Spring Cache缓存的使用案例

拼搏现实的明天。 2022-04-13 02:26 188阅读 0赞

spring缓存的使用案例，未使用其他缓存工具

**spring/applicationContext.xml**

<?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">
    	
        <context:component-scan base-package="com.stu" />
    	<cache:annotation-driven/>
    
    	<bean id="cacheManager" class="org.springframework.cache.support.SimpleCacheManager">
    		<property name="caches">
    			<set>
    				<bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean">
    					<property name="name" value="default"/>
    				</bean>
    				<bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean">
    					<property name="name" value="getTime"/>
    				</bean>
    			</set>
    		</property>
    	</bean>
    </beans>

测试Service代码

**TestService**

package com.stu.service;
    
    /**
     * 作用：
     * 作者：Tiddler
     * 时间：2018/11/26 18：23
     * 类名： TestService
     **/
    public interface TestService {
        public String getTime();
    }

**TestServiceImpl**

package com.stu.service;
    
    import org.springframework.cache.annotation.Cacheable;
    import org.springframework.stereotype.Service;
    
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    /**
     * 作用：
     * 作者：Tiddler
     * 时间：2018/11/26 18：23
     * 类名： TestServiceImpl
     **/
    @Service
    public class TestServiceImpl implements TestService {
        @Cacheable(value = "getTime")//缓存注解
        @Override
        public String getTime() {
            SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy-MM-DD HH:mm:ss-S");
    
            return simpleDateFormat.format(new Date());
        }
    }

**测试类Main**

package com.stu;
    
    import com.stu.service.TestService;
    import org.apache.logging.log4j.LogManager;
    import org.apache.logging.log4j.Logger;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import java.util.Timer;
    import java.util.TimerTask;
    
    /**
     * 作用：
     * 作者：Tiddler
     * 时间：2018/11/26 18：18
     * 类名： Test
     **/
    public class Test {
        private static Logger log= LogManager.getLogger(Test.class);
        public static void main(String[] args) throws InterruptedException {
            ApplicationContext applicationContext=new ClassPathXmlApplicationContext("spring/applicationContext.xml");
            TestService bean = applicationContext.getBean(TestService.class);
            Timer timer=new Timer();
            for (int i=0;i<10;i++){
                Thread.sleep(1000);
                log.info("时间戳"+i+"：\t"+bean.getTime());
            }
        }
    }

最后实现效果

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMxMzg0NTUx_size_16_color_FFFFFF_t_70][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMxMzg0NTUx_size_16_color_FFFFFF_t_70]: /images/20220413/ab87edd81a674278a0d81711e1b832e2.png