本篇文章小编给大家分享一下springmvc集成使用redis过程代码示例,文章代码介绍的很详细,小编觉得挺不错的,现在分享给大家供大家参考,有需要的小伙伴们可以来看看。
spring集成redis
首先你需要下载驱动包,下载 jedis.jar,确保下载最新驱动包。然后导包。
在spring配置文件里我这是ApplicationContext .xml文件添加
然后用创建spring-redis.xml文件
写入
public class RedisCache { public final static String CAHCENAME = "niitcache";// 缓存名 public final static int CAHCETIME = 60;// 默认缓存时间 60S public final static int CAHCEHOUR = 60 * 60;// 默认缓存时间 1hr public final static int CAHCEDAY = 60 * 60 * 24;// 默认缓存时间 1Day public final static int CAHCEWEEK = 60 * 60 * 24 * 7;// 默认缓存时间 1week public final static int CAHCEMONTH = 60 * 60 * 24 * 7 * 30;// 默认缓存时间 1month @Autowired private RedisTemplateredisTemplate; public boolean putCache(String key, T obj) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serialize(obj); boolean result = redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { return connection.setNX(bkey, bvalue); } }); return result; } public void putCacheWithExpireTime(String key, T obj, final long expireTime) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serialize(obj); redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { connection.setEx(bkey, expireTime, bvalue); return true; } }); } public boolean putListCache(String key, List objList) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serializeList(objList); boolean result = redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { return connection.setNX(bkey, bvalue); } }); return result; } public boolean putListCacheWithExpireTime(String key, List objList, final long expireTime) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serializeList(objList); boolean result = redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { connection.setEx(bkey, expireTime, bvalue); return true; } }); return result; } public T getCache(final String key, Class targetClass) { byte[] result = redisTemplate.execute(new RedisCallback () { @Override public byte[] doInRedis(RedisConnection connection) throws DataAccessException { return connection.get(key.getBytes()); } }); if (result == null) { return null; } return ProtoStuffSerializerUtil.deserialize(result, targetClass); } public List getListCache(final String key, Class targetClass) { byte[] result = redisTemplate.execute(new RedisCallback () { @Override public byte[] doInRedis(RedisConnection connection) throws DataAccessException { return connection.get(key.getBytes()); } }); if (result == null) { return null; } return ProtoStuffSerializerUtil.deserializeList(result, targetClass); } /** * 精确删除key * * @param key */ public void deleteCache(String key) { redisTemplate.delete(key); } /** * 模糊删除key * * @param pattern */ public void deleteCacheWithPattern(String pattern) { Set keys = redisTemplate.keys(pattern); redisTemplate.delete(keys); } /** * 清空所有缓存 */ public void clearCache() { deleteCacheWithPattern(RedisCache.CAHCENAME + "|*"); } }
创建redis的配置文件 redis.properties。
写入
#redis config redis.pass= redis.pool.maxTotal=105 redis.pool.maxIdle=10 redis.pool.maxWaitMillis=5000 redis.pool.testOnBorrow=true redis.ip=127.0.0.1 redis.port=6379
这些根据自己的需求自定义配置就好了
这样redis就继承好了
SpringMVC中使用redis
创建一个redisCache类
import org.springframework.beans.factory.annotation.Autowired; 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.Component; import com.niit.util.ProtoStuffSerializerUtil; import java.util.List; import java.util.Set; /** * redis缓存 * * @author James * */ @Component public class RedisCache { public final static String CAHCENAME = "niitcache";// 缓存名 public final static int CAHCETIME = 60;// 默认缓存时间 60S public final static int CAHCEHOUR = 60 * 60;// 默认缓存时间 1hr public final static int CAHCEDAY = 60 * 60 * 24;// 默认缓存时间 1Day public final static int CAHCEWEEK = 60 * 60 * 24 * 7;// 默认缓存时间 1week public final static int CAHCEMONTH = 60 * 60 * 24 * 7 * 30;// 默认缓存时间 1month @Autowired private RedisTemplateredisTemplate; public boolean putCache(String key, T obj) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serialize(obj); boolean result = redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { return connection.setNX(bkey, bvalue); } }); return result; } public void putCacheWithExpireTime(String key, T obj, final long expireTime) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serialize(obj); redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { connection.setEx(bkey, expireTime, bvalue); return true; } }); } public boolean putListCache(String key, List objList) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serializeList(objList); boolean result = redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { return connection.setNX(bkey, bvalue); } }); return result; } public boolean putListCacheWithExpireTime(String key, List objList, final long expireTime) { final byte[] bkey = key.getBytes(); final byte[] bvalue = ProtoStuffSerializerUtil.serializeList(objList); boolean result = redisTemplate.execute(new RedisCallback () { @Override public Boolean doInRedis(RedisConnection connection) throws DataAccessException { connection.setEx(bkey, expireTime, bvalue); return true; } }); return result; } public T getCache(final String key, Class targetClass) { byte[] result = redisTemplate.execute(new RedisCallback () { @Override public byte[] doInRedis(RedisConnection connection) throws DataAccessException { return connection.get(key.getBytes()); } }); if (result == null) { return null; } return ProtoStuffSerializerUtil.deserialize(result, targetClass); } public List getListCache(final String key, Class targetClass) { byte[] result = redisTemplate.execute(new RedisCallback () { @Override public byte[] doInRedis(RedisConnection connection) throws DataAccessException { return connection.get(key.getBytes()); } }); if (result == null) { return null; } return ProtoStuffSerializerUtil.deserializeList(result, targetClass); } /** * 精确删除key * * @param key */ public void deleteCache(String key) { redisTemplate.delete(key); } /** * 模糊删除key * * @param pattern */ public void deleteCacheWithPattern(String pattern) { Set keys = redisTemplate.keys(pattern); redisTemplate.delete(keys); } /** * 清空所有缓存 */ public void clearCache() { deleteCacheWithPattern(RedisCache.CAHCENAME + "|*"); } }
写进和读取redis
String v = "test";
cache.putCacheWithExpireTime("key", v, cache.CAHCEHOUR);
String value = cache.getCache("key", String.class);
System.out.println(value);
然后集成成功。redis是将数据放进内存里。所以需要考虑做redis服务器时候的内存性能,还有redis的缓存策略等等。