Spring整合Redis完整實例代碼

發布時間：2020-09-24 05:11:07 來源：腳本之家閱讀：114 作者：liuyazhuang 欄目：編程語言

做過大型軟件系統的同學都知道，隨著系統數據越來越龐大，越來越復雜，隨之帶來的問題就是系統性能越來越差，尤其是頻繁操作數據庫帶來的性能損耗更為嚴重。很多業績大牛為此提出了眾多的解決方案和開發了很多框架以優化這種頻繁操作數據庫所帶來的性能損耗，其中，尤為突出的兩個緩存服務器是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實體類

package com.lyz.entity; 
import java.io.Serializable; 
 
/** 
 * user實體類 
 * @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 
  * @param keys 
  */ 
 void delete(List<String> keys); 
  
 /** 
  * 修改 
  * @param user 
  * @return 
  */ 
 boolean update(User user); 
 
 /** 
  * 通過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的實現類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;  
/** 
 * 接口的實現類 
 * @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 
  * @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("數據行不存在, 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key刪除單個 
  */ 
 @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"); 
 } 
 
 /** 
  * 設置userDao 
  * @param userDao the userDao to set 
  */ 
 public void setUserDao(IUserDao userDao) { 
  this.userDao = userDao; 
 } 
}

9、溫馨提示

項目下載地址：Spring-Redis_jb51.rar

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持億速云。

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Spring整合Redis完整實例代碼

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