Shiro项目配置与代码示例

1. 引入依赖项

在项目中引入Shiro组件的依赖项。通过Maven进行配置：


       
    
     org.apache.shiro
        
    
     shiro-spring
        
    
     1.4.1

2. 创建自定义的Realm类

创建一个继承自AuthorizingRealm的自定义Realm类，用于实现认证和授权功能。以下是一个示例代码：

public class CustomRealm extends AuthorizingRealm {    private final Map
   
     userInfoMap;    private final Map
    
     > permissionMap;    private final Map
     
      > roleMap;    {        userInfoMap = new HashMap<>();        userInfoMap.put("jack", "123");        userInfoMap.put("baixun", "123");        permissionMap = new HashMap<>();        Set
      
        set1 = new HashSet<>();        Set
       
         set2 = new HashSet<>();        set1.add("video:find");        set1.add("video:buy");        set2.add("video:add");        set2.add("video:delete");        permissionMap.put("jack", set1);        permissionMap.put("baixun", set2);        roleMap = new HashMap<>();        Set
        
          set1 = new HashSet<>(); Set
         
           set2 = new HashSet<>(); set1.add("role1"); set1.add("role2"); set2.add("root"); roleMap.put("jack", set1); roleMap.put("baixun", set2); } @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) { String name = (String) principals.getPrimaryPrincipal(); Set
          
            permissions = getPermissionsByNameFromDB(name); Set
           
             roles = getRolesByNameFromDB(name); SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo(); simpleAuthorizationInfo.setRoles(roles); simpleAuthorizationInfo.setStringPermissions(permissions); return simpleAuthorizationInfo; } @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException { String name = (String) token.getPrincipal(); String pwd = getPwdByUsernameFromDB(name); if (pwd == null || "".equals(pwd)) { return null; } return new SimpleAuthenticationInfo(name, pwd, this.getName()); } private String getPwdByUsernameFromDB(String name) { return userInfoMap.get(name); } private Set
            
              getRolesByNameFromDB(String name) { return roleMap.get(name); } private Set
             
               getPermissionsByNameFromDB(String name) { return permissionMap.get(name); }}

3. 配置Shiro核心安全配置

创建一个Shiro配置类，用于整合各种安全配置：

@Configurationpublic class ShiroConfig {    @Bean    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager securityManager) {        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();        shiroFilterFactoryBean.setSecurityManager(securityManager);        Map
   
     filterMap = new LinkedHashMap<>();        filterMap.put("/*", "authc");        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);        shiroFilterFactoryBean.setLoginUrl("/toLogin");        shiroFilterFactoryBean.setUnauthorizedUrl("/noAuth");        return shiroFilterFactoryBean;    }    @Bean(name = "securityManager")    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm) {        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();        securityManager.setRealm(userRealm);        return securityManager;    }    @Bean(name = "userRealm")    public UserRealm getRealm() {        return new UserRealm();    }    @Bean    public ShiroDialect getShiroDialect() {        return new ShiroDialect();    }}

4. 测试与验证

创建一个RestController，用于测试Shiro相关的认证和授权功能：

@RestControllerpublic class UserController {    @Autowired    private IUserService userService;    @RequestMapping(value = "test/login", method = RequestMethod.POST)    public String login(String username, String password) {        try {            Subject subject = SecurityUtils.getSubject();            UsernamePasswordToken token = new UsernamePasswordToken(username, password);            subject.login(token);            return "登录成功";        } catch (UnknownAccountException e) {            return "用户名错误";        } catch (IncorrectCredentialsException e) {            return "密码错误";        }    }    @GetMapping("/toLogin")    public String toLogin() {        return "登录页面";    }    @GetMapping("/noAuth")    public String noAuth() {        return "无权限访问";    }}