**
     * 注冊用戶
     */
    @Test
    public void contextLoads() {
        // 注冊用戶
        SysUserEntity sysUserEntity = new SysUserEntity();
        sysUserEntity.setUsername("sans");
        sysUserEntity.setPassword(bCryptPasswordEncoder.encode("123456"));
        // 設(shè)置用戶狀態(tài)
        sysUserEntity.setStatus("NORMAL");
        sysUserService.save(sysUserEntity);
        // 分配角色 1:ADMIN 2:USER
        SysUserRoleEntity sysUserRoleEntity = new SysUserRoleEntity();
        sysUserRoleEntity.setRoleId(2L);
        sysUserRoleEntity.setUserId(sysUserEntity.getUserId());
        sysUserRoleService.save(sysUserRoleEntity);
    }

登錄USER角色賬號,登錄成功后我們會獲取到身份認(rèn)證的Token

八.項目源碼

碼云:gitee.com/liselotte/s…

GitHub:github.com/xuyulong201…

謝謝大家閱讀,如果喜歡,請收藏點贊,多給些star,文章不足之處,也請給出寶貴意見.

作者：Sans_
鏈接：https://juejin.cn/post/6844903974546456590
來源：掘金
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