13.1启用对缓存的支持

package spittr.config;

import net.sf.ehcache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.concurrent.ConcurrentMapCacheManager;
import org.springframework.cache.ehcache.EhCacheCacheManager;
import org.springframework.cache.ehcache.EhCacheManagerFactoryBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;

/**
 * @version 版权 Copyright(c)2019 
 * @ClassName:
 * @Descripton: 开启缓存
 * @author: Shing
 * @date: 2020-07-13 14:34
 */
@Configuration
@EnableCaching
public class CachingConfig {

//    @Bean
//    public CacheManager cacheManager(){
//        //声明缓存管理器
//        //一个简单、可用、适用于开发、测试、基于内存的缓存
//        return new ConcurrentMapCacheManager();
//    }

    /**
     * Spring提供的缓存管理器
     * SimpleCacheManager
     * NoOpCacheManager
     * ConCurrentMapCacheManager
     * CompositeCacheManager
     * EhCacheManager
     * RedisCacheManager
     * GemfireCacheManager
     */

    /**
     * 创建spring的EhCacheCacheManager需要传入一个
     * net.sf.ehcache.CacheManager
     * @param ehcache
     * @return
     */
    @Bean
    public EhCacheCacheManager cacheManager(CacheManager ehcache){
        return new EhCacheCacheManager(ehcache);
    }

    /**
     * spring的EhCacheManagerFactoryBean提供了一个net.sf.ehcache.CacheManager
     * 的工厂生成类，生成net.sf.ehcache.CacheManager
     * @return
     */
    @Bean
    public EhCacheManagerFactoryBean ehcache(){
        EhCacheManagerFactoryBean ehCacheManagerFactoryBean =
                new EhCacheManagerFactoryBean();
        ehCacheManagerFactoryBean.setConfigLocation(
                new ClassPathResource("spittr/cache/ehcache.xml"));
        return ehCacheManagerFactoryBean;
    }


}

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