Redis之与SSM集成Spring注解式缓存

<redis.version>2.9.0</redis.version>
    <redis.spring.version>1.7.1.RELEASE</redis.spring.version>

<dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>${redis.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-redis</artifactId>
      <version>${redis.spring.version}</version>
    </dependency>

redis.hostName=127.0.0.1--->（数据库名）
redis.port=6379    --->（端口号）
redis.password=123456  ----->（密码）
redis.timeout=10000
redis.maxIdle=300
redis.maxTotal=1000
redis.maxWaitMillis=1000
redis.minEvictableIdleTimeMillis=300000
redis.numTestsPerEvictionRun=1024
redis.timeBetweenEvictionRunsMillis=30000
redis.testOnBorrow=true
redis.testWhileIdle=true
redis.expiration=3600

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:cache="http://www.springframework.org/schema/cache"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/cache
       http://www.springframework.org/schema/cache/spring-cache.xsd">
    <!-- 1. 引入properties配置文件 -->
    <!--<context:property-placeholder location="classpath:redis.properties" />-->
    <!-- 2. redis连接池配置-->
    <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <!--最大空闲数-->
        <property name="maxIdle" value="${redis.maxIdle}"/>
        <!--连接池的最大数据库连接数  -->
        <property name="maxTotal" value="${redis.maxTotal}"/>
        <!--最大建立连接等待时间-->
        <property name="maxWaitMillis" value="${redis.maxWaitMillis}"/>
        <!--逐出连接的最小空闲时间 默认1800000毫秒(30分钟)-->
        <property name="minEvictableIdleTimeMillis" value="${redis.minEvictableIdleTimeMillis}"/>
        <!--每次逐出检查时 逐出的最大数目 如果为负数就是 : 1/abs(n), 默认3-->
        <property name="numTestsPerEvictionRun" value="${redis.numTestsPerEvictionRun}"/>
        <!--逐出扫描的时间间隔(毫秒) 如果为负数,则不运行逐出线程, 默认-1-->
        <property name="timeBetweenEvictionRunsMillis" value="${redis.timeBetweenEvictionRunsMillis}"/>
        <!--是否在从池中取出连接前进行检验,如果检验失败,则从池中去除连接并尝试取出另一个-->
        <property name="testOnBorrow" value="${redis.testOnBorrow}"/>
        <!--在空闲时检查有效性, 默认false  -->
        <property name="testWhileIdle" value="${redis.testWhileIdle}"/>
    </bean>
    <!-- 3. redis连接工厂 -->
    <bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
          destroy-method="destroy">
        <property name="poolConfig" ref="poolConfig"/>
        <!--IP地址 -->
        <property name="hostName" value="${redis.hostName}"/>
        <!--端口号  -->
        <property name="port" value="${redis.port}"/>
        <!--如果Redis设置有密码  -->
        <property name="password" value="${redis.password}"/>
        <!--客户端超时时间单位是毫秒  -->
        <property name="timeout" value="${redis.timeout}"/>
    </bean>
    <!-- 4. redis操作模板,使用该对象可以操作redis
        hibernate课程中hibernatetemplete，相当于session，专门操作数据库。
    -->
    <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
        <property name="connectionFactory" ref="connectionFactory"/>
        <!--如果不配置Serializer，那么存储的时候缺省使用String，如果用User类型存储，那么会提示错误User can't cast to String！！  -->
        <property name="keySerializer">
            <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/>
        </property>
        <property name="valueSerializer">
            <bean class="org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer"/>
        </property>
        <property name="hashKeySerializer">
            <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/>
        </property>
        <property name="hashValueSerializer">
            <bean class="org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer"/>
        </property>
        <!--开启事务  -->
        <property name="enableTransactionSupport" value="true"/>
    </bean>
    <!--  5.配置缓存管理器  -->
    <bean id="redisCacheManager" class="org.springframework.data.redis.cache.RedisCacheManager">
        <constructor-arg name="redisOperations" ref="redisTemplate"/>
        <!--redis缓存数据过期时间单位秒-->
        <property name="defaultExpiration" value="${redis.expiration}"/>
        <!--是否使用缓存前缀，与cachePrefix相关-->
        <property name="usePrefix" value="true"/>
        <!--配置缓存前缀名称-->
        <property name="cachePrefix">
            <bean class="org.springframework.data.redis.cache.DefaultRedisCachePrefix">
                <constructor-arg index="0" value="-cache-"/>
            </bean>
        </property>
    </bean>
    <!--6.配置缓存生成键名的生成规则-->
    <bean id="cacheKeyGenerator" class="com.zking.ssm.redis.CacheKeyGenerator"></bean>
    <!--7.启用缓存注解功能-->
    <cache:annotation-driven cache-manager="redisCacheManager" key-generator="cacheKeyGenerator"/>
</beans>

package com.zking.ssm.redis;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.util.ClassUtils;
import java.lang.reflect.Array;
import java.lang.reflect.Method;
@Slf4j
public class CacheKeyGenerator implements KeyGenerator {
    // custom cache key
    public static final int NO_PARAM_KEY = 0;
    public static final int NULL_PARAM_KEY = 53;
    @Override
    public Object generate(Object target, Method method, Object... params) {
        StringBuilder key = new StringBuilder();
        key.append(target.getClass().getSimpleName()).append(".").append(method.getName()).append(":");
        if (params.length == 0) {
            key.append(NO_PARAM_KEY);
        } else {
            int count = 0;
            for (Object param : params) {
                if (0 != count) {//参数之间用,进行分隔
                    key.append(',');
                }
                if (param == null) {
                    key.append(NULL_PARAM_KEY);
                } else if (ClassUtils.isPrimitiveArray(param.getClass())) {
                    int length = Array.getLength(param);
                    for (int i = 0; i < length; i++) {
                        key.append(Array.get(param, i));
                        key.append(',');
                    }
                } else if (ClassUtils.isPrimitiveOrWrapper(param.getClass()) || param instanceof String) {
                    key.append(param);
                } else {//Java一定要重写hashCode和eqauls
                    key.append(param.hashCode());
                }
                count++;
            }
        }
        String finalKey = key.toString();
//        IEDA要安装lombok插件
        log.debug("using cache key={}", finalKey);
        return finalKey;
    }
}

package com.zking.shiro;
import com.zking.ssm.biz.ClazzBiz;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
 * @author小李飞刀
 * @site www.javaxl.com
 * @company xxx公司
 * @create  2022-10-26 15:29
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:applicationContext.xml"})
public class ClazzBizTest {
    @Autowired
    private ClazzBiz clazzBiz;
    @Test
    public void test1(){
        System.out.println(clazzBiz.selectByPrimaryKey(10));
        System.out.println(clazzBiz.selectByPrimaryKey(10));
    }
    @Test
    public void test2(){
        clazzBiz.deleteByPrimaryKey(10);
    }
}