301°

在前后端分离项目中使用SpringBoot集成Shiro

前言

       这次在处理一个小项目时用到了前后端分离,服务端使用springboot2.x。权限验证使用了Shiro。前后端分离首先需要解决的是跨域问题,POST接口跨域时会预发送一个OPTIONS请求,浏览器收到响应后会继续执行POST请求。 前后端分离后为了保持会话状态使用session持久化插件shiro-redis,持久化session可以持久化到关系型数据库,也可以持久化到非关系型数据库(主要是重写SessionDao)。Shiro已提供了SessionDao接口和抽象类。如果项目中用到Swagger的话,还需要把swagger相关url放行。

    

搭建依赖

<dependency>
    <!--session持久化插件-->
	<groupId>org.crazycake</groupId>
	<artifactId>shiro-redis</artifactId>
	<version>3.2.3</version>
</dependency>
<dependency>
    <!--spring shiro依赖-->
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-spring</artifactId>
    <version>1.4.1</version>
</dependency>

 Shiro权限配置

1、ShiroConfig。这里主要是shiro核心配置。比如SecurityManager、SessionManager、CacheManager。

public class ShiroConfig {
@Value("${spring.redis.shiro.host}")
private String host;
@Value("${spring.redis.shiro.port}")
private int port;
@Value("${spring.redis.shiro.timeout}")
private int timeout;
@Value("${spring.redis.shiro.password}")
private String password;


/**
 * 权限规则配置
 **/
@Bean
public ShiroFilterFactoryBean shiroFilterFactoryBean(SecurityManager securityManager) {
    ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
    shiroFilterFactoryBean.setSecurityManager(securityManager);

    Map&lt;String, Filter&gt; filters = shiroFilterFactoryBean.getFilters();
    filters.put("authc", new MyFormAuthorizationFilter());

    Map&lt;String, String&gt; filterChainDefinitionMap = new LinkedHashMap&lt;&gt;();

    //swagger资源不拦截
    filterChainDefinitionMap.put("/swagger-ui.html", "anon");
    filterChainDefinitionMap.put("/swagger-resources/**/**", "anon");
    filterChainDefinitionMap.put("/v2/api-docs", "anon");
    filterChainDefinitionMap.put("/webjars/springfox-swagger-ui/**", "anon");
    filterChainDefinitionMap.put("/configuration/security", "anon");
    filterChainDefinitionMap.put("/configuration/ui", "anon");

    filterChainDefinitionMap.put("/login/ajaxLogin", "anon");
    filterChainDefinitionMap.put("/login/unauth", "anon");
    filterChainDefinitionMap.put("/login/logout", "anon");
    filterChainDefinitionMap.put("/login/register","anon");
    filterChainDefinitionMap.put("/**", "authc");

    shiroFilterFactoryBean.setLoginUrl("/login/unauth");
    shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
    return shiroFilterFactoryBean;
}


/**
 * shiro安全管理器(权限验证核心配置)
 **/
@Bean
public SecurityManager securityManager() {
    DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
    securityManager.setRealm(myShiroRealm());
    securityManager.setSessionManager(sessionManager());
    securityManager.setCacheManager(cacheManager());

    return securityManager;
}

/**
 * 会话管理
 **/
@Bean
public SessionManager sessionManager() {
    MySessionManager sessionManager = new MySessionManager();
    sessionManager.setSessionIdUrlRewritingEnabled(false); //取消登陆跳转URL后面的jsessionid参数
    sessionManager.setSessionDAO(sessionDAO());
    sessionManager.setGlobalSessionTimeout(-1);//不过期
    return sessionManager;
}

/**
 * 使用的是shiro-redis开源插件 缓存依赖
 **/
@Bean
public RedisManager redisManager() {
    RedisManager redisManager = new RedisManager();
    redisManager.setHost(host+":"+port);
    redisManager.setTimeout(timeout);
    redisManager.setPassword(password);
    return redisManager;
}

/**
 * 使用的是shiro-redis开源插件 session持久化
 **/
public RedisSessionDAO sessionDAO() {
    RedisSessionDAO redisSessionDAO = new RedisSessionDAO();
    redisSessionDAO.setRedisManager(redisManager());
    return redisSessionDAO;
}


/**
 * 缓存管理
 **/
@Bean
public CacheManager cacheManager() {
    RedisCacheManager redisCacheManager = new RedisCacheManager();
    redisCacheManager.setRedisManager(redisManager());
    return redisCacheManager;
}


/**
 * 权限管理
 **/
@Bean
public MyShiroRealm myShiroRealm() {

    return new MyShiroRealm();
}

}

 2、MyShiroRealm 用户身份验证、自定义权限。

public class MyShiroRealm extends AuthorizingRealm {
private Logger logger= LoggerFactory.getLogger(MyShiroRealm.class);

@Resource
UserDao userDao;


@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
    logger.info("===================权限验证==================");
    return null;
}



@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {

    UsernamePasswordToken token=(UsernamePasswordToken) authenticationToken;
    User currentUser=userDao.findUser(token.getUsername());
    if(null == currentUser){
        throw new AuthenticationException("账户不存在");
    }

    if(!currentUser.getPassword().equals(new String(token.getPassword()))){
        throw new IncorrectCredentialsException("账户密码不正确");
    }

    if(currentUser.getIsdel()==1){
        throw new LockedAccountException("账户已冻结");
    }

    Subject subject = SecurityUtils.getSubject();

    BIUser biUser=new BIUser();
    biUser.setUserId(currentUser.getUserId());
    biUser.setOrgId(currentUser.getOrgid());
    biUser.setUserName(currentUser.getUsername());
    biUser.setPassword(currentUser.getPassword());
    biUser.setSessionId(subject.getSession().getId().toString());
    biUser.setIsdel(currentUser.getIsdel());
    biUser.setCreateTime(currentUser.getCreatetime());

    logger.info("======已授权"+biUser.toString()+"====");

    return new SimpleAuthenticationInfo(biUser,biUser.getPassword(),biUser.getUserName());
}

}

 3、MySessionManager。shiro权限验证是根据客户端Cookie中的JSESSIONID值来确定身份是否合格。前后端分离后这个地方需要处理。客户端调用服务端登陆接口,验证通过后返回给客户端一个token值(这里我放的是sessionid)。客户端保存token值,然后调用其他接口时把token值放在header中。对前端来说也就是放在ajax的headers参数中。

public class MySessionManager extends DefaultWebSessionManager {
private static final String AUTHORIZATION = "Authorization";

private static final String REFERENCED_SESSION_ID_SOURCE = "Stateless request";

public MySessionManager() {
}

@Override
protected Serializable getSessionId(ServletRequest request, ServletResponse response) {
    //从前端ajax headers中获取这个参数用来判断授权
    String id = WebUtils.toHttp(request).getHeader(AUTHORIZATION);
    if (StringUtils.hasLength(id)) {
        request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_SOURCE, REFERENCED_SESSION_ID_SOURCE);
        request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID, id);
        request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_IS_VALID, Boolean.TRUE);
        return id;
    } else {
        //从前端的cookie中取值
        return super.getSessionId(request, response);
    }

}

}

 4、MyFormAuthorizationFilter。对于跨域的POST请求,浏览器发起POST请求前都会发送一个OPTIONS请求已确定服务器是否可用,OPTIONS请求通过后继续执行POST请求,而shiro自带的权限验证是无法处理OPTIONS请求的,所以这里需要重写isAccessAllowed方法。

public class MyFormAuthorizationFilter extends FormAuthenticationFilter {
    protected boolean isAccessAllowed(ServletRequest servletRequest, ServletResponse servletResponse, Object o) {
        HttpServletRequest httpServletRequest = WebUtils.toHttp(servletRequest);
        if ("OPTIONS".equals(httpServletRequest.getMethod())) {
            return true;
        }
        return super.isAccessAllowed(servletRequest, servletResponse, o);
    }

}

5、处理跨域

 @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedMethods("PUT", "DELETE", "GET", "POST")
                .allowedHeaders("*")
                .exposedHeaders("access-control-allow-headers", "access-control-allow-methods", "access-control-allow" +
                        "-origin", "access-control-max-age", "X-Frame-Options","Authorization")
                .allowCredentials(false).maxAge(3600);
}

 

    

原文链接:https://www.cnblogs.com/sword-successful/p/11093803.html

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