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在添加权限控制后，添加方法 查看

当用户访问”获取用户信息”、”新增用户”和”删除用户”的时，后台输出打印如下信息 ，

Druid数据源SQL监控

为了避免频繁访问数据库获取权限信息,在Shiro中加入缓存

缓存有基于Redis和Ehcache的

基于Redis

1.Shiro集成Redis的引入依赖

<dependency><groupId>org.crazycake</groupId><artifactId>shiro-redis</artifactId>
</dependency>

2.Redis配置

spring.redis.host=localhost
spring.redis.port=6379
spring.redis.jedis.pool.max-active=8
spring.redis.jedis.pool.max-wait=-1
spring.redis.jedis.pool.max-idle=8
spring.redis.jedis.pool.min-idle=0
spring.redis.timeout=0

3.在ShiroConfig中配置Redis

public RedisManager redisManager() {RedisManager redisManager = new RedisManager();return redisManager;
}public RedisCacheManager cacheManager() {RedisCacheManager redisCacheManager = new RedisCacheManager();redisCacheManager.setRedisManager(redisManager());return redisCacheManager;
}

在SecurityManager中加入RedisCacheManager

@Beanpublic SecurityManager securityManager() {DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();……securityManager.setCacheManager(cacheManager());return securityManager;}

4.测试

启动项目

访问访问”获取用户信息”、”新增用户”和”删除用户”，后台只打印一次获取权限信息

Druid数据源SQL监控

 

基于Ehcache

1.添加依赖

<!-- shiro ehcache -->
<dependency><groupId>org.apache.shiro</groupId><artifactId>shiro-ehcache</artifactId><version>1.4.1</version>
</dependency>
<!-- ehchache -->
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency><groupId>net.sf.ehcache</groupId><artifactId>ehcache</artifactId>
</dependency>

2.添加配置

src\main\resources\config下添加shiro-ehcache.xml

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd"updateCheck="false"><diskStore path="java.io.tmpdir/Tmp_EhCache"/><defaultCachemaxElementsInMemory="10000"eternal="false"timeToIdleSeconds="120"timeToLiveSeconds="120"overflowToDisk="false"diskPersistent="false"diskExpiryThreadIntervalSeconds="120"/><!-- 登录记录缓存锁定1小时 --><cachename="passwordRetryCache"maxEntriesLocalHeap="2000"eternal="false"timeToIdleSeconds="3600"timeToLiveSeconds="0"overflowToDisk="false"statistics="true"/>
</ehcache>

3.在ShiroConfig中

　　注入Ehcache缓存

　　添加getEhCacheManager()

@Bean
public EhCacheManager getEhCacheManager() {EhCacheManager em = new EhCacheManager();em.setCacheManagerConfigFile("classpath:config/shiro-ehcache.xml");return em;
}

　　将缓存对象注入到SecurityManager中

　　修改securityManager()

@Beanpublic SecurityManager securityManager() {DefaultWebSecurityManager securityManager =  new DefaultWebSecurityManager();securityManager.setRealm(myShiroRealm());securityManager.setRememberMeManager(rememberMeManager());securityManager.setCacheManager(getEhCacheManager());return securityManager;}

4.测试

　　启动项目，分别访问访问”获取用户信息”、”新增用户”，只获取一次权限信息