spring-data整合redis

1、jar包

   
        
            redis.clients
            jedis
            2.9.0
        
        
        
            org.springframework.data
            spring-data-redis
            1.8.1.RELEASE
        
    

2、redis.properties

redis.host=127.0.0.1
redis.port=6379
redis.pass=
  
redis.database=1
  
redis.maxIdle=200
redis.maxTotal=200
redis.testOnBorrow=true

3、spring-data-redis.xml

4、接口类

package redis.base;

/**
 * redis基础操作接口
 * @author [email protected]
 * @date 2017年3月9日
 */
public interface IRedisBasicDAO {

    /**
     * 写入一个字符串
     * 
     * @param keyPrefix 前缀
     * @param keySuffix 后缀
     * @param value     值
     * @throws Exception
     */
    void setString(String keyPrefix, String keySuffix, String value) throws Exception;
    
    /**
     * 获取一个字符串
     * 
     * @param keyPrefix 前缀
     * @param keySuffix 后缀
     * @return          值
     * @throws Exception
     */
    String getString(String keyPrefix, String keySuffix) throws Exception;
}

5、接口实现类

package redis.base;

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.stereotype.Repository;
import org.springframework.util.StringUtils;

/**
 * BasicImpl
 * @author [email protected]
 * @date 2017年3月9日
 */
@Repository
public class RedisBasicDAO implements IRedisBasicDAO {
    
    @Resource
    private RedisTemplate redisTemplate;
    
    @Override
    public void setString(String keyPrefix, String keySuffix, String value)
            throws Exception {
        
        if(null == keyPrefix || null == keySuffix || null == value) {
            return ;
        }
//      获得key
        String key = keyPrefix + keySuffix;
        if(StringUtils.isEmpty(key) || StringUtils.isEmpty(value)) {
            return ;
        }
//      写入redis
        /*redisTemplate.execute((RedisCallback) redisConnection -> {
            redisConnection.set(redisTemplate.getStringSerializer().serialize(key), 
                    redisTemplate.getStringSerializer().serialize(value));
            return null;
        });*/
        redisTemplate.execute(new RedisCallback() {

            @Override
            public Serializable doInRedis(RedisConnection connection)
                    throws DataAccessException {
                connection.set(redisTemplate.getStringSerializer().serialize(key), redisTemplate.getStringSerializer().serialize(value));
                return null;
            }
        });
    }

    @Override
    public String getString(String keyPrefix, String keySuffix)
            throws Exception {
        
        if(null == keyPrefix || null == keySuffix) {
            return null;
        }
//      获得key
        String key = keyPrefix + keySuffix;
        if(StringUtils.isEmpty(key)) {
            return null;
        }
        byte[] value;
        value = (byte[]) redisTemplate.execute((RedisCallback) redisConnection -> redisConnection.get(
                redisTemplate.getStringSerializer().serialize(key)));
        return (String) redisTemplate.getStringSerializer().deserialize(value);
    }

}

6、测试类

package redis.util;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import redis.base.RedisBasicDAO;

/**
 * 测试类
 * @author [email protected]
 * @date 2017年3月8日
 */
public class RedisTest {
    public static void main(String[] args) throws Exception {
        ApplicationContext context =  new ClassPathXmlApplicationContext("classpath:spring/spring-data-redis.xml");
        RedisBasicDAO redisBasicDAO = (RedisBasicDAO)context.getBean("redisBasicDAO");
        redisBasicDAO.setString("null", "pointer", "NullPointerException");
        System.out.println(redisBasicDAO.getString("null", "pointer"));
    }
}

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