shiro学习

《十分钟入门》
1.导入依赖

<dependencies>
        		<!-- shiro -->
        		<dependency>
            			<groupId>org.apache.shiro</groupId>
            			<artifactId>shiro-core</artifactId>
            			<version>1.4.1</version>
        		</dependency>

        		<!--  configure logging  -->
        		<dependency>
            			<groupId>org.slf4j</groupId>
            			<artifactId>jcl-over-slf4j</artifactId>
            			<version>1.7.21</version>
        		</dependency>
        		<dependency>
            			<groupId>org.slf4j</groupId>
            			<artifactId>slf4j-log4j12</artifactId>
            			<version>1.7.21</version>
        		</dependency>

        		<dependency>
            			<groupId>log4j</groupId>
            			<artifactId>log4j</artifactId>
            			<version>1.2.12</version>
        		</dependency>
    	</dependencies>

2.配置文件:

log4j.properties

// An highlighted block
log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n

# General Apache libraries
log4j.logger.org.apache=WARN

# Spring
log4j.logger.org.springframework=WARN

# Default Shiro logging
log4j.logger.org.apache.shiro=INFO

# Disable verbose logging
log4j.logger.org.apache.shiro.util.ThreadContext=WARN
log4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN

shiro.ini

[users]
# user 'root' with password 'secret' and the 'admin' role
root = secret, admin
# user 'guest' with the password 'guest' and the 'guest' role
guest = guest, guest
# user 'presidentskroob' with password '12345' ("That's the same combination on
# my luggage!!!" ;)), and role 'president'
presidentskroob = 12345, president
# user 'darkhelmet' with password 'ludicrousspeed' and roles 'darklord' and 'schwartz'
darkhelmet = ludicrousspeed, darklord, schwartz
# user 'lonestarr' with password 'vespa' and roles 'goodguy' and 'schwartz'
lonestarr = vespa, goodguy, schwartz

# -----------------------------------------------------------------------------
# Roles with assigned permissions
#
# Each line conforms to the format defined in the
# org.apache.shiro.realm.text.TextConfigurationRealm#setRoleDefinitions JavaDoc
# -----------------------------------------------------------------------------
[roles]
# 'admin' role has all permissions, indicated by the wildcard '*'
admin = *
# The 'schwartz' role can do anything (*) with any lightsaber:
schwartz = lightsaber:*
# The 'goodguy' role is allowed to 'drive' (action) the winnebago (type) with
# license plate 'eagle5' (instance specific id)
goodguy = winnebago:drive:eagle5

3.HelloWord:

HelloWord:

class Quickstart {

    private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);


    public static void main(String[] args) {

        //基本的得到工厂对象操作
        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        SecurityManager securityManager = factory.getInstance();
        SecurityUtils.setSecurityManager(securityManager);

        //获得一个Subject对象
        Subject currentUser = SecurityUtils.getSubject();

        //通过当前用户拿到Session
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue");
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("Retrieved the correct value! [" + value + "]");
        }

        //判断当前用户是否被认证
        if (!currentUser.isAuthenticated()) {
            //token  令牌
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            //设置记住我
            token.setRememberMe(true);

            try {
                //进行登录操作
                currentUser.login(token);
            } catch (UnknownAccountException uae) {
                log.info("There is no user with username of " + token.getPrincipal());
            } catch (IncorrectCredentialsException ice) {
                log.info("Password for account " + token.getPrincipal() + " was incorrect!");
            } catch (LockedAccountException lae) {
                log.info("The account for username " + token.getPrincipal() + " is locked.  " +
                        "Please contact your administrator to unlock it.");
            }
            // ... catch more exceptions here (maybe custom ones specific to your application?
            catch (AuthenticationException ae) {
                //unexpected condition?  error?
            }
        }

        //say who they are:
        //print their identifying principal (in this case, a username):
        log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");

        //test a role:
        if (currentUser.hasRole("schwartz")) {
            log.info("May the Schwartz be with you!");
        } else {
            log.info("Hello, mere mortal.");
        }

        //粗粒度
        //test a typed permission (not instance-level)
        if (currentUser.isPermitted("lightsaber:wield")) {
            log.info("You may use a lightsaber ring.  Use it wisely.");
        } else {
            log.info("Sorry, lightsaber rings are for schwartz masters only.");
        }

        //细粒度
        //a (very powerful) Instance Level permission:
        if (currentUser.isPermitted("winnebago:drive:eagle5")) {
            log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
                    "Here are the keys - have fun!");
        } else {
            log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
        }

        //注销
        currentUser.logout();

        //结束
        System.exit(0);
    }
}

《完整过程》
1.导入相关依赖

	  <!--  shiro整合spring  -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.7.0</version>
        </dependency>

        <!--  shiro整合mybatis  -->
        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>mssql-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.12</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.12</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>


        <dependency>
            <groupId>org.thymeleaf</groupId>
            <artifactId>thymeleaf-spring5</artifactId>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-java8time</artifactId>
        </dependency>

2.写config类（spring环境已经搭建好了）

（1）Realm类

/**
 		* 自定义的Realm类，继承AuthorizingRealm
 		*/
		public class UserRealm extends AuthorizingRealm {

    			@Autowired
    			private AccountServiceImpl accountService;

   			 /**
     			* 授权
     			* @param principalCollection
     			* @return
     			*/
    			@Override
    			protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        				System.out.println("执行了--->授权方法");

        				//拿到当前登录的对象
        				Subject subject = SecurityUtils.getSubject();
        				Account currentAccount = (Account) subject.getPrincipal();

        				//授权信息
        				SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        				//将数据库中的权限信息赋值给当前信息
        				info.addStringPermission(currentAccount.getPerms());

        				return info;
   			 }

    			/**
     			* 认证
    			 * @param token
     			* @return
     			* @throws AuthenticationException
     			*/
    			@Override
    			protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        				System.out.println("执行了--->认证方法");

       		 		UsernamePasswordToken userToken = (UsernamePasswordToken) token;

        				//从数据库中获取数据
        				Account account = accountService.findAccountByName(userToken.getUsername());

        				//判断数据库中是否有当前对象，没有的话抛出异常，UnknownAccountException
        				if (account == null){
            					return null;
        				}

        				//密码认证
        				return new SimpleAuthenticationInfo(account,account.getPassword(),"");
    			}
		}

(2)ShiroConfig：

@Configuration
public class ShiroConfig {

    /**
     * 3.shiro过滤器工厂，ShiroFilterFactoryBean
     * @param defaultWebSecurityManager     安全管理器
     * @return                              过滤器工厂
     */
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        //实例化工厂对象
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();

        //设置安全管理器
        shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager);

        /**
         * 添加shiro的内置过滤器
         * anon:    无需认证就可以访问
         * authc:   必须认证了才可以访问
         * user:    必须有记住我才可以用（不常用）
         * perms：   拥有对某个资源的权限才能访问
         * role：    拥有某个角色权限才能访问
         */
        //拦截
        Map<String,String> filterMap = new LinkedHashMap<>();

        //授权，没有授权会跳转到未授权页面。
        filterMap.put("/user/add","perms[user:add]");
        filterMap.put("/user/update","perms[user:update]");

        filterMap.put("/user/*","authc");

        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);

        //设置登录的请求页面
        shiroFilterFactoryBean.setLoginUrl("/toLogin");

        //设置未授权页面
        shiroFilterFactoryBean.setUnauthorizedUrl("/noAuth");

        return shiroFilterFactoryBean;
    }

    /**
     * 2.DefaultWebSecurityManager
     * @param userRealm                     realm对象
     * @return                              安全管理器
     */
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        //实例化安全管理器对象
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();

        //关联Realm
        securityManager.setRealm(userRealm);

        return securityManager;
    }

    /**
     * 1.创建realm对象，自定义类，继承AuthorizingRealm
     * realm对象
     * @return                              realm对象
     */
    @Bean(name="userRealm")
    public UserRealm userRealm(){
        return new UserRealm();
    }
}

本文地址：https://blog.csdn.net/zmm__1377445292/article/details/109526158