spring缓存实例

深藏阁楼爱情的钟 2022-08-19 01:49 188阅读 0赞

这篇文章主要是对[上一篇][Link 1]文章介绍的spring缓存的技术进行的实现，可以在这里下[载源码][Link 2]。首先定义一个参数类，用来接收参数

Parametres

package org.springframework.democache.model;
    
    import java.io.Serializable;
    
    public class Parametres implements Serializable{
    	
    	private Long param1;
    	private String param2;
    	private String param3;
    	public Long getParam1() {
    		return param1;
    	}
    	public void setParam1(Long param1) {
    		this.param1 = param1;
    	}
    	public String getParam2() {
    		return param2;
    	}
    	public void setParam2(String param2) {
    		this.param2 = param2;
    	}
    	
    	public Parametres() {
    		super();
    	}
    	public Parametres(Long param1, String param2, String param3) {
    		super();
    		this.param1 = param1;
    		this.param2 = param2;
    		this.param3 = param3;
    	}
    	@Override
    	public int hashCode() {
    		final int prime = 31;
    		int result = 1;
    		result = prime * result + ((param1 == null) ? 0 : param1.hashCode());
    		result = prime * result + ((param2 == null) ? 0 : param2.hashCode());
    		result = prime * result + ((param3 == null) ? 0 : param3.hashCode());
    		return result;
    	}
    	@Override
    	public boolean equals(Object obj) {
    		if (this == obj)
    			return true;
    		if (obj == null)
    			return false;
    		if (getClass() != obj.getClass())
    			return false;
    		Parametres other = (Parametres) obj;
    		if (param1 == null) {
    			if (other.param1 != null)
    				return false;
    		} else if (!param1.equals(other.param1))
    			return false;
    		if (param2 == null) {
    			if (other.param2 != null)
    				return false;
    		} else if (!param2.equals(other.param2))
    			return false;
    		if (param3 == null) {
    			if (other.param3 != null)
    				return false;
    		} else if (!param3.equals(other.param3))
    			return false;
    		return true;
    	}
    }

Repose用来接收参数

package org.springframework.democache.model;
    
    import java.io.Serializable;
    
    public class Reponse implements Serializable{
    	
    	private Long id;
    	private String valeur;
    	
    	public Long getId() {
    		return id;
    	}
    	public void setId(Long id) {
    		this.id = id;
    	}
    	public String getValeur() {
    		return valeur;
    	}
    	public void setValeur(String valeur) {
    		this.valeur = valeur;
    	}
    	public Reponse(Long id, String valeur) {
    		super();
    		this.id = id;
    		this.valeur = valeur;
    	}
    	public Reponse() {
    		super();
    	}
    	
    	public boolean equals(Object other) {
    		if(!(other instanceof Reponse)) {
    			return false;
    		}
    		Reponse otherReponse = (Reponse) other;
    		return id == otherReponse.id && valeur == otherReponse.valeur;
    	}
    
    	public int hashCode() {
    		return id.intValue();
    	}
    
    }

service实现

package org.springframework.democache.service;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.cache.annotation.CacheEvict;
    import org.springframework.cache.annotation.CachePut;
    import org.springframework.cache.annotation.Cacheable;
    import org.springframework.democache.model.Parametres;
    import org.springframework.democache.model.Reponse;
    import org.springframework.stereotype.Service;
    
    @Service
    public class ServiceCacher {
    
        private static final Logger logger = LoggerFactory.getLogger(ServiceCacher.class);
    
    	@Cacheable("dataCache")
    	public Reponse getDatas(Parametres params){
    		logger.info("execution getDatas()");
    		Reponse Reponse=null;
    		if(params!=null){
    			Reponse=new Reponse(params.getParam1(), params.getParam2());
    		}
    		return Reponse;
    	}
    
    	
    	@Cacheable(value="dataCache",condition="#params.param1>100")
    	public Reponse getDatasWithCondition(Parametres params){
    		logger.info("execution getDatasWithCondition()");
    		Reponse Reponse=null;
    		if(params!=null){
    			Reponse=new Reponse(params.getParam1(), params.getParam2());
    		}
    		return Reponse;
    	}
    	
    	
    	@Cacheable(value="dataCache",key="#params.param1")
    	public Reponse getDatasWithKey(Parametres params){
    		logger.info("execution getDatasWithKey()");
    		Reponse Reponse=null;
    		if(params!=null){
    			Reponse=new Reponse(params.getParam1(), params.getParam2());
    		}
    		return Reponse;
    	}
    	
    	@CacheEvict(value="dataCache",allEntries=true)
    	public void viderCacheData(){
    		
    	}
    	
    	@CachePut("dataCache")
    	public Reponse getDatasWithPut(Parametres params){
    		logger.info("execution getDatasWithPut()");
    		Reponse Reponse=null;
    		if(params!=null){
    			Reponse=new Reponse(params.getParam1(), params.getParam2());
    		}
    		return Reponse;
    	}
    
    }

测试类

package org.springframework.democache.tests;
    
    import static org.fest.assertions.Assertions.assertThat;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.democache.model.Parametres;
    import org.springframework.democache.model.Reponse;
    import org.springframework.democache.service.ServiceCacher;
    import org.springframework.test.context.ContextConfiguration;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration(locations = {"/test-application-context.xml"})
    public class ServiceCacheTest {
    
        public static final Logger logger = LoggerFactory.getLogger(ServiceCacheTest.class);
    
        @Autowired
        private ServiceCacher service;
    
        @Test
        public void testCache() {
        	logger.info("Appel 1");
        	Reponse rep=service.getDatas(new Parametres(10L,"param1","param2"));
            assertThat(rep).isNotNull();
            
            logger.info("Appel 2");
            Reponse rep2=service.getDatas(new Parametres(10L,"param1","param2"));
            assertThat(rep2).isNotNull();
            assertThat(rep).isSameAs(rep2);
        }
    
        @Test
        public void testCacheCondition() {
        	logger.info("Appel 1");
        	Reponse rep1=service.getDatasWithCondition(new Parametres(90L,"param12","param22"));
            assertThat(rep1).isNotNull();
            logger.info("Appel 2");
            Reponse rep2=service.getDatasWithCondition(new Parametres(90L,"param12","param22"));
            assertThat(rep2).isNotNull();
            assertThat(rep1).isNotSameAs(rep2);
            assertThat(rep1).isEqualTo(rep2);
    
            Reponse rep3=service.getDatasWithCondition(new Parametres(110L,"param13","param23"));
            assertThat(rep3).isNotNull();
            logger.info("Appel 4");
            Reponse rep4=service.getDatasWithCondition(new Parametres(110L,"param13","param23"));
            assertThat(rep4).isNotNull();
            assertThat(rep3).isSameAs(rep4);
        }
        
        @Test
        public void testCacheKey() {
    
        	logger.info("Appel 1");
        	Reponse rep1=service.getDatasWithKey(new Parametres(90L,"param12","param22"));
            assertThat(rep1).isNotNull();
            logger.info("Appel 2");
            Reponse rep2=service.getDatasWithKey(new Parametres(90L,"param123","param223"));
            assertThat(rep2).isNotNull();
            assertThat(rep1).isSameAs(rep2);
            
            Reponse rep3=service.getDatasWithKey(new Parametres(110L,"param13","param23"));
            assertThat(rep3).isNotNull();
            logger.info("Appel 4");
            Reponse rep4=service.getDatasWithKey(new Parametres(30L,"param13","param23"));
            assertThat(rep4).isNotNull();
            assertThat(rep3).isNotSameAs(rep4);
            assertThat(rep3).isNotEqualTo(rep4);
        }
       
        @Test
        public void testCacheEvict() {
        	logger.info("Appel 1");
        	Reponse rep1=service.getDatas(new Parametres(90L,"param1","param2"));
            assertThat(rep1).isNotNull();
            logger.info("Appel 2");
            Reponse rep2=service.getDatas(new Parametres(90L,"param1","param2"));
            assertThat(rep2).isNotNull();
            assertThat(rep1).isSameAs(rep2);
            
            service.viderCacheData();
    
            logger.info("Appel 3");
            Reponse rep3=service.getDatas(new Parametres(90L,"param1","param2"));
            assertThat(rep3).isNotNull();
            assertThat(rep3).isNotSameAs(rep2);
            assertThat(rep3).isEqualTo(rep2);
        }
        
        @Test
        public void testCachePut() {
        	logger.info("Appel 1");
        	Reponse rep1=service.getDatas(new Parametres(90L,"param1","param2"));
            assertThat(rep1).isNotNull();
            logger.info("Appel 2");
            Reponse rep2=service.getDatas(new Parametres(90L,"param1","param2"));
            assertThat(rep2).isNotNull();
            assertThat(rep1).isSameAs(rep2);
            logger.info("Appel 3");
            Reponse rep3=service.getDatasWithPut(new Parametres(90L,"param1","param2"));
            assertThat(rep3).isNotNull();
            assertThat(rep3).isNotSameAs(rep2);
            assertThat(rep3).isEqualTo(rep2);
        }
    }

具体的分析可以看上一篇文章

[Link 1]: http://blog.csdn.net/maoyeqiu/article/details/50433934
[Link 2]: http://download.csdn.net/detail/maoyeqiu/9384151