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Spring整合Redis完整實(shí)例代碼

發(fā)布時(shí)間：2020-09-24 05:11:07 來(lái)源：腳本之家 閱讀：114 作者：liuyazhuang 欄目：編程語(yǔ)言

做過(guò)大型軟件系統(tǒng)的同學(xué)都知道，隨著系統(tǒng)數(shù)據(jù)越來(lái)越龐大，越來(lái)越復(fù)雜，隨之帶來(lái)的問(wèn)題就是系統(tǒng)性能越來(lái)越差，尤其是頻繁操作數(shù)據(jù)庫(kù)帶來(lái)的性能損耗更為嚴(yán)重。很多業(yè)績(jī)大牛為此提出了眾多的解決方案和開(kāi)發(fā)了很多框架以優(yōu)化這種頻繁操作數(shù)據(jù)庫(kù)所帶來(lái)的性能損耗，其中，尤為突出的兩個(gè)緩存服務(wù)器是Memcached和Redis。今天，我們不講Memcached和Redis本身，這里主要為大家介紹如何使spring與Redis整合。

1、pom構(gòu)建

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
 
 <modelVersion>4.0.0</modelVersion> 
 <groupId>com.x.redis</groupId> 
 <artifactId>springredis</artifactId> 
 <version>0.0.1-SNAPSHOT</version> 
 
 <dependencies> 
 <dependency> 
  <groupId>org.springframework.data</groupId> 
  <artifactId>spring-data-redis</artifactId> 
  <version>1.0.2.RELEASE</version> 
 </dependency> 
 <dependency> 
  <groupId>org.springframework</groupId> 
  <artifactId>spring-test</artifactId> 
  <version>3.1.2.RELEASE</version> 
  <scope>test</scope> 
 </dependency> 
  
 <dependency> 
  <groupId>redis.clients</groupId> 
  <artifactId>jedis</artifactId> 
  <version>2.1.0</version> 
 </dependency> 
  
  <dependency> 
  <groupId>junit</groupId> 
  <artifactId>junit</artifactId> 
  <version>4.8.2</version> 
  <scope>test</scope> 
 </dependency> 
 </dependencies> 
</project>

2、spring配置文件(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:p="http://www.springframework.org/schema/p" 
 xmlns:context="http://www.springframework.org/schema/context" 
 xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" 
 xmlns:aop="http://www.springframework.org/schema/aop" 
 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"> 
 
 <context:property-placeholder location="classpath:redis.properties" /> 
 
 <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig"> 
  <property name="maxIdle" value="${redis.maxIdle}" /> 
  <property name="maxActive" value="${redis.maxActive}" /> 
  <property name="maxWait" value="${redis.maxWait}" /> 
  <property name="testOnBorrow" value="${redis.testOnBorrow}" /> 
 </bean> 
  
 <bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" 
  p:host-name="${redis.host}" p:port="${redis.port}" p:password="${redis.pass}" p:pool-config-ref="poolConfig"/> 
  
 <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate"> 
  <property name="connectionFactory" ref="connectionFactory" /> 
 </bean>   
  
 <bean id="userDao" class="com.lyz.dao.impl.UserDaoImpl" /> 
</beans>

3、redis.properties

# Redis settings 
redis.host=192.168.157.130 
redis.port=6379 
redis.pass=liuyazhuang 
 
 
redis.maxIdle=300 
redis.maxActive=600 
redis.maxWait=1000 
redis.testOnBorrow=true

4、User實(shí)體類

package com.lyz.entity; 
import java.io.Serializable; 
 
/** 
 * user實(shí)體類 
 * @author liuyazhuang 
 * 
 */ 
public class User implements Serializable { 
  
 private static final long serialVersionUID = -6011241820070393952L; 
 
 private String id; 
  
 private String name; 
  
 private String password; 


 public User() { 
   
 } 
  

 public User(String id, String name, String password) { 
  super(); 
  this.id = id; 
  this.name = name; 
  this.password = password; 
 } 
 
 /** 
  * 獲得id 
  * @return the id 
  */ 
 public String getId() { 
  return id; 
 } 
 
 /** 
  * 設(shè)置id 
  * @param id the id to set 
  */ 
 public void setId(String id) { 
  this.id = id; 
 } 
 
 /** 
  * 獲得name 
  * @return the name 
  */ 
 public String getName() { 
  return name; 
 } 
 
 /** 
  * 設(shè)置name 
  * @param name the name to set 
  */ 
 public void setName(String name) { 
  this.name = name; 
 } 
 
 /** 
  * 獲得password 
  * @return the password 
  */ 
 public String getPassword() { 
  return password; 
 } 
 
 /** 
  * 設(shè)置password 
  * @param password the password to set 
  */ 
 public void setPassword(String password) { 
  this.password = password; 
 } 
}

5、User操作的接口IUserDao

package com.lyz.dao; 
import java.util.List; 
import com.lyz.entity.User;  
/** 
 * user操作接口 
 * @author liuyazhuang 
 * 
 */ 
public interface IUserDao { 
  
 /** 
  * 新增 
  * @param user 
  * @return 
  */ 
 boolean add(User user); 
  
 /** 
  * 批量新增 使用pipeline方式 
  * @param list 
  * @return 
  */ 
 boolean add(List<User> list); 
  
 /** 
  * 刪除 
  * @param key 
  */ 
 void delete(String key); 
  
 /** 
  * 刪除多個(gè) 
  * @param keys 
  */ 
 void delete(List<String> keys); 
  
 /** 
  * 修改 
  * @param user 
  * @return 
  */ 
 boolean update(User user); 
 
 /** 
  * 通過(guò)key獲取 
  * @param keyId 
  * @return 
  */ 
 User get(String keyId); 
}

6、基本的抽象類

package com.lyz.dao.impl; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.data.redis.core.RedisTemplate; 
import org.springframework.data.redis.serializer.RedisSerializer; 
 
 
/** 
 * 基本的抽象類 
 * @author liuyazhuang 
 * 
 * @param <K> 
 * @param <V> 
 */ 
public abstract class AbstractBaseRedisDao<K, V> { 
  
 @Autowired 
 protected RedisTemplate<K, V> redisTemplate; 
 
 /** 
  * 設(shè)置redisTemplate 
  * @param redisTemplate the redisTemplate to set 
  */ 
 public void setRedisTemplate(RedisTemplate<K, V> redisTemplate) { 
  this.redisTemplate = redisTemplate; 
 } 
  
 /** 
  * 獲取 RedisSerializer 
  * <br>------------------------------<br> 
  */ 
 protected RedisSerializer<String> getRedisSerializer() { 
  return redisTemplate.getStringSerializer(); 
 } 
}

7、IUserDao的實(shí)現(xiàn)類UserDaoImpl

package com.lyz.dao.impl; 
import java.util.ArrayList; 
import java.util.List; 
import org.springframework.dao.DataAccessException; 
import org.springframework.data.redis.connection.RedisConnection; 
import org.springframework.data.redis.core.RedisCallback; 
import org.springframework.data.redis.serializer.RedisSerializer; 
import org.springframework.util.Assert; 
import com.lyz.dao.IUserDao; 
import com.lyz.entity.User;  
/** 
 * 接口的實(shí)現(xiàn)類 
 * @author liuyazhuang 
 * 
 */ 
public class UserDaoImpl extends AbstractBaseRedisDao<String, User> implements IUserDao { 
 
 /** 
  * 新增 
  * @param user 
  * @return 
  */ 
 public boolean add(final User user) { 
  boolean result = redisTemplate.execute(new RedisCallback<Boolean>() { 
   public Boolean doInRedis(RedisConnection connection) 
     throws DataAccessException { 
    RedisSerializer<String> serializer = getRedisSerializer(); 
    byte[] key = serializer.serialize(user.getId()); 
    byte[] name = serializer.serialize(user.getName()); 
    return connection.setNX(key, name); 
   } 
  }); 
  return result; 
 } 
  
 /** 
  * 批量新增 使用pipeline方式 
  *@param list 
  *@return 
  */ 
 public boolean add(final List<User> list) { 
  Assert.notEmpty(list); 
  boolean result = redisTemplate.execute(new RedisCallback<Boolean>() { 
   public Boolean doInRedis(RedisConnection connection) 
     throws DataAccessException { 
    RedisSerializer<String> serializer = getRedisSerializer(); 
    for (User user : list) { 
     byte[] key = serializer.serialize(user.getId()); 
     byte[] name = serializer.serialize(user.getName()); 
     connection.setNX(key, name); 
    } 
    return true; 
   } 
  }, false, true); 
  return result; 
 } 
  
 /** 
  * 刪除 
  * @param key 
  */ 
 public void delete(String key) { 
  List<String> list = new ArrayList<String>(); 
  list.add(key); 
  delete(list); 
 } 
 
 /** 
  * 刪除多個(gè) 
  * @param keys 
  */ 
 public void delete(List<String> keys) { 
  redisTemplate.delete(keys); 
 } 
 
 /** 
  * 修改 
  * @param user 
  * @return 
  */ 
 public boolean update(final User user) { 
  String key = user.getId(); 
  if (get(key) == null) { 
   throw new NullPointerException("數(shù)據(jù)行不存在, key = " + key); 
  } 
  boolean result = redisTemplate.execute(new RedisCallback<Boolean>() { 
   public Boolean doInRedis(RedisConnection connection) 
     throws DataAccessException { 
    RedisSerializer<String> serializer = getRedisSerializer(); 
    byte[] key = serializer.serialize(user.getId()); 
    byte[] name = serializer.serialize(user.getName()); 
    connection.set(key, name); 
    return true; 
   } 
  }); 
  return result; 
 } 
 
 /** 
  * 通過(guò)key獲取 
  * @param keyId 
  * @return 
  */ 
 public User get(final String keyId) { 
  User result = redisTemplate.execute(new RedisCallback<User>() { 
   public User doInRedis(RedisConnection connection) 
     throws DataAccessException { 
    RedisSerializer<String> serializer = getRedisSerializer(); 
    byte[] key = serializer.serialize(keyId); 
    byte[] value = connection.get(key); 
    if (value == null) { 
     return null; 
    } 
    String name = serializer.deserialize(value); 
    return new User(keyId, name, null); 
   } 
  }); 
  return result; 
 } 
}

8、測(cè)試類RedisTest

package com.lyz.test; 
import java.util.ArrayList; 
import java.util.List; 
import junit.framework.Assert; 
import org.junit.Test; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.test.context.ContextConfiguration; 
import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests; 
import com.lyz.dao.IUserDao; 
import com.lyz.entity.User; 
/** 
 * Redis測(cè)試類 
 * @author liuyazhuang 
 * 
 */ 
@ContextConfiguration(locations = {"classpath*:applicationContext.xml"}) 
public class RedisTest extends AbstractJUnit4SpringContextTests { 
  
 @Autowired 
 private IUserDao userDao; 
  
 /** 
  * 新增 
  */ 
 @Test 
 public void testAddUser() { 
  User user = new User(); 
  user.setId("user1"); 
  user.setName("liuyazhuang"); 
  boolean result = userDao.add(user); 
  Assert.assertTrue(result); 
 } 
  
 /** 
  * 批量新增 普通方式 
  */ 
 @Test 
 public void testAddUsers1() { 
  List<User> list = new ArrayList<User>(); 
  for (int i = 10; i < 50000; i++) { 
   User user = new User(); 
   user.setId("user" + i); 
   user.setName("liuyazhuang" + i); 
   list.add(user); 
  } 
  long begin = System.currentTimeMillis(); 
  for (User user : list) { 
   userDao.add(user); 
  } 
  System.out.println(System.currentTimeMillis() - begin); 
 } 
  
 /** 
  * 批量新增 pipeline方式 
  */ 
 @Test 
 public void testAddUsers2() { 
  List<User> list = new ArrayList<User>(); 
  for (int i = 10; i < 1500000; i++) { 
   User user = new User(); 
   user.setId("user" + i); 
   user.setName("liuyazhuang" + i); 
   list.add(user); 
  } 
  long begin = System.currentTimeMillis(); 
  boolean result = userDao.add(list); 
  System.out.println(System.currentTimeMillis() - begin); 
  Assert.assertTrue(result); 
 } 
  
 /** 
  * 修改 
  */ 
 @Test 
 public void testUpdate() { 
  User user = new User(); 
  user.setId("user1"); 
  user.setName("liuyazhuang"); 
  boolean result = userDao.update(user); 
  Assert.assertTrue(result); 
 } 
  
 /** 
  * 通過(guò)key刪除單個(gè) 
  */ 
 @Test 
 public void testDelete() { 
  String key = "user1"; 
  userDao.delete(key); 
 } 
  
 /** 
  * 批量刪除 
  */ 
 @Test 
 public void testDeletes() { 
  List<String> list = new ArrayList<String>(); 
  for (int i = 0; i < 10; i++) { 
   list.add("user" + i); 
  } 
  userDao.delete(list); 
 } 
  
 /** 
  * 獲取 
  */ 
 @Test 
 public void testGetUser() { 
  String id = "user1"; 
  User user = userDao.get(id); 
  Assert.assertNotNull(user); 
  Assert.assertEquals(user.getName(), "liuyazhuang"); 
 } 
 
 /** 
  * 設(shè)置userDao 
  * @param userDao the userDao to set 
  */ 
 public void setUserDao(IUserDao userDao) { 
  this.userDao = userDao; 
 } 
}

9、溫馨提示

項(xiàng)目下載地址：Spring-Redis_jb51.rar

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持億速云。

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