springmvc集成使用redis
Redis安装
首先安装redis。这个就不重点介绍了。windos下载redis就行。
我用的是mac
用命令行安装的。
安装命令
yum install redis sudo redis-server
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
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 RedisTemplate redisTemplate;
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 RedisTemplate redisTemplate;
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);