Springboot整合Shiro 学习笔记_shirofilterfactorybean.setloginurl-优快云博客

本文链接：https://blog.youkuaiyun.com/kay523393/article/details/124017538

环境搭建

1.引入依赖

<dependency>
     <groupId>org.apache.shiro</groupId>
     <artifactId>shiro-spring</artifactId>
     <version>1.4.0</version>
 </dependency>

2.编写配置类自定义Realm

shiro需要我们提供doGetAuthenticationInfo和doGetAuthorizationInfo的实现，已完成登录认证和权限信息。
自定义Realm，继承与AuthorizingRealm

public class MyRealm extends AuthorizingRealm {
	//授权
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        return null;
    }

	//认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        return null;
    }
}

3.ShiroConfig shiro配置

@Configuration
public class ShiroConfig {
    //当前用户 第三步
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager);
        return shiroFilterFactoryBean;
    }
    //安全管理器 第二步
    @Bean(name="securityManager")
    public DefaultWebSecurityManager getSecurityManager(@Qualifier("userRealm") MyRealm myRealm){
        DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();
        securityManager.setRealm(myRealm);
        return  securityManager;
    }
    //获取安全数据 第一步
    @Bean(name="userRealm")
    public MyRealm getRealm(){
        return new MyRealm();
    }
}

实现登录拦截

常用的过滤器如下：

authc：所有已登陆用户可访问
roles：有指定角色的用户可访问，通过[ ]指定具体角色，这里的角色名称与数据库中配置一致
perms：有指定权限的用户可访问，通过[ ]指定具体权限，这里的权限名称与数据库中配置一致
anon：所有用户可访问，通常作为指定页面的静态资源时使用

//认证失败、未认证 设置登录请求 
shiroFilterFactoryBean.setLoginUrl("/login");
//跳转未授权页面
shiroFilterFactoryBean.setUnauthorizedUrl("/unauthc");
shiroFilterFactoryBean.setSuccessUrl("/home/index");

Map<String,String> filterMap=new LinkedHashMap<>();
filterMap.put("/*", "anon");
filterMap.put("/authc/index", "authc");
filterMap.put("/authc/admin", "roles[admin]");
filterMap.put("/authc/renewable", "perms[Create,Update]");
filterMap.put("/authc/removable", "perms[Delete]");
shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);

实现用户认证

//认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        System.out.println("执行认证=============");
        //从数据库查到用户
        UsernamePasswordToken token = (UsernamePasswordToken) authenticationToken;//类型转换
        User user = userService.getUserByName(token.getUsername());
        if(user==null){
            return null;//会自动抛出异常
        }
        //shiro帮我们做密码认证
        return new SimpleAuthenticationInfo(user,user.getPwd(),"");
    }

//登录Controller
@RequestMapping("/login")
public String login(String username, String password, Model model){
    //获取当前用户
    Subject sub = SecurityUtils.getSubject();
    //封装用户的登录数据
    UsernamePasswordToken token =new  UsernamePasswordToken(username,password);
    //登录
    try {
        sub.login(token);//执行登录方法
        return "index";
    }catch (UnknownAccountException e){//用户名不存在
        model.addAttribute("msg","用户名不存在");
        return "login";
    }catch (IncorrectCredentialsException e){//密码不正确
        model.addAttribute("msg","密码不正确");
        return "login";
    }
}

##实现权限拦截
###配置类ShiroConfig ==>方法
```java
getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager)
filterMap.put("/user/add","perms[user:add]");
filterMap.put("/user/update","perms[user:update]");
shiroFilterFactoryBean.setUnauthorizedUrl("/unAuth");//未授权 跳转显示未授权

授权

//授权

类 MyRealm==>方法doGetAuthorizationInfo

  @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        System.out.println("执行授权=============");
        SimpleAuthorizationInfo info =new SimpleAuthorizationInfo();
        Subject sub = SecurityUtils.getSubject();
        User currentUser = (User) sub.getPrincipal();
        info.addStringPermission(currentUser.getPerms());
        return info;
    }

页面权限控制展示—整合Thymeleaf

1.依赖

<dependency>
    <groupId>com.github.theborakompanioni</groupId>
    <artifactId>thymeleaf-extras-shiro</artifactId>
    <version>2.0.0</version>
</dependency>

2.在ShiroConfig中配置ShiroDialect

/**
     * shiro方言  支持shiro标签
     * @return
     */
    @Bean
    public ShiroDialect shiroDialect() {
        return new ShiroDialect();
    }

3.命名空间

<html lang="zh_CN" xmlns:th="http://www.thymeleaf.org"
      xmlns:shiro="http://www.pollix.at/thymeleaf/shiro">
//作为属性控制
<button  type="button" shiro:authenticated="true" class="btn btn-outline btn-default">
    <i class="glyphicon glyphicon-plus" aria-hidden="true"></i>
</button>
//作为标签
<shiro:hasRole name="admin">
    <button type="button" class="btn btn-outline btn-default">
        <i class="glyphicon glyphicon-heart" aria-hidden="true"></i>
    </button>
</shiro:hasRole>