Spring+redis整合

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一、引入依赖jar包

<!--Redis start --><dependency><groupId>org.springframework.data</groupId><artifactId>spring-data-redis</artifactId><version>1.6.1.RELEASE</version></dependency><dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>2.7.3</version></dependency>   <!--Redis end -->

二、编写redis.properties

#redis中心redis.host=192.168.207.131redis.port=6379redis.pass=123456redis.maxIdle=100redis.maxTotal=300redis.maxWaitMillis=1000redis.testOnBorrow=trueredis.timeout=100000

三、配置applicationContext-redis.xml

<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:context="http://www.springframework.org/schema/context"xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd "><!-- 加载properties文件 --><context:property-placeholder location="classpath:redis.properties"/><bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">    <property name="maxIdle" value="${redis.maxIdle}" />          <property name="maxTotal" value="${redis.maxTotal}" />          <property name="maxWaitMillis" value="${redis.maxWaitMillis}" />          <property name="testOnBorrow" value="${redis.testOnBorrow}" />  </bean><bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">        <property name="hostName" value="${redis.host}"/>        <property name="port" value="${redis.port}"/>        <property name="password" value="${redis.pass}"/>        <property name="poolConfig" ref="poolConfig"/>    </bean>        <!--     <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">   --><!--         <property name="connectionFactory"   ref="connectionFactory" />   --><!--     </bean>   -->        <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate" >           <property name="connectionFactory" ref="connectionFactory" />           <property name="keySerializer" >               <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" />           </property>           <property name="valueSerializer" >               <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" />           </property>     </bean >                   <bean id="userDao" class="com.my.ssm.dao.impl.UserDaoImpl">    <property name="redisTemplate" ref="redisTemplate" />     </bean>   </beans>

四、User类、UserDao、UserDaoImpl

public interface UserDao {boolean add(User user);boolean add(List<User> list);void delete(String key);void delete(List<String> keys);boolean update(User user);User get(String keyid);}

package com.my.ssm.dao.impl;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.core.RedisTemplate;import org.springframework.data.redis.core.ValueOperations;import org.springframework.data.redis.serializer.RedisSerializer;import com.my.ssm.dao.UserDao;import com.my.ssm.po.User;public class UserDaoImpl implements UserDao {private RedisTemplate<String, User> redisTemplate;public void setRedisTemplate(RedisTemplate<String, User> redisTemplate) {this.redisTemplate = redisTemplate;}@Overridepublic boolean add(final User user) {boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {@Overridepublic Boolean doInRedis(RedisConnection connection)throws DataAccessException {RedisSerializer<String> redisSerializer = redisTemplate.getStringSerializer();byte[] key = redisSerializer.serialize(user.getId().toString());byte[] name = redisSerializer.serialize(user.getUsername());return connection.setNX(key, name);}});return result;}@Overridepublic boolean add(final List<User> list) {boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {@Overridepublic Boolean doInRedis(RedisConnection connection)throws DataAccessException {RedisSerializer<String> redisSerializer = redisTemplate.getStringSerializer();for(User user : list){byte[] key = redisSerializer.serialize(user.getId().toString());byte[] name = redisSerializer.serialize(user.getUsername());connection.set(key, name);}return true;}},false, true);return result;}@Overridepublic void delete(String key) {redisTemplate.delete(key);}@Overridepublic void delete(List<String> keys) {redisTemplate.delete(keys);}@Overridepublic boolean update(final User user) {String userId = user.getId().toString();if(get(userId) == null){throw new NullPointerException("数据不存在"+userId);}boolean reuslt = redisTemplate.execute(new RedisCallback<Boolean>() {@Overridepublic Boolean doInRedis(RedisConnection connection)throws DataAccessException {RedisSerializer<String> serializer = redisTemplate.getStringSerializer();byte[] key = serializer.serialize(user.getId().toString());byte[] name = serializer.serialize(user.getUsername());connection.set(key, name);return true;}});return reuslt;}@Overridepublic User get(final String keyid) {User result = redisTemplate.execute(new RedisCallback<User>() {@Overridepublic User doInRedis(RedisConnection connection)throws DataAccessException {RedisSerializer<String> serializer = redisTemplate.getStringSerializer();byte[] key = serializer.serialize(keyid);byte[] value = connection.get(key);if(value == null){return null;}String name = serializer.deserialize(key);User user = new User();user.setId(Integer.parseInt(keyid));user.setUsername(name);return user;}});return result;}public void addUser(User user){ValueOperations<String, User> opsForValue = redisTemplate.opsForValue();opsForValue.set(user.getId().toString(), user);}}

也可通过一下方法实现

这些方法获取到个接口，可以直接用命名模式操作redis服务器

public void addUser(User user){ValueOperations<String, User> opsForValue = redisTemplate.opsForValue();opsForValue.set(user.getId().toString(), user);}

测试

package com.my.ssm.dao.impl;import java.util.ArrayList;import java.util.List;import org.junit.Before;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.my.ssm.dao.UserDao;import com.my.ssm.po.User;public class UserDaoImplTest {ApplicationContext applicationContext = null;UserDao userDao = null;@Beforepublic void setUp() throws Exception {applicationContext = new ClassPathXmlApplicationContext("spring/applicationContext-redis.xml");userDao = (UserDao) applicationContext.getBean("userDao");}@Testpublic void testAddUser() {User user = new User();user.setId(1);user.setUsername("张三");userDao.add(user);}@Testpublic void testAddListOfUser() {List<User> users = new ArrayList<User>();User u1 = new User();u1.setId(2);u1.setUsername("zhangsan");User u2 = new User();u2.setId(3);u2.setUsername("lisi");User u3 = new User();u3.setId(4);u3.setUsername("wangwu");users.add(u1);users.add(u2);users.add(u3);userDao.add(users);}@Testpublic void testDeleteString() {userDao.delete("1");}@Testpublic void testDeleteListOfString() {List<String> keys = new ArrayList<String>();userDao.delete(keys);}@Testpublic void testUpdate() {User user = new User();user.setId(1);user.setUsername("aaaa");userDao.update(user);}@Testpublic void testGet() {User user = userDao.get("1");System.out.println(user);}@Testpublic void testAddUser1() {User user = new User();user.setId(22);user.setUsername("222");userDao.add(user);}}

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