核心关键在于定义一个RedisCache实现mytis实现的Cache接口
1 **
2 * @author tele
3 * @Description RedisCache由于需要传入id, 由mybatis进行创建，所以如果需要为RedisCache注入RedisTemplateUtil，直接使用@Autowired无效
4 * @create 2019-09-07
5 */
6 public class RedisCache implements Cache {
7
8 private static RedisTemplateUtil templateUtil;
9
10 public static void setTemplateUtil(RedisTemplateUtil templateUtil) {
11 RedisCache.templateUtil = templateUtil;
12 }
13
14 //这个id实际是传入的mapper全限定名
15 private final String id;
16
17 public RedisCache(final String id) {
18 if (id == null) {
19 throw new IllegalArgumentException("Cache instances require an ID");
20 }
21 this.id = id;
22 }
23
24 public String getId() {
25 return id;
26 }
27
28 public void putObject(Object key, Object value) {
29 templateUtil.set(key, value);
30 }
31
32 public Object getObject(Object key) {
33 return templateUtil.get(key);
34 }
35
36 public Object removeObject(Object key) {
37 return null;
38 }
39
40 public void clear() {
41 templateUtil.clear();
42 }
43
44 public int getSize() {
45 return templateUtil.getSize();
46 }
47
48 public ReadWriteLock getReadWriteLock() {
49 return null;
50 }
51 }
定义中间类，注入工具类
1 @Component
2 public class RedisCacheTransfer {
3 @Autowired
4 private RedisTemplateUtil redisTemplateUtil;
5
6 @Autowired
7 public void setRedisTemplateUtil(){
8 RedisCache.setTemplateUtil(redisTemplateUtil);
9 }
10 }
工具类
1 /**
2 * @author tele
3 * @Description
4 * @create 2019-09-09
5 */
6 @Component
7 public class RedisTemplateUtil {
8 @Autowired
9 private RedisTemplate template;
10
11
12 public Object get(Object key) {
13 return template.opsForValue().get(key);
14 }
15
16 public void set(Object key,Object value){
17 template.opsForValue().set(key, value);
18 }
19
20 public int getSize() {
21 int size = (int) template.execute((RedisCallback<Integer>) connection -> {
22 return connection.dbSize().intValue();
23 });
24 return size;
25 }
26
27 public void clear() {
28 template.execute((RedisCallback) connection -> {
29 connection.flushDb();
30 return null;
31 });
32 }
33 }
在对应的mapper.xml中添加cache标签
测试的时候还是先加载ClassPathXmlContext，然后获得sqlSession，注意mybatis的增删改，flushCache=true，可如果你没有调用commit并不会清空缓存
applicationContext.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <beans xmlns="http://www.springframework.org/schema/beans"
3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4 xmlns:context="http://www.springframework.org/schema/context"
5 xmlns:p="http://www.springframework.org/schema/p"
6 xmlns:tx="http://www.springframework.org/schema/tx"
7 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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
8
9 <context:component-scan base-package="cn.tele"/>
10
11 <context:property-placeholder location="classpath:redis.properties,db.properties"/>
12
13
14 <!--数据源-->
15 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
16 <property name="jdbcUrl" value="${db.url}"/>
17 <property name="driverClass" value="${db.driver}"/>
18 <property name="user" value="${db.username}"/>
19 <property name="password" value="${db.password}"/>
20 <property name="initialPoolSize" value="${db.initialPoolSize}"/>
21 <property name="maxPoolSize" value="${db.maxPoolSize}"/>
22 <property name="maxIdleTime" value="${db.maxIdleTime}"/>
23 <property name="idleConnectionTestPeriod" value="${db.idleConnectionTestPeriod}"/>
24 <property name="testConnectionOnCheckout" value="true"/>
25 </bean>
26
27
28 <!--mybatis-->
29 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
30 <property name="mapperLocations" value="classpath*:cn/tele/bean/**/*.xml"/>
31 <property name="dataSource" ref="dataSource"/>
32 <property name="configurationProperties">
33 <props>
34 <prop key="cacheEnabled">true</prop>
35 <prop key="jdbcTypeForNull">NULL</prop>
36 <prop key="lazyLoadingEnabled">true</prop>
37 <prop key="aggressiveLazyLoading">false</prop>
38 </props>
39 </property>
40 </bean>
41
42 <!--扫描mapper-->
43 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
44 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
45 <property name="basePackage" value="cn.tele"/>
46 </bean>
47
48
49 <!--redis连接池属性设置-->
50 <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
51 <property name="maxIdle" value="${redis.maxIdle}"/>
52 <property name="maxTotal" value="${redis.maxTotal}"/>
53 </bean>
54
55 <bean id="jedisConnFactory"
56 class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
57 p:poolConfig-ref="poolConfig" p:port="${redis.port}" p:hostName="${redis.host}"/>
58
59 <bean id="redisTemplate"
60 class="org.springframework.data.redis.core.StringRedisTemplate"
61 p:connection-factory-ref="jedisConnFactory">
62 <!--序列化策略-->
63 <property name="keySerializer">
64 <bean class="org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer">
65 <constructor-arg type="java.lang.Class" value="java.lang.String"/>
66 </bean>
67 </property>
68
69 <property name="valueSerializer">
70 <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer">
71
72 </bean>
73 </property>
74
75 <property name="hashKeySerializer">
76 <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/>
77 </property>
78
79 <property name="hashValueSerializer">
80 <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/>
81 </property>
82 </bean>
83 </beans>