Spring与Redis整合 博客分类: SpringRedis redisspring-data-redis
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2024-03-21 23:36:40
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commons-lang3-3.1.jar
spring-data-commons-1.11.0.jar
spring-data-redis-1.6.1.jar
jedis-2.6.0.jar
spring-XX-4.0.6.jar
在spring的beans.xml中添加:
<!-- 对象池 --> <bean id="jedisPoolConfig" 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> <!-- 工厂实现 --> <bean id="jedisConnectionFactory" 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="jedisPoolConfig" /> </bean> <!-- 模板类 --> <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"> <property name="connectionFactory" ref="jedisConnectionFactory"/> <property name="keySerializer"> <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"></bean> </property> <property name="valueSerializer"> <!-- default:JdkSerializationRedisSerializer --> <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"></bean> </property> </bean>
service实现层:
package com.edus.service.impl.demo; import java.io.Serializable; import java.util.HashSet; import java.util.Map; import java.util.Set; import javax.annotation.Resource; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.stereotype.Service; import com.edus.entity.Book; import com.edus.service.demo.IRedisDemoService; @Service("redisDemoService") public class RedisDemoServiceImpl implements IRedisDemoService { @Resource private RedisTemplate<Serializable, Serializable> redisTemplate; private static String PREFIX_USER = "book:"; @Override public void delBookInRedis(Integer id) { redisTemplate.opsForHash().delete(PREFIX_USER+id, id); } @Override public Book getBookFromRedis(final Integer id) { // redisTemplate.multi(); // redisTemplate.opsForHash().put(PREFIX_USER+id, "id", id); Book book = (Book)redisTemplate.opsForHash().get(PREFIX_USER+id, id); // System.out.println(book); // redisTemplate.exec(); return book; } @Override public void saveOrUpdateBookInRedis(final Book book) { // System.out.println("1xxxx="+redisTemplate.getConnectionFactory().getClass().getName()); // System.out.println("1default="+redisTemplate.getDefaultSerializer().getClass().getName()); // System.out.println("1key="+redisTemplate.getKeySerializer().getClass().getName()); // System.out.println("1value="+redisTemplate.getValueSerializer().getClass().getName()); //开启事务 // redisTemplate.multi(); redisTemplate.opsForHash().put(PREFIX_USER+book.getId(), book.getId(), book); // redisTemplate.exec(); } @Override public Set<Book> findBookListInRedis(Map<String, Object> args) { Set<Serializable> keySet = redisTemplate.keys(PREFIX_USER+"*"); Set<Book> resultSet = new HashSet<Book>(); for(Object key : keySet) { Integer id = Integer.parseInt(key.toString().split(":")[1]); Book book = getBookFromRedis(id); resultSet.add(book); System.out.println(book); } return resultSet; } }
或:
package com.edus.service.impl.demo; import java.io.Serializable; import javax.annotation.Resource; 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.serializer.RedisSerializer; import org.springframework.stereotype.Service; import com.edus.entity.Book; import com.edus.service.demo.IRedisDemoService; @Service("redisDemoService") public class RedisDemoServiceImpl implements IRedisDemoService { @Resource protected RedisTemplate<Serializable, Serializable> redisTemplate; @Override public void delBookInRedis(final Integer id) { redisTemplate.execute(new RedisCallback<Object>() { @Override public Object doInRedis(RedisConnection connection) { connection.del(redisTemplate.getStringSerializer().serialize("book.id." + id)); connection.del(redisTemplate.getStringSerializer().serialize("book.price." + id)); connection.del(redisTemplate.getStringSerializer().serialize("book.name." + id)); return null; } }); } @Override public Book findOneBookInRedis(final Integer id) { return redisTemplate.execute(new RedisCallback<Book>() { @Override public Book doInRedis(RedisConnection connection) throws DataAccessException { byte[] bid = redisTemplate.getStringSerializer().serialize( "book.id." + id); if (connection.exists(bid)) { byte[] nameByte = redisTemplate.getStringSerializer().serialize( "book.name." + id); byte[] nameVal = connection.get(nameByte); String name = redisTemplate.getStringSerializer().deserialize(nameVal); byte[] priceByte = redisTemplate.getStringSerializer().serialize( "book.price." + id); byte[] priceVal = connection.get(priceByte); String price = redisTemplate.getStringSerializer().deserialize(priceVal); Book book = new Book(); book.setId(id); book.setName(name); book.setPrice(Double.parseDouble(price)); return book; } return null; } }); } @Override public boolean saveBookInRedis(final Book book) { return redisTemplate.execute(new RedisCallback<Boolean>() { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { //connection.hSet(arg0, arg1, arg2) connection.set( redisTemplate.getStringSerializer().serialize( "book.id." + book.getId()), redisTemplate.getStringSerializer().serialize( String.valueOf(book.getId()))); connection.set( redisTemplate.getStringSerializer().serialize( "book.name." + book.getId()), redisTemplate.getStringSerializer().serialize( book.getName())); connection.set( redisTemplate.getStringSerializer().serialize( "book.price." + book.getId()), redisTemplate.getStringSerializer().serialize( String.valueOf(book.getPrice()))); return true; } }); } @Override public boolean updateBookInRedis(final Book book) { Integer key = book.getId(); if (this.findOneBookInRedis(key) == null) { throw new NullPointerException("数据行不存在, book.id = " + key); } return redisTemplate.execute(new RedisCallback<Boolean>() { public Boolean doInRedis(RedisConnection connection) throws DataAccessException { // if(book.getName() != null && book.getName().length() > 0) { byte[] key = redisTemplate.getStringSerializer().serialize("book.name."+String.valueOf(book.getId())); byte[] name = redisTemplate.getStringSerializer().serialize(book.getName()); connection.set(key, name); // } if(book.getPrice() != null) { byte[] key = redisTemplate.getStringSerializer().serialize("book.name."+String.valueOf(book.getId())); byte[] name = redisTemplate.getStringSerializer().serialize(book.getName()); connection.set(key, name); } return true; } }); } }
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